Whats your opinion about the GT3540

[The Real Roadrunner]

i would never restrict the amount of oil that can get to a turbo, it makes no sense as to why you would do it, if anything just make sure you can drain the oil away quickly/efficiently enough so it doesnt want to go out the seals.

cheers
linden

[ATMO_BT1]

so you don't think excessive oil pressure can damage the bearings?

[1JZ.747]

i honestly think linden GCG are great with part numbers but arent great with turbo information. my next turbo wont be purchased from there, the last 3 have but u have generally found them un helpful

i will be goign mr turbo from now on.

[The Real Roadrunner]

im not saying GCG are shit as they sell great products etc and i use them often but at the end of the day they're either sales ppl or fitter machinists that work there,now i should say that this is not just GCG but MANY different turbo resellers, the only info they can really tell you is what other ppl experienced with each turbo once installed which would really be classed as heresay.

now this is not there fault or a reason not to use them becoz they're only really handing over a product built by somebody else and whoever is purchasing something off them should have done there research to know what part is right to get the desired result.

i dont believe excessive oil pressure can damage bearings in any way but it can blow seals out in which case as stated the drain isn't correct for the job.

the only way you can really damage bearings in the late model GT series is by 1 overspeeding them (not common in large frames) or 2 not giving them enough oil, its a hardened roller bearing inside so i cant see how excessive oil pressure will hurt it!

cheers
linden

[ATMO_BT1]

Thankyou guys, i am looking at fitting a Mr Turbo Z-P (essentially a t04z) next.

[Danners]

Thankyou guys, i am looking at fitting a Mr Turbo Z-P (essentially a t04z) next.

Do they have a website? I can't seem to find one

I'm also looking into a new ball bearing turbo for my car and i'm feeling some mixed responses in this thread! I'm an absolute turbo noob, and don't really understand exhaust housings, trims yet.

I'd like to acheive 300rwkw's out of my 1J setup and want it to be really really streetable, with the occasional track and drag work.... but as a daily driver i'd like to keep it as lag free as possible. Most of you seem to recommend the GT35R with .8x housing? (how many 0.8 variants are there?)

Trying to learn!

[The Real Roadrunner]

300kw streeter with minimal lag GT3076r with a .82 rear but it wont leave you with a lot of room for improvement above 300rwkw.

anthying more than 350rwkw the GT3582r with a .82 for street and track or a 1.06 for drag would be the go.

these figures could go up or down slightly depending on tune, dyno, supporting mods etc but are a good rough guide.

cheers
linden

[Smokey228]

Dude, please edit your previous post, and remove

the occasional drag at the lights

Maybe change it to, drag at the very much legal drag strip?

Anyway, i want 250-300 as streetable as acheivable and i am going to go the gt3582 which has the .82 rear. I dont know if it will get me there, but we'll see...
If it goes beyond, well i have no interest in anymore than 250 really. but 300 will be cool for dyno and showing off at the strip

Cheers,
Jase

[ATMO_BT1]

Do they have a website? I can't seem to find one

I'm also looking into a new ball bearing turbo for my car and i'm feeling some mixed responses in this thread! I'm an absolute turbo noob, and don't really understand exhaust housings, trims yet.

I'd like to acheive 300rwkw's out of my 1J setup and want it to be really really streetable, with the occasional drag at the lights and maybe some track and drag work.... but as a daily driver i'd like to keep it as lag free as possible. Most of you seem to recommend the GT35R with .8x housing? (how many 0.8 variants are there?)

Trying to learn!

www.billetturbochargers.com

GT series turbochargers have only one .8x size and that's .82, some T04 flanged turbos have others although T04 style turbos seem to have alot more housing options in general.

PS The R-GTV is similar to the GT35 on the Mr Turbo / Billet Turbochargers website.

[ATMO_BT1]

Ok guys for size comparions and HP difference i made 20rwhp more on 17psi with the 3582r than i did with the 3082r last night... I can't pick any difference in lag at all, feels like the same turbo just a bit more up top.

[Smokey228]

Good to hear Jack...!

What power are you actualy making now?
And did you do any power runs with lots of boost? Or just tuned it..?

Cheers,
Jase

[ATMO_BT1]

just ran it on Anthony's dyno took a bit of timing out and the mixtures were all sweet. Sits around 11.0 and +13deg on wot and full boost full revs so that's safe as anything.. i hope!

Still only on 340rwhp @ 17psi we can't work out where it is loosing power, i'm going to upsize the cam big time and swap for a smaller plenum after christmas.. it should be making 80 or so rwhp more than it is now.

[The Real Roadrunner]

what size housings on both turbos? for comparison for you my mates vl turbo runs a 3582 evuivalent and makes 296rwkw on 16psi (7psi spring in the gate so needing a new one) with just a cooler, plenum, injectors, ecu, stage 1 camtech cam and 3.5inch exhaust.

just be carefull with your cam selection as i have seen cars lose power if everything else isn't there to support it.

cheers
linden

[ATMO_BT1]

what size housings on both turbos? for comparison for you my mates vl turbo runs a 3582 evuivalent and makes 296rwkw on 16psi (7psi spring in the gate so needing a new one) with just a cooler, plenum, injectors, ecu, stage 1 camtech cam and 3.5inch exhaust.

just be carefull with your cam selection as i have seen cars lose power if everything else isn't there to support it.

cheers
linden

Mine has the 3582 .70 .82 plus all the supporting gear (manifold, tial gate, built bottom end, ported head, camtech stage 2 1/2 type custom cam, aftermarket plenum, ecu, 550cc injectors, msd ignition) i've been told that the cam might be a bit of a dud and if i stepped the cam up a bit and perhaps swapped for a smaller intake manifold (huge NIZPRO one on there now) it could pick up 100rwhp no worries.

That is a conservative dyno though.

[whatthe?]

for comparison for you my mates vl turbo runs a 3582

You're claiming maverick (aka DJ Maverick) as a mate? Times must be tough....