Yesterday I purchased a T4/GT35 from CheapTurbo. The name is a little confusing so I'll list the specs.

Compressor:
GT35R compressor (note not a GT35 compressor), .70A/R, 61 inducer, 82 exducer
Turbine:
1.00 A/R divided, p-trim wheel, T4

I also ordered their V-band kit and am having them weld it onto the exhaust housing.

I was originally going to order a T04s but Ken at CheapTurbo said the above combo will give me better bottom end without compromising the top end because of the newer front section design. I'm shooting for a max of about 400rwhp with as much low end/mid range as I can get. The car is a daily driver so I want to keep it somewhat civilized. Has anybody been able to break 400rwhp on pump gas with a cat (stock or aftermarket)?

I can't wait to start pulling all the sequential stuff off!

 

Is this the one they call the 'BlowZilla'?

Been thinking about that turbo myself...

 

Most GT35Rs are a T3 foot print.. ATPturbo.com is the only one i know of that has one with a T4 footprint and it is a .82 or .84 A/R.



Might want to double check before buying a manifold.. Either way the turbo is a good one.

 

Yep that's it, but I prefer to call it the GT35/t04. I'm trying to forget that I paid $800 for something called Blowzilla

 

Thanks for the concern. I went over this with him a few times. It definately has a t4 rather than a t3 footprint. It's basically a T04s with the front section off the 35R.

 

Oh.. So it is not a GT35R.. it is just a TO4S with a GT35 wheel.


So it is also not Ballbearing.



Thanks for the info.


EDIT: Still doesnt mean it is a bad turbo.. Just not what i thought.

 

Correct it's not a ball bearing turbo, however it uses a GT35r compressor rather than a GT35. Apparently they are going to change the name to reflect this.

For comparison:
GT35:
wheel dia=76
trim=52
A/R=.50

GT35R:
wheel dia=82
trim=56
A/R=.70

 

ATP is not the only one, I can get those also, and I have already expressed them (Garrett) to work on a 1.0+ divided as well, and as usual they will have access to that also.

I think you will be happy with your choice, since you expressed what your goals were.

 

can't wait for the dyno!

 

finally going single, eh?

 

So how would you compare the GT35/40r to this "blowzilla" performance wise !? Advantages / Disadvantages ?

 

I think it could be a good solution for what he is looking for. I have no experience with it though, so I'm only going on what is on their site.

 

Sean,

Will you change the turbo in your gt35/40 kit to the newer T4 footprint once you've got them in your spec?

 

I will offer both still, in T3 or T4, we will see how close they get to what I requested.

-Sean

 

Sean,

I can't believe I got more post count!

Anyway, how's the price different, you think?

 

Sean,

And, how's the price differ, you think? As of now, the GT35/40 is under 3K (you posted on another thread)

 

This is speculation, but I think the wheel your quoting is incorrect.


CHEAP TURBO list the "Blowzilla" as having a 61 mm inducer and being rated at 65lbs / min.

There are actually 6 different GT30 comp wheels (as far as I found). YEAH.. SIX.

the wheel which best fits going by the 61mm inducer and 65 lbs/min is the part # 17714 which has a 61mm inducer and flows 65 lbs/min. It normally comes with a GT40 front housings, but seeing it has a 3.00" or 76.2mm exducer it would fit the T04S comp housing and back plate perfectly. Its a 56 trim. This is the exact same wheel I was thinking about hybrid-ing with a standard T4 frame also.

The GT35R wheel your describing

GT35R:
wheel dia=82
trim=56
A/R=.70

no such animal can be found......... there is a GT30 wheel with a 82 mm (3.22") exducer, but it comes in a 60 trim and flows 60 lbs/min. and its inducer is 58.938mm (2.32" which is very close to the T04S 2.324").

i'm dying to know which wheel there using (although I think I got it right) so I can plot the map for it. Give us some measurements when you recieve it please

~Mike.................

EDIT:.. just realised I was looking at GT30's and not GT35's... its all gotten confusing i'm gonna do more searching........

 

Update: My turbo arrived today For those that are interested, I posted pictures on the other forum under a thread titled, Blowzilla has arrived! Jason, not trying to undermine your operation, but I couldn't upload pics here so they had to go elsewhere.

 

Thats the turbo I was looking at too but I thought it would put out more than the T04S?

Blowzilla:

compressor: GT35

.70 a/r

61mm inducer

flow: 65 lbs/min 832cfm

turbine: T4

your choice of: on center housing: .58 a/r or tangential: .70a/r .84 a/r .96 a/r housing

available with 0 or P trim wheel



To4S:

COMPRESSOR SPECS:T04S

flow: 61 lbs/min 781cfm

.70 A/R HOUSING

60-1 TRIM WHEEL

TURBINE SPECS:T4

.96 A/R TANGENTILE HOUSING

V-BAND DISCHARGE

oil lubricated centersection. for use only with external wastegate.

vband discharge

q-trim add $100

GT-Q call for pricing

 

So what would be the differences in these two turbos with the same manifold?

 

I threw up a post on the other forum showing an overlay of the GT35R vs the 60-1 (T04S) compressor maps.

http://www.nopistons.com/forums/inde...howtopic=41942

 

But I thought people were getting more power out of T04's (B or S) than 400rwhp? Some close to 450, right? Shouldn't this one flow more than the T04S and get to 450rwhp easier?

 

Well considering most of the 35R cars put down around 400 flat I don't expect the same compressor, without a ball bearing center section, and a smaller exhaust wheel to do more than that. If it has good kick when I roll on the throttle at 3k and tops out around 400 I'll be satisfied.


I am still debating whether or not to upgrade the ignition. I know many people have hit 400rwhp with the stock ignition, but I don't what AFR is necessary to avoid breakup at that power level. Frankly, I don't think I feel comfortable using anything above 11.5:1.

My car is currently tuned to around 11:1. The car was dynoed with new factory plug wires, new plugs, and 4 gauge stereo ground cables. At 14lbs of boost my dyno chart starts getting fuzzy at high rpm. Therefore, I'm assuming a ratio greater than 11:1 is required. Those of you with experience please fill me in.

http://www.nopistons.com/forums/ind...showtopic=41942

Brian, I saw that. I was meaning to say thanks for doing that but I got bogged down with work over the last few days. Anyway, it's an interesting comparison. Do you have the efficiency numbers for the T04s chart? I recall them being lower than the 35R

 

I purchased mine today. Hopefully it will be better than my XS t04s.

Chris