Falling off at 5900 help!!!!
08-31-2011, 09:10 PM
#1
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Mar 2011
Posts: 68
Likes: 0
Received 0 Likes
on
0 Posts
Falling off at 5900 help!!!! Engine Specs:
434CI LS3 based stroker (sleeved 4.155bore x 4in stroke)
TEA Stage 2 l92 heads with hollow intake valves
.660 lift springs 170sear 450ish open pressure
stock ls3 intake
ported ls3 throttle body
1 7/8 long tube headers
ati super damper pulley stock size
11.7:1 compression
237/247 .614/.638 cam on a 114+3 specd by EPS
installed in a pontiac g8 with CAI, 6l80e trans with yank SS3200
here is the issue its only making 425whp at 5900 then falling over. not valve float just a slow steady curve downward. At a loss as to what can be causing it. We have injector and fuel pump left, we are maxing out the MAP sensor, it just wont make power. Any suggestions please.
434CI LS3 based stroker (sleeved 4.155bore x 4in stroke)
TEA Stage 2 l92 heads with hollow intake valves
.660 lift springs 170sear 450ish open pressure
stock ls3 intake
ported ls3 throttle body
1 7/8 long tube headers
ati super damper pulley stock size
11.7:1 compression
237/247 .614/.638 cam on a 114+3 specd by EPS
installed in a pontiac g8 with CAI, 6l80e trans with yank SS3200
here is the issue its only making 425whp at 5900 then falling over. not valve float just a slow steady curve downward. At a loss as to what can be causing it. We have injector and fuel pump left, we are maxing out the MAP sensor, it just wont make power. Any suggestions please.
