Tow hooks - sprinting

Tow hooks - sprinting

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Discussion

CQ8

Original Poster:

787 posts

228 months

Thursday 2nd February 2017
quotequote all
I've recently bought a 2009 Renault Clio RS 200 to do a few sprints and hill climbs in. I've checked the MSA regs and I think it says the tow hook needs to have an opening of 60mm.

Here's the standard tow hook for the clio which has a 35mm opening, I thought this would probably be too small



When I competed in my 997 Turbo I used one of these



Every scrutineer that checked the Porsche was happy with that tow hook but it's only 50mm.

So my question is am I likely to get through scrutineering with the standard Renault tow hook?

If not, I will have to make something to work as, due to the M20 bolt size and the distance from the front bumper to the screw in point, there is nothing aftermarket that fits.

Something like this, using an M20 bolt and some bolts and washers could work. I would need to find someone to machine the hole in the metal of the tow strap to accommodate the M20 bolt which is much bigger than the standard bolt hole on these straps.



Any advice would be greatly appreciated.

Galveston

715 posts

200 months

Thursday 2nd February 2017
quotequote all
What class are you running in?

I thought for the standard production classes (which I run in) it's more a case of "removable tow hooks should be fitted if possible" or something suitably vague. I'm an absent-minded bugger who always forgets but it's never been mentioned at scrutineering.

CQ8

Original Poster:

787 posts

228 months

Friday 3rd February 2017
quotequote all
Yes, it would be a standard production car class.

Thurbs

2,780 posts

223 months

Friday 3rd February 2017
quotequote all
Why not loop the material through the standard towing hole?

88racing

1,748 posts

157 months

Friday 3rd February 2017
quotequote all
Thurbs said:
Why not loop the material through the standard towing hole?
But then you would have to stitch it yourself, to a sufficient standard.

LordHaveMurci

12,045 posts

170 months

Friday 3rd February 2017
quotequote all
Galveston said:
What class are you running in?

I thought for the standard production classes (which I run in) it's more a case of "removable tow hooks should be fitted if possible" or something suitably vague. I'm an absent-minded bugger who always forgets but it's never been mentioned at scrutineering.
Likewise. Plus I only have 1 toweye so would I fit it front or rear?

The once time it was required it was quick & easy to remove from glovebox & screw in, marshalls were perfectly fine about it.

Trev450

6,327 posts

173 months

Friday 3rd February 2017
quotequote all
I use the widely available webbing tow straps but have attached them to my towing eyes via the devices used by mountaineers (carbiners?)

eastlmark

1,654 posts

208 months

Friday 3rd February 2017
quotequote all
not sure there was a tow eye requirement in sprinting when I used to compete. some even make the standard tow eye into a timing beam strut.

CQ8

Original Poster:

787 posts

228 months

Friday 3rd February 2017
quotequote all
Thanks everyone for your comments. It looks like I might be worrying about nothing and the standard tow hook will do the job.


CaterBram

128 posts

176 months

Sunday 5th February 2017
quotequote all
Whilst the requirements in the Racing section of the Blue Book go into detail on what towing points should be provided the section for Speed events just says...

(S)10.1.15. It is recommended that suitable towing point(s) on all cars shall be clearly identified, and suitably marked, using a contrasting bright colour, accessible from the front and rear.

however something to think about, is when you are stuck in a gravel trap where do you want them to pull you from, the easier for them the less likely you are going to get additional unintentional damage.


tapkaJohnD

1,945 posts

205 months

Sunday 5th February 2017
quotequote all
You need neither a fabric, nor a wire tow loop for sprinting.
Just the 60mm tow loop
S.10.1.15,
"It is recommended that suitable towing point(s)
on all cars shall be clearly identified, and suitably
marked, using a contrasting bright colour, accessible
from the front and rear."

See: https://www.msauk.or...etevlow-res.pdf

Ooops! Cater ahead of me

TroubledSoul

4,600 posts

195 months

Thursday 9th February 2017
quotequote all
Looking at the regs for hillclimb, I can't even see mention of the 60mm requirement. Am I going blind?