Hi,
I've a couple of questions as I've been looking into servicing and upgrading my '94 2.3Si 4WS ready for next year.
I bought new ebc disks and pads (yellowstuff) and will be changing the fluid and istalling braided brake hoses at the same time. First question is does anyone know if I can put Dot 5.1 brake fluid in the car or will it ruin the seals - it only states Dot 3 or 4, but then when the car was made that was all there was.
Also there seems to be a bit of a lean in the rear suspension - the right side of the car sometimes is about 20mm lower than the left. Can't see anything wrong with the springs or the shocks and no obvious damage to the wishbones. Any ideas?
Also the antiroll bar isn't symetric, is it meant to be or is it purposely this shape to get around the exhaust.
Thanks,
Hatch

 

It sounds like you're doing some kind of track event. What does "ready for next year" mean?

 

Hopefully the nurburgring, but certainly castle coombe (did that september - great fun), bedford autodrome, silverstone and any others I can fit in.
Hatch

 

I think you can put in 5.1 brake fluid, but there's no reason to. Most great brake fluids people use are DOT 4 but exceed DOT 4 specifications. ATE super blue is good for mixed street/track use, and if you really want something that will stand up to heat, try Motul 600, but change it regularly. Castrol SRF is supposed to be the end of all brake fluids, but it's $70/liter.

 

Thanks Ludemandan, I'll look into those. When you say change the Motul regularly - how regularly do you mean? 3 months - after every track day?
Cheers,
Hatch

 

I don't know because I've never used it, but some people do change their racing fluid after every event.
Search through the autox forum, especially on PreludeOnline.com, for lots of track prep wisdom.

Dan