Guest dustyz Posted June 12, 2003 Share Posted June 12, 2003 ok i have a red 1978 280z with the bumpers removed and a zxt engine the big npr intercooler that i had to have cut up and welded back togather to fit the motors rebulit so is the turbo its stock and i have a centerfforce df clutch waiting to go in and looking at some type of engine management want to go full stand alone microtech are sds not the megasqurit becuse i will mess that up and dont what to wait that long so now with the ?? any one have any exp with any of these ems pls chime in i know this ones goofy but when i go to buy injectors i want to get large ones they seem to be the same price for 550-1000cc so if i get 1000cc inj could my motor handle them if is only pushing 300 hp i will have stand alone before the inj and iam still rocken the 4 speed how long will that hold up to a 17 year old abuseing it and yes iam 17 so iam bringing the average age of this site down alot and ive seem to have ran into a a road block with the datsun its kind of the whole time are money thing right now iam out of school for summer so iam working around 60 hours a week and almost all of that goes to the datsun but and its a big but with me working all that time i have no time to work on the datsun but i had a friend that was working on it for cheap but he kind of got tied up in something else so now iam stuck paying the normal price for stuff and that sucks alot anybody know anybody in north ga that can work on a datsun if iam going to pay full price i would like to know that they know what there doing and iam going to that z car meeting in sep at the sliver dolla race way iam bringing my dad becuse he old and so i can race whos all going to be there well i have to go to work now so i cant proof read so iam am sorry for any mistakes and thanks i love coming to this forum and reading all the post except some of the dumb kid post you know who you are (hope fully iam not one ) any way thanks dustyz Quote Link to comment Share on other sites More sharing options...
CU Zcar Posted June 15, 2003 Share Posted June 15, 2003 On injectors...from what I read, people seem to have a hard time getting a good idle with huge injectors, up beyond 5/6/700cc. Some advice I saw someone else give once was to figure out what your power goals are, and use a formula to figure how big an injector you'd need to support that kind of power (it's somewhere in the archives here, and elsewhere on the internet), and then add some "cushion" area to account for the accuracy of the formula, or for a little extra growing room. I've got a 4spd in my 280 (still just a mild NA motor) but I beat the crap out of it, I have been for over a year now, and it seems to take whatever I dish out. The 5spds I had were pretty tough, I'm not sure if the problem I had with the last one was my breaking something or just a worn linkage though. I'd say stick with the Nissan tranny until you find it to be your weak link, that's what I'm doing, and there seem to be a few here anyway who say the same thing (hence the reason I'm willing to try it ). Quote Link to comment Share on other sites More sharing options...
yo2001 Posted June 15, 2003 Share Posted June 15, 2003 Stock AFM will do. Standalone is not going to make you any faster instantly if you don't have un equipment to tune it. Quote Link to comment Share on other sites More sharing options...
Guest dustyz Posted June 15, 2003 Share Posted June 15, 2003 well i know it wont make me magicly faster but i am having, so many problems with my system that i want something to fix it and i am not a wiring wiz at all and i want around 400-500 hp so i think i will need it any way i think i read that somebody did idle 1000cc inj with haltech really low and they had good driveablty but it was a supra so dont know if it will work on a l28et should i get 2 walbros fuel pumps are just one big one thanks dustyz Quote Link to comment Share on other sites More sharing options...
Guest dustyz Posted June 15, 2003 Share Posted June 15, 2003 oh and i will be taking this to a dyno shop after i get it all put togather so they can tune it Quote Link to comment Share on other sites More sharing options...
CU Zcar Posted June 16, 2003 Share Posted June 16, 2003 Well running an aftermarket FI system should give you the flexibility you'd need to get the engine to run well with huge injectors. If those are your goals I don't have any more advice to give I hope to be satisfied with less than 250hp and the '83 ECCS for a little while, by the time I get there I may know more about what I want to do next with this/other cars. Dunno about the fuel pump issue either, I have a feeling though that for the time being (the 300hp you mentioned your engine putting out for now) that one pump would suffice... Quote Link to comment Share on other sites More sharing options...
Guest dustyz Posted June 16, 2003 Share Posted June 16, 2003 oh i wish it was put out 300 now but its not i just think thats about what i can get with the stock injectors and thats what wel tune for when i first get it all warped up with the microtech Quote Link to comment Share on other sites More sharing options...
yo2001 Posted June 16, 2003 Share Posted June 16, 2003 Ahh, 260-270HP is about it from the stock injectors. There is a formula to figure all that stuff out. Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted June 16, 2003 Share Posted June 16, 2003 and if u want to make any real big power ur gonna need to work on the head, lots of porting. what im doing is this to my 280Z, im dropping in a L28ET motor in that will be sporting aftermarket forged pistons, race prepped stock rods, not sure on valves and etc yet. I want a bigger cam, but i cant say which one, as i know NOTHING about cams for this motor. injectors will be some where near 550cc's, along with a TO4E turbo. Im still doing alot of research on a stand alone so i cant say whats better, or not but alot of guys on this board has worked with mostly all of them for the Z. Like you im lost of alot of things on this motor, but everyday i learn something new. on tranny, my 4-speed might be "ok" not sure, im gonna run a rebuilt 280Z n/a tranny. Im looking for 350rwhp on pump gas, fully tuned. good luck. mike Quote Link to comment Share on other sites More sharing options...
BRAD D Posted June 16, 2003 Share Posted June 16, 2003 On a turbo 6 it almost works out that 1cc can feed 1hp, so 550cc would be the biggest I would try and run on a L28ET. The 2 valve head has a hard time getting more than 500HP. Quote Link to comment Share on other sites More sharing options...
Guest dustyz Posted June 16, 2003 Share Posted June 16, 2003 yeah i keep on runing into that wall so for the time being i am just going to get stuff i can swap later onto the 1jz??? motor stuff like big turbo big injectors and standalone and just see what i can get from a stock l28et no porting or interals just a lot of boost and alot of fuel and see how long it takes me to blow it up that way if i want to go big i just have to swap motors again Quote Link to comment Share on other sites More sharing options...
Guest dustyz Posted June 16, 2003 Share Posted June 16, 2003 yeah i keep on runing into that wall so for the time being i am just going to get stuff i can swap later onto the 1jz??? motor stuff like big turbo big injectors and standalone and just see what i can get from a stock l28et no porting or interals just a lot of boost and alot of fuel and see how long it takes me to blow it up that way if i want to go big i just have to swap motors again Quote Link to comment Share on other sites More sharing options...
Ivan280zt Posted June 16, 2003 Share Posted June 16, 2003 bone stock long block l28t 350rwp all day long. Ivan Quote Link to comment Share on other sites More sharing options...
Guest ON3GO Posted June 16, 2003 Share Posted June 16, 2003 ivan ur car has 350RWHP? thats awesome, is that on pump gas? also if its ok with you can you tell me your motor specs, and like turbo and what parts your running to make that kind of power. also how its it like to drive ur car with that much power?? fun i bet also how do you hook on the street? sorry for all the questions... Thanks Quote Link to comment Share on other sites More sharing options...
Ivan280zt Posted June 16, 2003 Share Posted June 16, 2003 Mike sorry for not making it clear i was kinda in hurry at the moment. no my car is not making that power actually my car is not running yet (i just got done wiring up the haltech e6k so i hope to get it running soon). jtaylors car makes 360whp (orange one with 18inch tsw's). his setup is as far as i know: stock head, stock bottom end (milage unknown but alot for sure), hks head gasket, ported intake madifold, 60mm tb, corky bell front mount i/c (very big dont know exact # on size), hks racing blow off valve, msd blaster coil, msd 6a ignition box, dont remember what kind of spark plug wires, one step colder ngk plugs, t-rex fuel pump, stock fpr, svo 360 cc injectors, STOCK electornics but afm has been tighten so car can idle pretty good, and last but not least is turbo specalties t-62 turbo. now dont confuse this with turbonetics T series turbochargers its smaller than that. this is what i know. they keep exhaust housing from t-3 and machine it all out to fit t-4 whell in it (that way you can keep your stock exhaust madifold ) then they take compresor housing from some diesel truck and then they put some salt and paper mix and stir it well so that way they get what they call t-62 which is really equialant to some nice t4 (as you can tell i dont know crap about this lol) but you can call turbo specalties in birmingham and they can help you out (btw turbo is about $850 i think). so all this added together pump gas and 19 psi it made right about 360 whp. then he got some very nice head work and with about 14psi it made about same hp. ohhh i almost forgot he got his turbo valve cover painted same color as his car so that right there was good for another 15 hp to the wheels that is honest word . his car is down for some serious mods right now but i can tell you that he has sds waiting to be put in and custom sheet metal intake madifold so he is hoping to hit over 420whp on stock internals so will see what happens then. thats about all i can remembar right now. Ivan Quote Link to comment Share on other sites More sharing options...
yo2001 Posted June 16, 2003 Share Posted June 16, 2003 I know the past owner of JT's car. The spec of the turbo was 60-1 in I think E housing and .68 T# turbine housing with P-trim. Quote Link to comment Share on other sites More sharing options...
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