Quote:
Originally Posted by steve99
If you are not already running headers that will give a bit more torque midrange, uel headers seem slightly better at low midrange torque than el headers but el generally produce slighty more top end power.
Billet poer blocks BPB, will bring your peak power a bit lower in rpm range and a bit more midrange but they dont work well with FI or E85.
E85 already provides more torque throught rpm range due to ability to run more ignition advance on that fuel.
Even though OFT tunes are off the shelf one size fits all they seem to perform well even when compared to custom tunes or people who have opted for custom e tune
Their is maybe a few percent extra to be gained in places and maybe tidy up maf scale and lean it out slightly ,clean up bit of knock on some fuels but no big gains to be had.
Rule of thumb with these cars seems to be NA plus full bolt ons and tune will net you maybe 35 wheel horsepower on E85 maybe 25 on good petrol.
If you want more FI is the way to go
There is just no big gain NA
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Thank You! Very informative!