Let's hear your l92/ls3 combos and rwhp numbers
11-11-2008, 06:38 PM
#42
We do quite a few forged LS7 (non stroked) street motors that come in at that 550-560 with = torque. The extra cubes are worth ~1hp/ci rough guess. We aim for 11.25 cr and use fairly mild cams with ported LS3 heads.
Cartek certainly knows their stuff. Engines, tunes, dynos and days differ so direct comparisons are speculative at best.
At the Dyno I mentioned in previous post they told straight faced I made 783 rwHP and I just laughed, wishing it were true.
Last edited by See5; 11-11-2008 at 06:54 PM.
11-11-2008, 06:47 PM
#43
Most of our cams including mine, are about like yours. Lately we have been running the same splits with high 220s/low 300s and ~610 lift with very similar results. In general the bigger # street cams don't do any better or worse, so you are in the sweet range. The heads and cams are trying to max out the intakes, with good success.
11-11-2008, 07:38 PM
#44
402 Stroker, 10.8:1 Comp.
Stock L92 Heads, Milled .025"
Stock L76 Intake, Holley 90mm TB
1 3/4 Primary Pace Setter LT's
Comp. Custom Cam: 243/247, .621(XFI)/.612(X-ER), 114+3
No Dyno Results as of yet, pulls really hard to about 6500 then starts to run out of steam. I'm going to Dyno it when the T56 goes in so I can have some accurate results.
Stock L92 Heads, Milled .025"
Stock L76 Intake, Holley 90mm TB
1 3/4 Primary Pace Setter LT's
Comp. Custom Cam: 243/247, .621(XFI)/.612(X-ER), 114+3
No Dyno Results as of yet, pulls really hard to about 6500 then starts to run out of steam. I'm going to Dyno it when the T56 goes in so I can have some accurate results.
11-11-2008, 08:31 PM
#45
402 Stroker, 10.8:1 Comp.
Stock L92 Heads, Milled .025"
Stock L76 Intake, Holley 90mm TB
1 3/4 Primary Pace Setter LT's
Comp. Custom Cam: 243/247, .621(XFI)/.612(X-ER), 114+3
No Dyno Results as of yet, pulls really hard to about 6500 then starts to run out of steam. I'm going to Dyno it when the T56 goes in so I can have some accurate results.
Stock L92 Heads, Milled .025"
Stock L76 Intake, Holley 90mm TB
1 3/4 Primary Pace Setter LT's
Comp. Custom Cam: 243/247, .621(XFI)/.612(X-ER), 114+3
No Dyno Results as of yet, pulls really hard to about 6500 then starts to run out of steam. I'm going to Dyno it when the T56 goes in so I can have some accurate results.
11-11-2008, 08:37 PM
#46
Can't get specific because last credible dyno was before several refinements but it was 542/550 rw. I would guess it would be 560/570 now.
We do quite a few forged LS7 (non stroked) street motors that come in at that 550-560 with = torque. The extra cubes are worth ~1hp/ci rough guess. We aim for 11.25 cr and use fairly mild cams with ported LS3 heads.
Cartek certainly knows their stuff. Engines, tunes, dynos and days differ so direct comparisons are speculative at best.
At the Dyno I mentioned in previous post they told straight faced I made 783 rwHP and I just laughed, wishing it were true.
We do quite a few forged LS7 (non stroked) street motors that come in at that 550-560 with = torque. The extra cubes are worth ~1hp/ci rough guess. We aim for 11.25 cr and use fairly mild cams with ported LS3 heads.
Cartek certainly knows their stuff. Engines, tunes, dynos and days differ so direct comparisons are speculative at best.
At the Dyno I mentioned in previous post they told straight faced I made 783 rwHP and I just laughed, wishing it were true.
for a 427 at 11.25 cr making that power as a street motor is impressive.
Good stuff!
11-14-2008, 08:00 AM
#47
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HKE 408 6.0 stroker
eagle forged crank
diamond pistons 11.3:1 scr
Greg Good Ported L92 Heads (over 360cfm)
cam specs 238/248 616/617
1 7/8 headers w/ true duals & x-pipe
stock crank pulley
TH400
9 inch rear end
17 inch ZR-1 wheels
Made over 475rwhp yesterday after swapping to a RPM L92 grind cam above. Previous best was 455rwhp on the same dyno in similiar conditions with a 236/236 Synergy Motorsports grind.
Graph of a comparison... not taking the best numbers of either cam:
eagle forged crank
diamond pistons 11.3:1 scr
Greg Good Ported L92 Heads (over 360cfm)
cam specs 238/248 616/617
1 7/8 headers w/ true duals & x-pipe
stock crank pulley
TH400
9 inch rear end
17 inch ZR-1 wheels
Made over 475rwhp yesterday after swapping to a RPM L92 grind cam above. Previous best was 455rwhp on the same dyno in similiar conditions with a 236/236 Synergy Motorsports grind.
Graph of a comparison... not taking the best numbers of either cam:
Last edited by WizeAss; 11-14-2008 at 10:40 AM.
11-18-2008, 09:29 PM
#48
We just finished an LS3 vette for a customer. Ported LS3 heads and a custom cam with a 230 intake duration made 505/445 on our mustang dyno. This is through a stock intake which cuts the flow of the heads by 30 cfm so we're eagerly awaiting the release of the fast intake.
10-13-2010, 08:33 AM
#52
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I am building a lsx 427, with mast l92 heads. they flowed 387 at 600. putting a beck sheetmetal intake.
callies crank
diamond pistons
callies rods
t&d shaft mounts rockers
cam was speced by virginia speed i cannot remember exactly but around 24x/25x.
compression is around 9.1
oh and f1-r is going on
i am hoping to get this put in this weekend. i cannot wait. i will let yall know what power it makes. hopefully 8-900rwhp
callies crank
diamond pistons
callies rods
t&d shaft mounts rockers
cam was speced by virginia speed i cannot remember exactly but around 24x/25x.
compression is around 9.1
oh and f1-r is going on
i am hoping to get this put in this weekend. i cannot wait. i will let yall know what power it makes. hopefully 8-900rwhp
10-13-2010, 09:30 PM
#53
10-14-2010, 09:35 PM
#54
HKE 408 6.0 stroker
eagle forged crank
diamond pistons 11.3:1 scr
Greg Good Ported L92 Heads (over 360cfm)
cam specs 238/248 616/617
1 7/8 headers w/ true duals & x-pipe
stock crank pulley
TH400
9 inch rear end
17 inch ZR-1 wheels
Made over 475rwhp yesterday after swapping to a RPM L92 grind cam above. Previous best was 455rwhp on the same dyno in similiar conditions with a 236/236 Synergy Motorsports grind.
Graph of a comparison... not taking the best numbers of either cam:
eagle forged crank
diamond pistons 11.3:1 scr
Greg Good Ported L92 Heads (over 360cfm)
cam specs 238/248 616/617
1 7/8 headers w/ true duals & x-pipe
stock crank pulley
TH400
9 inch rear end
17 inch ZR-1 wheels
Made over 475rwhp yesterday after swapping to a RPM L92 grind cam above. Previous best was 455rwhp on the same dyno in similiar conditions with a 236/236 Synergy Motorsports grind.
Graph of a comparison... not taking the best numbers of either cam:
WIZE that is an interesting graph with your tq #'s. Really nice tq.. Hope I am not entering territory I shoudn't because I run cathedral TFS 220 heads but your bottom tq is amazing and starts really low which disputes the notion L92's are a dog down low with big ports but it does not carry like one would expect. Here is my graph to compare. Peak Hp is close and you kill me in off throttle tq but above 4.5k my little cathedrals seem to have an edge (even though I am trying to figure out why I peak at only 6K)...
10-17-2010, 01:21 PM
#57
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Building a 451 LSX block
With VMaxMotorSports ported LS3 heads
Light weight valves, double springs
23x/24x cam 62x/62x lift on a 114
Morel link bar street lifters
fast 102r ported 90mm or 95mm TB, going to run them both on the dyno
60lb injectors
C5R timing chain
Going to engine dyno the motor and switch cams to a similar one on cut on a 111
Looking for 700+hp 680+tq on the motor
Going in my DD GTO
With VMaxMotorSports ported LS3 heads
Light weight valves, double springs
23x/24x cam 62x/62x lift on a 114
Morel link bar street lifters
fast 102r ported 90mm or 95mm TB, going to run them both on the dyno
60lb injectors
C5R timing chain
Going to engine dyno the motor and switch cams to a similar one on cut on a 111
Looking for 700+hp 680+tq on the motor
Going in my DD GTO
10-17-2010, 02:36 PM
#58
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LME LQ9 408 Short block 11:5:1 Comp
TSP Ls3 Stg 2.5's Milled
Texas Speed Cam
1-7/8 Hooker LT's
Custom X-pipe
Moser 12-Bolt
Built T-56
I just recently made 527/475 speed density on 93 been driving the car for two years now an it runs strong every day for me to redline. I'm about to purchase a intake manifold over the winter an try to make some more power anyway i can get it an i'm also installing a nitrous kit from one of the vendors on here for the spring time.
TSP Ls3 Stg 2.5's Milled
Texas Speed Cam
1-7/8 Hooker LT's
Custom X-pipe
Moser 12-Bolt
Built T-56
I just recently made 527/475 speed density on 93 been driving the car for two years now an it runs strong every day for me to redline. I'm about to purchase a intake manifold over the winter an try to make some more power anyway i can get it an i'm also installing a nitrous kit from one of the vendors on here for the spring time.
10-17-2010, 04:20 PM
#59
Building a 451 LSX block
With VMaxMotorSports ported LS3 heads
Light weight valves, double springs
23x/24x cam 62x/62x lift on a 114
Morel link bar street lifters
fast 102r ported 90mm or 95mm TB, going to run them both on the dyno
60lb injectors
C5R timing chain
Going to engine dyno the motor and switch cams to a similar one on cut on a 111
Looking for 700+hp 680+tq on the motor
Going in my DD GTO
With VMaxMotorSports ported LS3 heads
Light weight valves, double springs
23x/24x cam 62x/62x lift on a 114
Morel link bar street lifters
fast 102r ported 90mm or 95mm TB, going to run them both on the dyno
60lb injectors
C5R timing chain
Going to engine dyno the motor and switch cams to a similar one on cut on a 111
Looking for 700+hp 680+tq on the motor
Going in my DD GTO
Sounds like loads of fun...
Cam specs seem a little mild for that amount of hp, but i'm guessing they are OPTIMAL for L92/LS3 heads. Is that a custom grind or a shelf cam? Who had spec'd it for you, if you don't mind me asking?
Keep us posted...
10-17-2010, 04:37 PM
#60
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In a "daily driver", huh?
Sounds like loads of fun...
Cam specs seem a little mild for that amount of hp, but i'm guessing they are OPTIMAL for L92/LS3 heads. Is that a custom grind or a shelf cam? Who had spec'd it for you, if you don't mind me asking?
Keep us posted...
Sounds like loads of fun...
Cam specs seem a little mild for that amount of hp, but i'm guessing they are OPTIMAL for L92/LS3 heads. Is that a custom grind or a shelf cam? Who had spec'd it for you, if you don't mind me asking?
Keep us posted...
the heads perform good on a bench, but i think they will work great in my set up
both cams were custom spec'd
the first was one i had in my 404 LS2 with tsp L92 heads on it
never dynoed the car with that cam, had a bad experience on the dyno near me...
The second was spec'd out by the guy that did my heads
.. He thinks it will perform very good with the cam on a 111+2, using a different lob profile on this camCan't wait to finish this motor and take if for a drive....
