coil over spring RCR GT 40?

Dwight

RCR GT 40 Gulf Livery 347 Eight Stack injection

• Sep 13, 2018

• #1

Does anyone know the length and lb rating of the front coil over spring on RCR's GT 40 MKII?

I have one that I think is weak and would like to replace it.
Thanks
Dwight

 

Randy V

Moderator-Admin

Staff member

Admin

Lifetime Supporter

• Sep 13, 2018

• #2

I thought your car was a Mk1?
Most of the time the rating of the spring is either tagged or engraved on the flattened side of the upper/lower coil.. You’d have to remove the spring to see it..

 

Dwight

RCR GT 40 Gulf Livery 347 Eight Stack injection

• Sep 13, 2018

• #3

You're correct it's a Mk1. I had a root canal this morning so I'll blame my mistake on my tooth.
I was hoping I could order a spring and then swap them. I'll wait till I get it back from the paint shop.
Thanks Randy

 

C

Tom

• Sep 14, 2018

• #4

Dwight, I run the 650lb up front (7") and 550lb (10"?) at the rear. 2.5" id springs. I'm running QA-1 double adjustable shocks mounted upside down (dials up).

 

Dwight

RCR GT 40 Gulf Livery 347 Eight Stack injection

• Sep 14, 2018

• #5

Thanks

 

G

Graham Endeacott

• Sep 19, 2018

• #6

Swap both springs, not just one. You can usually buy them in matched pairs.

Regards,

 

Julian

Lifetime Supporter

• Sep 19, 2018

• #7

Cobrajet said:

Dwight, I run the 650lb up front (7") and 550lb (10"?) at the rear. 2.5" id springs. I'm running QA-1 double adjustable shocks mounted upside down (dials up).

Click to expand...

That is some serious spring for such a light car, track only?

 

Julian

Lifetime Supporter

• Sep 19, 2018

• #8

The spring rating is the force required to compress it one inch, if you have a press and some scales you can test the pair and compare.

 

C

Tom

• Sep 19, 2018

• #9

Joules5 said:

That is some serious spring for such a light car, track only?

Click to expand...

Some track use but the majority is on the open road/mountain drives. It has a very "plush" ride with the 15" Avons and handles well on the track. No sway bars are installed so it helps to increase that rate to minimize the body roll. Notice the shock angle at the front of the RCR above compared to the near vertical mounted rear shock. Those spring rates work real well on the RCR, IMO.

 

Last edited: Sep 19, 2018