l92 416 numbers
07-30-2007 | 10:29 PM
#1
l92 416 numbers my numbers are 503 whp and 470 its in a 2005 gto m6
416 11 to 1
stage 3 l92's from livernoise
cam is 248-262,639-649 on a 112
full 3 inch exhaust with 1-3/4 headers no cats
electric water pump / othr bolt ons
stock l76 / ported throtle body
i was looking for a little more power b/c of the cnc'ed heads it was tuned by jermey formato. he said the m/t drag radial rob about 15 whp is that possable??
416 11 to 1
stage 3 l92's from livernoise
cam is 248-262,639-649 on a 112
full 3 inch exhaust with 1-3/4 headers no cats
electric water pump / othr bolt ons
stock l76 / ported throtle body
i was looking for a little more power b/c of the cnc'ed heads it was tuned by jermey formato. he said the m/t drag radial rob about 15 whp is that possable??
07-30-2007 | 11:06 PM
#2
Nice power. Your cam is certainly bigger than most people have been running with L92s. It would be interesting to see your graph. Can you post it up?
__________________
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
07-31-2007 | 12:43 AM
#3
I wouldn't think that the DR would rob 15hp, but then again, I don't really know what I'm talking about.
You could probably benefit from some bigger headers too. There was a post here in the dyno section recently, where a guy with a 400+ cube LS motor, went larger with his headers, I think from a 1 3/4 to 1 7/8 and he gained quite a bit.
You could probably benefit from some bigger headers too. There was a post here in the dyno section recently, where a guy with a 400+ cube LS motor, went larger with his headers, I think from a 1 3/4 to 1 7/8 and he gained quite a bit.
07-31-2007 | 12:15 PM
#6
Sounds like the combo just isnt maximized. The L92 setup seems to love large tube headers, lots of timing and a good amount of compression. I'd like to see how some stepped 1 3/4 - 1 7/8's would do for a L92 combo. You'd think the velocity of the stepped header would be a big + for the short comings of the exhaust port of the head. I'd also venture to say that the cam is just too big. I could easily be wrong but thats just how I see it.
07-31-2007 | 12:24 PM
#7
Originally Posted by 1bigcam
my numbers are 503 whp and 470 its in a 2005 gto m6
416 11 to 1
stage 3 l92's from livernoise
cam is 248-262,639-649 on a 112
full 3 inch exhaust with 1-3/4 headers no cats
electric water pump / othr bolt ons
stock l76 / ported throtle body
i was looking for a little more power b/c of the cnc'ed heads it was tuned by jermey formato. he said the m/t drag radial rob about 15 whp is that possable??
416 11 to 1
stage 3 l92's from livernoise
cam is 248-262,639-649 on a 112
full 3 inch exhaust with 1-3/4 headers no cats
electric water pump / othr bolt ons
stock l76 / ported throtle body
i was looking for a little more power b/c of the cnc'ed heads it was tuned by jermey formato. he said the m/t drag radial rob about 15 whp is that possable??
Are these numbers through a M6 or A4?
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07-31-2007 | 04:43 PM
#11
The compression is too low for that big of a cam. I'd mill the heads for 11:5 CR (depending on the cam), run 1-7/8" Kooks or American Speed headers, then drop to a 240/248 XE-R on a 114 LSA camshaft or similar.
07-31-2007 | 05:08 PM
#12
Originally Posted by JakeFusion™
The compression is too low for that big of a cam. I'd mill the heads for 11:5 CR (depending on the cam), run 1-7/8" Kooks or American Speed headers, then drop to a 240/248 XE-R on a 114 LSA camshaft or similar.
What he said.
__________________
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
07-31-2007 | 05:45 PM
#13
Originally Posted by lilbuddy1587
Sounds like the combo just isnt maximized. The L92 setup seems to love large tube headers, lots of timing and a good amount of compression. I'd like to see how some stepped 1 3/4 - 1 7/8's would do for a L92 combo. You'd think the velocity of the stepped header would be a big + for the short comings of the exhaust port of the head. I'd also venture to say that the cam is just too big. I could easily be wrong but thats just how I see it.
07-31-2007 | 05:46 PM
#14
Originally Posted by WKMCD
I made 501/467 with a 234-240 112 +0 cam in a 403 with Stage 2 WCCH L92's, cats, heavy wheels, all belts, stock water pump and 3.90's. The car is a dream to drive.
My $.02
My $.02
07-31-2007 | 05:47 PM
#15
Originally Posted by 1bigcam
thanks for the help, what cam is other people useing that are making this kind of power ??
07-31-2007 | 05:48 PM
#16
Originally Posted by 1999vetteroo
What's the before and after on this graph from?
Last edited by WKMCD; 08-02-2007 at 12:42 PM.
07-31-2007 | 10:27 PM
#18
I just noticed I said American Speed. They make fine SBC engines (though I noticed they are doing 800HP LS7s now for the Ultima GTR... hmm). If you don't know what the Ultima GTR is... go Google it. It's pure awesome.
Anyway, I meant to say American Racing. They make fine headers.
Anyway, I meant to say American Racing. They make fine headers.
