New Turbo

[ringman]

I wanna put on a new turbo, currently I run too big of one, and i think it needs a rebuild. I run stock engine, with 60lb injectors, front mount intercooler, hemco upper plenum, 9" converter 3500stahl, trans with transbrake....current turbo is te72, car has ran 11.9@114, but did run 12.0@113 with stock turbo. Anyways, talked to cottons today he recommends a 62 ball bearing, what do u think. I always go with his advice, just curiuos your take. Also, is $200 extra for ball bearing worth it? I wanna run 11.50s but keep the streetability aspect. Thanks in advance

 

[jasjamz]

I'd pick one of the frist two if I had stock heads and cam but a decent stall converter like yours.

http://www.precisionturbo.net/Street-and-Race/ss/600-800HP/2

 

[Phoneguy]

I think others will chime in , but that converter with a 62 is way too much stall. That Art Carr will blow the tires off. Get a PTC spec'd by Dusty.

Bryan

 

[ringman]

Is the ball bearing option really worth the extra money? As for the 62, thats kind of what i want as far as real quick street spool, and i want to be in that 11.3-11.5 range with alcohol and 24psi of boost....what u think? Ive always bought cheap used turbos so this new stuff is new to me a bit

 

[rmar]

25 lbs. is 25 lbs. with the right converter u don't have to have a BB

 

[TurboBob]

very few converters are rated correctly.

What boost does it take to get to 3500 RPM on the brakes? What RPM is 0 psi?

Once we know these we will better understand the converter and be able to suggest a turbo size.

Bob

 

[84BuickGNYorkPA]

Is the ball bearing option really worth the extra money? As for the 62, thats kind of what i want as far as real quick street spool, and i want to be in that 11.3-11.5 range with alcohol and 24psi of boost....what u think? Ive always bought cheap used turbos so this new stuff is new to me a bit

BB will spool quicker, but performance should be the same at the track, for the street you may want it. On the foot brake my 6262 jb takes maybe 1.5 seconds to go full boost. The turbo may also last longer with the ball bearing option, said to be more durable... Hey you only live once, go for it.

Chuck

 

[ringman]

I hate to say it but Ive always launched off transbrake so idk where the boost was at 3500 etc...and car is down now. Precision recommended a 6765 i believe, and cottons recommended a 62 bb.....car has 60 lb inj with alky kit, and other mods i said, just really afraid of getting too big again because I dont want to buy another turbo for this car. I appreciate the help....what are your thoughts between the 62 and the 6765?

 

[84BuickGNYorkPA]

The smaller the better for the street/fast spool. Not sure of your goal, I'm in the low 11's @ 127.7 mph, with my one and only run at the track with my current turbo, sure I could be in the 10's with a better torque converter/60' time improvement.... 1.858 on the run in my signature.

Chuck

 

[SHADOWII]

I think PTE recommended the 6765 because of your stall and the need for decent street manners, cotton's recommended the 6262 for it's good street manners, but w/a ptc recommended stall, would give you all that you are asking for....good street manners and low 11's w/ side benefits of saving the rubber on the tires and a little fuel.

 

[John Wilde]

I hate to say it but Ive always launched off transbrake so idk where the boost was at 3500 etc...and car is down now. Precision recommended a 6765 i believe, and cottons recommended a 62 bb.....car has 60 lb inj with alky kit, and other mods i said, just really afraid of getting too big again because I dont want to buy another turbo for this car. I appreciate the help....what are your thoughts between the 62 and the 6765?

Who at Precision recommended at 6765 for a stock motor?
You don't have enough fuel, or motor to make the 67 run and better than the 62.
If you are buying Precision you should consider the 5862 or the 6262.
If you are getting the Turboetics the 6262 with their BB set up should be fine.

 

[dandaman]

My pref would be a GT35/40 with a 1.06 rear

We are going 10.0@138 with one of these on E85 using a stock motor with small cam and 130lb springs.

we are also using a 3500 stall and TH700, but off the foot brake.

3200lb car and driver.

 

[John Wilde]

My pref would be a GT35/40 with a 1.06 rear

We are going 10.0@138 with one of these on E85 using a stock motor with small cam and 130lb springs.

we are also using a 3500 stall and TH700, but off the foot brake.

3200lb car and driver.

Last time I checked Garrett does not make a 3bolt Buick Turbine Housing anymore.
Precision and Turbonetics are the only options.
However with that being said the 61 compressor wheel Precision was using for a long
time was the Garrett GT35 wheel. They may still use it, I am not sure.

 

[jasjamz]

Who at Precision recommended at 6765 for a stock motor?
You don't have enough fuel, or motor to make the 67 run and better than the 62.
If you are buying Precision you should consider the 5862 or the 6262.

I agree with the 5862. I have a friend with the 6262. It is a great turbo for more of a modded motor(heads & cam). You have a good converter for a wide range of turbos, but lack enough motor mods. If you want to buy once, the 6262 with the .63 housing "may" work out for you. It really wakes up at 23psi. The good part of it is if you don't like it, ported irons and a small cam are the next mod anyway. I had a billet 6765 and would not tell anyone with a stock long block to bolt it on. Precision may have assumed you had more mods like stated before.

 

[ringman]

I think they were thinking eventually I would be doing heads and cam, but I dont want to put a roll cage in this car, so 11.3 to 11.5 is really my goal. It seems most people recommend the Precision style over Turbonetics? Looks as though most people are leaning towards Precision 5862 or 6262 instead of cottons 62? And by the way I really appreciate all the help.

 

[jasjamz]

I wouldn't let track rules dictate my build. Pick the one that will work best for your combo and driving style. You can control the boost which will be the best way of limiting the horsepower, torque, and track times. Remember, the timing and fueling will effect spool also. I remember having a 3500 stall and a TA-49 on a stock long block. It was quick spooling so racing V-8 Mustangs and Camaros from idle was fun! We're here to help, so you're welcome from us all.

 

[dandaman]

Last time I checked Garrett does not make a 3bolt Buick Turbine Housing anymore.
Precision and Turbonetics are the only options.
However with that being said the 61 compressor wheel Precision was using for a long
time was the Garrett GT35 wheel. They may still use it, I am not sure.

ah ok, he wants a direct bolt on. ok. Sorry, our aussie cars didnt come with turbos so we make manifolds to suit them.
Theres a market right there, 3bolt to 4 bolt T3 flange adaptor.
I see a lot of you guys use small housings too, dont you find it chokes your topend a lot?
We picked up 9mph going from a .82 to a 1.06.
A .63 would choke a 3.8 wouldnt it?
A 6262 wouldnt be far off a 35/40, the wheels are only a tiny bit bigger. A 1.06 on that would be nice, shame your stuck with a 3 bolt flange.
I guess if your not interested in the track the .63 would be ok.

 

[JT'sV6]

Cotton recomended me the 6265 for my setup but I choose to stay with the 6262 jb. It is a bit laggy on the street but the performance at the track is there. You'll have no problemb running low 11's on 25psi launching on a brake and a good tune.