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Rb30dett ? Any Exemple?

cobrAA

By cobrAA,
in Engines & Forced Induction

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cobrAA Mentor

cobrAA

Posted
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I currenctly have GT-SS on my RB26 with a os giken flywheel. Response is unbelivable. Lag doesn't exist for me.

I'm interesting in going rb30 because I want more torque. However, I don't want to go higher than 550whp because my tranny won't take it, clutch will wears too easily etc.

With that said, I went throught the 6 pages of rb30 dyno and I think I saw like 3 Twin turbo built.

Have you heard of any rb30 with twin -5, GT-SS, HKS 3510 ? what was the income?

Much appreciated!

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Nee-san Grand Master

Nee-san

Posted
Posted (edited)
I currenctly have GT-SS on my RB26 with a os giken flywheel. Response is unbelivable. Lag doesn't exist for me.

I'm interesting in going rb30 because I want more torque. However, I don't want to go higher than 550whp because my tranny won't take it, clutch will wears too easily etc.

With that said, I went throught the 6 pages of rb30 dyno and I think I saw like 3 Twin turbo built.

Have you heard of any rb30 with twin -5, GT-SS, HKS 3510 ? what was the income?

Much appreciated!

Check the Dyno threads for RB26 for an idea what the turbos will make.

GT-SS's will not make 550WHP on 98 Fuel, also these would be too small on a 3 litre bottom end.

-5's May* make this power and would be my choice for a streetable solution on a 3 litre bottom end.

Don't know enough about the 3510(s*) to comment.

* = depends on setup and head etc.

Politely Ask N1GTR about his setup (3L bottom end with GT-RS x 2 but now going to -5's)

Edited by Nee-san
RBceffy25 Rising Star

RBceffy25

Posted
Posted (edited)

My brother is in the process of building a RB30DETT. He will be using a set of rebuilt IHI turbo's from a twin turbo liberty or something. They were reportedly pulled from an RB30DETT making somewhere around 300rwkw with supporting mods. Really great, responsive turbo's if you can get your hands on 'em.

There is a thread on the net somewhere with a couple of backyard mechanics strapping a pair of them onto a stock 1jz with no form of boost control. They free boosted for around 6 months till they blew!

Edited by RBceffy25
BoostdR Mentor

BoostdR

Posted
Posted

The Rb30 will make mountains of torque with any turbo setup. I blew 12 gearbox's then put Redline gear oil in....haven't broken one since....plenty of power now to. see my signature block.

I fell GT-SS's will run out of puff very quickly on a 3ltr. -5's would be the smallest I would go....The starter motor would still bring them on boost...

PM-R33 Grand Master

PM-R33

Posted
Posted
The Rb30 will make mountains of torque with any turbo setup. I blew 12 gearbox's then put Redline gear oil in....haven't broken one since....plenty of power now to. see my signature block.

I fell GT-SS's will run out of puff very quickly on a 3ltr. -5's would be the smallest I would go....The starter motor would still bring them on boost...

12!!

My god!

Nee-san Grand Master

Nee-san

Posted
Posted
Yeah 3L is nice. GTSS on 3L with really high CR and E85 would be ultimate on twisty hillclimbs.

I get the feeling if you are using E85 + high CR on a 3 Litre then you might even be able to go bigger then GT-SS without sacrificing any response, thoughts ?

MrStabby Grand Master

MrStabby

Posted
Posted
I get the feeling if you are using E85 + high CR on a 3 Litre then you might even be able to go bigger then GT-SS without sacrificing any response, thoughts ?

You will have to loose response with -5s, bigger turbos will spool later. The question is; how much difference is it, and is it worth paying for a 3lt bottom end if you're only going to run SS's. Since you already have the SSs you could try it out - it would be interesting to see how it went. Next step up is -5s, and as you've said you'll really be wanting a stronger gearset if you go to high 300kws.

N1GTR Grand Master

N1GTR

Posted
Posted
I get the feeling if you are using E85 + high CR on a 3 Litre then you might even be able to go bigger then GT-SS without sacrificing any response, thoughts ?

Well the OP wants zero lag, that has to be the way to get it. That setup would be great for tight uphill courses, I wouldn't go that extreme though, I'd go -5's. It would be nice to try but like anything it's not exactly a cheap exercise! Plus the step back in kw would shit me

Ever driven a stock supra TT? There's so much response it's crazy but lacks the outright power, the OP is just trying to find the balance between power/torque/response like most of us here.

TiTAN Grand Master

TiTAN

Posted
Posted
Well the OP wants zero lag, that has to be the way to get it. That setup would be great for tight uphill courses, I wouldn't go that extreme though, I'd go -5's. It would be nice to try but like anything it's not exactly a cheap exercise! Plus the step back in kw would shit me

Ever driven a stock supra TT? There's so much response it's crazy but lacks the outright power, the OP is just trying to find the balance between power/torque/response like most of us here.

i would guess you get a similar result with that GT-SS + RB30 setup to Al's GT30 + RB30, just has power everywhere.

N1GTR Grand Master

N1GTR

Posted
Posted

If it does, then it's a great combo.

Al's car is seriously fun to drive, last I drove it it had exactly as you say power everywhere and not a lot of grip on the pan at deca. He may aswel forget using first gear, it's that good.

Nee-san Grand Master

Nee-san

Posted
Posted
Well the OP wants zero lag, that has to be the way to get it. That setup would be great for tight uphill courses, I wouldn't go that extreme though, I'd go -5's. It would be nice to try but like anything it's not exactly a cheap exercise! Plus the step back in kw would shit me

Ever driven a stock supra TT? There's so much response it's crazy but lacks the outright power, the OP is just trying to find the balance between power/torque/response like most of us here.

Nah never driven a supra.

Agree on the -5's perfect turbo for the job.

cobrAA Mentor

cobrAA

Posted
  • Author
Posted

Still trying to decide what I will do. maybe I should look for a stroker 2.8 instead.

Like I said, I'm used to my 400whp anti-lag GT-SS, I don't want to loose that. a couple friends and I went in the mountain and I must say, I had the quickest car-more fun to drive this day because of the gtss turbos.

Getting to 500whp would be sweet. I don't want to start swapping tranny every 2 months LOLLLL think my OS ts2b will be fine however.

UWISSH! Grand Master

UWISSH!

Posted
Posted
I blew 12 gearbox's then put Redline gear oil in....haven't broken one since....plenty of power now to. see my signature block.

surely after 2 you would think shit.. i might need something better than a standard box???

i didnt even wana find the limit of 1 so the plan was made early to put a better box in.

cost of 12 boxes somewhere near $9000+??? say at $800 per second hand box

OS giken gearset $6000 fully assembled

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