drift motor tune question

[mat.roberts]

Hey guys you are the ones ti ask bout this I've looked at hundreds of threads about it but have not come to a definitive answer so here it is. I have an S14 rhd silvia with the Sr notchtop. Im going to be doing some mildly competitive drifting in Canada and Im wondering what mods i need to take me to 270hp. Im on somewhat of a budget so obviously Im not gonna go all out stand alone Im just wondering Uf the right bolt ons will get me there and if the oem ecu will hold at least till i can afford something better. 270 from 220 isn't really alot it seems to me. Thanks guys appreciate it! :bowdown:

[4x4le]

I havent messed with any s14 turbos personally but I have heard they are really close to the s15 turbo. I also for the life of me cant remember the size of s14 injectors so I could be wrong in saying you wont need a bigger maf and injectors but I think the stock ones will work with you.

You should get a 3" exhaust, fmic with hard pipes and a good bov like a hks ssqv. Also get a good electronic boost controller such as a gizzmo or a greddy type s.

Now you need a tune, and I really mean it, tune your ecu correctly for your setup. There are so many people that get by with generic things like safc's, fmu's or mail order tunes or random tunes they found on the net and flash but if your really going to be tracking your car there is no excuse to not do a real, custom tune.

[Slidin' Sam]

Is it kouki or zenki? The kouki turbine is the same as s15, just does not have the divided exhaust housing.

Just do the standard intake/exhaust/fmic and boost 1bar...maybe add a gtr fuel pump and some tomei pon cams (256) if you have the money. No tune is necessary for this set-up and it is very responsive and fun. Should put you around your target hp.

4x4, s14 sr injectors are 370.

[nismoman]

I'm gonna disagree and say that 1 bar on a t28 with 370 injectors is dangerous. Those injectors will be maxed. I would only try it with a wideband hooked up to make sure it doesnt go lean.

[mattsil80wis]

s15 turbo, 550cc injectors, n62 maf, tune

[driftrkp]

Is it kouki or zenki? The kouki turbine is the same as s15, just does not have the divided exhaust housing.

Just do the standard intake/exhaust/fmic and boost 1bar...maybe add a gtr fuel pump and some tomei pon cams (256) if you have the money. No tune is necessary for this set-up and it is very responsive and fun. Should put you around your target hp.

4x4, s14 sr injectors are 370.


my old s14 made 268whp on this set up at 13.5 - 14 psi with no cams. it was a very fun set up and the a/f was fine on stock injectors. boost up and bolt ons and your there

[aled]

s15 turbo, 550cc injectors, n62 maf, tune
The perfect setup.
A smaller Tomei cam setup too.

[mat.roberts]

Hey guys Thankyou so much for the help it means alot to me. I think my plan is just the bolt ons and 1bar boost and so i don't max out my injectors i could always add a for 4bar setup. Matsil80 yeah that's a kick ass setup def wanna go that route when i could afford it maybe after round three this year ill have the money. Its actually incredibly funny that you mentioned it cause i bought some poncams like 5 days before writing this post. Im hoping the cams give me a bit more tourqe but i mean the gains won't be huge till i make better power. I will be getting a custom. Tune just in a few months. Ill let you know how the cams go on top of this setup seeing as how i don't know anyone whose used them.thanks again guys appreciate it!!

[nismoman]

Get a wideband to monitor the a/f. 14 or 15 psi is maxing out the injectors!

[mat.roberts]

will def invest in a solid wideband from aem. yeah i know this injectors will be at around 99% ill look around for a deal on some solid s15 injectors in the meantime or something haha. thanks again nismoman!

[s tuned]

i run 560cc injectors, 264 bc cams, n60 MAF, t28 spec r and nistune and im making 300hp at 14 psi

[mat.roberts]

theres no arguing thats a great bang for your buck setup especially considering the mods listed half of which you can get on the zilvia buy sell for half price. i found out not too long ago there is a nistune certified shop 3 hours from my place so it sounds like when i can afford the tune thats what im gonna get. great power at 14psi i think the nistune system has gotten alot of great feedback and far superior to the rom tune if you can afford it and its available to you. i still cant get over that 14psi!! thanks for shedding some light on mods=results. what did yours cost and what was involved in the tuning process if you dont mind?

[Slidin' Sam]

1 bar on stock injectors is perfectly fine. people do it all day long over here without issues. I have never had a problem with it, nor has anybody I know.

[teh smithers]

Wait, so it would be safe to run 1bar of boost on an N62 MAF, bigger injectors, and such without a tune? I'm on a GT28RS by the way, on stock boost.

[aled]

Wait, so it would be safe to run 1bar of boost on an N62 MAF, bigger injectors, and such without a tune? I'm on a GT2871R by the way, on stock boost.
No.
Why would you skimp on tuning after spending the $ for larger injectors and turbo?

ROM Tuned ECU, Power FC.

I ran 14psi on my old S14 SR and the OEM injectors saw duty cycles just over 85%. I opted to upgrade to a 550cc injector (I planned a turbo upgrade) and tuned some fuel correction and deceleration on a SAF-C.

Had the option or choice to do it over again? I'd use a Power FC.

[nismoman]

wait, so it would be safe to run 1bar of boost on an n62 maf, bigger injectors, and such without a tune? I'm on a gt28rs by the way, on stock boost.

hell no!!................

[teh smithers]

Didn't think so, lol. Someone had mentioned earlier that you wouldn't need a tune for this level of mods... I was like :confused: But would 740's be overkill, or should 550's work just fine?

[murffy]

on budget just get some 550 cc injectors and a emange ultimate with a z32 maf u hit that 270 for sure bro keep ur turbo it can handle up to 14lbs of boost and the emange only takes up to 550cc injectors so maf like 80bux emange 400bux and injectors 200 so ur looking at about 700BUX give or take idk wat ur budget is but tat will get u there bro with a fmic and 3 inch piping hopefully u have all that already
gl

[aled]

Didn't think so, lol. Someone had mentioned earlier that you wouldn't need a tune for this level of mods... I was like :confused: But would 740's be overkill, or should 550's work just fine?
Yeah.
Don't get an Emanage^. I have not had much positive experience with them, although I know people who have...

Power FC is the way to go and is quite incredible when you factor in the price. If you are really looking for a Power FC, shoot me a PM.

550's will work just fine on a stock bottom end. What power numbers are you shooting for?

[nismoman]

on budget just get some 550 cc injectors and a emange ultimate with a z32 maf u hit that 270 for sure bro keep ur turbo it can handle up to 14lbs of boost and the emange only takes up to 550cc injectors so maf like 80bux emange 400bux and injectors 200 so ur looking at about 700BUX give or take idk wat ur budget is but tat will get u there bro with a fmic and 3 inch piping hopefully u have all that already
gl

that turbo is efficient at 18psi and some people run more. you could easily see around 330hp with a good tune. emanage is....eehhhh. if you have a good tuner go for something like nistune its like $400, or a ready made proven to work, plug and play tune from enthalapy is like $400. Power FC is great but overkill for a basic setup and you still need access to dyno tuning to do it right

[krookedstyle]

3" exhaust, downpipe with turbo elbow FMIC blow off valve, 550 injectors, safc, freddy intake manifold, boost controller tuned to 14psi. and a tune. I made close to 300hp. On my kouki s14 into my s13 coupe. No b.s. Stock t28 bb MEAN...You don't need a maf the stock one will handle up to 300hp. Anything more and it will shit on you.

[mat.roberts]

hey guys thanks for all the info just an update i was able to get my hands on a t517z for sale so thats now been added into the mix. im gonna go with hks 550cc injectors and the z32 just cause like krooked said and is kinda a given i will get shit on. so im going to be going with a pretty legit setup is the freddy manifold worth it considering im adding the poncams? and another question since they are both in the similar price range is the emanage able to get me a nice 300-320hp tune?

[mat.roberts]

actually giving it some thought i don't the the e-manage will do what i want. its gotta be rom or nistune

[teh smithers]

Yeah.
Don't get an Emanage^. I have not had much positive experience with them, although I know people who have...

Power FC is the way to go and is quite incredible when you factor in the price. If you are really looking for a Power FC, shoot me a PM.

550's will work just fine on a stock bottom end. What power numbers are you shooting for?

I'd like to get to 300+. At this point I don't have the dough to pick up the PowerFC, as the car needs other things right now. Just trying to get some figures worked out.