Jump to content
SAU Community

Recommended Posts

Hey there guys,ive done searches on SDU and on here (yes read the Rb26 dyno figures with mods sticky thrice!) and need a little of your help.

I've got a R32 GTR (135K ks on the motor) with stock turbos running at 10psi.

Mods are

Bigger fuel pump (unknown spec)

Larger cams (also unknown spec)

ARC intercooler with 3inch HKS piping(handles up to 1000ps)

Piggyback ECU

full rollcage

tein suspension (circuit spec)

N1 oil pump and aftermarket crank collar

and katimoto (or kakitomo..lol,dont remember the name correctly)3inch exhaust.

HKS electronic boost controller (not plugged in)

Im possibly looking for more power (if it wont cost too much) and found a pair of HKS2530s for sale..What would be the most MINIMAL mods to support those turbos(I plan not to run them to high boost to maintain reliability).

I know for a fact the injectors would be maxed..so SARD 700cc injectors are needed.Possibly a powerfc?Or can I tune the piggyback?(dont know much about them)And would I need an aftermarket manifold?

And would the gearbox need strengthening? (as ive read the 3rd gear becomes a worry with the car having more than 450hp)

Anyway Id appreciate it if anyone could just offer some advice..

Link to comment
https://www.sau.com.au/forums/topic/122860-basic-support-mods-for-2530s/
Share on other sites

Definately injectors, and some dump pipes and front pipes while your at it if the budget allows.

Power FC if the piggy back can't be tuned.

Treat your gbox with respect and give it new oil and hopefully it should last okay.

Got a decent clutch???

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hi Guys, Does anyone know any aftermarket part numbers for a starter motor to suit the VQ25DET? I can find lots of alternative part number for the VQ35DE, which I assume would fit, but there is a lot of conflicting information out there. Thanks..
    • I don't understand how this hasn't boiled down to - Upgrade the turbo when you have everything required. ECU, injectors, fuel pump, turbo, etc. Do it all at once.  If you don't have everything required, just enjoy the car as it is and keep saving up your pennies. 
    • Sounds like you've got an interesting adventure ahead here with local support if you have trouble! My guess is that, unboosted, you will be OK with a small upgrade like -9. What will happen is that once the stock ECU sees more airflow than it expects it will add a heap of fuel and pull a heap of timing to be safe because it can't understand how it could get that much air without there being an issue. You will see clouds of black smoke and it won't pull hard through the midrange and top end. So, overall it will be a bit frustrating but should be OK. If you are still nervous set the base timing back 2o through the CAS, but it will be even more sluggish everywhere. As said above through...this is not my guarantee your engine won't be blown into a million pieces, leaving you looking for very hard to find parts A better idea is get a computer with logging ASAP, wire in a wide band O2 sensor and a use remote tuner. I've done multiple cars this way and while it is not as good as a specific tune on a dyno they can get it 90% right. I'd suggest if you can afford an R33 GTR these days you can afford an ECU and tune. And if you can't afford that you sure won't be able to afford the rebuild if it goes bad in the meantime,.  
    • Yeah it would be nice if someone took the time to put that sort of information together, but there are a lot of variations in looms. I think you are making this way hard for yourself if you just want to get it running....sourcing an SR20 with the right wiring will be a billion times easier than matching the RB loom to an S15 chassis. If you do end up going this way, you just need to trace every wire in the loom with a multimeter, 95% of them will go to a location you can confirm at the ECU.....and then post it up for the next person who needs it  
    • Just top it up with water, and keep a general idea of how much you added. It is normal for water to be pushed into and pulled out of the reservoir through the cap, and it should not be more than half full or it will be likely to overflow when hot. Any decent mechanic can do a pressure test of the cooling system to confirm if you have a leak. Keep in mind if it is only leaking a little and when hot it may well evaporate before you see it hit the ground
×
×
  • Create New...