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Kirkham Motorsports

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  #11 (permalink)  
Old 09-29-2015, 10:50 PM
MJC MJC is offline
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Join Date: Nov 2014
Location: Detroit, MI
Cobra Make, Engine: Backdraft RT3GT, Arancio Argos/Black Magic, Coyote XS, T-56 Magnum
Posts: 17
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Originally Posted by Grey 65 View Post
I'm not going to argue with you. If you think you know more about suspensions and racing than me lets meet at a road racing track that neither of us have been to and race for titles. Granted you will have to add cash as my car is worth quite a bit more than yours.

I race my car, the shock and spring rates on my car were determined by actual racing engineers. I have JRi racing shocks that were built for MY car, not a BDR, they were valved for MY exact car. I don't have a pair of front struts and a pair of rear shocks, each one is valved for a specific corner of MY car, the left is not interchangeable with the right. What shocks are you running $30 KYB's? Go to the JRi website and see how much their shocks cost.. They don't list the price, why because they are expense custom built for YOUR car racing shocks. You can adjust spring rates at a track via racing rubbers inserted into the springs.. aka NASCAR, road racers have nitrogen filled shocks where you can add and subtract nitrogen to the shocks at the track to effect small spring rate changes to suit the track surface. Cinder blocks? Seriously? My car gets corner balanced on a $4,000 Longacre machine. As a matter of fact I re-corner balanced it yesterday.
My entire suspension is either heim joints or poly, I have adjustable front and rear sway bars, I have adjustable caster lollypops on my car.

The springs rates that come on the BDR are for comfortable cruising only. The car as sold by Backdraft is NOT setup for racing, it is setup for people like you.

BTW: I have been racing in the SCCA since 1996 and I am an aircraft engineer.

This conversation is over. I will not respond to anymore of your posts as you talk like you are an expert on racing and suspensions and you are not.

Kevin.....
And D-bag of the year award goes to......

A simple "I disagree, and this is why....." would have sufficed. Sucks cuz I'm sure a lot of the info is valid and informative, but I tuned it out when you said the car was soft.

This car rides like a car with no suspension at all. I blew out 2 glass windshields due to vibration and bumps in the 3.5 months I've owned the car before switching to lexan. I would consider this car rather hard, it has the compliance of a woman on the rag. A road or track anything other than glass smooth will have it chattering along the surface outta control...yes I'm aware a tuned suspension will solve this but the stiffness is not helping anything.

Anyone else have some actual "non-racecar budget" style suspension mods? Not everyone wants to drop 5-10k on suspension on a car that rarely every sees track duty.
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