mild 402, M6, F-body
12-29-2008, 11:42 PM
#1
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mild 402, M6, F-body Finally got my dyno #s today
2002 pewter Z28
TSP LS2 stroker (402), -10cc pistons, Eagle crank n rods, forged pistons... 862 heads (PRC 5.3 stage 2.5) mild custom cam 238/244 113+2 LSA .613lift... compression ratio at around 11:1 to 11.1:1 ....
25%udp, Aluminum FW n LS7 clutch, T-56 rebuilt by me, Moser 12 bolt 3.73 Trutrac...
1 3/4 LT, ORY, magnaflow bullet and Magnaflow CATBACK...
FAST 92 unnported, SLP lid, PTM T/B...
UMI tubular suspension...
Made 493RWHP @ 6250RPM and 468 RWTQ.. around 4700RPMs...
2002 pewter Z28
TSP LS2 stroker (402), -10cc pistons, Eagle crank n rods, forged pistons... 862 heads (PRC 5.3 stage 2.5) mild custom cam 238/244 113+2 LSA .613lift... compression ratio at around 11:1 to 11.1:1 ....
25%udp, Aluminum FW n LS7 clutch, T-56 rebuilt by me, Moser 12 bolt 3.73 Trutrac...
1 3/4 LT, ORY, magnaflow bullet and Magnaflow CATBACK...
FAST 92 unnported, SLP lid, PTM T/B...
UMI tubular suspension...
Made 493RWHP @ 6250RPM and 468 RWTQ.. around 4700RPMs...
12-30-2008, 08:46 AM
#5
That's what I'm talking about! Very nice numbers. No ugly dips down low and no drop offs at high rpm. Just think, if you were running a lighter clutch, a 10 bolt and 1 7/8" headers, you'd probably dyno 25-30 rwhp higher than you are now. Keep that in mind when comparing to other combos. That's a very stout combo, especially for what probably has very good street manners.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
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2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
12-30-2008, 09:25 AM
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Congrats bro. I have to echo Pat G's comments. Your strong numbers with a heavy driveline should be a good measure for my 402 that is coming to completion. I got a cf drive shaft, exedy twin, dte stg III with 3.42's, A LOT MORE DYNO FRIENDLY then your drive line. Either way though thanks for posting the results and it gives me more hope that my combo will make big power when its done. I hope my 11.4 : 1 compression helps my torque numbers too, but I am totally drooling on your setup because its done and STOUT.
12-30-2008, 09:25 AM
#7
Nice results! The torque curve is pretty nice! 
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12-30-2008, 12:29 PM
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good numbers!! I have those same heads,and often wondered if I should switch them when I go to a 402..I'm just gonna use them like you..Thanks soooo much for posting!!!
12-30-2008, 10:51 PM
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Thanks to Patrick G for specifying that cam for me and thanks Shant(suck my SS) for diagnosing a million of my cars issues and helping me with the build tremendously...
12-30-2008, 10:59 PM
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In a couple of months I am planning on porting my FAST 92, getting a larger lid and getting 1 7/8 headers... Then we will see...
until then I need to race this car to see what track numbers Im gonna put down(but before I must deal with my sinking clutch pedal)
edit: Oh and this is with Harland Sharp Rocker rebuilds
until then I need to race this car to see what track numbers Im gonna put down(but before I must deal with my sinking clutch pedal)
edit: Oh and this is with Harland Sharp Rocker rebuilds
12-30-2008, 11:37 PM
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congrats, man!!
nice numbers, and graph!!!
i am planning on going with a similar setup. cam is pretty close to yours. maybe 12.0:1 SCR. so, it is nice to see you can get nice numbers, and have a very streetable vehicle.
your thoughts on how it feels?
thanks, and congrats!!!
nice numbers, and graph!!!
i am planning on going with a similar setup. cam is pretty close to yours. maybe 12.0:1 SCR. so, it is nice to see you can get nice numbers, and have a very streetable vehicle.
your thoughts on how it feels?
thanks, and congrats!!!
12-30-2008, 11:55 PM
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The car feels very good, it has minor idling issues.. and on downhill when I brake and press clutch sometimes the car would die, but now its better.. But the car feels excellent, I cant really shift through gears, but I made a 2nd gear pull 3k-6500rpm, 3rd gear and 4th gear pull... Boy does it pull hard in any of those gears! Great torque, throttle response is great and the torque is just exellent at all RPMs above 1400...
12-31-2008, 11:46 AM
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DAMN....nice torque!!
for some reason i thought the 5.3L heads didn't work well on the 402+ engines due to bore size.
i can't imagine what that setup would do with better heads...like some TFS 235s
let alone better heads, ported intake, bigger headers, and TDs
for some reason i thought the 5.3L heads didn't work well on the 402+ engines due to bore size.
i can't imagine what that setup would do with better heads...like some TFS 235s
let alone better heads, ported intake, bigger headers, and TDs
