Odd question: CJM RRP vs 2 piece brake rotors

Originally Posted by DarkJak

I agree, a fuel starve solution is great to have early on. The earlier the better, IMO, because if you end up having to pay for gas at the track, that's probably $50 extra in fuel costs each day. Or if you have to pit in early because you fuel starve halfway through a session, that's a considerable amount of track time you paid for that you now are missing out on.
It saves buying a couple more fuel jugs to haul gas to the track, if you DO plan on bringing extra fuel.

And that's a quality of life improvement you'll run into early on, and one that slowly pays for itself over time.

2 piece rotors are much less noticeable in comparison. You are unlikely to require the extra cooling they provide for a while, and the difference in feel from the weight reduction won't make or break a day out. Once you're fading track pads, or close to boiling fluid, it'd make more sense to swap, but for a lot of people and tracks, good pads and fluid are all they need with stock Akebonos.


Waiting for CJM is nice if you have the time. If not, Radium's in tank surge tank kit also works well, though not a beautifully designed and machined as CJ's. Another solution that works well enough is the Z1 kit, though it won't let you run as low as either surge tank solution. It's just a second pump that draws through a fuel mat and feeds into the OEM pump's basket, and not a surge tank design.

Originally Posted by 2011 Nismo#91

RRP! I have almost ran the tank dry and no fuel starve because I forgot to fill up before that session. On the track the gauge read no fuel but off the track it went up to 1/4 or so.

Surprised that your brake fluid boiled, I never boiled fresh RBF600 and my pads were literally smoking. IMO 2 Piece rotors are over kill for beginners and intermediate groups. With the basics done I would focused on safety gear. Shoes and gloves for yourself and seats and harness bar or better for the car. And that safety gear will carry over into racing too.

Originally Posted by Shoeshear

I got very light fade at the end of the 20 minute sessions with project Mu pads, and essentially none with CT XP8 which is what I'm running now. I did manage to boil the fluid though, but after a full flush, haven't had it boil again. I haven't gotten the chance to run with 200TW tires and the brake ducts yet, but hopefully that will fend off any fade or fluid boiling issues.

I have been looking at the radium "kit" over the weekend, but it seems much less self-contained than phunk's RRP and somehow they made the install seem more complicated thank what I've read up on the RRP. Not sure what's going on there.

I think I'm going to skip the Z1 hydramat option. The collective knowledge seems to indicate that going with some kind of surge-tank design is the move.






I haven't been running RBF because it's still a sort of daily driven car (less and less with each passing week) and I didn't want to deal with the more frequent bleeds since it absorbs a bit more water than the standard fluid.

Other than being a bit less shiny, any thoughts from any of you on the Radium unit? Does it work as well? My next few months are looking like absolute shite (back to working 80-100hrs/week), so I feel like it's probably worth waiting for phunk to bring some goodies to the table (phunk if you read this, pretty please???).