aftermarket turbos

[skyline33t]

Just like to know what turbos you people have in your skylines? What do you think is the best low-mount turbo for a rb25det. I have been told the best for a street application would be the HKS GT2535. What are your oppinions? Does this turbo bolt straight on, if not what do i have to do to get it in? Looking forward to your reply's. Thanks!!!

[aKTiVE]

what sort of power do u want to make? or what sort of times do u want to run?

[skyline33t]

I am looking at making between 220 and 250 rwkw. I want it for street use not drag use so the less lag the better. Any other people in here have these turbo's on an R33?

[aKTiVE]

a friend has a hiflowed T3 with steel wheels (sierra cut back)

i drove that last night, makes boost early in the rev range and holds it to red line. Great set up. It also makes the same power your looking at acheiving.

[skyline33t]

Thanks aktive. Will that be better option than the 2535? I dont mind spending the $$$ as i would rather get something good and reliable than just a tempory fix. Anyone have a HKS2535? Can u post up the mods you have and the power you are getting.. Thanks.

[aKTiVE]

hrmm, i think either one is sufficient for the amount of power you want to make... i would consult a turbo specialist on what the best turbo set up for your price range is.

i am just talking from experience with my friends Hiflowed T3, that worked a treat.

Hopefully someone with a 2535 will comment on that turbo and its advantages! =)

[SeriesIIGTST]

I have an HKS 2535. Just got it put on. Had fuelling problems when i went to the dyno so couldn't wind past 7psi but was getting 180rwkw at that boost level. Have just received my adjustable fuel pressure regulator and expecting a Z32 AFM and will post results when i get them. I have wound the boost up to 1.1 bar and it hits that by 3,300 rpm and pulls very nicely indeed. I hit boost cut at 1.15 bar at about 4,000rpm the other day which is my airflow meter maxing out at 5v which on an R33 happens about 220rwkw so this turbo should easily see you to your desired power level.

As for installation, it bolts straight on to your exhaust manifold, dump pipe, AFM pipe and with the supplied elbow, to your intercooler pipe too. I got the GT Sports Turbine Kit which came with braided hose for the oil line and new replacement piping for the water lines. Hope that helps.

[SeriesIIGTST]

oh, you wanted mods too...

When I finally get my power run again I will have:

Trust FMIC, Z32 AFM, Bosch 910 fuel pump, Nismo adjustable FPR, full exhaust, Trust Ex Cam Gear, S-AFCII, Blitz EBC and rebuilt engine with forged pistons.

[deano_82]

what did that 2535 kit cost you???

[SeriesIIGTST]

You have PM deano_82...don't really want to disclose on public forum.

[aKTiVE]

SeriesIIGTST: Nice work! i'll be keen to know your results when u get them. Are u still running standard ECU?? or power FC?

[skyline33t]

I think he has safc 2. Thanks a lot for the info. I have everything but forgies... Will i need them if i am only running approx 12 psi? Dont want to blow my motor again. Can i make around 220rwkw @ 12 psi?

[aKTiVE]

you should be fine, so long as your engine has sufficient compression and when your running 12psi it isnt leaning out/detonating etc...

invest in a dyno tune from somewhere that is renouned for tuning properly.

Reliability is the key!

Nothing sh1ts me more than when someone tells me they have 200+ rwkw and have their standard injectors maxed out etc etc. Thats just not cricket.

[skyline33t]

Reliability is the key!

Nothing sh1ts me more than when someone tells me they have 200+ rwkw and have their standard injectors maxed out etc etc.  Thats just not cricket.

Exactly!!! I will have a power FC so as far as that goes it can be tuned accordingly. I hate when i go to shops (no names) and the guys there tell me that i can get easily 270 rwkw from my standard engine without problems. I think that is total crap! Can do it but it will probably last about 2 months or so, then the problems will arise. Anyone here have that kind of power with standard internals? Just like to hear about it?

[swalesy]

i am attempting to put on a t3/t4-super t 70 on mine all i can say it is ***ing huge 1700 it cost brand newcop a look at the specs.....shaft and wheel trim64.5 mm -compressor wheel super70 60.5mm -turbine housinga/r84.-compressor housinga/rratio.70... supposed to be capable of 650 hp can any one who knows what they are doing tell me the go and what mods/ lag ect i will expect

[benm]

I hate when i go to shops (no names) and the guys there tell me that i can get easily 270 rwkw from my standard engine without problems. I think that is total crap! Can do it but it will probably last about 2 months or so, then the problems will arise. Anyone here have that kind of power with standard internals? Just like to hear about it?

Your engine will last with 270rwkw on standard internals, I know of several cars that have lasted over 6mths each after being very heavily murdered with much more than 270rwkw. It all depends on your tune

[Guest INASNT]

Your engine will last with 270rwkw on standard internals, I know of several cars that have lasted over 6mths each after being very heavily murdered with much more than 270rwkw. It all depends on your tune

It depends on the tune and how u drive. If u drive like a tool all the time at full throttle then ur engine wont live long.

Mine has lived with over 300rwkw high boost and 260rwkw low boost for about 2 months now without any problems.

[Steve]

Fuel seems to be the problem IMHO. Alot of people try and stretch the stock injectors to places they just werent meant to go. All that I know of who upgrade the injectors and dont chase every last kw, have had no dramas.

Personally I wouldnt really want to chance it (well I didnt chance it). If you upgrade the injectors as you fit a bigger turbo you will be safe - with a good tune. Cheaper than a rebuild - infact cheaper than a set of forgies:)

I have over 300 in a daily driven RB25, running over 20psi no problems - stock internals. the JMS R33 had over 300rwkw with stock bottom end too, and that gets caned - still going strong.

[croat]

I want to do everything properly, no short cuts. What would be the best size injectors for this application? Where do you suggest to get the car tuned at? I heard that Croydon Racing is the best but they charge an arm and a leg! I think it was like $700! Any other good places?

[R32Big_boy]

Look at seris V rx7 injectors, they are 550's and the right impedance. They shouldnt be much more than $50 each, just get them checked out before putting them in.