djr81

Here is the template for the 6 pot calliper on a 343 rotor. 6_3.pdf

Where abouts did they clash - on the diameter of against the spokes of the rim?

Thanks, that's champion that is.

Can I just recommend the following: DO NOT USE DOT 5 FLUID It is horrible, non compatible stuff that should stay on the shelf at the shop where it is offered. If you use the dot 4 - 600 fluid you will get better pedal feel whilst having a HIGHER boiling point for the fluid. Dot 5 is not better than dot 4 just because it has a higher number. It is, IMHO, rubbish that should not be used on any Skyline.

Stop it all of you. You are getting you categories & your cars well confused. The RS500 Sierra Cosworth was a longitudinal engined rear wheel drive car built for touring car racing. It was the evolution version of the Sierra Cosworth (hence the RS500 tag) and was introduced at the end of the 1987 season. In rallying the appropriate antecendent for the Escort Cosworth was the Sierra Sapphire RS Cosworth. Which had the same engine but with an AWD system. It was a rally car. It was introduced AFTER the track version. The Escort Cosworth shown in the first post shared a great deal with the Sapphire - basically the entire drivetrain with an Escort body shoe horned onto a cut down Sierra floorpan. The Lancia Delta Integrele first ran in an 8V form in the 1987 season - so it predated both the Sapphire & the Cosworth Escort.

My point was simply to show that it was possible, indeed common if you are looking at something like an early RX. Alot of the GT wings sold for cars would be illegal under those rules too. Hmm 3.13 certainly reads that way, but nayway. My point is that if you can generate a list of modifications that would constitute a race car then it is possible to allow a road car to have, say 5 out of a list of 20 (for the sake of the argument). Other things may be mandatory, yet more may not be allowed at all.

I agree, but there is probably a transverse vs longitudinal engine installation argument. You could reasonably argue the Audi arrangment is a bit of a blind alley. Also who is that twat from top gear?

Rather than go through all that again, have a quick look at this: http://www.camsmanual.com.au/pdf/3category...203J%20Q407.pdf Check items 3.4, 3.5, 3.6 & 3.13. The reason I would seek to allow street cars to run R compounds is that they are common as muck with people who already run their cars in hillclimbs and sprint events. Thinking back to the last one I entered there was not one car on road tyres. So the people who may be interested will already have appropriate rubber. As opposed to having to get whatever street rubber is closest to 100 hardness.

Cough, what would the Stig say to that?

Two things. 1. Stock parts are designed to work together as a whole. Rb26's don't suffer from valve float like say a Ford straight six - so the stock valves are good enough. It is common not to upgrade the springs when you upgrade the cams anyway, so not much point on stockies is there? 2. You can test the springs to see if they are still the right spring constant. So maybe do that before spending large on stuff you don't need. Oh and think about reshimming the valve train if you are pulling it all apart.

Some things I would do if my car was a race car, not a road car. Lightest wheels I could lay my hands on. Proper brakes. Proper suspension adjustment (ie large amounts of -ve camber at the front amongst other things) Ditch the HVAC system. Chuck the ABS. Chuck the interior including the stereo, seats, carpets, roof lining, door trims etc etc etc. Chuck the mufflers/cat. Stick a proper roll cage (ie one that links the suspension towers as opposed to a bolt in) Seam weld it. Run seriously offensive LSD's at both ends. Run lower diff ratios. Dump the stock body work for such things as vented carbon bonnet, new front spoiler. Proper gearbox eg close ratio gear set. Lexan side & rear windows instead of glass. Install CAMS required items eg 2 litre catch can, proper fire extinguisher. Thats just off the top of my head. Surely there is enough differentiation between a road & a race car to make a judgement call without too much controversy?

All GT-R's came with rear wings.

By struggle town I mean the unequal strruggle that is making a road car behave itself on the track. Why limit the cars? Why not have an open slather open clas? Then place limits on the lesser categories?

No idea, probably not. But my point is that a track car is an entirely different animal to a road car & also that they tend to be away in their own land anyway. Those of us in struggle town don't appear on their radar so having a class structure doesn't affect them. Yeah, except for the "Here's my time & here's yours, below mine on the time sheet" usually brings things to a halt pretty quickly.

So if my road registered GT-R doesn't have the mods to compete with a sports sedan then bad luck? You are kidding, arren't you? As mentioned previously the number of "outright" JDM cars in this country is few. Allowing road registered cars will greatly increase the pool of people interested in running. The whole idea behind having a class structure is to encourage more people to enter/compete than just those in the outright category. The result of hte Japanese events has been the opportunity for workshops to show off their skills by producing a quick car - which presumably the owners of road going cars can appreciate & learn from or even buy from the shop concerned. Also the mods required to allow any car to live on the track, let alone produce decent speed are considerable. So a workshop demonstarting a quick road car will drum up business. Oh and talking shit is pretty much a full time occupation - it merely peaks in the days before an event.

No. Or atleast not one that was either moving, licenced or that you would not be deeply ashamed of.

Hmm, timely thread. I have a tyre that needs a puncture repaired too. Oh apparently they are not a run flat tyre. Who knew?

Thanks for the photos. Calliper part should be EP603? Piston area totals up to 5020 mm2. The same as an AP CP5555 which is also a 6 pot. Both of these have a smaller piston area than either the stock Sumitomo (5127) or the stock Brembo (5309). The pad area is larger than either, although smaller than the AP. I think this may be the pad from the Endless catalogue? Not 100% sure without overlaying it. It is page 166 from the Japanese brake Pad Shapes in the link below. http://www.endless-sport.co.nz/Downloads/t...26/Default.aspx pad1.PDF

From the little I can make out on shots of R32 V-Spec engine bays the master cylinder arrangement looks to be different to the 33's. Surely someone out there must have a photo?

The measurement is from the centre of your rim to the guard. What you have shown is wrong.

Absolutely. Anything you can manage is all good. Have a look at the link from above because a couple of them have drawn the pad outlines of data sheets. May make it easier. Also be curious to find out what the piston sizes on these things are....

33 one looks like the photo below. I am just trying to determine what the 32 version looks like so I can be sure I get suffient parts if/when I change it over. Either that or I will have to get an AP unit or similar. Diamter is sorted R32 = 25.4mm, 33 = 26.9mm

Couldn't find out. The people who supply Endless pads pretty much only supply Endless pads. Whereas those that supply Ferodo stuff can't help much without a pad shape - which I can't find. There are a few sites with pad shape info on them, but matching to the calliper is too hard. I haven't yet run anyone down who admits to owning an Endless calliper. There is info here, but I am stymied because my puta neither has a Japanese language install nor could I read it even if I had. http://www.endless-sport.co.nz/Downloads/t...26/Default.aspx Maybe try Tony Flood in Perth if you are keen. He is usually very knowledgeble/helpful.

Wait until he gets a load of Piquet junior then.

Baron have any detail photos of the cold air induction on the Calsonic R32?