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Sedan Super Cup Race 2

Old 06-16-13, 09:48 PM
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Sedan Super Cup Race 2

Hi All

Here is race 2, gets interesting at the end as my rear suspension breaks. I think I hit the Kerbs and Ripple Strips to much!. There is some still Pics of the broken arm at the end of the race.

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Old 06-17-13, 09:13 AM
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Very nice race and great driving. Two thoughts though, first with your obvious speed why were you back in 13th at the start? Your car has great legs and you can drive the wheels off it, I would have thought that you have been in the top 5 to start. Secondly, I absolutely love your gearbox and the sequential shifter. You were able to make up so much time with the quick upshifts and downshifts.

Oh yeah, I have a third thought ....... I want a turbo now.

Seriously great driving and especially when the control arm broke. I had that happen to me in an 8 Hour Race in a Cobra R at Portland about 10 years ago at about 270 kmh (165 mph). The upper control arm snapped and I got into a set of tank slappers and luckily kept it off the wall. I can't imagine how you kept yours under control enough to finish the race. All I could do was crawl around into retirement.

Eric
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Old 06-17-13, 10:27 AM
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Thanks Eric
I qualified 2nd 1/10th off pole, was between the 2 Ferrari 458 Challenge cars. But in race 1 I have a front camber bolt spin and throw the camber and toe way out so I had to retire as the car was un-driveable.

Its a great gearbox, but its no advantage in those races as all the cars in the field have similar/same boxes, in fact the V8 Supercars in that race have the same Holinger V8 Supercar box that we have (RD6S)

The control arm started to fail just as I caught the Ferrari, I thought the tyres went off really fast but it was the control arm flexing and then breaking. I can understand how you feel, its a first for me and hopefully the last time a suspension arm fails.

Ash
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Old 06-17-13, 11:50 AM
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Also, who owns the Trans Am Camaro that you were running against? It looks to be an older car, but it should have the pace of anything else there if prepped right. It looked major twitchy and couldn't put the power down, but I always wonder about cars that end up far from home.

Eric
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Old 06-17-13, 12:24 PM
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Originally Posted by 23Racer View Post
Also, who owns the Trans Am Camaro that you were running against? It looks to be an older car, but it should have the pace of anything else there if prepped right. It looked major twitchy and couldn't put the power down, but I always wonder about cars that end up far from home.

Eric
The guy who owns it is Ron Moler, I don't know much about him or the car. I know its a genuine Trans Am race car, it has some decent power but unsure how it stops or handles. Its the first time I have raced against it.

There are a few Trans-Am cars that race on the east coast in the Shannons Series
Shannons National Motor Racing Championships - Kerrick Sports Sedan Series
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Old 06-17-13, 08:17 PM
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I think I hit the Kerbs and Ripple Strips to much!.

Its just a flawed design in the aftermarket arm. The stock forged aluminum arm is much stronger.

Are you not able to get enough negative camber with the stock arm?

But in race 1 I have a front camber bolt spin and throw the camber and toe way out

I also have the problems with the front camber and caster eccentrics coming loose. I bought the newer supersession eccentric bolts (mine is '93) that have larger bolt heads and two splines per bolt instead of one and they still came loose.

I cleaned everything well with brake cleaner and used Loctite between the eccentric plates and subframe as well as on the nut and torqued everything way down.

So far it hasn't slipped. If it does I will drill and tap through the eccentric washer into the subframe and place a bolt in there to stop it from moving.
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Old 06-23-13, 02:02 PM
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Originally Posted by BLUE TII View Post
Are you not able to get enough negative camber with the stock arm?
Same question - I am pretty sure the stock rears will easily go -3 and more.
Mine are currently at -2.75

I bought the newer supersession eccentric bolts (mine is '93) that have larger bolt heads and two splines per bolt instead of one and they still came loose.
What are supersession bolts?

Ah, ok, I think you meant supercession, as in superceded.

I've had the same problem with the stock bolts,
but no re-occurrence with the later bolts.

So far it hasn't slipped. If it does I will drill and tap through the eccentric washer into the subframe and place a bolt in there to stop it from moving.
How to do you plan to do that and account for possible different alignments?

What would be ideal would be straight through hole with no adjustment, and the arm modified to adjust the length.
I am not sure if that is even possible.

Straying a bit off topic here I am afraid.
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Old 06-24-13, 02:57 AM
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Supersede. I know, it looks funky...

How to do you plan to do that and account for possible different alignments?

I wasn't accounting for different alignments in that scheme as I simply have the neg camber maxed in front and made even side to side.

If I were to make offset bushings for more negative camber I would have to come up with a scheme for different alignments to enable me to have the correct amount of negative camber instead of just the most I can manage.

I suppose one could have multiple holes in the subframe and camber drive washers for different set alignment points.

So far the loctite is holding. *crosses fingers*
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