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13b S5 Turbo On Rb?

abu

By abu,
in Engines & Forced Induction

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abu Grand Master

abu

Posted
Posted

Hi

Did a little search and didn't get what I was after.

Has anyone used or is using a RX7 13B S5 turbo on there RB20/25 engine?

I'm curious as I don't think I have read of anyone using them.. They sell pretty cheap 2nd hand, and also high-flows go for a fairly decent price.

They are quiet a large turbo as the 13b turbo motors flow rate is roughly equivalent to a 4L piston engine.

I ask because I have a friend running one on his Falcon turbo, makes quick boost and a fair bit of power, 181rwkw on 8psi, but other than that, I haven't really seen anyone else running them except for the rotar boys.

S5 13b turbos are pretty popular once high flowed, quiet a few 13b motors running big power with them.

Any comments/feed back/experience would be appreciated.

Thanks,

Abu

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MANWHORE Grand Master

MANWHORE

Posted
Posted

There is no need to go for a 13b turbo with the price of rb20/25 turbos. They offer no benefits, are not straight bolt on. Neither are the highflows. You can get rb25 highflows for the same price as those 13b highflows.

As with all highflows, price dictates quality (generally). highflow is a word that is too easily thrown around. There can be as much variance from totally shit ---> best turbo in the world

MANWHORE Grand Master

MANWHORE

Posted
Posted

Have you seen the precision turbos group buy? 1100 - that's a pretty damn good price for a great turbo.

Anything cheaper that you see is probably not worth your money. You'll most likely have to pull it out again, and then buy a proper turbo to do it right the second time - that'll piss you off big time.

abu Grand Master

abu

Posted
  • Author
Posted
Have you seen the precision turbos group buy? 1100 - that's a pretty damn good price for a great turbo.

Anything cheaper that you see is probably not worth your money. You'll most likely have to pull it out again, and then buy a proper turbo to do it right the second time - that'll piss you off big time.

Yeah, I have seen those.

Been keeping an eye on the group buy. Do you have to provide your own turbo to get high flowed?

MANWHORE Grand Master

MANWHORE

Posted
Posted (edited)

Yes you do. If you like, i've got some rb25 turbos.

Do you have an rb25 turbo on your car atm? If you use mine, then that means that you'll have money left over if you sell yours - help offset the cost of the highflow (e.g. sell for 400-150 = 250 left over).

Going by this calculation, the total cost of your highflow project will be $850 :action-smiley-069:

Or if you don't have an rb25 turbo, you'll need to get one anyways

Edited by MANWHORE
abu Grand Master

abu

Posted
  • Author
Posted
Yes you do. If you like, i've got some rb25 turbos.

Do you have an rb25 turbo on your car atm? If you use mine, then that means that you'll have money left over if you sell yours - help offset the cost of the highflow (e.g. sell for 400-150 = 250 left over).

Going by this calculation, the total cost of your highflow project will be $850 :action-smiley-069:

Or if you don't have an rb25 turbo, you'll need to get one anyways

Na just got a standard RB20 turbo on my car at the moment.

Will have a think about it and see how I go, depends when the group buy will take off.

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

i once built a rx7 turbo for my rb30det. the specs was

RX7 Rear wheel and rx7 hitachi core rebuilt

VG30 .71 rear housing machined to suit

T04 front housing and wheel

The turbo was good.. it made 240rwkw on 17psi which was good and it came on really early and strong.. i miss that earlyness goodness.

it sounded mad but i wanted more power so went for gt3540

abu Grand Master

abu

Posted
  • Author
Posted
i once built a rx7 turbo for my rb30det. the specs was

RX7 Rear wheel and rx7 hitachi core rebuilt

VG30 .71 rear housing machined to suit

T04 front housing and wheel

The turbo was good.. it made 240rwkw on 17psi which was good and it came on really early and strong.. i miss that earlyness goodness.

it sounded mad but i wanted more power so went for gt3540

Damn thats pretty good!

W0rp3D Grand Master

W0rp3D

Posted
Posted

A standard S5 turbo has a 1.0 exhaust housing, a S4 on the other hand has a 0.84, from memory the fronts on both are the same, been a while since i researched it tho.

Definately worth spending a little more for a bolt on item, also remember that rotaries love boost so anyone that has paid good money for a high flow have started the boost at 15psi and wound it up from there.

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