FM11 and LS6 GMPP heads
04-07-2005, 11:19 PM
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FM11 and LS6 GMPP heads Dynoed my car tonight. We put the tune in it out of the cam only car that made 390 rwhp in it last Friday. It's running rich as hell and problably needs a degree of timing taken from it due to 11:1 compression. The setup consist of a 39,000 mile shortblock, GMPP LS6 heads 60.7 cc, FM11, LS6 intake, Shaner S2 T.B., ASP underdrive pulley, 12 bolt with 4:10 gears, and 18 X 10.5 Motorsport Z06 wheels. The car pulled 437/407 with no dyno tricks. We are going to do a wideband tune and see what she does. Also we will be adding a TNT F2 kit and try a 150-200 h.p. shot.
I love my F11. 
04-08-2005, 07:26 AM
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Originally Posted by INVISIBLEZ
Dynoed my car tonight. We put the tune in it out of the cam only car that made 390 rwhp in it last Friday. It's running rich as hell and problably needs a degree of timing taken from it due to 11:1 compression. The setup consist of a 39,000 mile shortblock, GMPP LS6 heads 60.7 cc, FM11, LS6 intake, Shaner S2 T.B., ASP underdrive pulley, 12 bolt with 4:10 gears, and 18 X 10.5 Motorsport Z06 wheels. The car pulled 437/407 with no dyno tricks. We are going to do a wideband tune and see what she does. Also we will be adding a TNT F2 kit and try a 150-200 h.p. shot.
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04-08-2005, 08:04 AM
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People don't realize these are some good heads. Just as Jeff said there was nothing done to the heads but bolted on. I'm problably gonna end up selling this cam and going with the FM13. I am trying to pull all I can for the setup I have.
04-08-2005, 08:05 AM
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Originally Posted by cyclerage
Did you guys get that cam to fit without flycutting?
I can't wait until I have enough money to get Futral to tune mine.
04-08-2005, 10:12 AM
#10
Originally Posted by jamnut
No problems here. It fits just fine & I'm running milled heads too.
I can't wait until I have enough money to get Futral to tune mine.
I can't wait until I have enough money to get Futral to tune mine.
Nice Number BTW!
04-08-2005, 11:02 AM
#11
Originally Posted by INVISIBLEZ
People don't realize these are some good heads. Just as Jeff said there was nothing done to the heads but bolted on. I'm problably gonna end up selling this cam and going with the FM13. I am trying to pull all I can for the setup I have.
I'd bet the F13 will be very tight with those milled heads though. Mine is fairly tight on unmilled heads and it's a 113+2. A 114lsa with 2 deg. advance might clear though. Doubt the 112+4 would clear.
04-08-2005, 02:25 PM
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Originally Posted by 1fastWS6
Nice numbers....
I'd bet the F13 will be very tight with those milled heads though. Mine is fairly tight on unmilled heads and it's a 113+2. A 114lsa with 2 deg. advance might clear though. Doubt the 112+4 would clear.
I'd bet the F13 will be very tight with those milled heads though. Mine is fairly tight on unmilled heads and it's a 113+2. A 114lsa with 2 deg. advance might clear though. Doubt the 112+4 would clear.
04-08-2005, 03:51 PM
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Originally Posted by INVISIBLEZ
Dynoed my car tonight. We put the tune in it out of the cam only car that made 390 rwhp in it last Friday. It's running rich as hell and problably needs a degree of timing taken from it due to 11:1 compression. The setup consist of a 39,000 mile shortblock, GMPP LS6 heads 60.7 cc, FM11, LS6 intake, Shaner S2 T.B., ASP underdrive pulley, 12 bolt with 4:10 gears, and 18 X 10.5 Motorsport Z06 wheels. The car pulled 437/407 with no dyno tricks. We are going to do a wideband tune and see what she does. Also we will be adding a TNT F2 kit and try a 150-200 h.p. shot.
Brandon
04-08-2005, 09:57 PM
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Originally Posted by xfactor_pitbulls
Great numbers Mike I bet its alot of fun and very driveable as well with that cam. I think my guess was 440whp so I was pretty close. Nice time at the track first time out.
Brandon
Brandon
PDD, thanks for the compliment, it's now time to take it to the next level.
04-09-2005, 07:12 PM
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IMO, the GMMP heads are outstanding heads that don't get enough credit. I rode in a car, M6, that had those heads and the ASA cam (great match), and it had the most low end power of any h/c car I've been in or driven. Killer mid and top range, too.
04-10-2005, 01:51 AM
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Those heads are badass... I had the unmilled 70cc version of the #243 LS6 GMPP heads from Scoggin Dickey.. I put them on a 6.0 LQ9 and gained 40hp over the stock #317 heads.. Had the TSP 228R. It made 408/408 unlocked through an A4 3.73s and stall.. 425hp locked SAE corrected and 441hp Actual.. I've had all sorts of LSx heads.. Those GMPP heads were the best..
