Hmmmm.....are LS7 camshafts going to be interchangeable?
Mild Intake Duration Needed To Meet Emission And Fuel Economy
Originally Posted by Big-DEN
If intake is only 211@.05" then there is lots to gain by going to even
a 235@.05" cam.
I'm thinking the 230 is on the intake side and 211 is on exaust.
OEM does wierd splits like this, don't know exact reasons, thought it was
good for smog..
a 235@.05" cam.
I'm thinking the 230 is on the intake side and 211 is on exaust.
OEM does wierd splits like this, don't know exact reasons, thought it was
good for smog..
You are probably correct that increasing the intake duration will probably make a big power increase, but drivability and fuel economy will take a BIG drop as a compromise. The horsepower peak will be much higher in the rpm band. With 235 degrees of intake duration it would become a rough running "bucking bronco" in many drivers opinions. You and I might like it that way, but the GM brass would never approve it for the general public.
LS7 Cam Might be GREAT for LS1/LS6 Street Engines
Originally Posted by ChucksZ06
The Ls 7 cam is not that big (230/211) and the lift is increased by the 1.8 rockers therefore it will not be as desirerable a cam for smaller engines as one would think.
If I had seen these specs before I ordered my 212/218 @.558 cam, I would have bought one of these for my '05 LS2.
Last edited by gto69judge; Mar 4, 2005 at 02:50 PM.
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I hope it is 211 on the intake, it only means that there is so much more to gain.
I just don't think 211 on the intake will take 427 CI to 6200 HP peak and TQ peak of 4800.
On the 230 producing a "bucking bronco" at low speeds, rember that this is a 427 CI motor.
Every 25ci swallows about 4 degrees of cam duration. So this cam acts like a 218@.05" on a 346 motor.
I just don't think 211 on the intake will take 427 CI to 6200 HP peak and TQ peak of 4800.
On the 230 producing a "bucking bronco" at low speeds, rember that this is a 427 CI motor.
Every 25ci swallows about 4 degrees of cam duration. So this cam acts like a 218@.05" on a 346 motor.
Ls7 Camshaft Part Number? So who can come up with the part number. The Wixom engine building facility is only about 20 minutes from my home.
Do you think they would mind if I just drove over there and asked for one?
Do you think they would mind if I just drove over there and asked for one?
The reason why the engine pulls so hard to 6200 rpm and redlines above 7000 is because of the super high flowing heads. Remember, these heads flow in the 340-350cfm range. You don't need lots of duration to make big power with those kind of heads. I believe it's just a 211/230 cam. I just haven't heard what the LSA or the ICL is.
__________________
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.
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Well patrick G.
You are going to have to agree that when they swap out to the appropriate
240@.05" cams and put long tube headers on there alot of power is going to
come out of it... I think with these two alone and if an air filter
is needed you are talking about 600rwhp
You are going to have to agree that when they swap out to the appropriate
240@.05" cams and put long tube headers on there alot of power is going to
come out of it... I think with these two alone and if an air filter
is needed you are talking about 600rwhp
