Jump to content
SAU Community

Recommended Posts

Ok ppls need some help and input.

Curently my gtr is lightly modded 300kw i use it for alot of hillclimbs and im one of the top contenders for the legend of the lakes hillclimb, 2007 i placed 3rd outright in my stock gtr so i spent the year pooring money into her for it to melt a piston the wk befor the 2008 hillclimb but still ran it up the hill on 5 cyl because i was in a bad mood and i placed 6th outright only 2 sec behind my 2007 run.

now new engine time and 400kw goal, in the next fortnight i will be taking the old engine out and placing in a forged beast with some bigger snails hangging of it. but in 2007 i remember getting wheel spin around the top corner of the climb front wheel spin! at speeds of 200kmh+ whick is a scary feeling but ya just hang on and clean ya undies at the top, the car was lifting the front left wheel of the ground so what should i do or what is needed to be done?

Front lsd in while engine is out?

Suspension work ie sway bars ect?

i already have tein coilovers, camber setup, dunlop slicks, chassi braces and roll cage bolt in 6 point but still std sway bars is this my issue, i really dont wanna put the engine in to fine out i should have got an lsd.

Edited by Travis Trayhern
Link to comment
https://www.sau.com.au/forums/topic/251133-front-lsd-gtr-r33/
Share on other sites

yep if engine is out and you are serious about hillclimbs/ circuit stuff then definately do the front diff. go 1way or 1.5way. cusco make good ones. it will take a little getting used to as they require a different driving style but by all accounts the benefits are well worth it. especially if you are getting up to 400kw.

I have nothing worthy to add to this thread by the topic caught my eye and now I want footage.

This is exactly the kind of stuff I want do when I buy my 34 down the track.

Sometimes I wish I was a bit stupider with my finances and had just kept the R33 GT-R!

Footage or pics plz :blush:

PM is fine as not to disrupt this thread.

cheers who sells cusco diffs in aus? also do i need to get a trust front diff extension to deal with the head from the lsd?

Edited by Travis Trayhern
  • 2 weeks later...

for those that are interested this job can be done with engine still in the car.

We did my Cusco 1.0 way without too much trouble and the STD front diff cover was used...although i have a modified Trust one now.

Edited by DiRTgarage
for those that are interested this job can be done with engine still in the car.

We did my Cusco 1.0 way without too much trouble and the STD front diff cover was used...although i have a modified Trust one now.

Paul

Also had to modify my Trust cover slightly to fit teh Performance Metalcraft sump - guessing you are in the same boat?

Ok ppls need some help and input.

Curently my gtr is lightly modded 300kw i use it for alot of hillclimbs and im one of the top contenders for the legend of the lakes hillclimb, 2007 i placed 3rd outright in my stock gtr so i spent the year pooring money into her for it to melt a piston the wk befor the 2008 hillclimb but still ran it up the hill on 5 cyl because i was in a bad mood and i placed 6th outright only 2 sec behind my 2007 run.

now new engine time and 400kw goal, in the next fortnight i will be taking the old engine out and placing in a forged beast with some bigger snails hangging of it. but in 2007 i remember getting wheel spin around the top corner of the climb front wheel spin! at speeds of 200kmh+ whick is a scary feeling but ya just hang on and clean ya undies at the top, the car was lifting the front left wheel of the ground so what should i do or what is needed to be done?

Front lsd in while engine is out?

Suspension work ie sway bars ect?

i already have tein coilovers, camber setup, dunlop slicks, chassi braces and roll cage bolt in 6 point but still std sway bars is this my issue, i really dont wanna put the engine in to fine out i should have got an lsd.

For my 10 cents worth a front LSD is probably one of the last things needing doing, but a Quaiffe would be my selection.

Are you logging wheel speed as this will tell you how much of an issue you have and how much a torque bias adjustment will correct any issue. Also try & ensure the suspension is sorted before fixing things with the diff.

A front LSD does not need the engine out.

Sway bars look at the Cusco stuff but understand:

1 they are not adjustable.

2 The front Cusco stiffness rates are a lot higher than the equivalent Whiteline.

3. Maybe custom bars would be the go but try for hollow bars rather than solid for weight savings.

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

    • Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • 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. 
×
×
  • Create New...