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Kirkham Motorsports

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  #1 (permalink)  
Old 12-06-2018, 05:23 PM
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Default Good Guys: Scott Fraser Drives Bruce Cambernís Shelby Cobra to AutoCrosser of the Yea

The Good Guys email update just arrived. Bruce and Scott get center stage!

https://www.good-guys.com/hotnews/sc...ember%20G-News

Congratulations!!!!
Ron61 and rodneym like this.
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Old 12-06-2018, 05:41 PM
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Congrats to Bruce and Scott, your determination and attention to the minutest (is that a word?) detail have taken you to the top once again ! And with a 50+ year old Car !! ( but what a car!! )

Ted Radtke
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Old 12-06-2018, 05:45 PM
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Cool! Congrats on keeping a very old car in the mix and not falling in to the "it's too valuable to race" trap!
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Old 12-06-2018, 06:13 PM
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Thats what these cars were meant to do, compete. Congrats on on all the hard work and perseverance!
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Old 12-06-2018, 08:17 PM
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Congratulations
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Old 12-06-2018, 08:21 PM
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Kudos Scott & Bruce - you both have made my day - your posts always provide me with much interest.
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Old 12-06-2018, 09:27 PM
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Hope we get to see some videos from the day.... congrats, all the hard work paid off...
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Old 12-07-2018, 04:46 AM
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I agree with all of the above. Congratulations! Also just wondering what tire pressures you were running and what tires?
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Old 12-07-2018, 05:18 AM
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Congratulations and you are doing a great job. I hope that next year will be as good or even better for all of you.

Ron
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Old 12-07-2018, 08:43 AM
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Default Tires

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Originally Posted by t walgamuth View Post
I agree with all of the above. Congratulations! Also just wondering what tire pressures you were running and what tires?
We ran the Viper ACR Kuhmo fronts 295/25/19 at 24 pounds all around
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Old 12-07-2018, 09:01 AM
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Default Videos

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Originally Posted by Three Peaks View Post
Hope we get to see some videos from the day.... congrats, all the hard work paid off...
Here is one in car: https://www.youtube.com/watch?v=WQ8V...I4J89NccUhpJ1Q


One on face book from destination Garage it is the 3rd video down

https://en-pi.facebook.com/DestinationGarage/

Thank you all for the nice comments, working on an upgrade for the front suspension right now. I also need to put new valve springs in, all that 9000 rpm
stuff made them tired.
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Old 12-07-2018, 11:59 AM
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Awesome result guys, congratulations! Well done.

I notice after each run after you cross the finish line you "flick" a toggle switch at the bottom of the dash. What are you turning off?

Stu.
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Old 12-07-2018, 01:14 PM
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Quote:
Originally Posted by Cobra #3170 View Post
We ran the Viper ACR Kuhmo fronts 295/25/19 at 24 pounds all around
Thanks! I need to establish a base point on my car as I plan to do a lot of autocrossing next year!
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Old 12-07-2018, 01:16 PM
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Quote:
Originally Posted by Cobra #3170 View Post
We ran the Viper ACR Kuhmo fronts 295/25/19 at 24 pounds all around
Thats a lotta tire! What about the rear?
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Old 12-07-2018, 02:43 PM
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Quote:
Originally Posted by Cobra #3170 View Post
Here is one in car: https://www.youtube.com/watch?v=WQ8V...I4J89NccUhpJ1Q


One on face book from destination Garage it is the 3rd video down

https://en-pi.facebook.com/DestinationGarage/

Thank you all for the nice comments, working on an upgrade for the front suspension right now. I also need to put new valve springs in, all that 9000 rpm
stuff made them tired.

So it doesn't get lost as Destination Garage adds content, here's a direct link to their video: https://www.facebook.com/Destination...4337571796204/
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Old 12-07-2018, 02:45 PM
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Quote:
Originally Posted by Sawdust View Post
Awesome result guys, congratulations! Well done.

I notice after each run after you cross the finish line you "flick" a toggle switch at the bottom of the dash. What are you turning off?

Stu.

Perhaps turning cooling fans on?
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Old 12-07-2018, 03:20 PM
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Oh I see. Viper fronts all around. did you have trouble fitting them under the front end?
Thanks!
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Last edited by t walgamuth; 12-07-2018 at 03:35 PM..
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Old 12-07-2018, 04:47 PM
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Good point Brian. It might be
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Old 12-07-2018, 10:11 PM
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Default Switch

Quote:
Originally Posted by Sawdust View Post
Awesome result guys, congratulations! Well done.

I notice after each run after you cross the finish line you "flick" a toggle switch at the bottom of the dash. What are you turning off?

Stu.
That is the switch that arms the on board engine data acquisition. He turns it off so it does not re-trigger and over write data from the run. We monitor throttle opening, fuel air ratio, drive shaft speed, drive shaft acceleration per .1 sec, traction control intervention, spark advance, RPM, MPH, intake air temp and water temp. We use the data mostly for setting traction control parameters but also look at air fuel ratios and peak rpm. We have another system that monitors G loads, GPS speed, position on the course, and average speed. Both are time based so we can see where on the course we are getting excessive wheel spin or less than expected lateral or fore and aft G loads. For example, we got about 1.4 lateral G with viper fronts on all four wheels but our acceleration dropped about .1 to .2 vs Bridgestone rear tires.
We backed to back on Friday and found that the four Kuhmo's were faster than the Kuhmo/Bridgestone combo ( which only pulled 1.3 lateral G) by about 1 second.
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Old 12-07-2018, 10:21 PM
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Default Front tires

Quote:
Originally Posted by t walgamuth View Post
Oh I see. Viper fronts all around. did you have trouble fitting them under the front end?
Thanks!
No, the fronts fit fine, the rear (355/30/19) is too wide though, the biggest tire I can fit under stock fenders is a 335/30/18. So we put fronts on the rear because the compound is stickier than Bridgestone's 71R compound.
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