Hks 2835

[Laurel20]

hey guys, i just got a HKS 2835 for my RB20, it has a .72 rear housing on it, just wondering how laggy you guys reckon it would be? is it too big? i also got a .68 housing with it but it needs some work before i can put it on...and my dump wont fit it...let me know what ya think, Cheers

[Justa32]

chuck on the big housing and let it rip

[STR8E180]

for a 2L engine they dont spool up turbo's very well

compared a RB20 to another 2L engine such as a SR20 and the SR20 is alot more responsive

if ur going to use a HKS 2835 i would highly recommend a .61 exhaust housing

if u cant get ur hands on the HKS .61 exhaust housing the garrett .63 exhaust housing will also fit

[abu]

Yep don't go any bigger than a .63 otherwise you will be waiting all day for it to come onto boost

[1400r]

baaah through it on and see

Ive got a feeling it will be on song by 4,000rpm

start making boost about 3-3.5 rpm

[Dale FZ1]

chuck on the big housing and let it rip

through it on and see

Ive got a feeling it will be on song by 4,000rpm

start making boost about 3-3.5 rpm

If you've got the gear to fit the 0.72 straight up, then give it a run. Don't aim to make the RB20 a low-down torque monster because it will just strangle things up high, where it should be able to shine. Search for threads/posts by Roy regarding the RB20 and turbo specs. Set up, and drive it for what it is - ie. not a RB25, or an SR20.

Sounds like you have an oddball pair of housings - Pro and Pro S perhaps? Some of them don't have the T3 flange, depending on the job they were intended to bolt up to. Might be worth checking that aspect, and post some pics if you can. Always interested to see how the HKS castings look.

[limpus]

Sounds like an interesting combo...lets see how it turns out...as mentioned the rb20 will never be good down low so make it count higher up in the rev range...keep us posted...

[Laurel20]

If you've got the gear to fit the 0.72 straight up, then give it a run. Don't aim to make the RB20 a low-down torque monster because it will just strangle things up high, where it should be able to shine. Search for threads/posts by Roy regarding the RB20 and turbo specs. Set up, and drive it for what it is - ie. not a RB25, or an SR20.

Sounds like you have an oddball pair of housings - Pro and Pro S perhaps? Some of them don't have the T3 flange, depending on the job they were intended to bolt up to. Might be worth checking that aspect, and post some pics if you can. Always interested to see how the HKS castings look.

yep is a pro s with a .72 'GARRET' rear housing, your right, 20's are so slow down low even with standard turbo, im gonna chuck it on an see how it goes, an if not ill put the .68 on, cant hurt in trying, if its on full boost by 4 ill be happy, keep you posted guys, cheers

[discopotato03]

The fact of the matter is that Garrett don't make a proper turbine housing for that turbine - in any form .

The one they do sell with the T28 flange is a bean counters botch job , bored out GT28 turbine housing that was not designed to work with a GT30 based turbine . Don't let the term "GT2835" fool you because there is NOTHING remotely GT28 about that turbocharger .

The "GT2835" Pro S turbos work best with HKS's housings - period . To use anything else IS a compromise not aimed at power or response .

If you want the best from it use your 0.68 A/R HKS housing because it was designed for your application .

I know it means another dump pipe and thats because their housing/dump combination works better than Nissans original system .

If the 0.71 A/R housing is what I think it is then it's a sort of copy of the Hitachi OP6 or single bb turbo VG30 - sort of .

GT30 based turbines will always give their best results when used in a GT30 based turbine housing .

IMO the HKS Pro S GT30 housing would have less restriction than the other probably aftermarket one even if its A/R number is lower .

A good example is this , Garrett's 0.86 A/R GT28 turbine housing won't outflow their 0.63 A/R T3 one . The A/R number is relevant to the turbine family that the housing is made for - nothing else .

Anyhow I'd use the HKS housing because its a known quantity and designed for the purpose .

Cheers A .