Opinions on tune and setup

[98gst14b]

Hi all, my profile is current and my goal is to get 500hp running 93 oct with 10% ethanol, along with 100% alcohol injection. So far I have the mbc set at 29-30psi, running 20 degrees of timing afrs around 12:1 egts at 1200 with zero knock so far. I really dont know wether or not I should keep pulling fuel it seems lean as it is! After i get my street tune done I was planning on taking it to a dyno tuner Does anyone have experience with 60 trims and the power they can make? Thanks for your opinions.

 

[turboglenn]

Well, my previous setup was e85 and a 57 trim, 500hp from a 60 trim would be pushing it to the very limit but it MIGHT be possible (i had to shoot laughing gas to break the 500 mark over the numbers you see in my avatar, that was on the 57 trim at 30psi, peak timing of 24*, AFR's of 12.3 - 12.5:1

Going much leaner isn't going to net you much more power, i would MAYBE go 12.5 but honestly i run mine that lean because when i get near 11's it will usually get a miss in the top end or show some rich knock

I think picking up more power from here will be in maximizing your setup to flow perfectly and have everything work together as best as possible, the tune can only get it all running right and extract what's possible from the hard components safely. Form here it's going to be the little things like setting your cam timing to extract more power, eliminating kinks, restrictions and such from your intercooler piping, making sure there's no boost leaks etc.. just find every little thing you can work to improve or do to free up airflow and thus power. Like i said, the tune can only do so much and that's keep the AFR's safe and deliver a good timing curve, there gets to be a point where there's not really any more you can pull out with the ECU and at those AFR's and timing you're about there... you might pick up a few HP here and there and a little torque from fine tuning the timing curve maybe leaning out the top end to 12.5 or so but the car's peak torque areas usually make more power set to the rich side where your 12:1 will be best

I see a lot of ebay parts and i'm not sure how well those particular parts work, and further more how well they are matched to work witheach other. PUlling 500 out of that setup will be a tough goal ( my goal was the same thing 500 from my 57 trim) and i worked on the same setup for 10 years of tuning and doing every little mod i could to get to the 438hp (which could have been ebtter but my turbo had beat up compressor wheel blades from lots of use and abuse and still made that power on e85 and 30 psi)


look in my profile/mods list and see if there's anything that gives you ideas.. and make sure you find and do all the little free/near free things you can (like 1g throttle body and 2g elbow,or just a 1g NT throttle body etc.etc..)

 

[98gst14b]

Very helpful info

So I need a gt35r then

 

[98gst14b]

On ecuflash does anyone know the differances between the maps?? i.e. high octane fuel map 1, 2, and big map. What is the differances?? If I cange map one and duplicate it to map 2, the big map looks off, if I setup the big map it throws off the other two, which one do I use? or di I use all of them??