What cam
Thread Starter
Instructor
Joined: Apr 2006
Posts: 229
Likes: 1
From: Doha Qatar
What cam
I am planing to be in the range of 420-450 whp.
vararam, kooks LT, and a cam only.
if it is possible, what cam could get me in this range?
(I have an A6) is there any special modifications?
vararam, kooks LT, and a cam only.
if it is possible, what cam could get me in this range?
(I have an A6) is there any special modifications?
Safety Car
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
I am also interested in a cam-only mod.
Remember, you have to trade low-end torque to get top-end horsepower. I am sure there is a big cam that can do what you want, but it might buck and stumble at anything less than 3000 to 4000 rpm.
Look at www.cranecams.com and at www.compcams.com for some info. I BELIEVE that the LS1 cams will work in the LS2 engine, but if not, someone will correct me almost instantaneously
.
So, be careful what you wish for, you might get it.
Remember, you have to trade low-end torque to get top-end horsepower. I am sure there is a big cam that can do what you want, but it might buck and stumble at anything less than 3000 to 4000 rpm.
Look at www.cranecams.com and at www.compcams.com for some info. I BELIEVE that the LS1 cams will work in the LS2 engine, but if not, someone will correct me almost instantaneously
.So, be careful what you wish for, you might get it.
Drifting
Joined: Jul 2003
Posts: 1,796
Likes: 1
From: Annandale VA
Within reasonable limits, a bigger cam (more duration) will give you more power throughout the power range (2K to 7K RPMs). It's mostly at idle and below 2K RPMs where driveability and throttle response issues will occur. Tuning techniques have improved in recent years, so that many driveability issues of the past no longer apply.
However, you will need a computer tune.
With stock heads, there are two constraints. One is that stock heads tend to "stall out" above a certain lift, where aftermarket heads won't. If you keep the lift in the .550" to .580" range, you should be OK, and be able to use single springs. The second constraint is the size of the intake runners. Stock heads have smaller runners, which is good for velocity, but bad for max airflow. So there is a point of diminishing returns for really large cams, in that the heads will only flow so much air, and high RPM performance will suffer accordingly.
You will get a zillion different opinions on what is the "best" cam. Talk to your vendor/installer, be honest in your driving style and goals, and you will usually get good advice. 430 HP is easily attainable with a number of cams.
However, you will need a computer tune.
With stock heads, there are two constraints. One is that stock heads tend to "stall out" above a certain lift, where aftermarket heads won't. If you keep the lift in the .550" to .580" range, you should be OK, and be able to use single springs. The second constraint is the size of the intake runners. Stock heads have smaller runners, which is good for velocity, but bad for max airflow. So there is a point of diminishing returns for really large cams, in that the heads will only flow so much air, and high RPM performance will suffer accordingly.
You will get a zillion different opinions on what is the "best" cam. Talk to your vendor/installer, be honest in your driving style and goals, and you will usually get good advice. 430 HP is easily attainable with a number of cams.
Thread Starter
Instructor
Joined: Apr 2006
Posts: 229
Likes: 1
From: Doha Qatar
Thanx hitman
you always answer my quistions
thats kind
can anyone tell me about my A6
I can tune the engine but not the tranny
is it a problem?
you always answer my quistions
thats kind
can anyone tell me about my A6
I can tune the engine but not the tranny
is it a problem?
Last edited by 06corvette; Aug 25, 2006 at 12:29 PM.
Advanced
Joined: Jul 2006
Posts: 51
Likes: 0
Originally Posted by 06corvette
Thanx hitman
you always answer my quistions
thats kind
can anyone tell me about my A6
I can tune the engine but to the gear
is it a problem?
you always answer my quistions
thats kind
can anyone tell me about my A6
I can tune the engine but to the gear
is it a problem?
as far as cam goes, definitely get your heads worked over or at leat replace the springs and such. stock springs are suited only for the stock cam, and barely at that...
I'm thinking of installing the MTI G1 cam ni mine at the beginning f the year:
LS2 stock 204 211 0.525 0.525 116
MTI G1 228 232 0.588 0.575 113
Drifting
Joined: Dec 2004
Posts: 1,937
Likes: 1
From: Tempe Az
Originally Posted by c6_dave
the tranny cannot be tuned yet on the A6. a/f ratios and fan temp, etc can be tuned.
as far as cam goes, definitely get your heads worked over or at leat replace the springs and such. stock springs are suited only for the stock cam, and barely at that...
I'm thinking of installing the MTI G1 cam ni mine at the beginning f the year:
LS2 stock 204 211 0.525 0.525 116
MTI G1 228 232 0.588 0.575 113
as far as cam goes, definitely get your heads worked over or at leat replace the springs and such. stock springs are suited only for the stock cam, and barely at that...
I'm thinking of installing the MTI G1 cam ni mine at the beginning f the year:
LS2 stock 204 211 0.525 0.525 116
MTI G1 228 232 0.588 0.575 113
Dave,
Is it your DD or just a weekend car? With that LSA and duration it's going to lope like a ****
Advanced
Joined: Jul 2006
Posts: 51
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Originally Posted by BlownV6
Dave,
Is it your DD or just a weekend car? With that LSA and duration it's going to lope like a ****
Is it your DD or just a weekend car? With that LSA and duration it's going to lope like a ****
DD, tune should be able to make it pretty street friendly. It's funny, I usually get people telling me that it is too small and I should go bigger.
Drifting
Joined: Dec 2004
Posts: 1,937
Likes: 1
From: Tempe Az
Originally Posted by c6_dave
DD, tune should be able to make it pretty street friendly. It's funny, I usually get people telling me that it is too small and I should go bigger.
I'm one of those guys who likes a stealthy cam.
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Tech Contributor
Joined: Mar 2003
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Originally Posted by BlownV6
Dave,
Is it your DD or just a weekend car? With that LSA and duration it's going to lope like a ****
Is it your DD or just a weekend car? With that LSA and duration it's going to lope like a ****
Melting Slicks
Joined: Nov 2002
Posts: 3,398
Likes: 2
From: Allentown PA
I had the G1 cam with AFR 205 heads on my C5 and I do not recommend it. It did not make good power for me at all. In fact, I ran better quarter mile times with the X1 cam and no heads. The X1 cam is way underrated. It makes power from idle to redline and way more torque than the G1 and it sounds radical, which you may not like.
The Torquer 2 cam from Texas speed is a bit larger, but made good power, had better street manners and was easier to tune than the X1 or the G1.
PS, whichever cam you get you will almost certaintly need a higher stall converter.
The Torquer 2 cam from Texas speed is a bit larger, but made good power, had better street manners and was easier to tune than the X1 or the G1.
PS, whichever cam you get you will almost certaintly need a higher stall converter.
Thread Starter
Instructor
Joined: Apr 2006
Posts: 229
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From: Doha Qatar
I want to install the Torquer 2 cam (232, 234)
I can't tune the A6,
I have to get the springs, pushrods, retainers, and custom engine tune. (are these all the stuff that I need?)
or do I have to get a TC and tune the A6 as will.
I can't tune the A6,
I have to get the springs, pushrods, retainers, and custom engine tune. (are these all the stuff that I need?)
or do I have to get a TC and tune the A6 as will.
Drifting
Joined: Dec 2004
Posts: 1,937
Likes: 1
From: Tempe Az
Originally Posted by 06corvette
I want to install the Torquer 2 cam (232, 234)
I can't tune the A6,
I have to get the springs, pushrods, retainers, and custom engine tune. (are these all the stuff that I need?)
or do I have to get a TC and tune the A6 as will.
I can't tune the A6,
I have to get the springs, pushrods, retainers, and custom engine tune. (are these all the stuff that I need?)
or do I have to get a TC and tune the A6 as will.
Melting Slicks
Joined: Nov 2002
Posts: 3,398
Likes: 2
From: Allentown PA
Originally Posted by 06corvette
I want to install the Torquer 2 cam (232, 234)
I can't tune the A6,
I have to get the springs, pushrods, retainers, and custom engine tune. (are these all the stuff that I need?)
or do I have to get a TC and tune the A6 as will.
I can't tune the A6,
I have to get the springs, pushrods, retainers, and custom engine tune. (are these all the stuff that I need?)
or do I have to get a TC and tune the A6 as will.
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You will need a TC for 2 reasone, 1. your idle will have to be raised to accomodate the cam and once it is, the stock converter will stall too early, you will wear out your brakes rather quickly since the car will want to move at idle and 2. You power curve will be raised and you will want to be at higher rpms with a cam.
The torquer 2 cam will run and idle just fine until you get a tune, I drove mine around for a few weeks, but I had an mn6.
Dave
Pro
Joined: Mar 2006
Posts: 620
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CYA knows what he's talking about...hey Dave...sorry I haven't gotten in touch sooner....everything came in and looks to be in very good shape. appreciate the parts man. I got the intake in but have been working so much lately haven't had much time to do anything else.
What springs do you use? Look at that intake lift.
Racer
Joined: Jun 2006
Posts: 365
Likes: 0
From: Winter Park (Orlando) FL
definitely be concious of the biggert the cam, the more bucking you "may" get below 2000rpm...that could pose to be a much bigger headache than us with a manual trans.
Also, regarding another post by someone. I do believe AFR dual valve springs are rate up to .675 lift. which would work on the "american thunder cam" that the poster just above this post had.
Also, regarding another post by someone. I do believe AFR dual valve springs are rate up to .675 lift. which would work on the "american thunder cam" that the poster just above this post had.