What Turbine Housings Do You Run On -5's ?

[rev210]

Just wondering if there are anyone who has played with both the larger 0.86 and the 0.64 AR housing for the -5's?

[Beer Baron]

most people would be running the .64 exhaust housing. same as 2530.

[bradsm87]

The .86 would be too big for that smallish compressor eg. the compressor side would max out before the turbine side. I reckon a couple of GT-RS's / -10's would make more power and be more responsive.

[GTR1993]

just picked up the regular combo of 0.64 rear -5s, have then on with built motor in about 2 months.

[rev210]

I've attached the turbine flow's for -5's .

The larger turbine housing might be a good ticket for an RB30.

-9's have this as an option too.

Edited December 24, 2008 by rev210

[discopotato03]

If you are talking about the Garrett 0.86 A/R GT28 BB turbine housing I think you'll find they are not the same style as RB26 specific GT28BB turbine housings .

Have a close look at RB26 style turbos on the turbobygarrett site , they tell you that the housings on these turbos are the "compact" style and are not intended really for any other app .

From memory the dump pipe flange is different and the housings neck aimed slightly differently from generic GT28 BB housings which are really aimed at SR20/CA18 type single apps .

I have not seen the 0.86 GT28 BB turbine housing machined to suit the turbine in the "-9" or RB26 type GTSS .

They should fit the SR20 type GTSS but that uses a different turbine to the GTR variant .

Cheers A .

[BoostdR]

.86A/R work very well on an Rb30 with GTRS's

we have seen

600nm & 620hp at 13psi (engine dyno)

They needed new dumps as they have the SR20 flange

[rev210]

.86A/R work very well on an Rb30 with GTRS's

we have seen

600nm & 620hp at 13psi (engine dyno)

They needed new dumps as they have the SR20 flange

Thats what I was looking for.

The 0.86 A/R I was thinking might be the go on the -5's with the RB30 even -9's.

[BoostdR]

yep, definately worth it. Making the dumps are a pain though.

This setup also used 150mm lengthened inlet runners (rb26) which also helped the torque figure become so square.

You put your foot down and it almost rips the seats from there mounts, lol

[rev210]

yep, definately worth it. Making the dumps are a pain though.

This setup also used 150mm lengthened inlet runners (rb26) which also helped the torque figure become so square.

You put your foot down and it almost rips the seats from there mounts, lol

Making the dumps isn't a big deal in the scheme of things, that sort of power delivery is something else.

Do you have any graph of the engine dyno to hand that you can post?