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Search: Posts Made By: Jim_Harrison
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Forum: Autocrossing & Roadracing
02-23-2014, 09:11 PM
Replies: 10
Views: 777
Posted By Jim_Harrison

The main issue here in the Midwest is finding...

The main issue here in the Midwest is finding people who are willing to volunteer their time and have the experience to do the job. The local events (solo) are always looking for to people to do...
Forum: Autocrossing & Roadracing
09-29-2012, 05:16 PM
Replies: 10
Views: 1,741
Posted By Jim_Harrison

The 72 was sold a couple of years ago and now in...

The 72 was sold a couple of years ago and now in Denmark. I really miss it but the Z06 requires a lot less maintenance.
Forum: Autocrossing & Roadracing
09-25-2012, 10:10 AM
Replies: 10
Views: 1,741
Posted By Jim_Harrison

Jesse; Give me a call and we can look at your...

Jesse;
Give me a call and we can look at your car one night this week of over the weekend. We can check the rear and front toe.
316-204-1076
Forum: Autocrossing & Roadracing
06-06-2012, 02:35 PM
Replies: 18
Views: 805
Posted By Jim_Harrison

I've found that the A6 does not like a lot of...

I've found that the A6 does not like a lot of heat. Many of us AutoXr's cool our tires after every run in the summer. I've found they get greasy above 120F but are good all the way down to 60F. Isn't...
Forum: Autocrossing & Roadracing
02-21-2012, 01:35 PM
Replies: 30
Views: 1,233
Posted By Jim_Harrison

Send us some info on not lowering. The only...

Send us some info on not lowering.
The only issue I've known about lowering the C-5 is not letting the shocks bottom out.
Forum: Autocrossing & Roadracing
01-16-2012, 06:48 PM
Replies: 30
Views: 1,212
Posted By Jim_Harrison

It used to be the Co-Driver was a tire warmer. At...

It used to be the Co-Driver was a tire warmer. At both Topeka sites this seemed to help. At Lincoln this may not be good as Matt Braun brought 3 sets of tires so he would have a cool and clean set...
Forum: Autocrossing & Roadracing
01-14-2012, 12:00 AM
Replies: 14
Views: 2,568
Posted By Jim_Harrison

I remember Rita kicking our bu??s in that car.

I remember Rita kicking our bu??s in that car.
Forum: Autocrossing & Roadracing
01-13-2012, 11:55 PM
Replies: 11
Views: 757
Posted By Jim_Harrison

As a member of this group once told me;"You gotta...

As a member of this group once told me;"You gotta decide if you wanna wax it or race it."
Forum: Autocrossing & Roadracing
12-04-2011, 11:53 AM
Replies: 22
Views: 1,714
Posted By Jim_Harrison

If you do warp these new rotors, turning them...

If you do warp these new rotors, turning them will grind through the nitrided material leaving the core cast material. Seems this process is only good for keeping your wheels clean. I would imagine...
Forum: Autocrossing & Roadracing
11-23-2011, 02:41 PM
Replies: 30
Views: 3,031
Posted By Jim_Harrison

Sold my C-3 so Mike might be the only C-3 next...

Sold my C-3 so Mike might be the only C-3 next year. A properly set up Pontiac Solstice or Saturn Sky might now be the car to beat. Andy Hohl took second another took sixth. 1st Corvette took 17th.
Forum: C3 General
04-23-2011, 01:57 PM
Replies: 32
Views: 9,263
Posted By Jim_Harrison

Lift the rear of the car off the ground and pull...

Lift the rear of the car off the ground and pull outward on the top of the tires. If you have excessive movement have someone move it while you look at the half shafts where they go into the diff. If...
Forum: C3 Tech/Performance
03-04-2011, 12:53 PM
Replies: 145
Views: 38,339
Posted By Jim_Harrison

My car had all the poly bushings, all new...

My car had all the poly bushings, all new steering box, tie rods, etc., 800lb springs in the front and custom Penski shocks. 295/35/17 Hoosiers on all 4's. The only Camaro type Street Prepared car...
Forum: C3 Tech/Performance
03-03-2011, 02:06 PM
Replies: 145
Views: 38,339
Posted By Jim_Harrison

I very successfully AutoX'd my 72 for many years...

I very successfully AutoX'd my 72 for many years at the National level. It was set up to SCCA street prepared rules allowing poly bushings, bigger springs, bars, wheels and tires. It could maintain...
Forum: C3 General
02-15-2011, 05:12 PM
Replies: 12
Views: 663
Posted By Jim_Harrison

Since you have new shims etc. this isn't a...

Since you have new shims etc. this isn't a difficult job. Just takes some time. All you need is a laser pointer and a level, two tape measures and two straight edges. I did my own till I sold my C-3...
Forum: C3 Tech/Performance
12-08-2010, 05:35 PM
Replies: 47
Views: 4,467
Posted By Jim_Harrison

I pulled the frames together to increase the...

I pulled the frames together to increase the amount of negative camber, got another .5 degrees. Once the bar is tightened it probably doesn't make much difference, it just becomes a support.
I ran...
Forum: C3 Tech/Performance
12-07-2010, 02:09 PM
Replies: 47
Views: 4,467
Posted By Jim_Harrison

The spreader bar just stops most of the flexing...

The spreader bar just stops most of the flexing at the top of the frame where the upper A arms attach. This can be significant but the whole frame flexes a lot. With your car running turn your...
Forum: Autocrossing & Roadracing
11-26-2010, 09:54 AM
Replies: 43
Views: 7,953
Posted By Jim_Harrison

I someone can find out what alloy of aluminum the...

I someone can find out what alloy of aluminum the CA's are made from I should be able to find out what the maximum temperature they should be heated without changing material properties. If they are...
Forum: C3 Tech/Performance
11-23-2010, 11:41 PM
Replies: 25
Views: 1,695
Posted By Jim_Harrison

This subject comes up all the time. All you need...

This subject comes up all the time. All you need is;
http://www.soloperformance.com/QuickCar-Complete-Wheel-Alignment-Kit_p_1172.html
AND a laser pointer to set the rear thrust angle. The car has...
Forum: C3 Tech/Performance
11-02-2010, 09:40 AM
Replies: 7
Views: 816
Posted By Jim_Harrison

With the rear of your car in the air have someone...

With the rear of your car in the air have someone grap your rear tires in the 6 and 12 o'clock position and try to move them in and out. You look at where the yoke fits in the differential and see if...
Forum: C3 General
10-15-2010, 03:41 PM
Replies: 9
Views: 602
Posted By Jim_Harrison

A C-3 is very competitive when set up correctly...

A C-3 is very competitive when set up correctly and the C-5 Z06 is one of the best stock cars to run. I often set fastest time of day in my C-3 beating all the cars you listed. Have a great time with...
Forum: C3 Tech/Performance
09-28-2010, 05:20 PM
Replies: 9
Views: 3,059
Posted By Jim_Harrison

[ Hey Jim, I think I saw somewhere your former...

[
Hey Jim, I think I saw somewhere your former shark has already been AX'ing with it's new owner.[/QUOTE]

Very good info from all the posts!
Skunk, I'm curious where ol red went. I beleive some...
Forum: C3 Tech/Performance
09-23-2010, 03:47 PM
Replies: 9
Views: 3,059
Posted By Jim_Harrison

I ran mostly AutoX and hopefully one of the road...

I ran mostly AutoX and hopefully one of the road course guys will sound off. The problem is; what is good for the track will cause uneven wear of your tires on the street. Also your front tires are a...
Forum: Autocrossing & Roadracing
09-10-2010, 08:13 PM
Replies: 62
Views: 5,159
Posted By Jim_Harrison

I wonder if it has anything to do with the huge...

I wonder if it has anything to do with the huge amount of rubber that builds up on ones tires at Lincoln. I scapped a coffee full of track rubber off my Hoosiers after the Midwest Divisionals. Seems...
Forum: C3 Tech/Performance
09-10-2010, 08:08 PM
Replies: 21
Views: 2,166
Posted By Jim_Harrison

1/8 to a 1/4 FRONT toe in? I always ran a little...

1/8 to a 1/4 FRONT toe in? I always ran a little toe out in front and about 1/4 toe in, in the rear. Seams to me a street car should be neutral for tire wear. I agree the caster will help.
Forum: C3 Tech/Performance
09-07-2010, 02:45 PM
Replies: 82
Views: 7,208
Posted By Jim_Harrison

I'm not sure what causes the snap rings to fail...

I'm not sure what causes the snap rings to fail but they do. The mushrooming of later axles was probably due to GM using lower cost steel and or reduced quality heat treating. (I work for the largest...
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