LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Hot Cam Dyno....

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Old 06-08-2011, 04:38 PM
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Originally Posted by GREGG 97Z
Those numbers don't sound bad for this cam and especially through a high stall a4. Trying to get mine dyno'd again in the next few weeks, biggest change since #s below were the lid and porting heads. I'm also running midlength headers. I really don't care if I'd pick up another 5hp or so with LT's. These are a high quality coated ss headers that look and fit great with no issues.
What's up Gregg, glad you checked in. I'm on the same journey as you. Maybe that 5 extra hp/tq can get us in the 11's... Or maybe a cutout might help... I guess if I was M6 we would make similar numbers. My torque was a little less than 350 like 349.xx I just rounded it off...

Last edited by NewOrleansLT1; 06-08-2011 at 04:45 PM.
Old 06-08-2011, 04:59 PM
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I have a cutout I can bolt in in place of my orp/bullet section, just havnt used it for a while. Going to get some skinnies for added inurance too . If my last run would have been in some good fall weather I would have got there anyway I'm sure. Well see who gets there first
Old 06-08-2011, 05:07 PM
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Originally Posted by GREGG 97Z
I have a cutout I can bolt in in place of my orp/bullet section, just havnt used it for a while. Going to get some skinnies for added inurance too . If my last run would have been in some good fall weather I would have got there anyway I'm sure. Well see who gets there first
I just might do a cutout and scratch the LONG TUBE idea. Do you think I might gain some? At what RPM did your TQ peak?
Old 06-08-2011, 05:10 PM
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Originally Posted by NewOrleansLT1
lol I also have AFR 180cc heads. Unless your saying the AFR's are no better than stock...
Your cam is a bit small for non stock heads... Your heads would be more useful with a bigger cam.
Old 06-08-2011, 05:15 PM
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Don't get too hung up on dyno numbers, see what it runs at the track. Make sure the engine is running in perfect order as well.

My old setup was some local crappy ported heads, CC305 cam, long tube and typical bolt-ons through a 4L60E and an EDGE 3400 stall. The car would run consistent 12.3Xs at 110mph but only put down 290 RWHP on a mustang dyno. The dyno operator said loose stalls/auto are good at eating up HP on a dyno. The same day a cam and bolt-on LT1 6-speed car put down 340rwhp but couldn't crack a 12 second run and was trapping a little less than me. This was also in the middle of July in Iowa where you can see the humidity in the air.
Old 06-08-2011, 05:39 PM
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Originally Posted by 97pontta
Don't get too hung up on dyno numbers, see what it runs at the track. Make sure the engine is running in perfect order as well.

My old setup was some local crappy ported heads, CC305 cam, long tube and typical bolt-ons through a 4L60E and an EDGE 3400 stall. The car would run consistent 12.3Xs at 110mph but only put down 290 RWHP on a mustang dyno. The dyno operator said loose stalls/auto are good at eating up HP on a dyno. The same day a cam and bolt-on LT1 6-speed car put down 340rwhp but couldn't crack a 12 second run and was trapping a little less than me. This was also in the middle of July in Iowa where you can see the humidity in the air.
Now thats some good motivation
Old 06-08-2011, 05:43 PM
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Originally Posted by 00FlowCamaro
Your cam is a bit small for non stock heads... Your heads would be more useful with a bigger cam.
I have 1.7rr so my lift is at .550"+... I think I'm right in the sweet spot for these heads... Unless your talking about the duration?
Old 06-08-2011, 05:47 PM
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You put a car on a 228r cam only car? With similar mods? Was it a stick? Cause your cam is smaller than that and I don't see it unless driver couldn't drive or had less supporting mods/no tune etc. Not calling you a liar but he should have got you by half a car to a car.
Old 06-08-2011, 06:11 PM
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Originally Posted by projectX
You put a car on a 228r cam only car? With similar mods? Was it a stick? Cause your cam is smaller than that and I don't see it unless driver couldn't drive or had less supporting mods/no tune etc. Not calling you a liar but he should have got you by half a car to a car.
He had 228r cam, Pacesetter LONG TUBES, lid, 3500 stall, tune, and 2.73 gears... Yep I put a car on him...
Old 06-08-2011, 06:54 PM
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Originally Posted by NewOrleansLT1
I just might do a cutout and scratch the LONG TUBE idea. Do you think I might gain some? At what RPM did your TQ peak?
I had a cutout in on my last dyno run, that was a few years back though. I dont have a copy of my last run but I recall HP peaked around 61-6200, not sure where the tq was at. Depending on how good your exhaust is you may see a gain. I know they are a big gain with stock exhaust, not sure how good it is with the borla.
Old 06-08-2011, 07:06 PM
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Originally Posted by GREGG 97Z
I had a cutout in on my last dyno run, that was a few years back though. I dont have a copy of my last run but I recall HP peaked around 61-6200, not sure where the tq was at. Depending on how good your exhaust is you may see a gain. I know they are a big gain with stock exhaust, not sure how good it is with the borla.
Where did you place your cutout?
Old 06-08-2011, 07:10 PM
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Those numbers seem typical for a hotcam, shorty header, 100-degree dyno day with heads that aren't THAT much better than stock. See what she runs at the track.
Old 06-08-2011, 07:22 PM
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Originally Posted by NewOrleansLT1
Where did you place your cutout?
Right after the Y, where the cat would go. I have a flange there and normaly run a bullet muffler but have a cutout that can bolt there too. Also have a single cat that goes there but havent used it in years since I dont have emissions testing anymore
Old 06-08-2011, 07:40 PM
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Originally Posted by 97pontta
Don't get too hung up on dyno numbers, see what it runs at the track. Make sure the engine is running in perfect order as well.

My old setup was some local crappy ported heads, CC305 cam, long tube and typical bolt-ons through a 4L60E and an EDGE 3400 stall. The car would run consistent 12.3Xs at 110mph but only put down 290 RWHP on a mustang dyno. The dyno operator said loose stalls/auto are good at eating up HP on a dyno. The same day a cam and bolt-on LT1 6-speed car put down 340rwhp but couldn't crack a 12 second run and was trapping a little less than me. This was also in the middle of July in Iowa where you can see the humidity in the air.
THats wat i was gettin out with the stall ?s. My bolton lt1 car trapped 108 and only put down 270 wheel.
Old 06-08-2011, 08:02 PM
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A bigger cam than the hot cam would def give you a bump.

I had a cc503 with my AFR 180cc comp ports. I replaced it with a custom grind 230/236 and gained 26rwhp and 18rwtq.
Old 06-08-2011, 08:24 PM
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Originally Posted by Fly on the wall
A bigger cam than the hot cam would def give you a bump.

I had a cc503 with my AFR 180cc comp ports. I replaced it with a custom grind 230/236 and gained 26rwhp and 18rwtq.
Are you talking about the Comp Cam 230/236?
Old 06-08-2011, 08:26 PM
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Originally Posted by TravisMcGill2000
THats wat i was gettin out with the stall ?s. My bolton lt1 car trapped 108 and only put down 270 wheel.
Whats your race weight?
Old 06-08-2011, 08:32 PM
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Originally Posted by RamAir95TA
Those numbers seem typical for a hotcam, shorty header, 100-degree dyno day with heads that aren't THAT much better than stock. See what she runs at the track.
I'm gonna run her at the track, but do you think LONG TUBES are gonna help a lot? Or a little? Or should I just do a cut-out? I want your opinion...
Old 06-08-2011, 08:35 PM
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Of course they will help, but right now they are NOT the weak point of your build.
Old 06-08-2011, 08:52 PM
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Well, nice job then for sure man!


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