60-1 ball bearing v/s GT35R
 

My question I guess is how will this turbine spool in comparison to the GT35R?

A friend of mine uses a gt35r, with the T3 1.06 ex housing, and his turbine spools extremely quick, I run a IHI RHC-7 which is nothing more than a 62-1 with a P trim.81 undivided housing. My turbine has been great, but I would like to try something else.

the thing I do not like about the GT35R is the t3 hotside (even though t4's are available) and the fact that it seems to peter out right around 350~400ish where as the 62-1 is good for about 400~450ish and the center sections seem to die with some regularity is also not such a good thing.

ATP has a ball bearing 60-1 that I was looking at, it is a couple of hundred less than the gt35r and the 60-1 compressor wheel is a wheel that has been used to great sucess, having a P trim exhaust wheel is also a tried and true item with the 13bt.

Has anybody here tried both, maybe someone with a BB 60-1 that replaced it with a GT35R?

Kenn

35r with a 1.06 divided t4 housing is the way to go.

the CHRA isn't the only thing about the "GT" series turbochargers that aid to quick spool. The design of the compressor wheel itself helps.

I think you'll be disappointed if your spend the $$$$ on a BB 60-1...when you can get new technology with a GT.

I had a 60-1 and now have a non-BB GT with a "R" compressor wheel with a T4 60-1 sized turbine wheel in a small housing and I'm pretty impressed with the characteristics for half the $$$$.

Either run a divided T4 35R or run the GT3574. I think you would be surprised at how quick the 3574 comes on for a non-BB unit

Zero R, we corresponded a while back about possibly picking up a 35R, and after watching all of the problems my friends have had with theirs I am frankly rather worried.

(Let me categorically state that none of my friends bought their kits from you they bought from several different vendors)

what seemed to happen in my eyes was the center cartridge overheated, and the seals, and eventually the bearings went out as a result of this. I could not dissect it to prove it was an overheating issue, as he had to send it back for warranty issues. But it seems fairly plausible, also their seems to be a large amount of confusion on the size of the restrictor pill for this turbo, I have seen 4 different size pills come from different vendors, all of them claiming to be the correct size.

I just cannot afford to buy a turbo and then have it crap out after 4000 kilometers, from what I have seen sofar the gt35r has the reliability of a ebay turbo.

maybe these are growing pains, I personnally feel its the T3 hotside, being too small and causing undu amounts of heat to be transmitted/retained by the center bearing section.

you offered a T4 hotside in your last post, can you get the following optioned out, and how much would it cost:

also what are the disadvantages of going with a .60 series compressor cover vice the .70 (60-1/to4s) cover it would make it a lot easier to fit in an airpump if a .60 series cover here optioned.

kenn

Sounds to me like you friends are running the .035 restrictors. We run either no restrictor or a .070. The CHRA is internally restricted and if I can some day I am going to cut one open and show you guys just how restricted it is. That said, I have had nothing but excellent results with 35R CHRA's of the virtually hundreds sold I have seen two failures and one was user error on install. The only other reason for that kinda failure was if your friends ran no coolant through the water jacket. I have seen them literally spit bearings out the drain because of this.

The .60 A/r will mean your going to need to spin the turbo faster to move more air(simply put). The turbo will run cooler temp charge air with the larger .7 A/r how much it will effect you will depend on how much boost you intend to run. Essentially you will be less eff. on the compressor side to a degree.

I've been looking at a Precision SC6176RS.It's a ball bearing version of the PT61 or that journal bearing turbo aspec sells, i.e. the 35R comp.and P-trim T04 exh. wheel.Better transtional response then the journal bearing version and bigger exhaust wheel then the 35R as well as not having only one source to have to obtain a divided T4 exhaust housing.From some previous posts gather if you own a 35R-T3 good luck trying to get a T4 divided housing off of them.

Sean can we take this to PM?

sweeet