Mild 427 LS7 Dyno Numbers
12-21-2006, 06:41 AM
#1
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Mild 427 LS7 Dyno Numbers Just finished up a 427 with GM LS7 top end. Nothing special about this car. It's a 2002 Z06 running Kooks LT headers through cats and stock Z06 exhaust. Cam is a 236/240/116. I designed and tuned the engine running on 91 octane fuel as this car is California bound. Total timing was 22 degrees.
Not super stellar numbers but consider the broad torque curve and stock like driveability, it's a real fun car to drive.
Mikey
Not super stellar numbers but consider the broad torque curve and stock like driveability, it's a real fun car to drive.
Mikey
Last edited by mikey; 12-21-2006 at 09:33 AM.
12-21-2006, 07:41 AM
#2
Amazing numbers for such a mild combination. Just last year, you would have needed to run a nasty cam to get such high numbers. Congrats. Can't wait to see the graph.
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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.
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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.
12-21-2006, 07:50 AM
#3
Great numbers for a cam like that. That is exactly what I am looking for!
A few questions for you:
- What brand Cats
- Was it a stock untouched LS7 intake, no porting?
- How can that cam pass emissions with so much valve overlap?
236 + 240 = 476
476 / 4 = 119
119 - 116 = 3
3 * 2 = 6 degrees of overlap
A few questions for you:
- What brand Cats
- Was it a stock untouched LS7 intake, no porting?
- How can that cam pass emissions with so much valve overlap?
236 + 240 = 476
476 / 4 = 119
119 - 116 = 3
3 * 2 = 6 degrees of overlap
12-21-2006, 09:35 AM
#4
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Originally Posted by Billiumss
Great numbers for a cam like that. That is exactly what I am looking for!
A few questions for you:
- What brand Cats
- Was it a stock untouched LS7 intake, no porting?
- How can that cam pass emissions with so much valve overlap?
236 + 240 = 476
476 / 4 = 119
119 - 116 = 3
3 * 2 = 6 degrees of overlap
A few questions for you:
- What brand Cats
- Was it a stock untouched LS7 intake, no porting?
- How can that cam pass emissions with so much valve overlap?
236 + 240 = 476
476 / 4 = 119
119 - 116 = 3
3 * 2 = 6 degrees of overlap
Kooks Cats. I think they use Magnaflow.
No porting on anything. Bolt on GM top end.
Not sure it will pass yet.
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when he hits it.
12-22-2006, 07:55 PM
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Originally Posted by Billiumss
Great numbers for a cam like that. That is exactly what I am looking for!
A few questions for you:
- What brand Cats
- Was it a stock untouched LS7 intake, no porting?
- How can that cam pass emissions with so much valve overlap?
236 + 240 = 476
476 / 4 = 119
119 - 116 = 3
3 * 2 = 6 degrees of overlap
A few questions for you:
- What brand Cats
- Was it a stock untouched LS7 intake, no porting?
- How can that cam pass emissions with so much valve overlap?
236 + 240 = 476
476 / 4 = 119
119 - 116 = 3
3 * 2 = 6 degrees of overlap
So what your telling me, is that with my cam, id have issues getting it inspected in california?
252+258= 510
510/4 = 127.5
127.5- 112 = 15.5
15.5* 2 = 31 degrees of overlap??
Is that correct?
12-22-2006, 10:17 PM
#20
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Originally Posted by chrismcdaniel
wow, i learn something new everyday!
So what your telling me, is that with my cam, id have issues getting it inspected in california?
252+258= 510
510/4 = 127.5
127.5- 112 = 15.5
15.5* 2 = 31 degrees of overlap??
Is that correct?
So what your telling me, is that with my cam, id have issues getting it inspected in california?
252+258= 510
510/4 = 127.5
127.5- 112 = 15.5
15.5* 2 = 31 degrees of overlap??
Is that correct?
