Tune, CAI, Cat delete and a happy dyno.
Bingo, I think the happy dyno is the most important part.
I have a CAI, Off-road H, and Steeda tune and pulled 393HP which was a corrected number (1.05 was the factor, over 100F).
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Tune, CAI, Cat delete and a happy dyno.
This but weld your resonators back in
I'd highly recommend a Dyno tune over a handheld, you cant tune for driveability with a handheld...its a generic way to tune and there are variations in these cars. You'd be much happier IMO with a custom tune.
I see your in Goldsboro....I bought an old F250 from there acouple years back. Not sure whats in the area but it's worth the drive if you have to for a custom tune.
Goodluck
I am just starting the debate on my perf mods....exterior & Susp are done now.
I want to see what you would recommend for me to get to 400hp & what it would take for me to get to 422hp!
I don't want to give up ANY hp/tq down low just to gain it at peak.
CURRENT: 369hp/350tq
MODS: GT500 AB's, JBA After Cat H-Pipe, No resonators, ROUSH CAI.
1. So what will it take to get to 400rwhp!?
2. So what will it take to get to 425rwhp!?
Simple combo. JLT intake, O/R x pipe, tune. Add a Boss intake and long tubes to get over that 422 bump and rev it to 7500. The car already has a peaky power band so don't worry about midrange, the Boss intake adds power where you need it.
A few independent tests have shown LT's don't have much if any gains over an Offroad X/H. Spending the time and money on just the sound (which is awesome).
That's for peak numbers, it's shown they make up for the small peak gains by increasing power under the curve. Obviously not worth it to me but if the op wants peak power and wants to keep mid range power up LTs are a good choice.
The OP IS looking for peak numbers so LT's won't do him any better, just cost more. I agree there do make more power down low, but OR pipes don't loose any compared to stock. LT just add more.
Getting a solid 422 should arguably require a Boss manifold, the losses in low end associated with said manifold can be largely negated with long tubes.
I have boss intake , lethal off road h- pipe, Jlt cai, flow master axle back with e85 and just made 422/369
I want to try e85, but there are not enough stations for me to DD without worry. How many miles per tank do you get now? Maybe I could get an e85 tune just for drag racing.