aongch

So bad!! Photobucket really messed up my earlier build progress pics hosting. Anyway here are a few. For comparison performance wise, at Auto Club Speedway in Fontana CA, on the 2.7 mile Roval (front straight, banking, and infield) best time is 2 min flat, versus my previous E46 M3 which ran 1:55 with about 40 whp more.

Back posting again guys.....to update on the Quaife, it's working as it should on track, pulls hard on corner exits, no complaints on strange sounds, good so far. But reason for posting is, coolant seems to keep getting past the cap. I'm using the Arizona Z Car cross flow alum, and have used 13, 16, 20 lb caps, still not solving the problem. Pulled the plugs, looks good with brownish insulators, no oil burning. Although I haven't done any leakdown test, could this be a head gasket issue? It seems street driving doesn't give the same issues. Any ideas?

Thinking back when he used to autox his RX-3, those were fun years at Cal Club events. He always was and forever be appreciated for his straighforward, no fluff, answers. Hi techical knowledge was huge. Certainly my prayers for his family, even at this late post.

Nice work, who is your local tuner? This may be my next steps, single turbo route, I've been tracking on the stock turbos, reliable but ready for upgrades. And what EM are you using? So far I'm heading for the plug-n-play AEM.

Hi Carlton, The Quaife was installed then I street drove it about 50 miles easy pace as suggested, and then tracked it on one event. No noises or any overheating, all seem to work great. I noticed how nice it pulls off corners now! M Factory diff shop in CA installed it, Offset Motorwerks did the R/R, also installed a filtered breather hose to vent high in the rear deck area. Do you get noises with yours? This is the fluid I'm using

Following your build, sounds wicked! How long is your plan before track ready? Hope to see ya soon, tracking, since you're local.

Track pics from the Nissan Challenge:

Sweet finished product and awesome pics! My track build will never be that pristine. Keep modding...

Track day at Auto Club Speedway Fontana CA, Nissan Challenge, had fun with the new Quaife! So planted out of corners! Here's a short clip in the faster Red/Race group Sorry for the bit of glare, need to place GoPro mount in a better loc. https://youtu.be/3pkpY1T_b2M One issue: 280ZX brake booster gave out, but the good thing is, lets me modulate braking so much better with the firmer set up. So, need recommendations up for booster delete.

Next track day coming up! Quaife is in!! Prelim drive-around seems solid. I'll have some good company, Nissan Challenge at Auto Club Speedway, Speed Ventures event. Recent Z Bash put out by Motorsport Auto - zcarparts.com

Ian, what can you say about differences, your experience, between the Quaife and OS, since I've bought the Quaife already, just needed the install with new bearings etc?

Prepping for another track day, all's going well. EM is still in the works, probably going with AEM. Couple of upgrades very soon though - Quaife LSD, lighter seats.

Apprec that info, Ian, I'd take it that the MAF will be thrown out when using any of these systems, which will free up room in the engine compartment?

That is true, Sovereign, this was the case with the Evolve-R e-tunes for my M3, they're in Britain and does take a while for any turnaround/updates. I have a couple of local enough sources to 'interview', I guess the more back and forth questions/answers will tell me which shop to go with. One that seems knowledgeable is FSR Motorsports in Montclair CA. They specialize more on 2JZ motors but have actually tuned RB motors before.

I was just discussing options with a local tuner familiar with the RB26. They suggested AEM ECU to replace the stock Central SPL for the various tunable options (pump gas, E85, etc) AND available support. Any inputs? Ian you mentioned the G4+, how does it compare? Anyone has experience on a reliable crank trigger system (Ross, ??) to replace the stock CAS? Again, I'm interested in a step-wise approach to mods, aiming at just over 300whp from the current 256whp.

Track pics courtesy of Caliphotography. Front straight speeds about 130 so far first time out at current tune (8.5 lbs boost) plus Quaife not installed yet. Next target, shave 5 secs off to match M3's times at ACS. Looking into Nismo R-tune or AEM options....

The R200 diff leak is from the breather tube, apparently this is common, will fix with tapped vent tubing attached much higher somewhere on the body. http://forums.hybridz.org/topic/56986-r200-diff-puking-oil-out-of-breather/

Great time at the track at Auto Club Speedway's 2.7 mi Roval (front straight, banking, infield), chassis, susp stayed solid. For this first time out, I found only a couple of issues. But RB ran strong, esp pulling out of corners, betw 4-6300 rpm, made many passes!! Front straight speeds around 130 so far with the Z32 5 spd. Some key feedback: - Wilwoods are amazing, although rear bias had to be dialed almost all the way out/decreased, too twitchy at heavy brake zones - No overheating whatsoever. Water temps stayed steady betw 180-190 at ambient 70-85 deg F for the day - Susp settings - camber, toe - just about spot-on, R-comps Z214 wear patterns even, temp readings across tread also even - Minor leak from diff at first session, seal? overflll? Will confirm - Coolant seepage from cap when parked after sessions. Radiator cap at 13 lbs I believe too low Next steps: - Install AFR gauge - Look into boost controller/ECU/tune, target 325 whp Results, not bad for maiden track day:

Woohoo finally ready for first track day... final checks, fluids, pads, extended studs, susp bolts..... Speed Ventures event Fontana CA http://speedventures...ail.aspx?id=530 My 73, a '71 and '78 are IN for the full 2.7 mi Roval!! Anyone else local want to stop by or also run the Roval or autox? Hope to see more out there.

What are your goals again for this build - drag, road race/tracking? Nice build and progress! Keep em coming, I'm following...

Accusump is race proven, Thanks. As far as 'overfill by 1 quart' per Chris, is this fine with RB motors? I know that BMW does not recommend their engines to be overfilled due to cavitation (air/oil bubbles circulated), hence avoiding the practice in my M3. If this is not an issue with our RBs I would definitely add the extra quart for insurance.

Good advice, all, can you recommend a good, aftermarket baffled pan? This might have to do before the oil restrictor. Track sessions are 5x 20-25 mins, I can always watch the pressure and/or use a warning light. For the oil restrictor, OEM, brand, type? Any links to vendors?

The block is all OEM, and Chris, good approach, incremental monitoring. Thanks. What's a good preventative aftermarket to prevent these issues, baffled pan, larger capacity?

Need some advice before taking mine out on the big track soon. So far I've installed a proper ATL cell, so fuel issues should be minimized. My biggest concern is the oiling system, current RB26 has N1 oil pump with the RB25 sump (reverse install). Do I have to worry about oil pick up and starvation at high G's, for example here locally at Auto Club Speedway's high speed banking? I'm asking mainly about engine and drivetrain. Suspension and proper bracing, as well as cooling, are taken care of. Thanks a bunch guys, all advice taken. I'm excited and ready to push my S30 to similar M3 levels

Nice run, did you say this was Stock? At what boost and what whp?