G6X3 Cam Questions

[dekan513]

that seems right 3.90 gears will make it work alot better and agree 100% with u butcher

[PBANDPKSCAMARO]

I'm new here to the Camaro world but not new to the ls world....

And to me it sounds like to me a lot of people in the Camaro world are getting took to the cleaners. Sounds like these "tooners" are doing one of two things.

Either they have a one tune fits all

Or (more likely) they are tuning for WOT on the dyno only. If your tuner isn't spending approximately 1-2 days just tuning your car you are selling yourself short. In addition you should spend some time in the seat on the street with your tuner.

[John Deere Racer]

3.90 gear atleast would help

[Butcher]

Originally Posted by John Deere Racer

3.90 gear atleast would help

Not necessarily. 3.90 gears might make it feel worse. The OP doesn't just have a slow speed surging problem. His car is having problems up to 2500 RPM. 3.90 gears would put less load on the motor, and that might make the surging feel more pronounced. Even with 3.90 gears, He would still be below 2500 RPM on the highway.

[newmoon]

Originally Posted by blkevrythng

I have that cam, and although i am a noob car guy... It sounds like those are just a few of the cons to having a cam. Mine bucks a little at low rpms but i just work it out with the throttle and clutch

Exactly, most in here who claim the car runs like stock with no bucking or surging are probably not being completely honest to promote their builder or cam selection. Some may be a bit better than others but bottom line is it will not be stock like in it's manners. You will learn to adjust for it with clutch slipage,throttle, and using neutral a bit more. The thing with these cams is yes they are 100% streetable, and can drive anywhere, but you do sacrifice some of the civility of the car.

[blkevrythng]

Originally Posted by newmoon

Exactly, most in here who claim the car runs like stock with no bucking or surging are probably not being completely honest to promote their builder or cam selection. Some may be a bit better than others but bottom line is it will not be stock like in it's manners. You will learn to adjust for it with clutch slipage,throttle, and using neutral a bit more. The thing with these cams is yes they are 100% streetable, and can drive anywhere, but you do sacrifice some of the civility of the car.

LOL if i was concerned with CIVILITY i woulda gotten a honda accord

[Ivan @ Southwest Speed]

Originally Posted by blkevrythng

LOL if i was concerned with CIVILITY i woulda gotten a honda accord

LOL....

Both the G5 and G6 are good cams and there is a decent argument for the 5 being an easier (read: more docile) car to handle under 2000 rpms.

But like some have said, there certainly is a tradeoff when it comes to certain aftermarket add ons for any car.

You want that extra 70 rwhp but creep through at 9 mph.....tough to make any cam that'll do that.

Gears would def cover that lower end driveability, but you'd definitely feel it around 4500 rpms too.

I guess that's what those 2 OD gears are for eh?? !!

Enjoy your weekend gang!
Ivan

[Rage]

I had issues with my build from day one..... erratic idle, bucking, surging, never consistent. After a few trips back, they found that the return line for the intake wasn't clicked into the valve cover(just laying on top of it, sucking in unmetered air). After they found that and did another tune/road tune, I have ZERO surging, and only bucking under 1500rpm under light throttle. To the OP, take your MAF out and it should have one letter and one number on it. Search the forums, you will find pics. If it only has one number, thats a weak MAF and needs to be replaced.

[dekan513]

its all in what u want , tho both are great cams , and yes i do believe they are alot of ppl that get what i call ripped off but for the most part this forum seems to have good ppl. and is why they make diff cams.

[Bell040]

Originally Posted by Butcher

I don't assume that 9 years of tuning means that they know everything.

I think you have it backwards. A lower LSA would be more radical, not a higher LSA.

It might be a tuning issue, but it might be more than that. That is why His tuner should log the car and find out exactly what the sensors are seeing. His tuner should eliminate any mechanical problems, and then His car can be properly tuned. There are more than a few people that have no problem with the G6X3. So clearly something is different with this car. As you said, He has been to two tuners. Neither one could fix His problem, so that makes me think there might be something wrong mechanically.

As for driveability, I have a cam in my '03 Z06 that makes the G6X3 look like a baby cam. It doesn't buck, surge, die out, or hunt for idle. EVER! Even when it's cold. It drives like a stock car. Now, I do have 3.90 gears in my car and that helps with slow speed driving. However, I went from a stock long block to a radical motor (both with 3.90 gears) and I didn't have to change my driving style at all.

9 years isn't everything... point taken, but I assume 9 years of tuning is more than most of us have.

I didn't say higher LSA would be more radical, I said more overlap would be.

You are correct that it is possible to have a big cam and still be drivable. I just want the guys on the fence about getting a cam to be ready for a drivability of 1-2 on that scale... don't go into it thinking it will drive like stock...... because if it doesn't....

[dekan513]

i agree 100% , some ppl say they dont feel on driviablity loss , i dont think i agree , but bigger isnt always better

[Kiowa88]

G6X3 here. I was having some terrible issues with a well known tuner in my area. I was having some horrendous hunting and surging issues. Gave him a few tries then contacted Ted J. His first file fixed everything, and then it just got better and better with each data log we did.

As for the drive-ability..no where near stock. Under light loads below 1600ish she will buck. Don't use 6th gear below 65mph at all or she'll buck. Driving around in a parking lot is more like coasting around in neutral. You kind of learn when the bucking/surging will start and it just takes a little throttle to get rid of it/down shift.

With all that said, I absolutely LOVE the way the car drives now.

[Butcher]

Originally Posted by Bell040

9 years isn't everything... point taken, but I assume 9 years of tuning is more than most of us have.

I didn't say higher LSA would be more radical, I said more overlap would be.

You are correct that it is possible to have a big cam and still be drivable. I just want the guys on the fence about getting a cam to be ready for a drivability of 1-2 on that scale... don't go into it thinking it will drive like stock...... because if it doesn't....

It doesn't matter how long someone has been tuning if they are not doing it properly. There are plenty of shops that take short cuts, or do "cookie-cutter" tunes to try and save money. There are also certain shops that most people end up taking their car to in order to fix the mistakes that other keep making.

You're right, you didn't say that. I mis-read you're first post.

A big cam won't drive like stock, that's true. Without variable valve timing, you can't have big HP up top without giving up something down low. That's why you have to install a different torque convertor when installing a large cam. However, when cruising above 1500 RPM, it shouldn't be too much different than a small cam. A properly installed and tuned cam should not have any issues with cold start-ups. It should have no problem idling whether it's cold or hot. It should never hunt for idle, and it should never die out when coming to a stop.

[CPDSS]

car is back at the tuner now. i'll let you all know when i get it back. i'll either be very happy or very pissed and looking for a third tuner.

it doesnt help that my installer(chevy dealer with a performance shop but no dyno) is about 35 miles north of me and the tuner that they recommended is 45 miles south of me. hard to troubleshoot if its tuning issue or mechanical issuse with the large distance. the tuner said the MAF has excellent readings according to his log(data sheet). all the plug wires look clean and seated properly. if the tuner cant get it straight i will have the stock throttle body put back on to see if the VMAX is the culprit.