L99 cam results (at the track)
 

Ok so there is a debate going on another forum about how a cam on a L99 car will not net you more then a couple of tenths at the track.

This debate is about a cam only. Not a cam and stall combo, not cam and heads, etc

Is there anyone who has a L99 car with a bolt on car and 1/4 mile times then did a cam only (either LS3 conversion or VVT) and 1/4 mile times?

Check in the 1/4 list

Ive looked at the fast list and there is evidence of only a couple tenths different. But then you are comparing different cars at different tracks with different parts. Since the fast list only shows the top X fastest.

I'm looking to hear from someone who took a bolt on L99 with stall to the track then added a cam and went back. Same car, same bolt ons, etc.

:popcorn:

sent from my galaxy s3. that would explain the errors.

the advantage of a auto car is the ability to utilize a torque converter. That is where you will see your gains, a cam only stock stalled auto is a waste of money.

Is the question, whether or not a "specific cam" will only net 2 tenths??
Or "ANY CAM" will net only 2 tenths.

I would imagine under "different conditions" a small cam could possibly net only
2 tenths. If the first run being bolt ons only stock cam was done with a 250 DA, then after the Hot Cam or small blower cam he went back and it was hotter and ran at 2000DA.

IMO a cam only would net more than 2 tenths even if it were a small cam and as long as all conditions and factors are very similar. ie....60ft time, DA.

Now if you throw in a larger cam, you will gain way more than 2 tenths. The question was asked with A cam, so it's not specific?

Also it's possible to have bad results even if DA is similar if the car that is used has a trouble with spinning already. Throw in a cam and same problem! You can probably prove it right BOTH WAYS!

The question asked was someone with a bolt on car with an aftermarket converter who after the fact installed just a cam.

Example

Before: LT headers, exhaust, CAI, and stall

After: LT headers, exhaust, CAI, stall, and cam.

I'm asking because I have LT headers, catback exhaust and CAI. I just did the headers and I want to stall the car before I tune. THEN over winter do a cam.

When I stated that, i was told the difference between before and after would be only a couple tenths.

Understand the variables of DA, wheel spin, etc.

The question was not to a specific cam. If it helps I am looking at the VVT-4 or a custom rhino VVT cam.

As i stated above I plan on doing a stall before I tune for the headers. then over winter do a cam. I was told the difference in 1/4 mile times would be minimal (couple tenths) from a bolt on stalled car and a bolt on stalled + cammed car.

Ever had an aftermarket cam or converter before Steve?

I'll be by Jim's house this week, I'll try get a vid of his cam, I don't know which one he did but he's making 440 RWHP, and he probably made 370 RWHP before the swap.

Rhino went 11.3 with his old Mast cam and weight reduction on a slick... seats out, skinnies.

Add 200 lbs back in, 11.5's? I know an old shop friend Don Kinder (slowhawk) went 11.6 in his car.

Nope never had a car with aftermarket cam or converter before.

Your car is the example of before that I was talking about. Bolt on car with a stall.

When you do a cam are you going to do head work or anything else?

If you left the heads alone along with everything else and just added a cam to your car how it sits. What would you expect to pick up in the 1/4

If I did a cam I'd probably do heads too, just in my nature.

Most folks would be happy to run mid 11's with say my current combo plus h/c, I'd want to run at least 11.25 which would be trickier.

yea see that is what started the debate. Essentially what was said is that doing a cam without heads wouldn't net much gain at all on the track.

well i rest my case. I am done arguing in that other thread lol

lol there still isn't any evidence tho. I might have to be the guinea pig to try this.

lol well i will tell you where he was coming from... he took his car to speed inc to get a cam put in and tuned... he made a prediction he would run almost 1/2 a second faster after the cam. and then went to the track and he ran slower then prior to the cam.

So now every single car that does cam only is pointless basically. And all i am trying to get to is that it is not a pointless mod for everyone and it is possible to gain something from it. both numbers wise and track wise.

I think it is possible to pick up .3-.4 tenths in the quarter from a properly suited cam