blackey

iTrader: (1)

Looks like I will have a set of Delrin bushings to sell...

SHPNOUT

iTrader: (3)

Bill, glad to see arms race continues.....

jkstill

iTrader: (11)

I had problems with alignment (lower front camber bolts) even with stock bushings.

With Delrin bushings I just check the bolts between events and tighten if needed.

I have not regretted installing the delrin bushings, and don't plan to go back to stock. These are the Lube Groove bushings, and I installed Zerks at the same time, though after a full season of autox I have not had any need to re-lube them yet.

Several other drivers have driven the car this year, and didn't have any comments about the handling other than "I can't believe how much grip your car has".

Fritz Flynn

iTrader: (263)

As mentioned I know there are people who like the Delrins I just prefer good stock or mazda comp bushings.

Just curious if you've driven one of these cars with very low mileage or new bushings?

racingdriver

Great looking car!

Your car looks a lot like my friend jack's. He has built a superb ls7 93 rx7 racecar with all the best parts. You guys even have the same wheels. You should compare set ups. I run the Michelin and yoko slicks and my spring rates are quite bit different than yours. With 1400 fr/ 1150 rr springs , light mazda fr bar, stk rr bar, I have a very well balanced car . I have actually run the stock diff for 12 years of roadracing with no problems with a big cooler with 700 rwhp.

I have just installed the s2000 ABS pump and was wondering if there is anything i should know before heading out on the track. ????? I have used the stock rx7 sensors, upgraded brakes fr and rear, and ran 2 lines to the rear which go into the s2000 distribution block and out to the rear wheels.

Any advice would be appreciated.

wb

jkstill

iTrader: (11)

Yes, my car had 41k when I bought it in 2001, the mileage is now 51k miles.

The stock bushings were in good shape when I took them out.

blackey

iTrader: (1)

The Honda S2000 ABS is a complete stand alone system. It only uses power, the four ABS wheel speed sensors, and a brake pedal switch. My first attempt with it was to use the stock FD wheel speed sensors, and wire it up. From my investigations the signals would be compatible. It indeed worked, but would go into ice mode from time to time, making some braking zones really interesting. I then switched to the S2000 sensors, but saw no difference. I'm almost certain my issue was tire diameter. The s2000 ecu will accept a 4% variance at most and likes less than 2%. The Goodyear 335/30/18 is huge, and at the time I was using the 295/30/18 front. This year I'm switching to slicks and using the same size front and rear. I also switched to the Wilwood rear calipers which use the same size pistons as the S2000. The front Brembo/Stoptech kit uses the same size pistons as the S2000 fronts as well, so it "should" work. The only issue is the wheel speed sensors, and if I have to I will machine the hubs to fit the s2000 trigger wheel and sensors. In looking at the signals with the FD sensors I think we will be ok though. The other difference is the FD has 44 pulses/rev where the Honda has 50. This will make the ABS think it's going slower than it is, but I don't think this should matter too much. We're going to test it early next year when the car is back together. It will be the #1 item.

Our second option is to go with the BMW system most of the World Challenge teams are using. I talked to quite a few people and Turner Motorsports sells a wiring harness for $2750 and the M3 CSL ecu/pump is about $1800. From there you can step up to a full race ecu, but expect to spend 10-15k on that, which is not in my budget.

blackey

iTrader: (1)

What tire sizes are you running? I agree mine are too soft and going stiffer is the direction we are headed. With my car I've found handling neutral to be somewhere around equal front and rear spring rates. I'm sure my big front swaybar has something to do with it.

Brent Dalton

iTrader: (31)

Thanks Bill. That's alot of good information. Are you running the stock master cylinder/brake booster?

racingdriver

I get the ice mode once in a while in the rain and over very high speed bumps with the stock abs, i think its just the wheel size and bigger fluid displacement of the calipers. I ran yoko 330 690 18's in rear and 320 650 18 's in the front, i liked them. Last year i tried 360 710 18, 330 650 18 goodyears and they sucked. This year 360 710 18rr , 330 650 18 michelins lmp1 tires. They seem very soft. I also bought a set of dunlop slicks in the same size to try but they seem harder but should last longer as well. i gonna be broke just over my tire bills!

Did you use a regular relay and a maxi fuse for the s2000 pump or the bigger box type relay that are in the factory harness.?

blackey

iTrader: (1)

I have been running the stock master cylinder, but we are in the process of putting in a Tilton pedalbox. We are going to put the ABS pump under the dash right next to the master cylinders to keep the lines to a minimum.

Racing Driver-

I suspect you will have the same issue with the tire diameters. The 710 and 650 heights are more than 4%. I used stock maxi-fuse as it had two circuits one 20A and one 30A.

Bill

Narfle

iTrader: (16)

What was the point of failure on the lsx? That's a strange looking final result.

blackey

iTrader: (1)

Our best guess is we cracked a piston and it for lack of a better word exploded. That cylinder had about 4-5% more leakdown than the others, but the block was a 98 and could not be honed. We were planning on a new motor in the off season. There was one piece of the piston about 1.5"x1"x1" and the next largest piece was the size of a thumbnail. Made a huge mess. Intake is full of pieces (even had a ring in the intake). pan, oil coolers, radiator, etc.. all have chocolate milk in them.

prew

iTrader: (9)

This car came from NJ right? If so those are the stock front and rear bumpers from my car in the day 1 photo

Awesome thread, can't wait to see what 2011 holds.

blackey

iTrader: (1)

I know the rear one was red at one point.

blackey

iTrader: (1)

Just in case anyone was ever curious the chassis with cage, nothing else (base) weighs 630lbs.

SHPNOUT

iTrader: (3)

Good info.....who is doing the sand blast and powder coat.......?

blackey

iTrader: (1)

Sandblasting by a guy down in Santa Cruz - Santa Cruz Sandblasting. Not sure on the Powder coat yet.

Just got it back from the sandblaster. He wasn't super happy I think - long day for him. Under the undercoating is a huge amount of glue. It took him forever to get it clean. Looks really nice now though!

Fritz Flynn

iTrader: (263)

Well with that said you are one of those folks that like the delrins so Blackey that's obviously something to consider and clearly when it comes to bushings and lots of other things especially handling related it's a personal taste.

SHPNOUT

iTrader: (3)

What's it weigh now??

blackey

iTrader: (1)

I haven't weighed it yet, but I don't think it will lose much. Maybe 5-10lbs. it was more for being able to clean it, and making it look pretty.

I should have a weight on Friday - but I need to spend a few hours getting the sand out of it.

I'm talking to Yasu at PPI. Retail on the pillowballs is $1643 FYI

finger lock

iTrader: (6)

My Feed bushings just arrived. I need to rest up for wrestling match that is pressing bushings.

Probably as much fun as removing sand from your car...

Guy

blackey

iTrader: (1)

Cool. It looks like so far I've removed 0 lbs. I suspect I have a pile of sand somewhere I still need to find.

All that and the dam sandblaster royally screwed up the floorpan and tunnel. Too much pressure too close. I think I'm going to have to cut them out and replace them. Nice.

Anyone know if you can get replacement floorpans?

gracer7-rx7

iTrader: (16)

It is listed in the Mazdamotorsports parts fiche. They list the whole floor as one piece (driver and passenger side). Almost $600

blackey

iTrader: (1)

Yea, i tried to get it, even called mazda motorsports. It appears it's no longer made, and there are none in the country. Looks like I'll be fabbing a new floor.