Jump to content
SAU Community

Recommended Posts

GDay,

Just thought i'd post up some updated photos of my car, as some people were interested last time. For those who dont know, its a 1997 RB26 with forged pistons, prepped rods, ARP fasteners throughout, all the usual oil control mods (sump baffles, N1 pump, restrictors), GT35 Turbo, Autronic SM4, Trust 4inch exhaust, 100mm intercooler etc. I also spent heaps of time making stainless heat shields to help reduce under bonnet temps. All the hot bits are also ceramic coated or wrapped (or both!).

I started it for the first time in about 2 years last week and all went really well. Although its untuned, it still starts off the key with no probs; the Autronic is well worth the money in my opinion.

Ive just got to clean up the Autronic wiring and wire in the Autronic boost controller. Im using a seperate solenoid and switches in the cabin so that i can select between 3 boost settings ranging from about 7psi to maybe 25psi. Then ill tow it to Silverwater Automotive where Dave will tune it for me.

Im hoping for about 330 to 350rwkw, but as long as its responsive i dont really care. I went for the 0.82 turbine housing, so it should be good on the street.

Im hearing a bit of reversion when revving, so i hope the housing isnt too small. i think the BOV (Tial) is a bit stiff due to no use for 2 years, so that should explain that. Does anyone have any experience with these turbos on my engine. Will it be too small??

Anyway, here's some photos.

post-11456-1143270501.jpg

post-11456-1143270577.jpg

post-11456-1143270646.jpg

post-11456-1143270704.jpg

post-11456-1143270739.jpg

post-11456-1143270793.jpg

post-11456-1143270844.jpg

post-11456-1143270886.jpg

post-11456-1143270918.jpg

post-11456-1143271382.jpg

post-11456-1143419047.jpg

post-11456-1143419174.jpg

Edited by Shaun

Yeah, wheel spin will be a problem. Oh well.

Im using a standard radiator with EF Falcon thermo fans that are mounted in front of the radiator, and i reversed the direction of rotation so that they push air thru the radiator. Theyre awesome. They push sooo much air. I spent heaps of time modifying the Falcon shroud and sealing the system though.

Mounting the engine is easy as. Youve just gotta use the RB20 engine mounts instead of the RB26 mounts. If using standard turbos, the oil return line fouls on the passenger side mount though.

Shaun.

What did you do about the front diff/sump etc?

The front diff was cut off and the front drive shaft holes were welded up. Tomie sump baffles are also used. Then i used an RB25 gearbox with modified gearbox mount (the holes dont line up) and custom tail shaft. The shaft is custom because the RB25 yoke is bigger and the total length of the GB is also longer than the RB20 item.

how did you wire the thermos if you don't mind me asking? :D and what shroud did you use?

The Autronic has an output for thermos, so my friend who is an Autronic wiz wired them in for me. Electronics is the only area where im a dumb arse, so i let him do it for me. You can even stagger the fans so that one comes on at one temperature and the other comes on at another. Anyway, he said its a simple job if you know what youre doing. Sorry i dont have specifics.

I just bought some Falcon (EF?) thermos from a wreckers and extensively modified the falcon shroud to fit in front of the radiator with the A/C removed. Youve really got to make sure the whole system is sealed so that no air can get around the radiator. They work great.

I'm currently running a single EF thermo with a big radiator and it goes fine :thumbsup:. Was more interested in the specifics which you answered :). I wonder does a powerfc have similar thermofan controls?

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

    • 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
    • I'd ask the shop what they used and use that. Mixing coolants is sometimes OK, sometimes not, and you have know the details of each coolant to know whether it's a good idea or not.
    • Is it alright to top up with just another green coolant?
×
×
  • Create New...