TA-60 vs. TA-49

[wordy1]

What differences will there be between the 2? I currently have a TA-60 and am looking for a turbo thats a little more streetable, without considerably losing quarter mile times. Car is capable of mid 11's currently at 25 psi/ Speaking of which, how high can I raise the boost levels with the TA-49?

Car has an upgraded D5 that stalls at a true 2400. Rear end is a 3.42 ratio. I have not yet decided on a cam, but I want to replace the comp cams 206/206 with a less aggressive cam. It worked well with the TA-61 turbo, but its just too noisy for daily driving. Anyone have any recommendations for a quieter cam that will work better than a stock cam? I know it all depends on the turbo thats on the car, so I want to set this up and forget about it.

 

[Pronto]

I'm alittle confused, what are you looking for in your car? If you got a boost controller you could spool the TA60 better. The 206 cam is relatively mild. Is it a roller?

 

[Turbo Indian]

What differences will there be between the 2? I currently have a TA-60 and am looking for a turbo thats a little more streetable, without considerably losing quarter mile times. Car is capable of mid 11's currently at 25 psi/ Speaking of which, how high can I raise the boost levels with the TA-49?

Car has an upgraded D5 that stalls at a true 2400. Rear end is a 3.42 ratio. I have not yet decided on a cam, but I want to replace the comp cams 206/206 with a less aggressive cam. It worked well with the TA-61 turbo, but its just too noisy for daily driving. Anyone have any recommendations for a quieter cam that will work better than a stock cam? I know it all depends on the turbo thats on the car, so I want to set this up and forget about it.

I don't understand more streetable, I had the same setup you are describing & the car was more streetable than the stock set up & was able to run 10.90's with the AC on, & got 26+MPG with the wife driving it. what do you mean the cam is to noisy?

 

[wordy1]

Sorry for confusing you guys, I posted this at 3 AM, I was a bit tired . The valve train is too noisy with this cam and it drives me nuts. Everyone else who has this cam has complained about the same thing., It is a flat tappet cam. The previous owner put it in for the TA-61 turbo. Turbo lag with the stock D5 is a bit of an issue. I'd rather not invest $500 or more for a larger stall as the car breaks them loose a lot now and a larger stall would just make things worse. I think maybe a boost controller is next on my list, but I have read some posts saying that they do more harm than good.

 

[UNDER-PRESSURE]

The only harm an RJC boost controller will do will be to your rear tires. They do work well at spooling larger turbos with the stock D5 convertor.

 

[wordy1]

Sounds like an RJC boost controller looks like the best option. Will it work well in conjunction with an ALKY system? Anything to do to lessen the valvetrain noise? It is really annoying,.

 

[UNDER-PRESSURE]

It will work fine with your Alky setup but has nothing to do with the engines valvetrain. Not much you can do there besides switching cams. Try the boost controler first & i"ll bet you think your driving a differant car.

 

[wordy1]

Sounds like the plan, will I need to get the chip re-programmed to use with an RJC boost controller? I think I am going to get the Lunati 202/202 cam and sell the Comp Cams 206/206, from what I have read it will work very well and will be as quiet as the stock cam.. What you guys think??

 

[UNDER-PRESSURE]

No need to change to ANYTHING! It's a simple 10 minute install & enjoy. 1 of the best mods you can do to a buick. If you don't have the RJC power plate also put one of those also on your wish list too.

 

[chrisgarrett]

If you are going to stay with a flat tappet cam, I suggest the Erson
208/208. I have had several cams in my car, and the Erson 208 is great. I now have the quietest engine ever and the sound from the exhaust is intimidating. Erson has produced an excellent cam that is correctly ground on #3 lobe.

 

[wordy1]

What about the GT3255a turbo vs. the TA-60? I have read some excellent reviews. There is someone willing to buy my TA-60 so I am up for trying somthing different.

 

[wordy1]

Is the #3 lobe whats making the valvetrain so noisy with the comp 206/206? Will I have to upgrade to a higher stall with the Erson 208/208 cam?

 

[chrisgarrett]

No, it has nothing to do with the noise. The Erson cam has the correct grind on #3 exhaust lobe. Because of the geometry of #3, the lobe is not as offset from the lifter as the other lobes. On a correct grind, the #3 should be reverse tapered to allow for this. Because of this,normally if a flat tappet is going to wipe on a TR, it will be the #3. Many other cams are also correctly ground on #3, but in my experience, the Erson is a proven cam for our cars, and is surprisingly quiet.
Valvetrain noise can be caused by worn lifters, incorrect preload, etc. In addition to buying a proven cam, the most important aspect of a quiet valvetrain is probably correctly setting the preload.
As far as performance goes, our cars are not that cam sensitive. Turbo grade affects stall not cams. You will not need to upgrade your converter if you swap cams.

 

[chrisgarrett]

I just noticed you're from Urbana. I have a son down there in his senior year at U of I. Are you a student or a resident?

 

[wordy1]

Both a student and a resident. Don't think there was anything wrong with the install on the cam as many people here with the same have the same complaint. I think the problem may lie with the cam itself. Never had a valvetrain this noisy, just not use to it I guess, but then again, I've never had a car that gets 28 mpg highway and can run 11's at the track /

 

[Pronto]

If I were you I'ld have someone that has real experience with turbo Buicks check the preload on the lifters. You may not need a new cam. As far as the turbo goes, why spend over $800 on a turbo when you may be totally satified with using a RJC boost controller for under $50? Spend your money on an Alkycontrol kit and Turbo Tweak chip to match your combination.

 

[wordy1]

I agree, looks like the next thing on my wish list is the RJC controller. Anyone with the comp cam 206/206 care to chime in?

 

[ttypewe4jim]

I agree, looks like the next thing on my wish list is the RJC controller. Anyone with the comp cam 206/206 care to chime in?

I would check your preload and go from there Ive got one and a few other cars I know of do and there not to loud

 

[Quick6'n'-K.C.]

I will chime in about the 206/206 comp cam.

Put it into a 86 GN with heads that have never been off the car and the cam is quiet as a mouse!

I agree with one of the posts above, that cam should be fairly quiet of its setup correctly....

Do you know what the lifter preload is on your car, and what style rockers are you using?

Cam sensors make alot of noise too....

If it was my car, id leave the ta60 on it with the 206 cam, get Julios meth kit and Erics meth chip and a RJC bleeder.
If your wanting to put a ta49 turbo on the car, it will spool faster, but at least try the RJC bleeder and the car should spool alot faster still using that ta60 turbo.

You can boost a 49 to about 27psi, then its starts blowing hot air.

I would think that since your wanting a smaller cam, smaller turbo, just to get more streetable combo, then the car should run the same as its running right now with the 206 cam and same turbo.

I really dont see the point in going to the smaller parts, just tune it for what youve got and see what its doing.
It would probably run about the same with smaller parts.
I see tires in the near future!

BW

 

[BillyRValentine]

I am going to take a guess here and say that you are using the stock rockers. If so you may want to look at a new set as being as old as they are they are bound to have worn enough that the clearances are not as they should be. New set of stock style rockers and pushrods and you should see it quiet down. Hope this helps.

Jim C.