Jump to content
SAU Community

Recommended Posts

  • 2 weeks later...

Basically been right through the car.

Had a small amount of rust in the front of the chassis.

That was cutout and plated with the whole underneath of the car proofcoated before the car was complied and licensed.

All new suspension with Koni shocks and king springs.

Selby swaybars

Bigger turbo with front mount intercooler and Autronic computer.

Retrimmed interior with WRX seats

Heaps of other things that I've forgotten over the last 2 years :)

  • 4 months later...

WOW, what a difference a tuner makes.

After the new turbo and autronic fitting dramas I was never that happy with the performance of the car.

Something was just not right but the tuner assured me it was as good as it could be.

It was running out of injectors and needed upgrading so that limited the power to 220rwhp.

The power was OK but the delivery was woefull.

Problem was that changing from first to second near the redline resulted in some lag until the revs built up again.

It was not really pleasant to drive that way and made it difficult to use in the tight circuit as per the above youtube video.

So the car has been sitting in my Son in laws workshop since June as I have no space left at home (too many toys).

We changed the injectors and returned the car to the same tuning workshop (the tuner had loked the Autronic so I had to go back (another story))

Anyway the well renowned tuner only worked contract for the workshop and is unreliable. He started working on the tune encountered a problem then dissappeared for weeks at a time.

i asked the workshop to get their new tuner to look at it instead of waiting so he went right through the car and found a number of problems that the other guy had overlooked. First off the turbo actuator was not operating correctly , there was an issue with the timing causing the missfire that the other tuner walked away from. To the new tuners credit he rang Autronic over east and sought some advise and fixed the problem the supposed Autronic expert tuner couldn't.

Anyway the results are amazing. Not only was there a power increase ,when changing into second this beast tries to shred the tyres :O:):D

This car is so torquey now by comparision. Felt like a new car when I drove it back to my Son in Laws workshop.

He will service the car and we'll do a few other jobs over the next 2 weeks until his new house is finished and the DR gets a permenant home at his place. I can then house the DR or GTR at his place so I can get to drive which one I feel like.

So to summarise

Tuner 1 =220rwhp

Tuner 2 =288rwhp :P

The tuner got the car to post 320rwhp but backed it off at my request as he recommends an actuator change to a lower psi rating to control the boost better.

The engine is stock internally

I've fitted a KKR380 turbo and PI-1 intercooler.

http://www.streettuned.com.au/Forced-Induc...S/prod_462.html

http://www.otomoto.com.au/kkr/intercoolers/index.html

plus a Autronic SMC computer and keeping boost to 17psi.

The 288hp is just a number so not sure what you'll get on another dyno.

Main thing for me was going from 220 to 288hp on the same dyno

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

    • Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
    • I checked spark on all cylinders and they all visually have spark with the plug pulled and grounded, but plug 1 is the only one that fouled. This was a running swap that blew up and was rebuilt by a machine shop, put a new wiring specialties harness and did all gaskets, studs, and bolts while it was out.  compression is 135-150 across all cylinders. Aside from that from my understanding with the z32 ecu and maf the car should start regardless. The wiring for TPS and the dual 02 sensor/ dual knock sensor stuff shouldn’t actually stop the car from starting or even running well, (just slightly rich)  they just give fault codes. Car supposedly is supposed to start as long as you have z32 afm and ecu with the nistune base map and that’s info coming from a well known and trusted tuner who does a lot with SR/RB (Rsenthalpy). After more trouble shooting today where I’m at right now is that the cas is sending signal to the injectors they click while spinning the rotor, Fuel pressure is now set at 43psi, all cylinders have good compression and all of the plugs looked great (just wet with fuel) except for cylinder 1 which was very black (cylinder 1 has 150psi compression). all of the coils generate spark if pulled out and grounded out on the head. On the fuel pump car just pops into the exhaust. On starting fluid car will fire off. Hard to tell if all cylinders are firing off but definitley a couple. sounds like all of them but it’s only for 3-5 seconds hard to tell. 
×
×
  • Create New...