Drax240z

I could see the need for the 6 speed with a 4.11 or numerically higher rear, but I wonder if your first gear is getting close to being low range 4wd type gearing at that point. In all the Z's I've had (3) I've had no problems cruising at 3000-3500rpm. And the thing is, that cruising below 2500rpm is really tough, because you don't have a lot of power. The other thing to consider with the T-56 is weight. Its a beefy trans, with a really beefy flywheel too. (which of course could be lightened) If I were doing a 6speed swap to an L28 powered car I'd be looking at 6 speeds that are behind similar powerplants. (not sure of ratios) Supra, S2000, BMW-getrag's, that idea. Either way, I don't see it happening for less than about $2k US, providing that you get the tranny for under $1500, due to the modifications required. Sorry if this sounds harsh, I'm just in techno-babble mode and spurting things out off the top of my head. ------------------ "Nothing is fool proof to a sufficiently talented fool." Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I think most people will agree, that if you are going to run a turbo engine, your best bet is the factory one. Granted its not perfect, but its allready been engineered to handle boost. The only drawback I have with it is the low compression ratio. If I had the $$$ I'd try to get my CR to 8.0:1-8.3:1. (custom forged pistons) ------------------ "Nothing is fool proof to a sufficiently talented fool." Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I actually saw this car at the autoshow in Vancouver a couple weekends ago. Quite impressive, though I think for the $475,000 I'd rather get a 550 Maranello, a 360 Mondena, and have enough left over for a few dozen well setup Z's. ------------------ "Nothing is fool proof to a sufficiently talented fool." Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I would strongly suggest that you contact HKS, since they sold you the product they should be able to tell you. Out of curiosity, how much are those things running? I am still looking for a quality BOV... ------------------ "Nothing is fool proof to a sufficiently talented fool." Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Ah I guess since you are both approching dedicated drag racers it makes sense... so what are you hoping to get for your old NPR? ------------------ "Nothing is fool proof to a sufficiently talented fool." Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

VIDE webpage... well its sortof up, but its under major reconstruction. http://www.pacificcoast.net/~jak/vide.htm I think membership was $25 a year. Its a small club (50 members) and everyone is really friendly. That website hasn't been updated in quite some time. I really should try to push to get the new one done. ------------------ "Nothing is fool proof to a sufficiently talented fool." Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Scottie, what have you found? ------------------ Nothing is fool proof to a sufficiently talented fool. Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Hmm, thats tough... Boost isn't produced unless you are under load, which means you can't sit around idling to 15psi. Maybe get a friend to stand on your hood with a bottle of propane, checking for leaks as you rip up and down your street? Hehe. No, don't do that. Just check and re-check your clamps on your piping. Inspect your vacuum hoses for cracks or splits. You are right, its pretty hard to check at 15Psi without getting really tricky. (rigging up a test with compressed air to leak test your intake system at 15psi, you'd need to somehow block the air to the cylinders however, and that would be a real PITA) As for piping size, its not so much a limiting factor by moving to 2". What the primary concern is as far as I know is air velocity. If you push air through your I/C too fast, it won't be cooled enough. I've read that your target air velocity should be around 450feet/sec. If you go too low, you have a lot of extra volume in your system, which will lead to lag. If you go too high, you end up choking things off, running the I/C in-efficiently, etc. I would want to err on the side of having it too big, rather than too small. (and granted, running 3" or something huge is terrible, when I say "too big" I mean 2", 2,25", etc) Again, I doubt this is the problem you are having, but when you do get things sorted out with your boost you may consider this. One more thing: Get a second opinion on piping size... Hehe. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

R180 - Nissan diff. with 180mm ring gear R200 - Nissan diff. with 200mm ring gear R230 - Nissan diff. with 230mm ring gear R180s were commonly in the 240z, 510 (I think) and a bunch of 4x4's. R200s are much beefier, and were in the 280z, 280zx, 300zx (84-89, often called Z31's), and naturally aspirated 300zx (90-96, often called Z32's) R230s are from the 300zx twin turbo's (Z32s, 90-96), as well as the infinity Q45 I believe. Probably lots of other cars too, the 240sx, 200sx, etc probably had some variation on these. Basically all RWD nissan diffs fit in here somewhere. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Don't run it until you hear pinging. Sort out the problem without hearing any pings at all if you can. There just isn't that much margin for error there. (ie: by the time you let off the gas after you hear pinging, it could be too late) As for my dizzying intellect, I haven't even begun yet! For my next trick, I'll explain how to put a universal defibulator in your intake tract, thus producting electromagnetic boost throughout the chicken flange. I'll quit while I'm not too far behind. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

With the power some people here are puting out, I can see the need for a turbocharged shifter. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

PS: going to a 2" diameter pipe yields and airspeed of: ~305ft/sec. Substantially slower. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Sounds like you have a leak somewhere if you ask me. Intercooler piping, manifold, etc. I've been following your progress, and I was thinking that maybe you went too small a diameter on your I/C piping. You were using 1.5" piping, correct? Lets say you have about 260hp. Thats approximately 400cfm of air. In a 1.5" pipe: Airspeed Velocity = airflow/area = (400ft^3/min)/pi(1.5/2)^2in^2 * 144/60 Airspeed = 543 ft/sec That's pretty darn high, though smaller than I expected. I was thinking that perhaps your small diamter pipe was causing an increase in drag, and therefore flow loss. It is still possible that this is occuring though. On the other hand, you should have great throttle response! That said, I doubt this is your problem, as you are getting 14psi in 2nd gear, but not 3rd. I would check and double check for a leak. I'd also plan on going to 2" intercooler piping when you can. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Thats a great page! Thanks a lot for posting that, lots of great info there. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Well I got a nice 240sx throttle body, its so much bigger than the stock turbo one. That blows me away. A puny little TB on the 2.8L turbo engine, and a huge one on the 2.4L NA engine. Anyone else seeing problems here? Anyway, the "normal" way I've heard this conversion done is to make a 1/2" aluminum spacer to place between the intake and the throttle body, so that the linkage doesn't make contact with the runners. I was looking at mine yesterday thinking I didn't want to make a plate for that, and voila, everything works perfectly if you put the TB on upside down. I racked my brain and I can't fathom how this could cause a problem. Anyone? Basically this puts the linkage away from the engine block and the TPS nearer to the block. Alos, do potentiometer type TPS's have 3 prongs? I know the old idle/off idle/full throttle ones do... ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Yes, I am in the VIDE. That was the group I was talking about. Try emailing Greg Macauley at znut2@home.com and he can fill you in on the club. He's a great guy and I am sure he'd be willing to show you a car or two. We have a meeting on the 22nd of April I believe... (I can't make that one though, finals... argh) ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I read somewhere recently that the 1st (or was it 2nd?) generation RX7 blowers are a pretty easy conversion to the early Z. Can't offer much more help than that. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Ah, revelations! Anyway, I just tested out the 3 TPS's I had in the garage, a 280zx one, a 240sx one, and the ford one from Randy. I've got it all figured out now. So yes, the potentiometer type do have 3 prongs, same as the older style... ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Moved this to the turbo forum from the 6 cyl forum. Sorry I can't offer much advice on the problem, though I am following it, so place post when you find the answer! ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

I'm never really sure whether to use blue locktite, or red on a lot of things... maybe someone can help me out. The rule I've been using is anything less than 1/4" gets blue, over 1/4" gets red. (so that the bolt doesn't break when loosening) Obviously things like the flywheel will get red. If I was to put red loctite on wheelstuds, for instance, would I be able to get them off again? (I am going to be running bolt-on wheel adapters, and I'd like to make sure those inner connections don't come loose) The only time I have used Red loctite on wheel studs was on a caterpillar 789A Haul Truck. Then again that was a 5 ton wheel, and well you get the picture. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Hey Bud. Well in a word, "no" I'm not on the road yet. My date once again has been pushed back, as I wait for parts to arrive. I am hoping and shooting for a late april startup date... and I am moving to Victoria May 1st! So it should be easy for us to hook up once I am down there. I've been waiting a week to get my damn flywheel and pressure plate bolts, all that are holding me up from having the engine in. Luckily I have TONS of other stuff to do still, so the time is not wasted. I can hook you up with lots of Z guys around Victoria. Just reply here or email me, and I can give you a few phone numbers/email addresses of the club members down there. (I am in a datsun club, based in victoria) ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Ah but 15k would be sooooo easy! Forged Pistons - $900 Spearco/cartech I/c - $800 Big Ball bearing turbo -$1200 External wastegate - $300 GreEdy BOV - $30,000,000. (ok, about $200) Turbo Header - $1800 Turbo Timer - $200 550cc injectors - $350 SDS EM-6F instead of E - Extra $500 Scotties Downpipe - $150 Get the picture? All these would be in addition to what I had in the other post... upgrades I will do eventually. (well, most of them) I haven't even touched anything BUT the engine either. This engine in an early Z with no other upgrades would be downright SCARY! ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

As far as I know, Z32 NA's had R200s, Z32's TT's had R230s. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Heh, you'd be surprised where the money goes!! Just my engine alone... (and this has been a low budget job from the start) Rings, bearings, gaskets - $400 Timing Chain Kit - $143 Junkyard Engine - $342 Headword - $463 Rebuild work - $300 SDS system - $1373 CFDF clutch, MSD 6A - $768 240mm FLywheel + surfacing - $120 240sx TB/TPS - $100 Izusu NPR Intercooler - $278 ---------------- I can't even guess how many $5-$20 bills that should be mixed in there as well. There is over $4K JUST on my engine. And remeber, I'm being CHHEEEEEEEEAAAP!!! (whenever its possible, or makes sense) These are prices in Canadian $$$ btw. To convert to american $, divide by 10000. ------------------ Richard Lewis - 1972 240z, Powered by a Nissan 2.8L Turbo Inline 6. Drax240's Turbo Site Beginners Turbo FAQ & Answers

Hmm. Not trying to step on any toes here, but I wouldn't discount a supra. 3.0L. Yes, no where near what you will see in a muscle car. But displacement isn't everything. Here are a couple things from a supra that ran one lap of america a few years ago. http://www.supras.com/~riemer/onelap2000/ 4th place overall. Ahead of them, a Dodge Viper, Mercedes-Benz, and A Mallet Corvette. Behind them: Corvette ZR-1, Viper Venom 600, Lingenfelter Corvette, Turbocharged M3 (Prepared and driven by Dinan), Superformance Cobra... tons more. Well you get the idea. Anyhoo, some of those pictures at that link are pretty cool, check them out.