2G Help to reach 350whp

[austin johnson]

Many have asked, but few have the info I want. I'm wondering what I can do to my 2g GST to get her to 350whp.. I have a FMIC and jdm CAI and a boost controller. It's peaking at about 14psi. Stock turbo. I want to stay factory bolt on since I have a full exhaust on the way. I know everyone does the 16g route but is that the most effective way? If it is what pump and injectors should I run (prefer e85 compatible) and etc.. If there is another route that's more effective and won't burn a hole in my pocket I would love to hear! Thank you everyone for viewing.

 

[GSLENK]

The easiest way is to take your car to a dyno and have the guy there change the correction factor so that your car reads 350whp.

Seriously... Pump AEM 320 E85 or similar e85 pump. Injectors: as large as you can afford (hint, just about any size can be had for $200 used if you are patient) anything 1250/1650 will cost about 250-300 used.

Bare minimum: pump, injectors, clutch, ecmlink v3 full, turbo. I am a big fan of the 20g for a killer street fast-spooling turbo.

 

[gofast63]

550cc injectors ( you can find these on craigslist for cheap )
16g
Safc ( if you know how to use one. If not then save for Dsmlink.)
255walbro fuel pump
Upgrading your exhaust system would help it breath.
This would get you pretty close. I run 20-25psi. The 16g is a huge difference from the t25 and it pulls hard.
I'm sure theirs something else I'm forgetting

There's probably going to be some people ragging on you cause this stuff is all over the forums. Just be sure to search before you post.

 

[austin johnson]

Yeah that's why I felt bad but I would like complete specifics you know? Thank you guys for the comments! I was thinking either 16g or 20g with correct manifold, Megan racing DP And srs catback. Then 1000cc injectors and 255 pump. I have a 18g turbo off of a evo x but I read it will take some work to make it work.

 

[gofast63]

It should have the t3 flange, it should be direct bolt on. If you use the 1000cc injectors and run e85 that should get you to or above 600cc. You would need to do the math on that so you know. I would buy stuff used to save money

 

[Priority DSM]

Few have the info?

Hmmm.

You are suspect.

http://www.dsmtuners.com/threads/2g-dsm-upgrade-paths.486217/

Along with the 1,500 other posts concerning your concern.

I feel no pain.

 

[gofer]

Bare minimum to get to 350whp...
ARP head studs / clutch and pressure plate that can hold 400tq / 1150cc injectors or bigger (since you're wanting to run E85) / Walbro 255HP or bigger fuel pump / Adjustable Fuel Pressure Regulator (afpr) / ECMLink V3 / 272 cams / wideband / boost gauge / intake / exhaust / boost controller / blow-off valve

The 1150's or bigger will be overkill but trust us, get the biggest one's you can afford because it leaves you room to grow. I've been through 3 injectors sets because I kept maxing them out as I continued making more power.

Check the classifieds often, after a few weeks you'll find a set of injectors in the size you need for a fraction of what they'd cost new.

...Use are build guides, they are a bit dated but give you an idea of what you'd need. DSM Upgrade Path

 

[Talyn]

You don't need e85 to get to 350. Your goal is similar to what I started out aiming for, I was shooting for 400 bhp. A 20g should suit you well for that goal, an FP exhaust manifold, a rewired walboro 190lph(if you get a 255 you'll need an AFPR, and you don't need that much fuel, you'd be wasting money unless you plan to go bigger later.) and 650 or 720cc injectors.
If you insist on e85 compatible, DW makes their stuff e85 compatible, I have their injectors, and while I never quite got to start tuning and dialing stuff in(Ran out of time to finish, along with my sending unit line breaking), Even without any fine tuning and a ballpark deadtime my 1200cc DWs were idling pretty smooth. And you'll need to tune obviously, I went the dsmlink route, which I'm also a fan of.

 

[pimpy rider]

Bare minimum to get to 350whp...
ARP head studs / clutch and pressure plate that can hold 400tq / 1150cc injectors or bigger (since you're wanting to run E85) / Walbro 255HP or bigger fuel pump / Adjustable Fuel Pressure Regulator (afpr) / ECMLink V3 / 272 cams / wideband / boost gauge / intake / exhaust / boost controller / blow-off valve

dont forget 16g or bigger turbo! and you definately dont NEED 272 cams to hit 350. turbo sizing will dictate how easy it will be to hit 350. If you have a big enough turbo, you can hit 500 plus hp with stock cams.

 

[vince93]

What gofer said plus a SBC clutch is what i reccomend, from TMZ.

 

[GSLENK]

550cc injectors ( you can find these on craigslist for cheap )
16g
Safc ( if you know how to use one. If not then save for Dsmlink.)
255walbro fuel pump

This would get you pretty close. I run 20-25psi. The 16g is a huge difference from the t25 and it pulls hard.

Says he who probably does not have a 350hp car. Might be a huge difference from a t25, but a 16g + 550 injectors is not = 350whp. As a reminder, our cars are 200 crank factory rated which is about 160-180 whp on a good day for most.

It should have the t3 flange, it should be direct bolt on.

Wrong again... Evo x turbo is far from bolt on and is NOT worth it at all.

 

[vince93]

I'm with gslenk on this, hell you are lucky if you get 300 on pump gas with a 16g, let alone 350 on just tiny 550cc.

 

[Talyn]

Like I said, 650 bare minimum, 720 or more ideally, there's even a tech article, specifically for figuring out the injectors and pump size you need:
http://www.dsmtuners.com/threads/injector-and-fuel-pump-supported-airflow.366003/
spyderturbo007 Already did the legwork for us. 80% duty cycle is widely accepted as the safe duty cycle when sizing injectors, though 650s could probably cut it with a little bump to fuel pressure.

 

[Chumpaumpalumpa]

I like 20g route. I have one and it spools quick and I made 350AWHP on 91 octane. So with your FWD and less losses you'll make more and you probably have 93 octane which you can make more like 400+ and a bit more on E85 but much more than that and you're beginning to max the turbo but you're shooting for 350WHP on a gst so this is more than adequate and will probably make you want to do an AWD swap My bottom end is a bit overkill but you can take a look at my profile to get a basic idea. Any other questions you have just give us a shout!

 

[LaMont Randell]

Hey on the attached file is what is done to the car. A guy at advanced auto parts said I should be close if not dead on to 300 HP. once I bought the car I was doing maintenance stuff which I am doing now still. I guess I'm just wondering what you guys think. The cams should be the next step right?

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