Thread: 400whp, Whats needed?

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2010-12-29 00:16:08

#101

xavi1320t

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Originally Posted by Coheed

My 740cc injectors are at 90% duty at 450whp or so according to datascan. But I hear that the injectors can support 550whp or so with more pressure. My maf readings are also very near the 5V max.

For 400whp I think the 740cc injectors are the best bet. Along with a z32 maf and you are set.

Wow ok, I guess I should sell my subie injectors then. Although I really don't know if I will be aiming for 400 whp I think I have the mods to do it. I should get those rc 750s then huh? I could get them for around 200 bucks that just got cleaned and checked about 2 weeks ago. Thanks guys! All of you guys are the best!

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2010-12-29 09:49:11

#102

ezspoolin

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Join Date: 2009-11-04
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I'd just go nisda with speed density and call it a day bro. No maf's or any of that bs plus you can tune your own shit, and injector scaling is easy.

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2010-12-29 11:14:03

#103

Andreas Miko Online/offline status of Andreas Miko is unknown

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740cc injs will support 520 WHP with no problem.

370cc injs run around on SR20DETs making 250-260 WHP all day long ( these are facts )

740cc injs are 100% bigger than 370cc injs ( 370 x 2 = 740 )

250 WHP x 2 = 500 WHP
or
260 WHP x 2 = 52- WHP

cars that I have done for customers or cars that I have seen with 470-520 WHP @ 3 bar with 740cc injs have to be in the 50-60s.

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Good Thoughts Bring Good Vibes Which Bring Good Reasoning

I Am A JWT Dealer And VRS Dealer.

If you need any help 305-282-3643

I sell SR20VE, SR20DE and SR20DET motors

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2010-12-29 11:46:00

#104

xavi1320t

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Originally Posted by ezspoolin

I'd just go nisda with speed density and call it a day bro. No maf's or any of that bs plus you can tune your own shit, and injector scaling is easy.

Whats nisda? Care to elaborate? Thanks Miko for the info! Still wondering about that det,rr head swap?

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2010-12-29 14:29:00

#105

BenFenner

The People's Mod

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The real problem is that there don't seem to be many 600cc side-feed injectors available. So you have to ring out the 520s or 550s or overshoot with the 740s. =(

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2010-12-29 17:12:47

#106

96_b14

What Car??

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sti 520s at 4 bar will be fine for 400whp

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2010-12-29 18:30:13

#107

Andreas Miko Online/offline status of Andreas Miko is unknown

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Originally Posted by 96_b14

sti 520s at 4 bar will be fine for 400whp

520s @ 4 bar are cutting it way to close at 400 WHP. That is right at the ragged edge.

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Good Thoughts Bring Good Vibes Which Bring Good Reasoning

I Am A JWT Dealer And VRS Dealer.

If you need any help 305-282-3643

I sell SR20VE, SR20DE and SR20DET motors

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2010-12-29 19:03:56

#108

Jerimiah

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Join Date: 2007-12-15
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Originally Posted by xavi1320t

Whats nisda? Care to elaborate? Thanks Miko for the info! Still wondering about that det,rr head swap?

Nisda is a set-up a local shop (here in Utah) does. They use a honda distributor, honda harness and honda ecu/tuning on an sr20.

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1999 P11 - Boosted.

Originally Posted by ashtonsser

I built it to go fast with what money i had to put into it. Its called a budget build for a reason. Just because i do it differently than you would have done something doesnt make me wrong.

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2010-12-29 19:11:04

#109

Shawn B

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Originally Posted by unijabnx2000

From the readings ive seen around, the RWD SR20s seem to make a lil more power with the same turbos @ the same boost...or maybe im crazy..?

Originally Posted by Keo

RWD normally have the better manifold, jpipe and less exhaust bends.

Thanks Keo that makes sense.

Also, would/could the transmission/drivetrain loss be different from FWD to RWD?

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2010-12-29 19:49:59

#110

Jerimiah

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Originally Posted by Shawn
Thanks Keo that makes sense.

Also, would/could the transmission/drivetrain loss be different from FWD to RWD?

Definitely. Theres more rotating mass that creates parasitic drag in rear wheel drivetrains.

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1999 P11 - Boosted.

Originally Posted by ashtonsser

I built it to go fast with what money i had to put into it. Its called a budget build for a reason. Just because i do it differently than you would have done something doesnt make me wrong.

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