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  1. Planning a blow through set up with either Weber’s or Mikuni’s (which ever I can get my hand on) I have seen it done before and would like to know what I should expect as far as build goes, which parts I may need, and what my viable boost options are with this build.
  2. Currently building an L28ET and I an looking to buy: 1. Megasquirt relay and cable (MSRelay-C / MSRelayCable) 2. 54 mm Optical Trigger Wheel for Nissan L28ET 3. 440cc Injectors 4. Fuel Rail, 11mm injector size Thank you!
  3. Hey guys. So Ive previously done a L28et swap previously back in the day and car ran fine. Just did another 81 L28et swap into my series one 240z and got it all bolted up and cranking. Now, on the donor car the car started up and ran up and down the block before I took it apart( 2 years ago) so things seemed all functional at least back in the day. Issue I'm running into is the car won't come on. And when it does start briefly, it dies within 3 seconds. I Bought a new fpr and verified that there is fuel and pressure (36psi) while car is off and in the ON position. There is verified spark in all 6 sparkplug wires. I've got two separate grounds on the engine so engine and car is well grounded. I also took the fuel rail off and verified that while cranking the Injectors are indeed spraying and there isn't infection leaks. Below is a YouTube video link I uploaded for your viewing pleasure haha. The ECU light seems to come on then shut off after cranking and sometimes intermittently the Injectors will stay on buzzing even if I stopped cranking. Anyway, any idea what's going on? https://youtu.be/p-DhNG0mq7E Your help is Much appreciated!
  4. Thought I would actually post my build in the project section since this is a project. As the story goes my 1995 240sx was stolen on 10/21/12. Had SR20DET S15 with the S15 6speed, Nistune ECU management. Tomei 272/272 cams. 750cc injectors, Z32 MAF. AEM tru-boost controller. Ran the J30 dif with abs sensor that I used with a Digital decoder to convert signal for the speedo. Full gauge setup last tune done on the car in July put 305 HP to the rear wheels at 15lbs of boost. Car had working A/C. Fortune 500 coilovers, Isis rear adjustable suspension. Paint and body work done in July as well, Navan front bumper, side skirts and rear valiance. Here is a dyno pull!! http://s158.photobucket.com/user/melbellwood1/media/1995%20Nissan%20240sx/20110923_162204.mp4.html Here is a run at the track!! http://s158.photobucket.com/user/melbellwood1/media/1995%20Nissan%20240sx/20120113_185224.mp4.html The gray 240 is a friend of mines, He runs deep into the 11's at the track makes 390hp runs sticky drag radials all with A/C! Car was recovered 3 days later stripped. Did not have full coverage, my stupidity. Makes ya sick. Now onto the next project. Found thru the internet in Salt Lake City Utah. Car originally bought by person when living in California. Car was originally green and repainted in the early 80’s red. Late model 1974 260Z. Car had updated DGV carbs installed. Western Star wheels and headlight covers with a rear deck louver. Car ran great for short trips to work and out. But my first road trip to a car show about 60 miles away the car overheated on the freeway cruising at 70mph. So switched out for a new radiator and thermostat. First upgrades was a twin pipe exhaust through twin glass packs. Sound is awesome. Power is limited. I was originally going do a head swap, raise the compression and run triple 2 barrels. I wanted to get 200+ hp. After driving the car for 3 months and missing the pull of a turbo, I decided to do a turbo. Didn’t help that a close friend drives a Golf daily with 400+ hp to the front wheels and owns a tuning shop. I decided from research (not deep enough to add a turbo to the 260Z motor because I am over 4 times that cost so far and still counting). Looking it over I thought with intercooler and buying all the parts that I could do this with only about $1500 out of pocket and I would have a turbo driver! HAHAHAHA..... Plans are to be a driver with some track use. Here are some of my trips to time attacks and road course racing. http://s158.photobucket.com/user/melbellwood1/media/Tooquick260z/20130216_150116_zps0eee095d.mp4.html At the point of putting the parts together and driving my car some issues started happening to the 40 year old car. The transmission that worked flawlessly started being difficult to put in first gear (after removal realized it was the slave cylinder no pressure). It developed an exhaust leak, thought it was the new exhaust that I installed. During removal of the intake realized that the #6 cylinder exhaust bolts were gone, yeah missing. Also the head gasket was leaking. I found great deals on all the parts and put them together. Turbo, ECU, AFM, wiring harness etc. Look at the boxes of parts WOW! I located a P90 head and had it rebuilt and flycut. Bought some cam tower shims from Derek, member on hear from Ocala. I put new valves from the 75-78 head with some addition spring spacers got them lined up. Before.... After.... Bolted to the head with cam timing done. Cleaned the engine compartment and painted with a few coats of clear. Looks like a deep dark hole where all the money has gone. Who’s counting right! While this was going on my brother toasted his 1993 300zx by letting the timing belt break, can you say interference. With the tranny going bad(auto) and a/c problems and other issues he decided to part it out. So, I purchased a lot of the parts from him. Breaks, Diff, MAF, Master cylinder and booster, and drive shaft to put in my Z. To put all that stuff on I purchased the rear setup from TechnoToyTuning. Nice stuff. Rear Z32 diff mounts, coilovers with Tokico’s. Old and new clutch, I should hook now!!! Handle the projected 250 HP! So since I had a 6 speed in the stolen car I decided to go with the same tranny. S15 6speed. I researched and found a few people with attempted installs of this tranny but no one had a step by step build. I posted I wanted to do this and a fellow member Xnke (Jacob) said he could help. He said to send the 6 speed with an S30 bellhousing. So I purchases a 6 Speed from JDM Tech of Orlando put them on a crate and sent to Xnke. He then cut the S30 bellhousing and mated it to the S15 6 Speed. Jacob informed me that this is actually a Mazda MX-5 6 speed. he can source and work on these tranny's! Awesome. Here are pics of taking the S30 tranny out and apart. Then with the 6 speed back ready to be installed. Znke even machined the speed access hole for the S30 speedo cable. He got the 4.11 speedo gear that will work great with the Z32 4.09 rear diff. Tranny installed and mounted in Stock tranny mount! Street T installed to run the turbo oiling line. Electric fans installed,,,, Isis 12" fans Stay tuned for the process.......
  5. Does anyone have a set for sale? I can't afford to buy refurbished ones. I have an ultrasonic cleaner and test bench so it's okay if they haven't been cleaned. Thanks!
  6. Looking for Z32 TT Rear sub frame assembly. I bought one from a seller on ebay and it turned out to be a short nose R200. The pickings are pretty slim at the junk yards in North texas so trying my luck here. Specifically looking for R-230, Wheel hubs, Brakes, and ebrake assembly from a Z32 Turbo car to finish up the swap in my 280. If you have any of these parts and are in North texas or willing to ship please let me know. I JUST WANT TO DRIVE MY CAR AGAIN!! I have 2 longnose R200's id be willing to trade or just sell outright, a couple sets of axles, and of course an entire Z32 N/A car rearsubframe. Thanks!
  7. Hey everyone! So I'm planning on picking up this 280zx Turbo next week. I want to use the engine, wiring harness, etc. for a turbo build for my 260z and I figured it'd be easier to buy the whole car than to piece everything together separately. Would anything else off this car be useful to me? The only thing is it's an automatic but I could find a 5 speed from an N/A? He's asking $1500, I'll post a link below and would love to hear what you think it's worth. Thanks! https://myrtlebeach.craigslist.org/cto/d/1982-datsun-nissan-280-zx/6377046535.html -Austin
  8. So you may have seen my build thread. I am converting my N/A L28 to turbo using the stock N42/N42 motor with a 2mm HKS head gasket and a compression ratio of 7.65:1. Upon my research I have found that finding the exact turbo for this build is alot harder than I though. And requires some pretty good knowledge of how turbos work, compressor maps etc.. I've done some searching here and there but havent seen anyone doing my setup so far with the N42 combo with the 2mm gasket. Feel free to chime in and I'm curios to know what turbos you guys are running, and also if you have some helpful advice to steer me in the right direction that would be very helpful as well. I will continue my research either way. Here is what my goals are: Full spool by 3k-4k rpms. 300whp capable. 500-900 dollar price range (preferably around 700-800 if possible) These are the things I can think of at the moment, I am probably forgetting something. but a 3-4k spool seems like the best for the rpm range of this build (6500). Feel free to chime in with any advice, criticism, or whatever you'd like! I am wanting to learn, and wanting to make sure my setup is right the first time. Like I said earlier I will continue this research but I figured I'd put this post out here so I can see what people have to say. Shameless build plug >Click Me<
  9. Can anyone tell me which vac hose to tap for a mechanical boost gauge on an L28ET? I took a pic. Bonus if you can draw an arrow pointing to a specific hose!
  10. I've been doing hours of research and have decided to get a boost gauge for my 280z with L28ET turbo swap. The problem is, I don't really like the look of any of the mechanical gauges. I really like the Speedhut one where you can "Design your own" and has an LED warning light: http://www.speedhut.com/gauge/GR-BOOST-01/1/Boost-Vac-Gauge-30inhg-0-20psi-(w--warning) I called and they said this was an electronic gauge. I know that installing a mechanical one is easy, but is an electronic boost gauge just as simple? It looks like speedhut supplies you with a pressure sensor and sensor wiring harness. It seems like you would just tap into the vacuum line with the T fitting, plug in the pressure sensor to the t-fitting, and run their sensor wiring harness to your gauge instead of a vacuum line like you would for a mechanical one. Is this correct?
  11. So about a week ago my car started to have issues when it got up to temp. It would originally start, idle, and run fine, but after the car began to get warm it would lean out like crazy (have a wideband installed) and there would be no response when throttle was applied under load. It did this for a few days until it decided to completely die on my way home from the gym. After a few minutes the car would start and idle lean on the side of the road, but then die immediately with any throttle (not under load). The engine is from a 1983 280zx turbo. After a little bit of research I'm wondering if it is my Crank Angle Sensor in my distributor, but I'm still very confused. I don't think it's a wet Throttle Position Sensor because I had that problem recently and I removed it/dried it out and the car ran fine. Also the symptoms are different due to not even idling rather than failing at 2000rpm. Short video with symptoms: https://streamable.com/nn9ls
  12. I'm getting tired of the vibrations and broken U-joints associated with the stock half shafts so it's time for an upgrade. I'm looking for a pair of CV axles from either a 280zx turbo or a 300zx turbo. Post here or PM me about anything you've got. Thanks in advance!
  13. Hi everyone, I recently picked up an L28ET with a T5 transmission. It's missing a few bits and pieces- water pump (cheap and easy), distributor cap (also cheap and easy), AFM, ECU, and harness. Of course I'll need a driveshaft and diff (or at least the driveshaft flange from it) as well. This will be going into a '76 280z. I'm planning on having it be my summer project that I can work on in my free time. I want to tear it down and replace what needs it, then paint it, put it back together, and get it running. Once the ball is rolling, I want to replace the J pipe with a FMIC. Planning on a modest same side in/out intercooler from CX Racing to make the intercooler piping easier and less complex. 24"X7"X3.5" core dimensions so it's a couple feet long, 7 inches tall, and 3.5 inches thick. Not very big but I feel like I don't need a lot with what I want out of the engine. My friend has done this swap in a '75 and his dad did his exhaust so hopefully I can commission him to help me out as well. I've read that I can get away with using the stock harness by swapping the guts of the turbo AFM into the stock AFM but I'm a bit wary of this and I haven't been able to find much about it- I just saw it mentioned in a small thread on another site. If anyone has a link to a more in-depth discussion or write-up, that would be great. Given the prices I've seen, I get the feeling it would make sense to go with a 300zx ECU/MAF upgrade from the outright. My reservation is that given my lack of experience, it may be safer to go with the stock setup and get it running before upgrading it. However, I'll be messing with wiring either way. Megasquirt is almost certainly above my head at this point. The turbo has a bit of shaft play from just a quick wiggle test. I'll have to check it further once I pull it off and see if it will rub at all. If not, I'll probably just rebuild it and run it for the time being. I've read that the 280zx turbo manifold flange is uncommon. Will a different turbo require changing the flange, or is there one I can use without modifying it? My horsepower goals are fairly modest in my opinion, at least for now. The stock rated 180bhp is fine until I start to upgrade things. I'd be happy with putting down 200 whp and right now I feel like anything over 250 whp would be excessive (and yes, the bhp and whp distinction was intentional). I'd like to avoid boost until ~3000-3500 rpm to keep it tame around town and cruising on the freeway. I know that is generally determined by the turbo and intake/exhaust setup but I'll need to read more about how to build it to keep it in that range. Any advice and links are appreciated. Like I said, I've been doing a lot of reading but a lot of information is scattered and difficult to find. These are the areas that I'm uncertain about after the many hours of reading and searching I've done. - Brandon
  14. (Not sure where to post this) I cross posted this to members projects as well. Hello, Was browsing multiple forums and decided to try out Hybridz for advice. I bought a 1977 280z Frankenstein of a car with an '83 280zx turbo engine swap in 2014 for around five grand. I drove it around for a year or so and it died on me after removing the previous owners sound system. Life got in the way and the car had a parasitic draw and sat for around 15 months. I just brought it to a shop and had the fuel system flushed with new filters, however, got robbed on the price in my opinion. I did some general maintenance (oil, spark plugs, coolant) and have been driving it around for the past week. The car is far from stock and I was hoping some of you guys could help me by identifying what I have. Any help is much appreciated! Below is a numbered imgur album. Sorry it is alot of pictures. My knowledge is weak and I know I need to find a service manual, but I don't know where to start. Its pretty fast when the turbo kicks in, I believe its running around 12 pounds of boost if the gauge is accurate. Definitely kicks your head back. http://imgur.com/a/4uGkb
  15. As the title says, I'm looking for the wastegate housing that bolts to the back of the turbine from a stock 280zx turbo. I'd possibly be interested in picking up a complete turbo too, if necessary. Again, thanks in advance!
  16. Hi all, I've finally decided to crawl out of my cave and surface my build here. I felt like I was taking more from this forum than I was giving. My build used a TON of info that I was able to unearth via this site. My hope is that my build adds to the plethora of information on here and helps others as much as it has helped me. Anyhow, I've been trying my best with the limited network/connections I have to get suggestions on where I should start with jetting for my turbo surge tank set up. I feel like I hit a dead end. I know that I have to fine tune the jetting for MY set up...so I'm currently in the process of installing a wide band O2 sensor and a boost gauge. However, does anyone here with experience have a ballpark estimate on jet sizes in an application like this? I don't want to start tuning my engine and have it catastrophically fail or damage my newly rebuilt motor because my jets are way out of line. Here is my set up: Engine: L28 N42 Block E88 Head (Debating on whether or not to install my spare P79 head in) 280zx Turbo dished pistons .020" oversize 1mm headgasket Stock L28 rods 280zxt stock exhaust manifold Custom 2.5" to 3" turbo back exhaust T3 Turbo w/internal wastegate: Compressor: Trim:55 Inducer Diameter:50.5 mm Exducer Diameter:76 mm A/R:0.5 Turbine Trim:73 Inducer Diameter:65.5 mm Exducer Diameter:55.9 mm A/R:0.63 Triple Mikuni 40PHH Carbs Main Jet: 145 Main Air Jet: 200 Pilot Jet: 60 Pump Nozzle: 0.45 I was able to find one member on here who ran a similar set up with a bone stock N42 block/internals 20+ years ago. He ran a 145 main jet. However, I was not able to find out what size his air correctors were. Any suggestions on baseline jet settings for a set up like this? Or am I just on my own with my O2 sensor analysis? I have included pictures for you! Please excuse the mess, it's still under construction. Thanks in advance!
  17. I want to share with everyone my DIY intercooler sprayer. I went to find a windshield fluid reservoir from a junkyard but couldn't find anything that I liked. Then I ran into this: http://www.midwestbusparts.com/index.php?main_page=product_info&cPath=16_319&products_id=2046 My Streetsmart boost controller controls a relay that powers the built in pump and activates at certain boost pressure or RPM. I made a bracket from cutting up a straight price of aluminum from the Home Depot and bolted it to the factory battery tray and a factory hole in the fender.The size is awesome and it fits perfectly using factory mounting holes. I have two patio mister nozzles each attached to the front license plate mounting tabs. With my setup, if I put them higher than this, the water sprayed all over the hood/engine leaving spots every where. This initially created a syphon when first kicked on as well but I fixed that with a simple anti syphon/drip valve designed for backyard misters. Theses where hard to find ironically and only found them on Alibaba Express and I had to buy a 50 pack for $10 but only needed one. Windshield washer fluid has worked the best when it comes to minimizing water spots under the hood. Alcohol would be better but washer fluid is cheap. I haven't measured the benefits yet but when I do I'll post it, I can't imagine it's not effective. It drains quickly if I set the boost controller to activate it at lower psi, slower if set to higher pressures. Same would go for RPM triggering. This same system can work with a basic switch versus using an electronic controller if so desired.
  18. Hello everyone my name is luke and i have a 74 Datsun 260z l28et project that I'm going to be documenting my progress on . I swapped an 81 l28et into it and am currently doing a Vems v3.7 install. I want to make a thorough write up to make standalone install on these motors (or in general) easy to understand. In my setup my motor is mostly stock except for the Vems, a straight exhaust and the common deletes (egr,ac, etc...) In this write up I will cover the basic aspects of engine management. Crank/cam sensors, injectors, ignition, map sensor, coolant temp sensor, TPS, and O2/egt sensor CRANK SENSOR- for my crank sensor I will experiment with using the stock 81 l28et toothed CAS wheel (90 tooth) with a retrofit VR sensor as this is what my Vems is configured for. the setup picks up a signal on cranking but i have not yet ran the car on it. INJECTORS- the injectors I am using are the stock l28et injectors. These are low impedance (ohm) and there are 2 ways to drive these injectors. This is general and applies to most if not all ECU's from MS to Vems to Electromotive. The first and more preferred way to drive low z injectors is PWM (pulse width modulation) this modulates current during injector hold (open) time to prevent injectors from overheating (with this method the you don't use inline resistors). The second method which I am doing is to run inline resistors on every injector and drive them as you would normal high z injectors. L28et injectors are approximately 2.2-2.3 ohms and I will be running a 50w 6ohm heatsink resistor inline on each injector. I will be putting the resistors on the ground(computer) side of the injectors . They will be mounted in the car near the ECU. Injectors are wired independently for sequential injection. TPS- in my setup I use a GM TPS 5v 3 wire. most TPS that are continuous not switch type will work. The stock one i believe is a 3 position switch. this will not work. I made 2 small brackets to mount it to the l28et throttle body. IAT- for my intake air temperature sensor I also used a GM IAT. It may be tricky to find a good spot to mount it keep in mind it has to be in the manifold area (after the turbo). MAP- for my manifold air pressure sensor I simply used the supplied Vems internal sensor. My pre assembled Vems unit has an internal 3-bar MAP sensor. There is a vacuum hose output on the ECU that is ran to a port on the intake manifold. Very convenient and simple. IGNITION- for my ignition setup I will be using a single coil ran through the stock dizzy. I will experiment with using the internal Vems igniter and using the stock l28et coil/igniter. Coil has +batt on one side and the other ground side goes right in the computer (coil-0) this is the simplest setup. In the future I plan on goin coil on plug or do a 3 coil setup. If you are doing a coil on plug setup you have to remember it's going to be waste spark Unless you have a cam position sensor (which simply indexes whether the motor is on exhaust or compression stroke). CTS- I have not decided on what coolant temp sensor I'm going to use Yet. The stock one is a 1 wire and I believe is useless. I believe GM sensors have the same size/thread. I will experiment with CTS and let you guys know what fits into my thermostat housing. O2 - For the oxygen sensor I will remove the old 1 wire sensor which is also useless and use a Bosch Wideband sensor. i believe The particular Bosch o2 is somewhat specific to Vems and I believe can even be used from any Audi/vw 1.8t. Wideband O2 sensors are essential in tuning a car. Vems have built in Wideband controllers so all I will need is the sensor which is under 100$. please correct me if any of my information is wrong. i anticipate to do the first start in about 1-2 weeks. i will continue to keep everyone updated and hopefully post some pictures soon.
  19. Want good condition ecu. Would like harnesz as well. Looking for maf as well
  20. I am looking to get a 240z or 260z from 1970-73' and would like to do a complete resto-mod. I am limited on knowledge and experience as well as tools and space. I would like this car to have the reliability of a daily driver, though it will most likely be used as a weekend car. I am looking for a z with minimal rust that runs, i would like to upgrade the suspension, fix any body issues and interior issues, then finally swap the engine. What would be my best option for an engine swap? Things I am looking for in this car. -Street legal in New York -200-300hp -very reliable -preferably na but not opposed to turbo if it is more reliable - Have it professionally done - quick linear throttle response I have been doing a lot of research on swaps but could not come to a conclusion. Which engine/tranny combo would be best for my goals and what is a ballpark price range i would be looking at. I understand the price could vary greatly, but considering I need to buy the engine and all components necessary for the swap and pay a professional to install it. Thanks,
  21. Made this turbo back exhaust for this Rb powered 240z, it's made from oval tubing and round tubing. Fully tig welded stainless steel. A HKS Hi-power muffler was used at the back. Rear spare tire well was cut in order to clear the enormous muffler ( customer didn't realize how big the canister was) Cut some sheetmetal and Beadrolled it for strength and style. Came out pretty clean and it sounds awesome! I will try and upload a video here or link to youtube.
  22. Hey everone, So i`ve finally gotten the chance to do a engine swap in my car and thought i would post up a build thread on here so show you what im up too and to get some advice from all you gurus.I`ve got a 1972 240z with a L24 with basically just a MSD ignition setup on it. But at work we had a pretty clean 7M-GTE sitting around so I picked it up for $200 and started my swap. The 7m had a blown hg so I decided to do a full rebuild as this will be my daily. An older picture of my car: *sorry for crappy cell phone pics What i currently have: when I first took it out of the box: after a little tear down/inspection and clean: the two mating faces: So far I have started by pulling it all apart and getting the head machined. Luckily it was only warped 0.005in needed a total of 0.012in to take all the pitting out of the block for the metal head gasket. Then I microsonicly cleaned all the parts and did a proper rebuild, with a little port on ex runners, polish on ex runners, and all new seals and gaskets all around. And of course some paint to make it look a little nicer. Picked up a freshly rebuilt R154 from a local mechanic: Had the flywheel machined: Started tearing down the block: As of right now I have a fully rebuilt head ready to be put on the block and the block was decked and honed. Im just in the middle of ordering some parts then I'll put it all together!! I litterally cannot wait to drive this car when its boosted. its a long awaited dream of mine. Any questions, opinions and comments are welcome!! just don't hate on the 7M to bad, I think since I am building it properly it will be good as a daily with 250-300bhp Chris
  23. This is really cool, and way overdue for the marketplace. Most racers already ran -6 A/N individuals to Weber DCOE's from a fuel distribution log... Cost is comparable to new Webers, and the hidden TPS Option keeps everything away from prying eyes! http://www.jenvey.co.uk/products2/twin-throttle-bodies/dcoe-heritage-bodies/heritage-dcoe-twin-body-40-48mm-tdsxx Crap, thinking about this, I should likely have put this in Fuel Systems Sub Forum. Mods move if you like.
  24. Here is the last dyno run we did to tune the car. It is a blast to drive. There are 29 pulls on this zip drive. You can just look at the last 3-4 pulls as they are the final tune. 225hp with 255 tq on the dyno. Think I am conservative enough on tune for longevity. Still need to work on decel, and initial tip in. Had multiple issues to deal with at the dyno. Kept losing power to the TPS(was the connection being loose on the spade to fuse panel). Blew coupler off did not know it for first 10 pulls. Pulled the power to 3 injectors by accident while closing the gaps on spark plugs. Had the vacuum lines to the boost controller wrong, hence could not build boost. Thats how it is when you don't finish things you start, or finish things others don't. Have to look over everything. Data Log Zip File.zip
  25. So I bought a 1981 Datsun 280zx with a stock N/a l28e engine in it...OR so i thought. We tore this thing apart and found that it had an F54 block with an N42 head, BUT, with dished pistons. So I'm not sure if these are early n/a dished pistons or just a turbo block that has been changed to run n/a. Anyway, the original plan for this car was a low boost turbocharger upgrade. so i bought a P79 head for it, dropping the compression ratio to 7.8:1, compared to the factory 8.7:1 with the flat top pistons. I started a new thread because i haven't seen one thread that i can relate to with this Mix-n-Match motor that i have. My questions are: 1. Why do you think this block has been pieced together from many different years of Zs and using dished pistons for an N/A build? 2. how much boost would be safe to run with that compression ratio (7.8:1) provided my AFR is in a relatively stoich range? I have a wide-band for it so i can monitor the mixture and will have an intercooler, bigger injectors, etc. Thanks to those who take time to reply.
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