11-20-2011, 02:27 AM
|
#4
|
Sua Sponte
Join Date: Feb 2008
Location: Killeen, TX
Posts: 839
Rep Power: 18
|
Quote:
Originally Posted by Brent Dalton
Been trying to sort out an issue. I had a major transmission/clutch issue at CMP a couple of weeks ago where the car didn't want to shift. I knew I had transmission issues, so I went ahead and picked up a transmission that had some modifications, but included everything I needed to bolt it right up. Of course, that wasn't the case and I'm going to have to have a new driveshaft made to make it work. The old transmission went back in that has a couple of bad synchro's.
When I picked up the car in the project stage, the engine and transmission was together with a new clutch. It also had the tilton brake and clutch set up mounted to the firewall... This is why you never assume anything. Once I removed the transmission and saw my clutch had been completely ate up, I realized there wasn't a pilot bearing installed. We installed a new McCleod clutch, pressure plate, and flywheel as well as a new throwout bearing and a new PILOT bearing. Once getting everything back together, we still were having clutch disengagement issues. After going through everything, the only thing it could be was the clutch master cylinder was not displacing enough fluid. Once again, we assumed since it was already mounted up, they were the proper sizes. They weren't. The clutch MC was a 3/4" bore and the recommended size is 7/8" after speaking with Tilton. I've read some people are using 15/16" bore, but the guy I spoke with at Tilton said that if it takes that much with my clutch, there are other issues. So I had a the 7/8" bore overnighted and it arrived at the shop this morning.
The big challenge is the fact that all the clutch/brake stuff is under the dash. In a car with a cage with door bars, it makes it a royal PITA to access. Brian fought with it for a while and won. Clutch is now bled, and clutch is now working as it should. The clutch pedal is much more firm. The transmission will be good enough to get me through the weekend at VIR, after that I'll figure out something to do. We'll also be pulling out all the Tilton assembly to change the bore size on the brakes. The current set up is front 1" rear 7/8". I'll prob. change the front to 7/8" and the rear to 3/4". I'll have an update and hopefully some pictures and video's after the weekend.
Brent
|
Quote:
Originally Posted by Brent Dalton
Transmission issue resolved, still haven't switched the brake master cylinders though. I'm heading to VIR this weekend with Fritz. We'll see how it goes since this will hopefully be a trouble free weekend(first one since this event last year). Just looking to get some seat time and have fun.
Here's a couple of video's of me from the BMW event at Road Atlanta in September having some fun and learning the car:
http://www.vimeo.com/14915294
http://www.vimeo.com/15040928
|
Quote:
Originally Posted by Brent Dalton
Thanks Chuck! No, I think that's the wheel that had a little rash when I bought them. I've actually never driven on those wheels. They went on the car for a while when I was building it, but haven't put the flares or anything on yet.
VIR went well. I posted a new personal best of 2:06.9. Here's a video of me(with Fritz in front of me) during one of our Time Trial sessions.
|
Quote:
Originally Posted by Cgotto6
Hey, Just curious why you are switching up the bore diameters. IIRC you are running a front BBK with stock rears. I am curious because this is very similar to the setup I plan to run with a tilton twin master set up. Just trying to get as much info before I order my masters. Thanks.
|
Quote:
Originally Posted by Brent Dalton
The tilton master cylinders that came with the car that the original owner purchased are the wrong size. The pedal is extremely hard and their is essentially no modulation. I'm prob. giving up 2 seconds a lap at Road Atlanta, for instance, compared to braking in my silver car that was my previous track car.
|
Quote:
Originally Posted by Brent Dalton
Prior to the weekend, I had been to CMP for a lemons race where I drove ~30 minutes on a small portion of the course and another time in May when my car was broken. So this was realistically my first time on course. The track was really slick and I eased my way into it. I still had a couple of brake lock up issues, but nothing significant. I also had a close call in turn 3 that I was able to save(see video). I ended up getting 3rd on Saturday(got knocked out of 2nd in the last session). The top 4 guys were all within .5 seconds of each other. On Sunday I got 2nd. I'm ok with that for being my first time there. Still alot of time left in the car, just have to get the driver up to speed. Here's a short video:
I'll be at Road Atlanta in 2 weeks for the MVP event to get some more seat time and the end of year event the first weekend in December with NASA. Right now, my class has 13 cars signed up for the December event.
|
Quote:
Originally Posted by Brent Dalton
|
Quote:
Originally Posted by Brent Dalton
Quick update: I graduate U.S. Army Ranger School on Friday and will be back in the real world shortly after. So what are my weekend plans after being sleep deprived and starved for the last few months? Maybe a nice easy weekend or eating and sleeping? Nope heading to the NASA-SE event at CMP with a little help from my friends. Chadwick and Charlie from Mazcare are helping me make the event since I have no way to prep for the event. Wide fenders and tires will be on the car and I think the brake issue is better. I haven't had any time to get my new coilovers yet though.
If anyone wants to see a good depiction of Ranger school, the discovery channel did a good documentary on it last year. Here are a few videos of it: http://dsc.discovery.com/videos/ranger-school/
Hope to see all my fellow track rats soon.
|
Quote:
Originally Posted by Brent Dalton
|
Quote:
Originally Posted by Brent Dalton
Thanks!
Yes, 18x11 in the front and 18x12 in the rear. Front tire size is 315/30/18 and rears are 335/30/18. 25.6 outer diameter. I also have a set of 17x11 and 17x12 that are 315/35/17 and 335/35/17 with the same outer diameter as the 18's(25.6in)
|
Quote:
Originally Posted by Brent Dalton
|
Quote:
Originally Posted by Brent Dalton
|
....
Last edited by Brent; 11-20-2011 at 04:18 AM.
|
|
|