Mild 427 LS7 Dyno Numbers
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?
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
You use advertised duration not .050 #'s to calculate overlap. Cams have a hell of alot more overlap than 6 degrees. my 222/230 112lsa cam is 284/292 adv. duration with a 112 lsa and it has 64 degrees of overlap.
Originally Posted by speed_demon24
You use advertised duration not .050 #'s to calculate overlap. Cams have a hell of alot more overlap than 6 degrees. my 222/230 112lsa cam is 284/292 adv. duration with a 112 lsa and it has 64 degrees of overlap.
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awesome setup. i wonder what ported heads(even though stock LS7's flow amazing already) and a monster cam would put down, of course driveability wouldnt matter to me, lol,
Thread Starter
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From: Reading, PA
Originally Posted by CHRISPY
What would it cost to replicate that package in an f-body Mikey? (Provided you have the exhaust already done)
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Joined: Apr 2007
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Originally Posted by SSilverSSurfer
awesome setup. i wonder what ported heads(even though stock LS7's flow amazing already) and a monster cam would put down, of course driveability wouldnt matter to me, lol,
I will post numbers when mine is done. The prototype motor had a curve very similar to the thread starter's posted dyno chart... just much nearer the top of the graph paper
The key components are "ported heads" and "monster cam"
(Not super stellar numbers) 
Great numbers Mikey
Small cam ,Low comprestion ,Through Cats and stock Exhaust WOW Man very nice.
I bet the car drives like stock
that one fast daily driven car.
Great numbers Mikey
Small cam ,Low comprestion ,Through Cats and stock Exhaust WOW Man very nice.
I bet the car drives like stock
that one fast daily driven car. 
Originally Posted by SSilverSSurfer
awesome setup. i wonder what ported heads(even though stock LS7's flow amazing already) and a monster cam would put down, of course driveability wouldnt matter to me, lol,
