Jump to content
SAU Community

Recommended Posts

Drag Rear end set ups

Hey all

Im looking at changing the rear end of my r33 gtst. runs about 400kws at the wheels. im struggling to get any traction even on a well prepped strip and slicks.

Below is a video, if you turn the sound up you can hear im on and off throttle the whole time and spinning/loosing traction the whole time.

At the moment it just has a welded diff and lower springs with soft shocks,

What can i do to sort this??

video-1477097823.mp4

Link to comment
https://www.sau.com.au/forums/topic/467406-drag-rear-end-set-ups/
Share on other sites

  • 3 weeks later...

A strut/spring setup in the rear with quick/light compression and slow rebound will allow the car to squat and transfer more weight over the rear wheels. I woudl think the front would have a stiffer spring with high rebound in contract.

This is what I can gather however.

I can't tell if you have slicks or not but I went from 1.7's to 1.5's in just learning to use them properly (proper burnout heat). Also doing your burnouts in the water box will coat your wheel wells in water and when you get to the line and stage it drips down on the tires! This is bad.

Also slipping the clutch off the line will cause you to get off the line super quick and without spinning tires if done right. Really a hard thing to master.

Do you have launch control? what RPM are you leaving at? What tires are you running>?

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...