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

    • Hi everyone, I've been wrestling with this for a while now and have been trying to find out the cause. For context, the turbos used are Garrett 2860 -5s, the BOV is a BNR32 HKS SSQV IV kit, the car is currently tuned to ~470 whp on 17.5 psi. The car drives normally, pulls well when it doesn't happen, and I can replicate it fairly easily. It does not sound like turbo shuffle or flutter. The engine has only a thousand or so miles and has had this behavior since it was completed. After my engine was built for my R32 GTR, I noticed that the car now sometimes makes an air discharge sound on what appears to be positive boost pressure that sounds really similar to a BOV. I had thought that it was a BOV issue but even when replacing it with a brand new unit, the sound persisted. It seems like it's coming from the passenger side but I may be mistaken. The closest scenario I could find was this post here https://www.gtr.co.uk/threads/maybe-a-boost-leak-opinions.147955/https://www.gtr.co.uk/threads/maybe-a-boost-leak-opinions.147955/ started by @yakshii and it sounds very similar. As in, at partial throttle once I reach positive boost I begin to hear the same psh psh psh psh psh sound like air is leaking somewhere when I keep the throttle in the same position. It most commonly happens in 4th gear at around 3-3.5k RPM and 5th gear around 2.5-3k RPM, which seems to coincide with normal positive boost thresholds. It might be similar to what @Austrian GTR mentioned about his own HKS SSQV. Notable difference would be that when he applies more throttle when it happens, it stops. In my scenario if I apply more throttle during this repeated psh psh psh sound, the cadence of the sound gets faster and louder rather than stopping. If I lift off slightly and apply throttle again, it will normally stop and pull without issue. I've checked all rubber couplers to ensure that they are tight, but have not gotten the opportunity to properly do a pressurized boost leak test. If anyone has had similar experiences or thoughts on what might be the cause, I'd be very keen to hear them. I also have a video of it happening from inside the cabin, if that would make it easier to understand: https://youtu.be/2zqZXcx8jbA
    • I'd want at least $40K for mine, but thats easy to say cos I'm not selling anyway.
    • That's incorrect. We have 4 seasons, consisting of pre winter, winter, post winter and a small glimpse of hope! 
×
×
  • Create New...