hey guys

just a quick question, how do you reckon a garrett roller bearing turbo from an rb25 will go on the old 3L? would it be too small? its fed from both banks so that seems ok, just wanting some knowledgeable opinions.

cheers guys

It'd spool nice and quick, but your top end won't be as good as it could be... GT3035 would be a good turbo to run.

It will be too small. It'll continually be surging, and wil spool alost at idle. Sounds good, but it runs our of puff very wuick on a larger motor.

If you do want to use it, I'd recommend getting it hiflowed to suit a sL application.

what size turbo are the RB25 ones..????

pretty sure they have a T28, so wouldn't be a bad size for the 3.0, just slightly too small

It will be too small. It'll continually be surging, and wil spool alost at idle. Sounds good, but it runs our of puff very wuick on a larger motor.

If you do want to use it, I'd recommend getting it hiflowed to suit a sL application.



anyone know how much this would cost to do? it needs new oil seals but the bearings and turbines are fine so if i buy it a rebuild would be on the charts to replace the seal.

ive just sourced a set up using that turbo and it is fairly cheap...i'd love a turbo and this seems a viable option, but if not i'll just join the supercharger ranks lol

WWAAAAYYYY to small (and crappy).

Not to mention they wouldnt have the flow up top, and they have a ceramic turbine wheel... (EPIC fail). Oh, and the turbos used on the RB25 are NOT roller bearing...

You need at GT30 based turbo to be any good. Otherwise you are jsut restricting the car up...

Perhaps 2*R33 GTS-T turbos? (T28 based)?

Or even perhaps a EVO turbo (If you REALLY wanted to go a cheap turbo). They can hold 22psi...

Dude my cousin mods Evo's and has about 10 spare Mitsu turbos in his shed, keeps trying to convince me to put some on my Verada.

Could possibly hook you up if youre interested, he lives in Rutherford.

cheers man.

thought it was a little small but just wondered. ive just seen a set up including pipe work, intercooler + plumbing, pretty much everything bar flanges starting @ $500. so yeh it seemed a good start on the $10k budget lol.

Dude my cousin mods Evo's and has about 10 spare Mitsu turbos in his shed, keeps trying to convince me to put some on my Verada.

Could possibly hook you up if youre interested, he lives in Rutherford.

Does the evo use td04's?

cheers man.

thought it was a little small but just wondered. ive just seen a set up including pipe work, intercooler + plumbing, pretty much everything bar flanges starting @ $500. so yeh it seemed a good start on the $10k budget lol.

where how when please.

how about manifolds etc? got anything sorted?

Evo TD04 should work, a single TD04 can replace the twin TD03s on a 6A13TT, and like Tonba said 22psi no problem.

Does the evo use td04's?

I believe the early models of EVO used the TD04.

But all the later models (6~9) are based on a TD05 turbo.

The turbo on the 7~8 GSR's are a TD05-16G6-9.8cm & the turbo's used on the EVO 8 MR & EVO 9 are a TD05-16G6-10.5cm.

The EVO 8 MR & EVO 9 Turbos can run up to 1.6BAR without the air 'thrashing' too much, where as the 7~8 GSR's can only do 1.5BAR without the air 'thrashing'. Allthough this is said to be the limit of these turbos.

Evo TD04 should work, a single TD04 can replace the twin TD03s on a 6A13TT, and like Tonba said 22psi no problem.

22psi is NOT SAFE in a TD04 Turbo. Too small. It would heat the air too much and it would begin to cause the air to 'thrash'. No to mention surging would be a problem.

TD04 based turbos should be limited to 16~18 PSI.

where how when please.

how about manifolds etc? got anything sorted?


its a secret atm :P from what ive seen doesnt look like manifolds are, but all that pretty much is left is fuel management, engine management, intake pipes, afm and airfilter piping :P has intercooler and piping so might be worth it just for that alone. what u think?

Seriously,

Dont waste your time with these turbos.

Try a NEW Garrett GT3071R, GT3076R, GT3040R or a GT3540R...

Or if you really wanted to be cheap and different, How about keeping the stock headers, using two turbos from a R33 GTS-T (make sure they are in good condition & have no shaft play), get some dump & front pipes made up, alloy 'cold side' piping into a PWR barrel water-air intercooler, then get a Walbro 255L/HR fuel pump & Haltech E11V2 with boost controller module, and run a total of 8~10 PSI.

(oh, your going to need injectors)

Single R33 GTS-T turbo = Gay.

I believe the early models of EVO used the TD04.

But all the later models (6~9) are based on a TD05 turbo.

The turbo on the 7~8 GSR's are a TD05-16G6-9.8cm & the turbo's used on the EVO 8 MR & EVO 9 are a TD05-16G6-10.5cm.

The EVO 8 MR & EVO 9 Turbos can run up to 1.6BAR without the air 'thrashing' too much, where as the 7~8 GSR's can only do 1.5BAR without the air 'thrashing'. Allthough this is said to be the limit of these turbos.

sweet thats exactly what i wanted to hear.

I believe 9b's are the biggest td04 (td04 ->3000gt) good to run about 15psi from reading and thats big power in a TT set up.

Ppl have converted to TT td05's 16g's like you mentioned for massif numbers also.

The turbo on the 7~8 GSR's are a TD05-16G6-9.8cm & the turbo's used on the EVO 8 MR & EVO 9 are a TD05-16G6-10.5cm.



Can someone explain what all the numbers mean please?

decided to pull outta it and keep the money until i can afford to do everything new around october that way things are less likely to break :P

cheers guys

also, gas hed- i might have a chat to ur cousin about set ups etc if ya dont mind. even turbo technics dont wanna touch it

rb25 turbos are McKrud.

they are out of their depth at 12psi on a 2.5Ltr, the only advantage of using a cheap one is they are flanged T3 which is the common flange on most good aftermarket turbos, so swapsies after you get the whole shebang working to something in the GT30 range would be a pieceapie.

Still happen to believe a Td05 anything is too small for something 3.0L in displacement. At all stages of its operation the magna will be pushing 50percent more gas then an evo. By too small i mean not suited for the midrange grunt anything GT30 will have on top.

22psi is NOT SAFE in a TD04 Turbo. Too small. It would heat the air too much and it would begin to cause the air to 'thrash'. No to mention surging would be a problem.

TD04 based turbos should be limited to 16~18 PSI.No, true, but unless it was a pretty serious build there wouldn't be anywhere near that much boost anyway?

rb25 turbos are McKrud.

they are out of their depth at 12psi on a 2.5Ltr, the only advantage of using a cheap one is they are flanged T3 which is the common flange on most good aftermarket turbos, so swapsies after you get the whole shebang working to something in the GT30 range would be a pieceapie.

Still happen to believe a Td05 anything is too small for something 3.0L in displacement. At all stages of its operation the magna will be pushing 50percent more gas then an evo. By too small i mean not suited for the midrange grunt anything GT30 will have on top.


what about 2 of them on a 2.8L DOHC straight 6? 2 Valves per cyl, bore 86mm and stroke 78.8mm.

someone else has been searching ebay....

No, true, but unless it was a pretty serious build there wouldn't be anywhere near that much boost anyway?

I dont quite understand what you are trying to say here.

My EVO runs 18~19psi stock. At the moment It is running a 19psi low boost setting and a 22psi high boost setting, safely on standard internals.

A TD04 turbo will not run that kind of boost. They are a MUCH smaller turbo.

a 3076R .64 exh housing would be the pimpinest turbo for a 3L displacement, suited to midrange power/torque.

there are many turbo options available but you would struggle to find anything better for its price if going twin turbo then twin TD05's would be very nice, just get the smaller exhaust housing option of the evo 7-8 range, just to bring them on a little quicker being that they are a touch big.

a 3076R .64 exh housing would be the pimpinest turbo for a 3L displacement, suited to midrange power/torque.

there are many turbo options available but you would struggle to find anything better for its price if going twin turbo then twin TD05's would be very nice, just get the smaller exhaust housing option of the evo 7-8 range, just to bring them on a little quicker being that they are a touch big.

I'd be carefull with the Mitsubishi turbos though... they are not really effeicent untill 1.2~1.3 Bar of boost...

I know at around 15psi, my car feels like it is going no where... but as soon as it hit 20psi... LOOK OUT MOFO!!

*lol* Gosh turbos are good fun...

well the difference between 15psi and 20psi would be around 50hpATW id expect a car like an evo to be transformed by that.

if going a twin turbo route i would seriously suggest gettting 2 of the turbos used on an evo7, same as the nwerer ones with a smaller exhuast housing which will suit better a 3.0L V6. The engine will need to be rebuilt to take more then about 10psi but their relative size will mean good usable midrange torque, with plenty of head room down the track incase you get silly with a forged rebuild.

This is still the cheap option if you can get the turbos cheaply, but there are far better turbos out there to get to suit your specific application but be prepared to pay double per item.

the guy thats helping me with my build has 3 turbos hes not using, i was talking to him tonight about this. he is interested in selling them.

HOWEVER, as im unable to sell items on here as im a new member (thanx to snail paced verification email) anyone interested can pm me and ill put you onto him for pics and details.

if i'm not mistaken.. aren't the factory r33 gtst turbo's a t3?