Low end cam?

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May 2, 2004 | 10:21 PM

fmpros

Thread Starter

Racer

Joined: Aug 2003

Posts: 461

Likes: 0

From: New Braunfels TX

Low end cam?

I notice that users reporting results of aftermarket cams all have great power increases but in the upper range. I don't drag race but would like more kick in the low and mid range. Is there a cam designed for such a thing?

[Modified by fmpros, 9:22 PM 5/2/2004]

May 2, 2004 | 10:32 PM

TrackAttack!

Pro

Joined: Mar 2002

Posts: 613

Likes: 0

From: MO

St. Jude Contributor

Re: Low end cam? (fmpros)

Sounds like a rear end gear change might be the better option for you. Just a thought...

May 3, 2004 | 07:46 AM

HITMAN99

Drifting

Joined: Jul 2003

Posts: 1,796

Likes: 1

From: Annandale VA

Re: Low end cam? (fmpros)

Depends what you mean by low end. Most of those cams that show big top-end gains also pick up extra TQ from 2500 & up. It's below 2K RPMs where the power can lag. The simplest solution is to advance the cam. Most aftermarket grinds already come advanced two degrees, and on a bigger cam, another two degrees helps even more. What that does is open the intake valve a little earlier, helping low-end TQ and throttle response.

Comp Cams and others make an adjustable timing chain kit that will allow you to change the cam timing up to four degrees, without having to remove the cam.

Another approach that some use is to go with a narrower LSA. IMHO, this will improve the mid-range, but have little effect on low-end TQ. It will also make the idle a lot rougher, which some guys seem to like.

May 3, 2004 | 12:55 PM

Mr. Jones

Drifting

Joined: Oct 2002

Posts: 1,335

Likes: 76

From: Bedford Va.

Re: Low end cam? (HITMAN99)

try the stock Z06 cam. Talk to a tuner about this cam it produces good torque.
I would go with gears instead of the cam, best money spent.
quick mod, good results and you didn't even open the motor.
3.73 with the auto will give it a nice low end feel.

May 3, 2004 | 03:55 PM

Goody

Le Mans Master

Joined: Oct 2000

Posts: 6,362

Likes: 30

From: Oak Harbor WA

Re: Low end cam? (fmpros)

I'd recommend newer gears as well. Best bang for buck I ever spent on my last A4 equipped Corvette. That was a C4, but the effect should be the same.

May 3, 2004 | 05:51 PM

Mirek

Burning Brakes

Joined: Nov 1999

Posts: 901

Likes: 83

From: Los Angeles

Re: Low end cam? (Goody)

224 on down should make you happy.

May 3, 2004 | 09:28 PM

FNFAST

Instructor

Joined: Sep 2003

Posts: 130

Likes: 1

From: Florida Treasure Coast

Re: Low end cam? (Mirek)

Gears, Gears, Gears!!! And a TC if it's an A4. That'll take care of the low end. A cam and headers will take care of the top end... assuming you have an intake and exhaust. Of course then you'll need new wheels and tires to get traction... :D :D

May 4, 2004 | 12:31 AM

Gray Ghost GS

"AlohaC5" Senior Member

Joined: Jun 2003

Posts: 3,562

Likes: 44

From: Madison, AL

Re: Low end cam? (Mirek)

:iagree: Cam (For optimum torque in the low to mid-range on stock LS1 heads choose one with less duration than a 224) or Gears (3.73).

I recently did a cam only install - using the CompCams 220/220 .564/.564 114 from TSP, which gave me incredible RWTQ (376) with my stock LS1 heads! In fact my tuner wants me to return this Friday because he thinks he can pull more hp and tq out of her with a "conservative" tune.

Idles like stock and less expensive to buy/install than gears. However, now that I've got the cam I plan to get 3.90s later this year.

[Modified by AlohaC5, 7:34 PM 5/3/2004]