Which Bloody Turbo?

[SPOOLN]

Hi guys I tried searching the forums but to no avail. I need some advice on which of these two turbos to go for. Considering my goal is to reach 300rwkw and to minimize as much lag as possible. The turbo choices are either a GT3540 with a .82 rear or the internally gated GT3037 which has a .63 rear on it. The car is a R33gtst and the mods are as follows :-

standard internals

3 inch exhaust

tomei pon camshafts

FMIC

BOV

standard exhaust manifold

microtech comp

044 fuel pump

malpassi reg

surgetank

600cc injectors

plenum with 65mm throttle

Eboost2

I think thats everything. Well everything needed to support the turbo reaching 300rwkw is on the car. So come on guys whats your thoughts on these turbo choices or am i picking the wrong turbos for the job?

[paulr33]

rb30det and exhaust is too small

[SPOOLN]

Cannot go RB30DET I am sticking to the RB25DET. What do you mean about exhaust to small? On the turbo or the actual exhaust? A 3inch exhaust is more than enough.

Edited May 14, 2006 by SPOOLN

[paulr33]

any reasons for the parts youve chosen?

why microtech? i think youll find the 3" will kill the top end. for 300rwkw you really should have forged internals, as its beyond the limits for stock interals.some people have done it and been fine, and im sure there are others that have done it and its gone bang.

why plenum change? why bov change?

no signs of clutch, tyres, suspension and a good cold air intake

when do you expect the turbo to come on song?

what is "minimal lag" in your eyes. why did u choose 300rwkw? is there a particular goal? ie: 1/4 or something?

[R31Nismoid]

3" is not enough in reality.

Anyway, 3037 with .63 will not get you to 300rwkw

Why do you want 300rwkw? Any reason or does it sound cool in the pub?

But my search found a just a couple of results.

3037

http://www.skylinesaustralia.com/forums/in...c=55170&hl=3037

http://www.skylinesaustralia.com/forums/in...=105216&hl=3037

http://www.skylinesaustralia.com/forums/in...c=99091&hl=3037

http://www.skylinesaustralia.com/forums/in...c=94532&hl=3037

http://www.skylinesaustralia.com/forums/in...c=84840&hl=3037

http://www.skylinesaustralia.com/forums/in...showtopic=35888

http://www.skylinesaustralia.com/forums/in...topic=71226&hl=

http://www.skylinesaustralia.com/forums/in...topic=34855&hl=

http://www.skylinesaustralia.com/forums/in...topic=55462&hl=

3540

http://www.skylinesaustralia.com/forums/in...106033&hl=3540*

http://www.skylinesaustralia.com/forums/in...109125&hl=3540*

http://www.skylinesaustralia.com/forums/in...=63541&hl=3540*

http://www.skylinesaustralia.com/forums/in...=21041&hl=3540*

Upgrade threads (which are sticky incidentally:

http://www.skylinesaustralia.com/forums/in...=21041&hl=3540*

http://www.skylinesaustralia.com/forums/in...showtopic=55845

I mean this took around 3 mins.

I highly doubt the search button is broken again

If you take the time, there is loads more info which will tell you

300rwkw and minimal lag are not possible

cheers

[R31Nismoid]

ill probably lock it later spooln, not in the mood ATM, so have your say quickly

[discopotato03]

The HKS GT3037 Pro S integral gate turbos are available in .68 and .87 AR ratio turbine housings .

Garrett is supposed to be releasing .82 AR ratio integral gate housings for their GT30R and GT35R turbos in T3 flange ATM . The "right" GT30R Garrett has the same cartridge as HKS's GT3037 56T . Its unit number is 700382-12 - cheaper than a 3037 for essentially same thing . The common CHRA or cartridge part no is 700177-0007 or -5007 if you want to check .

The GT30R mentioned above will support 300Kw (400Hp) if everything else is suitable . The GT35R is more of a 600+Hp turbo in large (1.06AR) turbine housing form .

Cheers A .

Edited May 14, 2006 by discopotato03

[SPOOLN]

In reply to paul

-Microtech has been chosen due to my tuners excellent tuning abilities with this computer system.

-Have been told by exhaust specialist that 3" will be enough.

-I agree on the internal comment you make. I do not have the funds to strengthen the internals, if it goes bang I will take it from there. But I know of mates cars that have made more that 300 on stock internals.

-Plenum has been changed for more airflow and effiency. Also to reduce intercooler pipe length, which in turn reduces lag.

-Silly question from you here... BOV is a must for high psi applications or any PSI for that matter.

-tripple plate clutch is installed so no worries here.

-tyres and suspension are not relevant in making power on a dyno.

-Cold air intake is installed.

Thanks Paul

[SPOOLN]

R31

That info helped a little cheers

[Quinny]

Are you only interested in making power on the dyno? 300rwkw is not going to win you any dyno comps, so why bother? I beleive the current benchmark (at Summernats at least) is 680rwhp for a turbo 6.

If you are not going to drive or race the car, what is the point of having 300rwkw? Bragging rights at the pub have limited appeal...

[SPOOLN]

The HKS GT3037 Pro S integral gate turbos are available in .68 and .87 AR ratio turbine housings .

Garrett is supposed to be releasing .82 AR ratio integral gate housings for their GT30R and GT35R turbos in T3 flange ATM . The "right" GT30R Garrett has the same cartridge as HKS's GT3037 56T . Its unit number is 700382-12 - cheaper than a 3037 for essentially same thing . The common CHRA or cartridge part no is 700177-0007 or -5007 if you want to check .

The GT30R mentioned above will support 300Kw (400Hp) if everything else is suitable . The GT35R is more of a 600+Hp turbo in large (1.06AR) turbine housing form .

Cheers A .

Sorry didnt quite follow this. So you are saying that the internally gated GT3037 with a .63 rear will make 300rwkw with all the suporting mods?

[SPOOLN]

Are you only interested in making power on the dyno? 300rwkw is not going to win you any dyno comps, so why bother? I beleive the current benchmark (at Summernats at least) is 680rwhp for a turbo 6.

If you are not going to drive or race the car, what is the point of having 300rwkw? Bragging rights at the pub have limited appeal...

Quinny

This has nothing to do with bragging rights. The question is simple. I want 300rwkw that my figure not for bragging rights thats what i want. Which turbo out of the two is going to be the better choice. You guys get biatchy on these forums quick, lmfao.

[paulr33]

im with quinny, whats the point of the power only for dyno runs?

if you wanna use it on the street too, a well setup 250rwkw would easily beat you. on the street average power makes a car quick, not peak power

[R31Nismoid]

No, people are more sick of seeing the same question come up once a week.

You said thanks for the info, but i would doubt 100% that you have even read any of it.

Self help mate, i've given you the links, its your turn to start doing the reading.

People wont give you an answer as they have done so many many times in the threads that i have linked for you.

Go away and read em

cheers

[Quinny]

Quinny

This has nothing to do with bragging rights. The question is simple. I want 300rwkw that my figure not for bragging rights thats what i want. Which turbo out of the two is going to be the better choice. You guys get biatchy on these forums quick, lmfao.

I wasn't trying to be bitchy or trying to insult you, I was just intrigued by your comment:

"-tyres and suspension are not relevant in making power on a dyno."

I have been playing with performance V8s for a few years now, and have seen a few people who just like to have 300rwkw because it sounds good to tell your mates that you have that much power. Personally, I would rather aim for strip times rather than power figures.

[SPOOLN]

LOL, wake up. I read the posts you linked up and the information was vague to say the least. What is the point of having these forums if you cant even ask a question. Dissapointed to say the least.

[SPOOLN]

Quinny

I agree that tyres and suspension are a must for good times on the track. But thats not what this post was about. It was about which turbo would best suit making 300kw on the dyno. Once it makes that power i will run it mate. I want good ets as well.

Edited May 14, 2006 by SPOOLN

[paulr33]

you would be able to run a better ET with less power (smaller turbo = less lag) and more suitable turbocharger for average power.

what sort of ET do u want to run

[SPOOLN]

you would be able to run a better ET with less power (smaller turbo = less lag) and more suitable turbocharger for average power.

what sort of ET do u want to run

An 11 second pass would be nice paul. 300 was my figure because thats the kind of power you need to get an 11 do you agree? I dont think 250 rwkw in a manual would get you an 11 sec pass.

[paulr33]

yeah you could manage mid 11's on drag radials i would expect

depends, is stripping weight an option? is it a dedicated drag car only?

will it be street registered?