Hks 3037 Gtrs Or Hks 2835 Pro S On My R34 Gtt Rb25det Neo

[allthewaytotheskyline]

now here's the low down...ive been slowly collecting items for my r34gtt to bring it up to speed with everyone else here on this forum and start pumping some ponies out of it so to say.

thus far ive got: powerfc, bosch 040, z32 afm, splitfire coil packs,going to highflow my injectors to 600cc's, upgradting to a excedy hd sports tuff clutch (or can sum1 point me to a better one more suited for my application), hks oil cooler kit, hks exhaust cam gear,hks evc 4 electronic boost controller, exhaust temp gauge, boost gauge, oil temp gauge, oil pressure gauge, shorter shifter (btw i know it wont give it more kw) ;0P (ENGINE IS STANDARD INTERNALLY)

now at the moment ive only got bolted on only a large front mount intercooler and trust ti (titanium exhaust) otherwise all the parts listed above have no been installed and are just laying around waiting for me to get the turbo (ENGINE IS STANDARD INTERNALLY) and no boost has been put in other then standard factory boost it has top compression and has no faults with only 80,000k's

now im looking for no more then 290rwkw as from what ive read it wont be healthy for too long if i go further...plus its going to street driven plus the odd day on the track so im aiming for MINIMAL LAG AND MORE IMPORTANTLY RELIABILITY and POWER as i'd like to keep the car for a while and just have it as my weekender,

now from what i read and copious amounts of research i have come down to these 2 internally gated turbo options.

now its time to break the bank and buy the heart of the power my choices are between HKS 3037 GTRS KIT or the HKS 2835 PROS KIT?????????????

now can all you gurus tell me which you believe to suit my project the best.

(and no im not looking to rebuild the engine in the future to be honest, just enjoy the power and make sure its reliable)

"ALSO CAN SOMEONE RECOMMEND ME TO A SUITABLE TUNER IN SYDNEY"

BTW IM PERSONALLY SWAYING TO THE 2835 PRO S KIT...FOR THE DUMP AND LOWER BOOST TO HIGHER POWER INPUT.

THANKS A MILLION!

Bass.

Edited February 14, 2009 by allthewaytotheskyline

[discopotato03]

Bass , not sure about the "3037 GTRS" terminology .

The GT2835 and GT3037 Pro S turbos are good bolt on turbos for RB25 DETs , probably the best turbine housing and dump pipe you'll find for this frame size in the Jap aftermarket .

You can also buy in Garrett form a GT3076R turbo with a propper GT30 integral waste gate turbine housing but you have to chase up dump pipes and water/oil plumbing yourself if you go that way .

If you really want HKS and the integral wastegate then it'll have to be the GT3037 Pro S with the larger 0.87 A/R turbine housing option for your power ask .

I think the 0.87 GT2835 Pro S would be nicer most of the time on a street car .

Also BTW you don't really need 290 RWKW to keep up here , you can't out run radio waves so the wallopers will get you if use that sort of power frequently on the street .

I think Brett was right when he said most that aren't used to it auto defacate with 240+ RWKW on the street .

My 2c cheers A .

Edited February 14, 2009 by discopotato03

[PM-R33]

now its time to break the bank and buy the heart of the power my choices are between HKS 3037 GTRS KIT or the HKS 2835 PROS KIT?????????????

You are confusing yourself with two different turbos, the HKS 3037 and HKS GT-RS are different turbos.

[_Ryan_]

how's the EVC IV? i picked one up cheap but yet too install it...

[allthewaytotheskyline]

excuse me i meant hks gtrs and hks 2835 pro s

also "ryan1600" the evc 4 is great and holds boost like a dream and brings it on just right...also very easy to tune.

[_Ryan_]

excuse me i meant hks gtrs and hks 2835 pro s

also "ryan1600" the evc 4 is great and holds boost like a dream and brings it on just right...also very easy to tune.

sweet, could you PM me a photo of your solenoid setup if its not too much trouble? and did you remove the standard restrictor from the lines?

[allthewaytotheskyline]

ya know what i dont have any photos unfortunately..but i do have the pdf file for set up etc...i used the restrictors but they were just mini fuel filters...its really just to keep debree out of the stepper motor.

[PM-R33]

The Pro S and GT-RS cost a fortune at the moment. Go the Pro S if you can afford it.

[wolverine]

out of the two the HKS2835ProS is the better turbo for your aims but it sure is expensive compared to some locally sourced options that will reach your target.

ps. the exhaust cam gear will probably net you 0kw (on an RB25DET Neo). sell and spend your money on something else.

Edited February 15, 2009 by wolverine

[joeyjoejoejuniorshabadoo]

i have a 2835 pro s on an unopened 25...

the ex cam gear will actually lose you top end KW, but in exchange for better response...

i have 265rwkw with stock like turbo response

[wolverine]

is that on a R33 RB25DET or RB25DET Neo?

with an exhaust cam gear on my R33 (at or around 4 deg retarded) there is more mid and top (on my car) and certainly worthwhile trying cam gear changes when you have some dyno time.

for this thread we are talking RB25DET Neo. cam gear changes were a step backward on the S2 Stagea. the same as many other people have found here. there is some adjustment on the backside of the factory cam gear already btw but you need to take the gear off each time to change it.

Bass Junky has a good thread devoted to it, mind you that was a while ago so it may not have been read by more recent SAU'ers.

Edited February 15, 2009 by wolverine

[PM-R33]

Yeah RB25 neo and cam gears on stock cams is a waste. Kind of like Chris Brown getting woman bashing lessons.... *yeah i went there*

[_Ryan_]

check out a garret 3071r... should be the garret equivalent to a 2835, and ~half the price, just research the spec/trim

[allthewaytotheskyline]

hmmm..so should i or should i not use the exhaust cam gear, it will make a difference down low but does it really sacrifice top end.

[joeyjoejoejuniorshabadoo]

it can, if you want to set it up that way... you can bring the whole powerband down a few hundred RPM...

a 2835 pro s will still be making power @ 8k, so there's no real loss, except for dyno queen points....

i'd rather have 260rwkw from 3k-7k than 270rwkw from 4k-7k (example only)

i get just under 4000 revs of full boost with the rev limit @ 7100

in a street car i want response, not top end power which i why i went for an ex cam gear (greddy rb26 item) and stock cams. (transient response)

this is in a S1 33 rb25, but my mate has the exact same results on a NEO.

[allthewaytotheskyline]

understood loud and clear!

[lcy]

i get just under 4000 revs of full boost with the rev limit @ 7100

Full boost for your 2835 only kicks in under 4000 revs? hmmm... Thought it would come in sooner.

[PM-R33]

I think he means he has 4000rpm worth of full boost. So if he has his limiter at 7100rpm, he gets full boost around 3100rpm.

[Haines]

when are you on full boost phil ???

[allthewaytotheskyline]

whats the best quarter mile time you guys have gotten with the 2835 pro s kit