GT35R Journal Bearing?
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GT35R Journal Bearing?
My friend bought this turbo and never used it and ended up getting a ball bearing GT35R for his evo instead so he said he'd sell me it for $350...
Here's what he said about it:
The specs are generally identical to a normal gt35r turbo, it has a .70 ar compressor housing with a t31 turbine housing for compact engine bays which is .63 ar not ball bearing but a regular 360 journal thrust bearing but you can upgrade the chra to a full steel ball bearing if you want,
And he said it was both water and oil cooled if that matters.
So my questions are:
Is it a good deal?
What kind of power/spool can I expect with it?
I'm currently running a BNR stage 3 turbo with a 3" all the way to 2.25" duals (Greddy Power Extreme).2.5" intercooler piping to a nice big front mount. Microtech lt8s ems, stripped emissions, a/c, ps, etc...
I dynoed 300rwhp @ 11psi with exhaust leak, intercooler leak, ignition breakup..
Fixed all that but had to switch to a stock exhaust manifold (SSAC had small cracks ) and still can't get anymore than 14.5psi out of it with the adjustable wastegate spring..to top it all off I don't get peak boost til nearly 4000rpm....
So I'm looking for something with quicker if not the same spool and more power. If this isn't that great of a turbo I'll just end up getting a Masterpower T70 instead...so yeah opinions? facts?
Here's what he said about it:
The specs are generally identical to a normal gt35r turbo, it has a .70 ar compressor housing with a t31 turbine housing for compact engine bays which is .63 ar not ball bearing but a regular 360 journal thrust bearing but you can upgrade the chra to a full steel ball bearing if you want,
And he said it was both water and oil cooled if that matters.
So my questions are:
Is it a good deal?
What kind of power/spool can I expect with it?
I'm currently running a BNR stage 3 turbo with a 3" all the way to 2.25" duals (Greddy Power Extreme).2.5" intercooler piping to a nice big front mount. Microtech lt8s ems, stripped emissions, a/c, ps, etc...
I dynoed 300rwhp @ 11psi with exhaust leak, intercooler leak, ignition breakup..
Fixed all that but had to switch to a stock exhaust manifold (SSAC had small cracks ) and still can't get anymore than 14.5psi out of it with the adjustable wastegate spring..to top it all off I don't get peak boost til nearly 4000rpm....
So I'm looking for something with quicker if not the same spool and more power. If this isn't that great of a turbo I'll just end up getting a Masterpower T70 instead...so yeah opinions? facts?
#2
Crash Auto?Fix Auto.
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I've got an aspec version of the GT35r in plain bearing form. They call it the GT3574. It supposdely has a slightly different turbine but I really don't know to be honest.
IMO, the turbo will work well - but not with that turbine housing as its much too small. I also don't know if the turbine wheel in that plain bearing, garrett standard, turbo would be smaller then a regular p trim or not but if it is smaller.....I wouldn't use it.
But $350 for that turbo brand new is a smoking deal. Buy another housing for ~$150 if the turbine wheel isn't too small and you'd have a decent little turbo for around $500.
IMO, the turbo will work well - but not with that turbine housing as its much too small. I also don't know if the turbine wheel in that plain bearing, garrett standard, turbo would be smaller then a regular p trim or not but if it is smaller.....I wouldn't use it.
But $350 for that turbo brand new is a smoking deal. Buy another housing for ~$150 if the turbine wheel isn't too small and you'd have a decent little turbo for around $500.
#3
Just in time to die
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The only "GT35" from garrett would be a 3571 it runs a much smaller compressor at 51/71, other than that I would question what turbo it is. The 3574 we make runs the 35 "R" 61/82 comp wheel mated to a 74mm turbine, water cooled CHRA non-BB.
Classic hows the turbo working out for you?
Classic hows the turbo working out for you?
#4
wannaspeed.com
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the .63 a/r is too small as mentioned. you need at least a .83 or so on a rotary. And obviously it wont spool as quickly as a gt35 BB. But even if you change the housing to a t4 exhaust housing with a larger a/r (.83-1.06) you should see full boost by 4000. and be able to get 360-400hp at around 15 psi. on stock ports (just guessing) and Provided it has a similar flow map as the BB gt 35
#7
Crash Auto?Fix Auto.
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Really, really excellent. I moved from a T04-R to this turbo and its working very well. Transient response was much quicker, although the R seemed to pack a little more punch at lower boost levels. They're probably terrible to compare back to back given the huge differences between them (plus I ran a 1.00 on the old one vs. .84 on yours) but nonetheless....thats my story and I'm sticking to it
To be honest, in comparison to a local's FD who runs a BB GT35R, my plain bearing (a-spec version) is almost identical in response, although mine holds boost a little farther up as the FD is running a .81 open valute and peels off 3-4psi (from 15) by 8500rpm
To be honest, in comparison to a local's FD who runs a BB GT35R, my plain bearing (a-spec version) is almost identical in response, although mine holds boost a little farther up as the FD is running a .81 open valute and peels off 3-4psi (from 15) by 8500rpm
Last edited by classicauto; 10-24-08 at 04:28 PM.
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I'll look into the brand and such that it is.. just haven't had the chance to stop by his house and get some pics. I had a feeling the hotside was a bit small since I watched 3 friends get T70s with small exhaust housings and post lower numbers than my BNR but when they threw on he .96 They put down 400+
I'll check out his turbo..assuming I do get a bigger hotside and end up with the turbo for $500 total cost, how does it compare to the T70? I know my friends are running their T70 at a little over 15 psi, but none of them have meth/water injection like I do. Anyways they are putting down around 400 rwhp and get 15 psi at or before 4k rpms with streetports. Would that mean I can get more power from a T70 than this GT35R?
Thanks
-Nick
I'll check out his turbo..assuming I do get a bigger hotside and end up with the turbo for $500 total cost, how does it compare to the T70? I know my friends are running their T70 at a little over 15 psi, but none of them have meth/water injection like I do. Anyways they are putting down around 400 rwhp and get 15 psi at or before 4k rpms with streetports. Would that mean I can get more power from a T70 than this GT35R?
Thanks
-Nick
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