Gt35r Vs Garrett T04z - Discussion (just Post In This Thread To Create A Database)

[Lithium]

Running a 9 with a 0.86 GT35R in a 1500+kg car (GTR) ?

I've bought a GT35R, but even I find that pretty hard to believe.

I would have thought a high-10 was a stretch in a street GTR.

I quite deliberately never said GTR I am completely confident a street GTR would be able to do a 10 with a GT3582R though. Going by wrxkilla's 11.1 on 20psi on his first outing with it, imagine it running 25+psi on E85?

There are GTS25ts well in the 10s with them, I've myself been in a stock bottom end (so running "only" 20psi) R33 GTS25t which ran a 10.6 with full interior and pump gas on a .82a/r rear end and the main problem with it was that I couldn't get any real impression of its acceleration on the street as with the road tyres it would get the rears scuffing even rolling onto the throttle in 4th gear As soon as it past 4000rpm in the first 3 gears under heavy throttle it would flick to rev-limiter because it overcame the tyres so violently.

Edited January 15, 2009 by Lithium

[tommis85]

Interesting.....so I take it that's a couple of votes for the GT3582r then? Some very legit comments on the previous page about the T04z in drag racing.

[Bunta]

Fineline got pretty awesome results out of his 35R on a RB25, I was surprised by the response (full boost well under 4000) and the power was a bit over 500hp at the rears

[06tst]

Has anyone run a T04Z with a 0.70 exhaust housing? Just want to know what kind of power they can make and the response of them

[R31Nismoid]

I quite deliberately never said GTR I am completely confident a street GTR would be able to do a 10 with a GT3582R though. Going by wrxkilla's 11.1 on 20psi on his first outing with it, imagine it running 25+psi on E85?

There are GTS25ts well in the 10s with them, I've myself been in a stock bottom end (so running "only" 20psi) R33 GTS25t which ran a 10.6 with full interior and pump gas on a .82a/r rear end and the main problem with it was that I couldn't get any real impression of its acceleration on the street as with the road tyres it would get the rears scuffing even rolling onto the throttle in 4th gear As soon as it past 4000rpm in the first 3 gears under heavy throttle it would flick to rev-limiter because it overcame the tyres so violently.

Well considering you can get a R32 GTR to run a mid 11 on stock turbos... you'd feel a bit robbed if you couldnt get a GT35 equipped one to at least a second faster

[sky30]

I have GT35 with .82 exhuast on my R32 GTS4, ran 6.8 seconds @ 170kmh on the 1/8th mile, which is 10.4-10.5 sec 1/4 mile, Im pretty close to maxing out the .82 exh at 20psi- 397rwkw , with a 1.06 housing and 66mm comp wheel could probably run low 10 sec, but dont think you could go a 9, GTR is too heavy. Pretty sure ive seen lancers with gt35r run in the 9 sec.

Also the GT35 is definately not a laggier turbo than the T04z, mine makes full 20psi boost at 3200RPM (RB30/26).

[Dynamix]

Why not go an .63 a/r on the t04z, and upgrade it to the .82 or 102?/106? down the track when you want more power, just strapping on the turbo doesn't mean you'll have xx amount of boost at xx amount of rpm's, tune, cams, ecu, manifolds, cam gears can play big parts on how your turbo comes on boost, you can always tune it to come on smother, or come on vicious..

T517z's FTW! :(

[DCIEVE]

I find it interesting that how exciting the different turbo's are keeps coming up - having been in gtr's with equivalent sized twins the delivery is far more linear - (I'l try not to call a 450rwhp car boring). Then again the linear power delivery is no doubt what makes cars equipped with them so quick around the circuit.

The 35r is certainly angrier in its delivery, and the t04z moreso again - I guess most of you guys have 4wd so thats not an issue!

gt3076r gets my vote for what you want!!!

been in many a car with gt3582r, including sr's, rb25's, rb26's and 2jz's....

none have impressed me much at all, but someone told me nick was taking me for a lap at motorvation this weekend to prove me wrong

I wont be around till later in the year Jimmah should be there though? Pretty sure he's making a fair bit more than me with his 35r and in a drifter I'm thinking it'd be an interesting ride. I believe with traction it'd be a 130mph+ machine given sean reckons it has very similar top end to his rig.

[shanef]

something from leftfield, whats everyones longevity like with the gt35 or t04z?

[R31Nismoid]

Leftfield further - what's your terms of longevity?

Everyone has different ideas about one thing or another... but then when a 550rwkw motor can be torn down after years of track and be in excellent condition, it probably depends as much on the initial build than anything else?

Servicing, use of car, treatment etc etc all play parts

[shanef]

by longevity i mean how long do u go before your garrett turbo's bearing cartrige collapses? 6 months? 12months? shorter?

and im talking a street car making 500hp+ with track days, a bit of drag racing, and street duites

[Rezlo]

by longevity i mean how long do u go before your garrett turbo's bearing cartrige collapses? 6 months? 12months? shorter?

and im talking a street car making 500hp+ with track days, a bit of drag racing, and street duites

I have only ever seen 2 Garrett BB's fail,, one was due to a blocked oil line and one was from a melted WG hose that recorded a 3.9bar on his profec B before a nice chunk of piston took out the turbine wheel.'

Other than that with over 60 fitted and about 250sold in the last 4-5years ive never seen one fail without actual cause.

[shanef]

hmm ok

would having no oil restrictor and no oil feed filter cause premature bearing cartridge collapse? gt35r based question

[Rezlo]

Dont know, but i wouldnt want to try it without a restrictor,, I also never use those inline filters,,, if the motor runs a bearing I replace the oil feed line and restrictor as matter of course though... Cleaning the block's oil system when you build a motor is also critical

[R31Nismoid]

by longevity i mean how long do u go before your garrett turbo's bearing cartrige collapses? 6 months? 12months? shorter?

and im talking a street car making 500hp+ with track days, a bit of drag racing, and street duites

ye fair points/requirement.

Being the car (racepace's GTR) was a garrett/500rwkw or so - that only really saw track or hard hill km's, probably not too bad at all.

So no real 'daily' driving unless to/from the track.

But then I had a GT30 fail in less than 5,000km's on my own car due to "oil" issues, but then it was a fresh build and the subsequent rebuild didn't die and I changed nothing... so I just took that as a minor production problem out of the 10's of 1,000's they produce

[Lithium]

Well considering you can get a R32 GTR to run a mid 11 on stock turbos... you'd feel a bit robbed if you couldnt get a GT35 equipped one to at least a second faster

Holy cr*p can you? I actually struggle to believe that and I like to keep an open mind. I can help but figure you mean "high flowed stock turbos" as I have seen people do mid 11s on them but struggle to see it happen in a full weight GTR without spraying or something along those lines.

Oh yeah the cars I know of which have done 9s on GT35Rs are running 1.06 but are proper GT35Rs, not running 66mm compressor covers - and they are mostly Mitsis, but the point is they have to make good power and be able to pick up strong into each gear to do that.

[tommis85]

Hey all, who are running the bigger turbos - I have another question:

When you start out with the GT35r - what is a sensible boost level to run seeing that I don't have the bigger injectors or cams yet. Whats the sort of max boost level/air flow that you can run on the factory stock engine?

[2BNVS]

"Also the GT35 is definately not a laggier turbo than the T04z, mine makes full 20psi boost at 3200RPM (RB30/26)."

My 1.00 to4z isnt as bad as i thought then with 20psi at 3400rpm... will get dyno posted soon (26/30, 272deg cams)

"6BOOST was saying that the T04Z roller bearing spooled within 100rpm of the 35r and made more power. might be worth looking into since you already have a t4 flange manifold."

that quote was taken off calais forums

ben...

Edited January 15, 2009 by 2BNVS

[Lithium]

"Also the GT35 is definately not a laggier turbo than the T04z, mine makes full 20psi boost at 3200RPM (RB30/26)."

My 1.00 to4z isnt as bad as i thought then with 20psi at 3500rpm... will get dyno posted soon (26/30, 272deg cams)

The RB30 GTR I went in with a T04Z was laggier than that, but in real world terms definitely felt insane all around - if someone told you it was 1.5bar by 3500rpm you'd have no reason to doubt them

[bubba]

I have GT35 with .82 exhuast on my R32 GTS4, ran 6.8 seconds @ 170kmh on the 1/8th mile, which is 10.4-10.5 sec 1/4 mile, Im pretty close to maxing out the .82 exh at 20psi- 397rwkw , with a 1.06 housing and 66mm comp wheel could probably run low 10 sec, but dont think you could go a 9, GTR is too heavy. Pretty sure ive seen lancers with gt35r run in the 9 sec.

Also the GT35 is definately not a laggier turbo than the T04z, mine makes full 20psi boost at 3200RPM (RB30/26).

Wow! that makes me feel happy in my pants.. I'm only chasing 300rwkw to start with and hoping to make that at well under 1bar.. I know your head flows better but it still makes me all giddy