echelonphoto

Hi....new to forum. I just bought a 2009 corvette ls3 manual coupe...the car has a vengeance racing cam kit KaotiK camshaft specifications are 235/243 .621/.624 113 LSA.

Also has pfadt headers , no cats, vararam. Makes about 500 hp to the wheels
I really like the car and have had a very good street tune...but the smell is getting to be too much for a DD and also...the cam is hard to drive in traffic...you really can't let the revs go below 1500 rpm...gets lousy gas mileage compared to my stock 02 ZO6. I would like to change out the cam to something milder and add cats...hoping this will control the smell somewhat and give me more mid range driveability....any recommendations? I would assume I keep the heavy duty valve springs and pushrods.

KW Baraka

iTrader: (7)

Cam Motion, Brian Tooley Racing, Patrick Guerra, Tick Performance.

All can spec you a milder cam (10* overlap or less) that will give you close to the power you have now, but will improve your drivability, improve your gas mileage, and lessen your exhaust stink......with or without cats.

My '95 Impala puts down 450HP with a Lingenfelter GT1-1 cam (about 7* overlap)....and I have a 4L60E (auto) trans, what are essentially shorty headers and cats. Nice strong lope, no exhaust stink, and no surging or stalling out.

All four of the above entities in the first line can be found via a Google search, or a search on this forum.

Best of luck!

KW

Jimbo1367

I second all 4 mentioned above

echelonphoto

Thanks

How is this choice?

223/231 .360/.350 112+0

G Atsma

The lift is at the cam? Hope so....

echelonphoto

Would imagine so, it is a cam motion cam

NAVYBLUE210

i like those specs and Cam Motion (.612"/.595") @ valve.
with that cam and cats you will be very happy.

I would probably go LSA 114*+3* but thats just me.

JakeFusion

iTrader: (7)

I'd do something like this from Cam Motion:

http://store.cammotion.com/catalog/p...da57449a024668

And then add high-flow cats. Won't lose much power. Will drive better and smell much better.

echelonphoto

Hi Navy blue....so 114...that's a little more overlap....I do have the base gearing...so pretty tall, but with the weight of the car, shouldn't be problem...I do want to be able to lug the car a little at around 1500 rpm which means I can do 30mph in 3rd. This car now gets to about 85 in third by redline.

NAVYBLUE210

^^^^^^^^^^
Agreed with Jake, even better!

NAVYBLUE210

Actually 114* Vs 112* LSA would be LESS Overlap!

99 Black Bird T/A

iTrader: (4)

Two other cams for consideration...

Spartan Performance has a 224/234 .630/.630 115 camshaft on their own lobes that produces 460-470rwhp in a stock headed car and 490+rwhp with CNC'd heads. The driveability with tuning is said to be fantastic. 40mph in 6th gear @ 1300-1400 rpms is no problem, zero buck in parking lots, etc. These are also very smooth lobes with a nice smooth transition on/off the valve seat.

Lingenfelter's GT1-2 cam, 227/235 duration @ .050 lift - .614/.621 lift with 1.7 rocker 115 CL Great Muscle Car Sound

Extensive engine dyno testing at Lingenfelter has produced some of the best street camshaft profiles available for the LS1, LS2, LS3, LS6 engines. The Lingenfelter "GT12" camshaft was designed to produce excellent power and will give your car an aggressive muscle car idle while still offering street manners. The GT12 can be used in a automatic or six speed manual transmission equipped vehicles that are daily driven.

This cam also works well with forced induction if you were to decide to add that later on.

echelonphoto

Pardon my ignorance is 1.7 the stock rocker arm ratio. The springs and rods in my car are the ones supplied by vengeance in their kit...will they work with these suggested cams or do I have to change them.

CAMMOTION PERF

echelonphoto, we have solutions!

We have one camshaft that we made for people who wanted stock drivability and no fuel smell. The owner of our company has this camshaft in his daily driver. He and all of the customers who have it absolutely love it. It is our Torque Titan:
http://store.cammotion.com/torque-titan-ls-camshaft
This camshaft will not make hero dyno numbers, but it does make better than stock power from idle to redline and will restore your driving pleasure.

If you wanted a little more power and RPM capability, we could make a you a custom grind of 220/228 on 118+4 with about .620" lift. This camshaft would have the same great drivability, but trade a little low end torque for upper RPM performance.

Let me know if you want me to make you something to bring the pleasure back to your car.

~Steven

G Atsma

Steven- About how much more power would an LS3 gain with the Torque Titan ONLY? I notice the durations of it and The GM "Hot Cam" are within a degree or two, but with a bunch more lift and a lot less overlap. Looks like a great cam!

CAMMOTION PERF

The Torque Titan is no dyno hero. That is not what it is about. It will make about 20-25 peak horsepower more than stock while giving up nothing down low. It will also broaden the power peak giving you more power under the curve. So, you get improved acceleration with no loss of drivability.

JimmyGTO

My son is running that cam in his 09 G8 GT with worked AI heads. Stock converter and stock 292 gears. He loves the cam.

G Atsma

Thank you! I thought it would be good for a little more HP, but that isn't bad. I have a feeling the torque is pumped up more than HP.

Ron@Vengeance

iTrader: (51)

I would suggest revisiting the tuning before throwing money away. The Kaotik is not a stock camshaft by any means, but with proper tuning it can run extremely well and it is daily driven in combinations all over the country without issue.

If we can be of any assistance please do not hesitate to reach out.

farmington

iTrader: (14)

MAYBE you would just be happier with a set of 3.73 gears in the rear. would really help the low speed manners.