Sydneykid

Nitrogen pressue in shocks varies a lot, around 60 psi is not unusual.

Don't you hate that? The wheels makers tell you how wide they are, their diameter, the offset, the stud pattern, they even have pretty graphics so you can swap wheels on a picture of your car so you can see what they look like. But try and find out how much they weigh, don't hold your breath. Can you imagine a lightweight flywheel manufacturer not telling you how much his "lightweight" flywheel weighs? But wheel manufacturers do it all the time and there are 4 of those (big flywheels) on your car. I have a rule now, every time I go into a tyre shop I ask how much the "lightweight" wheels weigh. I never get an answer, maybe if we all do it they will get the hint and publish the weights like they do all the other specifications. :slap: BTW, just because a wheel is forged doesn't necessarily mean it is lighter. The reality is a forged wheel of exactly the same dimensions will be heavier than a cast wheel with the same dimensions. The forged wheel will, of course, be stronger, but not necessarily lighter. Once again, published weights would help.

All gas pressure shock absorbers use nitrogen to help stop foaming in the oil, it squeezes out the air bubbles.. Why? Because air bubbles are bad for damping, the valves need pure oil to work properly, air mixed in just slips straight past the valves. Hence no dampening. For $143 per shock I can almost buy a brand new Bilstein, doesn't seem like good value to me. In addition I have no car for a week while the shock is away getting rebuilt. Plus, even after the rebuild, I still end up with a simplistically valved, twin tube, Japanese shock absorber that isn't designed for the rough stuff we have to put up with. My 20 cents worth:cheers:

Is that R32 GTS4 or R33 GTS4?

When you get the $50 ones can you please post a picture, in the packet, out of the packet, on the car, it doesn't matter.

It's marketing driven, the advertising agencies did a survey and asked Joe Public what "Four Wheel Drive" meant? Joe Public said big, heavy, gas guzzling waggon that can go off road but hardly ever does. This is not what Audi/Subaru/VW/Porsche wanted to hear. The advertising agencies invented "All Wheel Drive" to distinguish their cars that drive on the road, from the "Four Wheel Drive" that bashes bushes. Nissan made GTR's to win in Group A and they did, so they were banned. Audi copied with the Quattro in SuperTouring and they won too, so they were banned. Now we are stuck with Commondoors and Foulcans.

Hi Ben does this mean you have a tow bar fitted? How much? Where did you get it? What is its capacity? Sorry I can't remember the wiring codes from the R33 GTST (I think they are the same), I simply pulled the tail lights and checked the colours at the bulbs.

You would need to buy a complete R33 GTR front cut and swap over ALL the bits (except the gearbox of course) it is quite easy. Not cheap though.

I have found the Tomies to be superior to both of those brands in RB25DET's.:cheers

It has been my experience that 550 bhp is no problem for the standard coils and ignitor.

Not sure what you mean by "use", I can plug the standard GTR air temp sensor into the Power FC, just add a wire to GTST ECU plug using the standard GTR pin number. The R32 GTST Power FC does have a 3 stage air temp correction table coupled with the 2 stage boost correction table for fuel. It also has a 3 stage air temp correction table for ignition which is independant to the 2 stage boost correction table for ignition. This gives a pretty wide range of corrections for both fuel and ignition that can be separately referenced to inlet air temp. This is accessed via the Datalogit software, I don't think the Commander has access to this area. Hope that helps

The OS Giken clutch linings are bonded onto the disk on the road (lower power rating) spec multi plates, they also have coil springs for taking up the shock loading. The race (higher power rating) specs have no coil springs. The splined centre is rivetted to the disks. So the process is to drill out the rivets, keep the spined centres and replace the disk and linings with new parts. The equivalent Daikin parts fit pretty well. Hope that helps:cheers:

This is a picture of the three types of RB injectors. The one on the left is the R34 GTT top feed injector style, the one in the middle is the R33 GTST side feed injector style and the one on the right is the RB20/26 top feed injector style. Hope that helps:cheers:

Measure twice, cut once. :chop:

Nope, one set lasts several race meetings.

The R32 GTST M Spec upright has the calliper bolts in the same place as the R32 GTR upright. The R32 GTR calliper has longer "ears" to fit the larger diameter rotor. By the time you have typed the question you could have fitted up one set of brakes, just get into it:cheers:

1. there are two types of OS Giken twin plates, one is rated at 550 bhp and the other 700 bhp in a GTR (4wd and extra weight) so slightly more for GTST (2wd and less weight). 2. lots, we have had 650 bhp for 2 years in a circuit race GTR using the 550 bhp OS twin plate. 3. my local clutch shop put new linings on the OS Giken clutch plates, no problems. Hope that helps

Hi Scott, 4,000 rpm actually (at 27 kph per thousand rpm in 4th gear). I aim for 12 to 1 from 3,000 rpm upwards, under that up to 14 to 1 is OK for fuel economy. So I am not sure why it goes so rich at 2,500 rpm. Other than that it looks OK, the power line is certainly smooth enough.

No problems, which bit would you like translated?

R34 GTT is the same rear suspension as R33GTR. R33 GTST will not fit, for example the rear shocks on the R34 GTT have a fork at the bottom whereas the R33 GTST has a bush at the bottom (sounds like a girl I knew once). Get R33 GTR bits for the R34 GTT and you will be OK.

Use the disk and calliper off the same model and they will bolt up no problems;

Who cares about the diameter? You are going to put low profile tyres on anyway, so the rolling radius will be the same. It's the width that's important.

What Duncan said, but some rims are very heavy, like having 4 flywheels.

I have a set on the R32 GTST, work great, slotted not cross drilled, I use Hawke brake pads (blue compound). Brakes easily exceed the capacity of the tyres.

I don't believe that the Splitfire coils are designed to work with CDI, they will work but I don't think they are optimised. We use Mercury outboard coils with the Motec CDI, they are specifically designed to work with CDI. I can recommend that system for seriously upgraded engines, but I wouldn't be doing it for engine with say under 750bhp. Up until that level the standard RB26 ignitor and coils seem to do a pretty good job:cheers: