New custom Comp Cam dyno results...
Thread Starter
Staging Lane
Joined: Jul 2006
Posts: 65
Likes: 0
From: Corpus Christi, Texas
New custom Comp Cam dyno results... Finally, after many months have the cam in and dynoed. I had started with wanting a stealth cam, for stock like idle and good low end torque. Then as I searched wanted something bigger and was looking at the Singer, G5X3, VRX-5 and the Cartek 3X cam. I was able to hear and see this cam run in a local C5Z and liked what I saw so I went for it. Knew I would have to sacrifice some tq/hp down low for the top end. The cam specs (off the card):
230/236 .613/.608 113lsa on XFI lobes
I can somewhat feel the loss of some low end torque but the car revs quicker and above 5000rpm, it just screams. I opted not to bump the compression ratio which probably would have made up for some of the low end loss. Next year when I get heads, I'll bump the cr. It has a nice lope at idle (900rpm), drives great in all gears. I put it throught the ringer coming home, driving at low rpm in 5th and 6th, accelerating from those gears, etc. No bucking, no surging, great drivability. The car does shake a bit at idle though
Mods are as follows: Vararam, non-ported FAST, u/d pulley, Harland Sharp 1.7" rockers, Kooks 1 3/4" long-tubes, x-pipes with cat, Corsa cat-back, custom tune.
Remember, the new cam replaced the stock cam with SLP 1.85 rockers which were good for 8-12rwhp/tq down low. New dyno numbers:
A comparison from my last dyno run with the 1.85 rockers.
BTW, thanks to John02SS of XXX Motorsport for all the work.
230/236 .613/.608 113lsa on XFI lobes
I can somewhat feel the loss of some low end torque but the car revs quicker and above 5000rpm, it just screams. I opted not to bump the compression ratio which probably would have made up for some of the low end loss. Next year when I get heads, I'll bump the cr. It has a nice lope at idle (900rpm), drives great in all gears. I put it throught the ringer coming home, driving at low rpm in 5th and 6th, accelerating from those gears, etc. No bucking, no surging, great drivability. The car does shake a bit at idle though
Mods are as follows: Vararam, non-ported FAST, u/d pulley, Harland Sharp 1.7" rockers, Kooks 1 3/4" long-tubes, x-pipes with cat, Corsa cat-back, custom tune.
Remember, the new cam replaced the stock cam with SLP 1.85 rockers which were good for 8-12rwhp/tq down low. New dyno numbers:
A comparison from my last dyno run with the 1.85 rockers.
BTW, thanks to John02SS of XXX Motorsport for all the work.
Last edited by bunk22; Sep 9, 2008 at 09:01 PM.
Nice numbers. That's a beautiful torque curve.
__________________
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.
Finally, after many months have the cam in and dynoed. I had started with wanting a stealth cam, for stock like idle and good low end torque. Then as I searched wanted something bigger and was looking at the Singer, G5X3, VRX-5 and the Cartek 3X cam. I was able to hear and see this cam run in a local C5Z and liked what I saw so I went for it. Knew I would have to sacrifice some tq/hp down low for the top end. The cam specs (off the card):
230/236 .613/.608 113lsa on XFI lobes
I can somewhat feel the loss of some low end torque but the car revs quicker and above 5000rpm, it just screams. I opted not to bump the compression ratio which probably would have made up for some of the low end loss. Next year when I get heads, I'll bump the cr. It has a nice lope at idle (900rpm), drives great in all gears. I put it throught the ringer coming home, driving at low rpm in 5th and 6th, accelerating from those gears, etc. No bucking, no surging, great drivability. The car does shake a bit at idle though
Mods are as follows: Vararam, non-ported FAST, u/d pulley, Harland Sharp 1.7" rockers, Kooks 1 3/4" long-tubes, x-pipes with cat, Corsa cat-back, custom tune.
Remember, the new cam replaced the stock cam with SLP 1.85 rockers which were good for 8-12rwhp/tq down low. New dyno numbers:
A comparison from my last dyno run with the 1.85 rockers.
BTW, thanks to John02SS of XXX Motorsport for all the work.
230/236 .613/.608 113lsa on XFI lobes
I can somewhat feel the loss of some low end torque but the car revs quicker and above 5000rpm, it just screams. I opted not to bump the compression ratio which probably would have made up for some of the low end loss. Next year when I get heads, I'll bump the cr. It has a nice lope at idle (900rpm), drives great in all gears. I put it throught the ringer coming home, driving at low rpm in 5th and 6th, accelerating from those gears, etc. No bucking, no surging, great drivability. The car does shake a bit at idle though
Mods are as follows: Vararam, non-ported FAST, u/d pulley, Harland Sharp 1.7" rockers, Kooks 1 3/4" long-tubes, x-pipes with cat, Corsa cat-back, custom tune.
Remember, the new cam replaced the stock cam with SLP 1.85 rockers which were good for 8-12rwhp/tq down low. New dyno numbers:
A comparison from my last dyno run with the 1.85 rockers.
BTW, thanks to John02SS of XXX Motorsport for all the work.
great numbers. these numbers are with stock LS6 heads? correct?
how about if you install touched up TFS 215 heads.
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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
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.
TECH Senior Member
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Joined: Apr 2006
Posts: 6,524
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From: Western Burbs of Detroit
Someone please correct me if I am wrong but .....
The original cam had a very nice curve with great AVG power.
The new cam seems to make identical power until 5800 rpms and then it jumps, but the torque takes a nose dive???
How much time do you plan to be at 5800+ rpms to feel the extra power you picked up ??
Not knocking your cam choice, I just don't understand the point of the switch unless you are content with waiting to bump the compression up like you said with a good set of milled heads. Once you bump the compression I bet that cam will lay down some improved numbers.
The original cam had a very nice curve with great AVG power.
The new cam seems to make identical power until 5800 rpms and then it jumps, but the torque takes a nose dive???
How much time do you plan to be at 5800+ rpms to feel the extra power you picked up ??
Not knocking your cam choice, I just don't understand the point of the switch unless you are content with waiting to bump the compression up like you said with a good set of milled heads. Once you bump the compression I bet that cam will lay down some improved numbers.
TECH Senior Member
iTrader: (3)
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
As the setup is, I don't see the logic behind the cam swap. You lost power down low, and didn't gain any power until 5200 and that was insignificant, then the power takes off at 5800 ??? Sorry just doensn't make sense considering your previous cam did the same thing withouth the big jump up top, and made more low end tq.
