Thread: 11.5 AFR at 8760 rpms???
07-06-2012, 11:21 PM #1
11.5 AFR at 8760 rpms???
Is it safe if I lean it a little? Stock pistons, 17lb boost.
07-06-2012, 11:25 PM #2
Maybe just a tad. 11.7-11.8.
I am just not sure with stock pistons with that much boost and that high of revs.
07-06-2012, 11:35 PM #3
07-06-2012, 11:40 PM #4
I would leave it be. I run mine 11.6ish at those rpm's.
07-07-2012, 01:34 AM #5
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07-07-2012, 02:33 AM #6
you should leave it...the little bit of speed/power gained from going leaner isnt worth a motor.
07-07-2012, 06:42 AM #7
Don't touch it, you need the additional cooling.
07-07-2012, 07:28 AM #8
IMO the stock pistons should be good for 30+psi but about 25+psi the stock rods are done
I see most run race ecu's for rec use that sounds like a good way to destroy a motor
Also a turbo motor cannot use ecu's mapped for a SC
11.5 sounds good for very hot weather as it gets cooler the afr will rise
07-07-2012, 08:05 AM #9
07-07-2012, 09:35 AM #10
do you mean they bend at 30psi($450hp) or the will last a few seconds or good to use at 450
Because they look like they will bend about 30+psi
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