What aftermarket turbo are you running on your RB20DET

[oh to dream]

what is the pants off the seat feeling for a 2530 powered rb20? from what ive read off the forum it is definately the best turbo for this engine and pulls hard to the redline...8000rpm

[rb20-calais]

my power drops off at 6000rpm with 2530

Evan

[rbs13]

2535 is int gate and is avail in t3 flange so will bolt up.

[Cubes]

rb20-calais,

Is your power drop issue related to a boost drop over 6000rpm?

[omp]

T04/T3 Um 58mm front wheel, T04B front cover 3inch inlet, RX7 Core, RX7 steel wheel different T3 exhaust housing. On a mild tune 252rwhp (189rwkw) 11psi boost. Wanna run 15psi, maybe get 300rwhp?

[MM2death]

2530 here. Making around the 200rwkw mark @ 1 bar.

Mods in my sig.

My brother put a T04 on his 32 and is running a powerfc. Over 300rwhp. But when i drove it i noticed that 1st doesn't really boost at all and 2nd isn't much better. 3rd gear hang on lol.

Scott

[oh to dream]

mm2death- how hard does your r32 pull, what is your redline and when does boost come on? thanks in advance.

[makaveli]

I wonder what the HKS GT-RS turbo is like as its rated at 400hp and is supposed to spool up much faster than a 2540.

This is the turbo il probably save for in the future.

[Angry]

I'm lookin to update my turbo .. but i'm in two minds ..actually 3 minds on which one to select..

Help me out.

(sorry for hijacking thread a little)

HKS 2530

or

Garrett GT28R

or

Garrett GT RS (GT28RS) i think

i'm lookin to run 1.2bar ..and produce around 240rwkw

Are these capable of this? with injectors, ecu, fuel pump, cooler and cams?

thanks

Matt

[makaveli]

from what i know the gt rs is an update of the 2540, similar and made more responsive providing an extra 30 odd hp than the 2540 also.

I think the gt rs will do it

2530 would be close

not sure bout the gt28r

[MM2death]

mm2death- how hard does your r32 pull, what is your redline and when does boost come on? thanks in advance.

Yeah goes great. I've made a few people shit themselves...lol. But like with everything, you get used to it and then after no time at all you wanna go faster

Redline is about 8...not totally sure as i always shift at 7 the most. Boost hits fully at around 3500.

Cheers,

Scott

[Chris32]

Hmmm, this thread is interesting

I have always thought my turbo was a HKS GT2510. Due to the CHRA tag being un-helpful (no numbers that meant much) I have always taken the sellers (JMS) and the installers ( Tilbrooks ) word for it. Also has a HKS 1bar acuator (although it only gets it to 0.9bar ) and also has a cast HKS dump pipe

It bolts on, and is definatley a HKS 25 series from the housings etc, but looking a MM2deaths post, how you say full boost is at 3500rpm, I am now thinking differant

Mine makes 200rwkw at 0.9 bar, and full boost is from about 4500-4800rpm and pulls really well from there to the rev limit at 8200 rpm (re-mapped chip)

Any idea's? I am now thinking 2530 or 2535 perhaps?

Chris

[jnr32r]

Ive got a 2535 with 208rwkw @ 18psi. Full boost is at around 4000rpm

In a couple of weeks ill be trying the Rb26 cams with adj cam pulleys and another tune.

Im hoping for about 250rwkw @ 1.4bar.

[R31 POWER]

What mods have you got jnr32r if you don't mind.

[aybee]

from what i know the gt rs is an update of the 2540, similar and made  more responsive providing an extra 30 odd hp than the 2540 also.

i thought it was more closely related to the 2835 turbos. power between 2835 and 2835R, with slightly better response.

[oh to dream]

apparently the gt-rs was made to make up for the 2540's misbalanced turbine and compressor. so it gives around the same power but doesn't suffer the lag of the misbalanced 2540. hope that helps.

[tryha]

have run 12.15 @116mph with Garrett GT25 in Rb20 R32. havent been on a dyno. doesnt bolt on though, I used an adaptor plate.

[Sydneykid]

Hi guys, for what it’s worth, our RB20DET has a GCG ball bearing hi flow of the RB25DET standard turbo, makes 1 bar at 3,100 rpm, some boost at ~2,500 rpm (depending on load), has GTR cams, adj camshaft pulleys, std R33 GTR intercooler, split dump, no cat, 3.25” exhaust, Power FC with boost control kit, well tuned (not by me), 225rwkw at 6,900 rpm using 1.3 bar, power flattens over that but doesn’t drop off dramatically, revs to 8,250 rpm easily (needs shift light, badly).

The result is the sum of the parts, not just one single part. That means you won’t get a similar result (whether it is good or bad) just by choosing a turbo.

Hope that helps

[Roy]

Arghh, dead clutch...car still not on road...one day ill have a dyno figure and will be able to see if the extra agro is worth it over a 2530 of Hi-flow...

[MM2death]

Hmmm, this thread is interesting

I have always thought my turbo was a HKS GT2510. Due to the CHRA tag being un-helpful (no numbers that meant much) I have always taken the sellers (JMS) and the installers ( Tilbrooks ) word for it. Also has a HKS 1bar acuator (although it only gets it to 0.9bar ) and also has a cast HKS dump pipe

It bolts on, and is definatley a HKS 25 series from the housings etc, but looking a MM2deaths post, how you say full boost is at 3500rpm, I am now thinking differant

Mine makes 200rwkw at 0.9 bar, and full boost is from about 4500-4800rpm and pulls really well from there to the rev limit at 8200 rpm (re-mapped chip)

Any idea's? I am now thinking 2530 or 2535 perhaps?

Chris

Does the front look like this?

Scott