A/R .50, .60 or .70?

[SpeedSixxx]

I'm buying a new compressor housing for my GT35r.
The housing thats on it now has a .50 A/R and I'm not so sure what A/R I should get.

what are your opinions on the A/R I should go with? a .50 is just not for me but would you gizzards think a .60 or .70 A/R would be best for me?

[SSinstaller]

Do you mean turbine AR? The AR. of the compressor housing isn't near as important..

If your talking about the turbine AR, what are your HP goals? The smaller the AR. the faster your spool, but you lower the peak HP potential... That said, even with a .50 AR you should be able to hit 400~450 with the gt35, and you'll spool a few hundred rpms faster than I do with my .83 AR tubine...

[www.cp-e.com]

Go with the .63 or .82

I would probably lean towards the .63 if your HP goals are in the upper 400s. It will give a slight spool advantage of the .82. The .82 is more towards the 500-525 range.

[SpeedSixxx]

i meant the compressor housing A/R

and your loot will be in your accoutntoday after 4 promise/./

[www.cp-e.com]

The compressor size isn't all that important. The 70 is what I had but like I said the turbine is what matters most. You should focus on switching your turbine housing. That is what will make a diff.

[SSinstaller]

Originally Posted by SpeedSixxx i meant the compressor housing A/R and your loot will be in your accoutntoday after 4 promise/./

A smaller AR would generally be better if your planning on running higher pressure ratios, but it isn't going to make a significant difference in the turbo's performance one way or another as you won't be going anywhere near the flow limits of the gt35... Get whichever housing is going to fit better, don't worry about the AR..

I have a .70 a compressor housing, only because it was what the 4" inlet housing came with..

[spnkr21]

yeah dude you should replace the turbine housing before the compressor housing. Bigger gains

[KoukiS14]

The .70 A/R is the "proper" compressor housing for a GT35R. As far as turbine A/R, the .63 A/R is capable of around 600 whp in two wheel drive applications if you've got a setup capable of the amount of boost that a GT35R is capable of. That rules out all Mazdaspeeds at the moment.

[SpeedSixxx]

I'm changing the compressor housing cause it came with a 3inch inlet and I already have a 4inch Cpe tip so it must be done. I'll get the .70 housing juss cause bigger is better

when I build the motor in a year and I have money saved to change the turbine to a t3 .63 A/R I'll then also change the turbo to manifold flange.....

This shit been sitting in my apt for a while now so it's goin on

[SSinstaller]

Originally Posted by SpeedSixxx I'm changing the compressor housing cause it came with a 3inch inlet and I already have a 4inch Cpe tip so it must be done. I'll get the .70 housing juss cause bigger is better when I build the motor in a year and I have money saved to change the turbine to a t3 .63 A/R I'll then also change the turbo to manifold flange..... This shit been sitting in my apt for a while now so it's goin on

If you have an manifold that uses the OEM turbo placement the larger compressor housing will not fit. That's why the ATP gt35 comes with the smaller T04E housing..

[SpeedSixxx]

Originally Posted by SSinstaller If you have an manifold that uses the OEM turbo placement the larger compressor housing will not fit. That's why the ATP gt35 comes with the smaller T04E housing..

what manifold do you have?

i'm using the medievil manifold which does use oem placement.
I know you said you got the .70 A/R housing so I assume your mani doesn't have oem placement?

why does it not fit and could I do anything to make it fit? shave any metal? cut a huge hole somewhere? lol

if the .70 doesnt fit does the .60?

[www.cp-e.com]

Originally Posted by KoukiS14 The .70 A/R is the "proper" compressor housing for a GT35R. As far as turbine A/R, the .63 A/R is capable of around 600 whp in two wheel drive applications if you've got a setup capable of the amount of boost that a GT35R is capable of. That rules out all Mazdaspeeds at the moment.

why does it rule out the mazdaspeeds?

[SSinstaller]

Originally Posted by SpeedSixxx what manifold do you have? i'm using the medievil manifold which does use oem placement. I know you said you got the .70 A/R housing so I assume your mani doesn't have oem placement? why does it not fit and could I do anything to make it fit? shave any metal? cut a huge hole somewhere? lol if the .70 doesnt fit does the .60?

My manifold is as far away from the OEM placement as you can get...


I don't know of anyone who has made the standard gt35 compressor housing work in the OEM location, so I have no idea what would be involved trying to make it work...

[SpeedSixxx]

i just don't understand why the .70 wouldnt fit? it's not so much bigger then the .50 and what would you say is "blocking" it from fitting? the valve cover? wires?

you sure ATP made the compressor housing a .50 cause of the clearence or was it the hot side they made so small so it would fit?

who has tried this and what was the prob>?

and SS you get my payment homie?

[superskaterxes]

when i did the 3076 with the .60 it was about 1/4" from the bottom studs on the head and i had to wrench that bitch in there. any bigger and it def would not have fit.

[SSinstaller]

Originally Posted by SpeedSixxx i just don't understand why the .70 wouldnt fit? it's not so much bigger then the .50 and what would you say is "blocking" it from fitting? the valve cover? wires? you sure ATP made the compressor housing a .50 cause of the clearence or was it the hot side they made so small so it would fit? who has tried this and what was the prob>? and SS you get my payment homie?

AFAIK, the actual compressor housing hits the block. I haven't seen it in person, but that's what ATP told me, and a big part of why I went the way I did with my setup..

Yep, got your payment. I'm stuck at work all day today, so I'll get the mounts shipped out either this afternoon or tomorrow.

[SpeedSixxx]

Originally Posted by SSinstaller AFAIK, the actual compressor housing hits the block. I haven't seen it in person, but that's what ATP told me, and a big part of why I went the way I did with my setup.. Yep, got your payment. I'm stuck at work all day today, so I'll get the mounts shipped out either this afternoon or tomorrow.

I just called ATP and the guy had no idea what I was on about..lol

he said to email them for the 20th time..so I will

i'm thinking tho...maybe bring my mani anywhere they can heat it up and maybe pull the turbo flange away from the block a lil bit? SUPERSKATE, you said with the .60 A/R you had to monkey that cosby in place and that there was hardly 1/4 inch of room..what about on the other side of the compressor? how much room from that side of the compressor to the firewall? maybe a lil bit of bending will do the trick.

another thing..and I really do see what ppl are talking about is...my medievil mani

how every damn mani they made was different from the warping to the actual cut of the head flange to the tube distance and diameter. so maybe although it is an OEM turbo placement design they were a bunch of fuck tards and nothing was the same I.E. the distance from the turbo flange to the actual cyl head block.

I WANT ME A .70 godd damn it.. WHAT A WIN BOAT I HAVE...love my car@!!!!!

[KoukiS14]

Originally Posted by www.cp-e.com why does it rule out the mazdaspeeds?

I did say, "at the moment." We haven't seen any 35 psi 600 whp Mazdaspeeds just yet. Keep working and wow us though.

[www.cp-e.com]

I still don't know why your so fixated on the cold side when changing out the hotside would make much more of a difference

[superskaterxes]

speedsixx,

as far as i can remember, there was more then enough room between the comp and the firewall without the IWG actuator of course.

[NJSPEED3]

Finally something interesting to read! The proper thing to do is getting your mani and dp sized for the turbo you want to run but what do i know im just a plumber. Fitment is key take Socks car for instance, we saw what a slight fitment issue can do to such a nice set up.

[SpeedSixxx]

Originally Posted by www.cp-e.com I still don't know why your so fixated on the cold side when changing out the hotside would make much more of a difference

I wrote in my last post why I NEED a new compressor housing. I have a dooky .50 A/R polished 3 inch inlet 35r compressor housing.

I have a CPE 4 inch TIP.......I want a .60 A/R compressor housing (as ATP says is ok)
with 4 inch anti surge (bullet hole type-machined) inlet NON polished (me like to pant)

and for the reason why I am not going to change my hot side JUST YET is because if I did that I would then have to hack up my beautiful manifold and have a t3 flange welded on.

plus I just dented my rim so bad a few hours ago there is a huge triangle chunk missing and now it doesn't hold air =( my tires were about fucked anyway.

I just ordered new rims and tires so now i'm gonna have to wait just a lil bit longer to get my new compressor housing.

I WILL change my hot side over to t3 .63 A/R when I build the motor.
If you remember what I wrote to you saying that I want near 400 awhp for now cause I'm on oem internals...I don't want to push it that hard. An ATP hot side will do for my power goal until I build the motor.

I have 55k on the motor now, nearing 100k I'll rebuild the motor.

ty for the concern but as of now all i'm worried about is driving on a damn donut for a week in the fresh snow and getting me a new sexxxy 4 inch, anti surge compressor housing .60 A/R

=( i'm gonna go sulk over my rim =(

[spnkr21]

I have cp-e stock turbo inlet. Gimme a pm if u want it

[SpeedSixxx]

Originally Posted by spnkr21 I have cp-e stock turbo inlet. Gimme a pm if u want it

i have cpe 3 inch inlet as well, but i plan on selling it when I get the 4 inch comp housing.

you get the oil line yet?...should be there today or wed the latest...i hope today

[SpeedSixxx]

superskates pics of your turbo installed please..i wanna see what the .60 A/R comp housing looks like near the block.

I found a used 35r .70 A/R comp housing for 150 but i don't wanna rush and buy it knowing that at least on the stock manifold the .70 won't fit.

as stated before I have a Medievil manifold and I may not even run into any problems using a .70 A/R comp housing as a stock mani guy would.

[SpeedSixxx]

please close this thread!

[mason]

LOL!

[SpeedSixxx]

Originally Posted by mason LOL!

LOL wut? close this fuckin thread please

[djuosnteisn]

Originally Posted by SpeedSixxx when I build the motor in a year and I have money saved to change the turbine to a t3 .63 A/R I'll then also change the turbo to manifold flange.....

Almost a year exactly.... pretty close anyway.


And since this thread isn't closing.....

how much longer til your new hardware is up and running man?

[bcmurphy87]

well i just ordered a gt35 with teh 70 compressor i hope i can get it to fit. Im already hacking my pg v3 mani to flang it for t3 and ewg. maybe they can tweek it to fit. They do sick fab work so im not worried about the quality just the fitment.

[SpeedSixxx]

Originally Posted by bcmurphy87 well i just ordered a gt35 with teh 70 compressor i hope i can get it to fit. Im already hacking my pg v3 mani to flang it for t3 and ewg. maybe they can tweek it to fit. They do sick fab work so im not worried about the quality just the fitment.

good luck with the 35r..

i'm sure you won't have a problem gettingit to fit.

keep us updated.

Originally Posted by djuosnteisn Almost a year exactly.... pretty close anyway. And since this thread isn't closing..... how much longer til your new hardware is up and running man?

i'll be makin a thread in the coming week or so.

[wette460]

Originally Posted by SSinstaller My manifold is as far away from the OEM placement as you can get... I don't know of anyone who has made the standard gt35 compressor housing work in the OEM location, so I have no idea what would be involved trying to make it work...

Hey SS, I see this thread was forever ago, but I was wanting to know what your powah levels are with that 35R setup. That is quite a nice setup you have there man!