When buying mine, i read that there was minmal differences between the 2.If anyone knows for sure, i would like to hear.

The only differnece is that the 3inch just tapers from 2.5 to 3, so i cant see it being a big deal.







Modified by 93supercoupe at 2:28 PM 1/18/2007

 

63AR, i forgot to mention.

Also, the one i have is a precision exhaust housing w/ the 2.5 outlet, so whats the difference?

 

Sooo everyone and there mother owns one, but nobody knows the differnece?


The HT way i guess.

 

sorry, i don't have an answer to your question...but if you are taking measurements of it, what is the total width of the compressor housing(the dimension with the remote in the picture, like if you took out the remote and put the tape measure in its place)??

Thanks..

 

the difference is in the housing one is GT dischrage from garrett which is 4 bolt 3" discharge vs precision turbo which is 4 bolt 2.5" dischrage.


Precsion uses the same center just with there housings.

 

im talking about power and spool differences.

I relize they are 2 different sizes, hence the question im asking.
If anyone knows the Power and Spool diffs, then i would like to know.

I dont think Precision would goto a 2.5 if it affected the power output alot.

 

its farily neglegible the reason precision does it is to build cheaper item for the consumer.

 

ok i'll take a stab at it if you'll help me with my question....since the exducer is 2.5" an outlet size on the turbine of 2.5" is appropriate...and is not restrictive. the taper to 3" is just to allow a low turbulent transition from 2.5" to 3" .

 

So no one has a solid answers w/ numbers of even expeirence???

Im going to call around later this week and find the answer out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18bturbo &raquo;</TD></TR><TR><TD CLASS="quote">its farily neglegible the reason precision does it is to build cheaper item for the consumer. </TD></TR></TABLE>

I would like to agree with that statement that is cheaper to the consumer, but its really not, i called precision while back, and got quoted 1500 bucks for a 35r, so i just ended paying 1510 to atpturbo.com, for a 35r with a 3inch vband for the turbine outlet, AND a polished housing. and the casting from garrett is a lot nicer in my opinion too..

ive had precision turbos in the past, so its not like im talking down on them, but truthfully i wasnt happy with the comperssor side casting, when i hand polished it. it was very porous.

 

I dont think its for power, im not going to run a 2.5" DP with a 35r and i dont know who would.. It would be eaiser to buy the garrett hosuing thats 3" so making a 3" Dp is that much easier.. Heres my 35R exhaust hosuing




This is my 2nd 35r, my first 35r had the 3" 4 bolt... I didn't like it cause i wanted vband....

 

so whats the diffence?????????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mykizism &raquo;</TD></TR><TR><TD CLASS="quote">

I would like to agree with that statement that is cheaper to the consumer, but its really not, i called precision while back, and got quoted 1500 bucks for a 35r, so i just ended paying 1510 to atpturbo.com, for a 35r with a 3inch vband for the turbine outlet, AND a polished housing. and the casting from garrett is a lot nicer in my opinion too..

ive had precision turbos in the past, so its not like im talking down on them, but truthfully i wasnt happy with the comperssor side casting, when i hand polished it. it was very porous.</TD></TR></TABLE>
I paid 1350 with the anit surge housing, ceramic coated exhaust hosuing with v-band and .63

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quickgti1.8t &raquo;</TD></TR><TR><TD CLASS="quote">
I paid 1350 with the anit surge housing, ceramic coated exhaust hosuing with v-band and .63 </TD></TR></TABLE>

thats a good deal man, i wish stuff is cheaper now a days,, seems like everything is just up in price now

 

yeah, i paid 1300-1400 for this one like a year ago, and it hasnt even been on a car yet.

 

to the op, i would go with GT3582r with a 3 inch out vband, dont limit yourself with a 2.5 inch out or a 4 bolt discharge.. its a pain in the rear in the long run..

 

i bought the 4 bolt discharge, but bought the adapter to run Vband 3inch... Same thing, but i got a smokin deal on the 4bolt GT35R instead of paying an extra 100$ approx for the vband discharge

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Topdawgg &raquo;</TD></TR><TR><TD CLASS="quote">i bought the 4 bolt discharge, but bought the adapter to run Vband 3inch... Same thing, but i got a smokin deal on the 4bolt GT35R instead of paying an extra 100$ approx for the vband discharge </TD></TR></TABLE>

the vband option from ATP turbo is 50 dollars

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93supercoupe &raquo;</TD></TR><TR><TD CLASS="quote">So no one has a solid answers w/ numbers of even expeirence???

Im going to call around later this week and find the answer out.</TD></TR></TABLE>

what kind of numbers are you looking for???nobody's going to do a dyno comparison, thats stupid...if you were to get a 3" vband adapter for the 2.5" it would be the same as a straight 3" vband.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mykizism &raquo;</TD></TR><TR><TD CLASS="quote">

the vband option from ATP turbo is 50 dollars</TD></TR></TABLE>

yea.. and by buying that 50$ adapter, i saved myself over 350 US for the Vband turbo...

 

prices have come down a lot in the last year. precisions prices on the 35r are not helping the customers out at all. a straight garrett can be had much cheaper now. i got my 35r from precision a year ago specifically with the garrett hot side for the 3" outlet. it just makes sense.

 

I think your confused. Both are 2.5" discharge from the turbine wheel, just the one with the GT style housing "cones" to 3". You can do the same with the 2.5" in the downpipe. You can see a good pics of the GT housing in Quickgti1.8t's pics.

 

There's enough 'meat' on the 2.5" flange to get away with cutting a 2.5-3" flare in half, and essentially running ~2.75" to 3", and a full 3" DP. THe diff with the housing is its cast in. Regardless, the turbine wheel doesn't change, and that's what matters the most.

 

Those are some answers i was looking for, im getting ready to sell and some people think that the differnce between the 2 makes a signifigant difference, and it doesnt.


The Garret just "cones" to 3inch, and the wheel size IS most important.

I just needed other peoples opinion.

 

Its the same thing man. Are you going to run a 3" DP? I'll assume - yes. The GT just expands the 2.5 -&gt; 3". and the other is just 2.5" where you would expand it to 2.5" -&gt; 3" for your downpipe anyways. That part is just built into the GT housing. It doesnt make a difference.