guywiththez

Made 297/261 on an HR with test pipes back no other engine mods. Anyway to squeeze 300 out of it or suggestions on what to upgrade next before boost? Also running a little lean on idle, afr reads 13.1-12.8. Any suggestions on how to fix that/ whats causing it?

travlee

iTrader: (8)

Get it tuned to correct the lean issue and what kind of dyno? Seems high, my hr with full bolt ons only hit 286 on mustang dyno

bealljk

iTrader: (13)

easiest solution would be to have your tuner add 1% or 2% to the correction factor ... reprint dyno sheet and show your friends!!

If your only looking at easy bolt ons (assuming you havent already) consider a true dual exhaust and/or some intake mods (including water/meth injection) that'll provide a cooler charge - something that'll allow more timing (increase torque) and something that'll promote free flow(increase hp). All will require a re-tune.

13.1(.89 Lambda) to 12.8(.87 Lambda) doesnt see that far off on an NA engine - more fuel doesnt always mean more power. If you dropped down to 12.5(.85 Lambda) no one would blame you, you'll mitigate some heat and it might give you a few horsepower but nothing to write home about.

Save the time & hassle ... put the money & effort towards an FI build ... just my 2cents

guywiththez

It was a dyno jet 224x. Don't mustang dyno's read a lower than what it actually is? I definitely got alot better response.

If nothing breaks and I don't have any crazy bills pop up, I'm planning to see boost before the summer.

CK_32

iTrader: (1)

That's cause your HR has a shitty Chevy badge on it.

travlee

iTrader: (8)

actually.. i cant think of anywhere my car visibly says chevrolet

savarenova

Try to advance timing by 2-3 degress in WOT and add 5% to k-value to make more richer is the easiest way.