SB2 LT1 - Chassis Dyno #'s
06-29-2007, 11:21 AM
#1
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Thread Starter
Join Date: May 1999
Location: Reading, Pa
Posts: 521
SB2 LT1 - Chassis Dyno #'s
For those who have not been following, the motor is a 396" LT1 with Nextel Cup SB2.2 heads and intake, DFI GEN 7 and a NX direct port system.
After some bearing issues it finally made the smoke we were looking for.
All numbers through a GForce T56 and a 12 bolt:
626 RWHP on motor
853 RWHP on a 200 shot
The nitrous run was very conservative and has more tuning in it as it is a touch on the fat side.
Off to the track next week
After some bearing issues it finally made the smoke we were looking for.
All numbers through a GForce T56 and a 12 bolt:
626 RWHP on motor
853 RWHP on a 200 shot
The nitrous run was very conservative and has more tuning in it as it is a touch on the fat side.
Off to the track next week
06-29-2007, 01:37 PM
#5
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Join Date: Oct 2005
Location: Bakersfield
Posts: 685
Aren't there lots of other guys running 9s or better with 12 bolts? I thought the only weakness to the 12 bolt was the Eaton Posi most of them come with. Those numers are SICK. I wish I had the funds to do a 427 SBC with those heads along with high compression and a massive solid roller.
06-29-2007, 01:44 PM
#7
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Join Date: Nov 2004
Location: Raleigh, NC
Posts: 1,375
Aren't there lots of other guys running 9s or better with 12 bolts? I thought the only weakness to the 12 bolt was the Eaton Posi most of them come with. Those numers are SICK. I wish I had the funds to do a 427 SBC with those heads along with high compression and a massive solid roller.
06-29-2007, 04:57 PM
#8
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Thread Starter
Join Date: May 1999
Location: Reading, Pa
Posts: 521
We ditched the Eaton and put in a locker.
Going with a bigger bore with these heads would really wake them up. We did it with 4.030" bore and a small plenum restrictor plate intake and didn't port the heads. It might be closer to 700 rwhp N/A with the right setup.
Thanks for all the kind words.
Going with a bigger bore with these heads would really wake them up. We did it with 4.030" bore and a small plenum restrictor plate intake and didn't port the heads. It might be closer to 700 rwhp N/A with the right setup.
Thanks for all the kind words.
