Hillclimb & Sprinting

[Chris H]

ACD10's do heat up very fast, they are also 13" so there is very little unsprung weight and finally they have super soft compounds so we can not really run for more than one or two laps. Before them we ran on Kumho V70A K20, these were also very sticky, but they were the first 1b's I had ever driven on so they were going to seem sticky. It is worth noting at all these tyres come in lots of different compounds, we normally go for the stickiest

As for driving to the track, few people do it but they get lots of respect for doing it and we will always help out as much as possible with anything they need. The big issue is you have to be that little bit more careful about your enthusiasm

[David]

For those interested, the regulations and entry forms for the BARC SBD Speed Championship (one of the friendlier championships, and not dominated by the "super professional") are available at http://www.ukmotorsport.com/barc-speed/regulations.html.

Open to members of pretty much any MSA affiliated club! One of the better ways to spend £18 IMHO.

[MattD]

Guys

Getting things together for my second ever sprint, with the previous go being in 2006

Just wondered if the experienced of you can help with the following....

J5.4.2 - Secondary closure spring on throttle.
I've got a Zetec, running on Jenveys TBs. This currently has two spring's.
One is the horizontal spring on the cable linkage, the other is the small radial spring on the butterfly spindles between the pair of TBs.
Seem to remember some muttering that this wasn't good enough last time out.
What has everyone else done with this ??

Plus probably need to find a scurtineer for some clarifcation of 2010 regs.
J5.16.6 - CAT converter compulsory for petrol vehicles manufactured after 31/12/99.
My Stylus Kit - chassis manufactured July '99.
SVA pass / V5 logbook in Sept 2003 (4 year build)

CAT required or not ??

J5.20.8 Except for racing cars, be fitted with a windscreen
S10.2.1a Windsdcreens are manadatory for closed vehicles, free for open vehicles.

My car has an aeroscreen.... legal or not for Roadgoing ??

Any comments ?
Thanks

Matt

[David]

Hi Matt

Some experience to offer........

Throttle springs. Different scrutes see this in different ways. I run a Jenvey throttle linkage with double horizontal springs which, together with the radial spring on the TB shaft, has always passed scrute. Son races a Striker with the 750MC (on Webers) and had the same set-up as you. He received a scrute warning which was remedied only after he added a small lever arm to the end of the shaft to connect an additional spring to the cylinder head! At a sprint, your set-up should be adequate.

Cat. Date of first registration seems to be the determining factor, so you should need a cat. Nobody checked mine (physically) last year, but one scrute asked to see my receipt.

Many championships seem to be getting themselves in a tizz about the new tyre rulings, but the BARC/SBD Speed Championship has maintained the eligibility of aeroscreens for kit-cars. As last year, expect to be chucked into the class with slick-shod cars on the day at some events (it's perfectly possible to run a different "class on the day" from your championship class). Borough 19 MC also seems relaxed about screens.

HTH

David

[MattD]

Hi David

Cheers for the feedback.

Tyres are list 1b - 888s.
Quite prepared to get dropped into Sports Libre if it comes to it.... not doing a championship, just want to do the local events & see if the bug bites (which it will).
Not having a CAT might mean loss of entry fee / not being able to run though !

Rgds
Matt

[David]

Matt

Cat: competition cats can be got for not much over £100 (not much more than a couple of lost entry fees). Son had his welded projecting from the front of the can to replace the tertiary. Mine had to be within the can (the secondaries join at the can) so it was rather more expensive
Alternatively (though I'm sure that JPSC could never condone such a thing) you could lie with a straight face

David

[JimSpencer]

Hi

Cats - is definatly the date of manufacture of the car - not the registration, but you'll need to be able to prove it...

Had exactly the same problem myself and had it clarified by regional committee to make sure, just refer the scruitineer to the chassis plate, if it says, and ask him to look it up in the book.
If you can't prove it - you'll have to bite the bullet though!

[MattD]

Hi

Cats - is definatly the date of manufacture of the car - not the registration, but you'll need to be able to prove it...

Had exactly the same problem myself and had it clarified by regional committee to make sure, just refer the scruitineer to the chassis plate, if it says, and ask him to look it up in the book.
If you can't prove it - you'll have to bite the bullet though!

Hi Jim

Interesting... I've emailed an MSA Scrute for clarification.
I built the car, so have all the originaly invoices & can therefore prove the chassis manufacture date.
The chassis plate itself doesnt say any date (but a new one could be made)

[MattD]

Hi

Cats - is definatly the date of manufacture of the car - not the registration, but you'll need to be able to prove it...

Had exactly the same problem myself and had it clarified by regional committee to make sure, just refer the scruitineer to the chassis plate, if it says, and ask him to look it up in the book.
If you can't prove it - you'll have to bite the bullet though!

Hi Jim

Interesting... I've emailed an MSA Scrute for clarification.
I built the car, so have all the originaly invoices & can therefore prove the chassis manufacture date.
The chassis plate itself doesnt say any date (but a new one could be made)

MSA Scute confirms your comments Jim, so I'm in, entry sent for FDMC/ACSMC Rushmoor Sprint on 11th April.

[David]

Hi

Cats - is definatly the date of manufacture of the car - not the registration, but you'll need to be able to prove it...

Had exactly the same problem myself and had it clarified by regional committee to make sure, just refer the scruitineer to the chassis plate, if it says, and ask him to look it up in the book.
If you can't prove it - you'll have to bite the bullet though!

Hi Jim

Interesting... I've emailed an MSA Scrute for clarification.
I built the car, so have all the originaly invoices & can therefore prove the chassis manufacture date.
The chassis plate itself doesnt say any date (but a new one could be made)

MSA Scute confirms you comments Jim, so I'm in, entry sent for FDMC/ACSMC Rushmoor Sprint on 11th April.

Interesting -- was definitely not my understanding from a scrute last year. We should try to establish a "competition elegibility" thread in this section so that all can learn. i'll maybe think about it when less busy.

D