I'm currently at 500 HP on GTX3076 / 0.63 on 93 and methanol (50%), 17 psi. Bottom end is built and 9.5/1 comp, stock tranny/rear, blah, blah, blah.

** Goal is to get to 600 or 625 HP MAX and keep everything else the same, like the quick spool of current set up too. It's just a weekend warrior drive, not daily.

What's the best way ?
1.) Larger turbo / lower psi ? Which turbo considering my goal (GTX35 ? BW ?) is too keep quick spool ?
2.) Keep same turbo and just switch to E85, upgrade injectors, fuel lines, etc (ditch the 93/meth) ?

I'd be trading in whatever turbo, injectors, meth, etc to help lessen the upgrade costs.... I'm just looking for any opinions on what they think is the most COST effective and easiest way to achieve the goal.

Thanks for any comments !

 

The gtx3076r cannot support your power goals. You would at the minimum need the gtx3576r but for your goals I would go with the gtx3582r with an e85 tune. That should meet your goals with no problems. And of course you would need 2000cc injectors and a Walbro e85 400 pump for those goals.

 

You can get close to 600whp with e85 without spending a lot of money. I would max out the current turbo and see if you like it. Ditch the meth its a ticking time bomb.

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Ive got a few friends running this level. Fast spool and 600whp could be had with a GTX30 E85/race fual or water/meth about 25-30psi. Or GTX35 twin scroll/divided manifold with same fuel.

 

Care to guesstimate on what HP I could get with E85 upgrade only before it would max out (same GTX3076) ?

 

* Why do you say meth is bomb ? personal bad exp or just reading up ? If the meth is so bad, why do they have a kit and why do other people, tuners use it ?

 

I've been told the same by others just wasn't sure which is the best, most cost effective way to go.
Any of your guys have issues running that high psi ?

 

There have been a number of builds that have popped using meth. Usually due to one cylinder not getting proper amount. Adamsi is one that comes to mind.

Gtx3076r starts to run out of steam with my setup past 20 psi. 600whp is plenty for this car. Anymore you start asking for trouble.

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Evans said 600 should be doable on the gtx30 on e85...

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