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-   -   Boxhead's new race car for 2013 (http://www.clubcobra.com/forums/australian-cobra-club/118042-boxheads-new-race-car-2013-a.html)

boxhead 06-04-2013 10:33 PM

Just went out for a look at the track, should be nice tight racing, but there are some stones in the track, hope I dont get hit in the head by one.

Gav 06-04-2013 10:47 PM

Have you got your camera organised for the weekend Dave?

boxhead 06-04-2013 11:53 PM

Thanks for reminding me.

Aussie Mike 06-04-2013 11:55 PM

Fiberglass repairs turned out good.

Are you going to keep a log book of your suspension setups so you can build up some setup data?

Cheers

boxhead 06-05-2013 12:29 AM

Already have that written up and a spreadsheet on laptop :-)

Also looking at other fast cars to see what is different, have been talking to shockie guy who comes up with buggy racers, he recomended to knock 20lb of nitrogen pressure out of shocks, then test to see what is happening.
Currently has 170lb gas each shock in rear, with 150lb springs, shock pressure is currently overpowering the spring rate.
He recommends to never go higher with gas pressure than what springs are rated at.
Also need to adjust valving so rebound is faster, on whoops the back end starts to sink down, as the shocks are not full extending before the next bump.

Here are some shocks working on a car that he adjusts for Finke.
OBR Trophy Truck Finke Pre-running 2013 - YouTube

OBR Jimco Finke Pre-Running 2013 - YouTube

Towmaster 06-05-2013 07:10 AM

OMG they rise just like motocross bikes!
That is awesome! Trophy truck for you one day Dave?

Legless 06-05-2013 04:47 PM

You in training for the Finke this weekend Dave? :3DSMILE:

boxhead 06-05-2013 05:59 PM

Only if I win the Lotto Ash.

Leg, no training, racing.

Not racing actual Finke but racing in round 2 of Oz champs for TrophyKart, we have a short course cut on the prologue track for Finke.
There are about 20 of us Racing Sunday and Monday.

boxhead 06-10-2013 04:36 PM

Uploading some in car footage from final race.

Here is a little one showing a roll over I had.

While passing a car he cut in on me and jammed me against the tyres on side of track.
I raced the next race and in car stuff is from final on Monday morning.
Dave roll Finke TrophyKart race 2, 2013 - YouTube

Tenrocca 06-10-2013 04:56 PM

How did you feel after that Dave? Bloody hell!!

boxhead 06-10-2013 05:04 PM

Still have sore shoulders and headache.
Car landed flat on its roof, so all my weight hit the shoulder harness's

Beter lose some weight so I can get past in time next time.

boxhead 06-10-2013 07:22 PM

And here is in car footage from Final on Monday morning.

TrophyKart final in car Finke - YouTube

Gav 06-10-2013 09:07 PM

I bet that roll over woke you up!

OZCOBRA 06-10-2013 10:15 PM

Did you clip the perimeter tyres???
Pity the camera work finished mid air!!:p....Glad you got out ok!!

boxhead 06-11-2013 12:13 AM

Yeah, I got jammed into the tyres, Camera man was my brother in-law, he had the emergency vehicle, so had to kinda stop and get moving.

750hp 06-11-2013 02:11 AM

Jeez!!! Good effort to saddle up for the next race!

Rog246 06-11-2013 04:13 AM

Looks like you got some serious air there Dave :p
As long as you're okay, that's all that counts. You should be able to get a few free beers relating how you got AIR there mate.
Rog

boxhead 06-12-2013 02:56 PM

Yeah fairly rattled around, still stiff in the shoulders but getting better each day. Should be all ok for next race on the 23rd :-)

boxhead 09-01-2013 09:56 PM

We had another race out here yesterday.
So finished body repairs and prepped the car through the week, painted Saturday morning and was all ready by nighfall Saturday.
[IMG]http://i270.photobucket.com/albums/jj100/cobraboxhead/Trophy%20Kart/46941AFF-5888-49DF-B5E7-****A2A91CAB-7064-0000069562B00FC1_zpsc0f9a8db.jpg[/IMG]

Loaded up Sunday and headed out,
Was going well, there was 9 competitors, reality is I am not going to beat the top 4 guys (young guns from speedway and go karts) so I was competing against the rest in my mind
Heat 1 I started 4th, ended race in 6th.
Heat 2 I started 2nd and finished 4th.
Heat 3 I was from rear of field in 9th, ended up 6th in that one.
Heat 4 I started 7th, was up into 6th pretty quickly but then lost all drive out of a corner and the kart stalled, couldnt get it to fire up again, pulled off the track and checked it out, found the chain missing.

Fitted a new chain but then went to fire it up and found no go, would fire up but not run properly.
Consensus seems to be that the keyway of flywheel has sheared and this puts the timing out for spark.
So that will be inspected through the week.
Still had a ball and great fun.
Here are some pictures from the final.
http://i270.photobucket.com/albums/j...ps6d43a8e2.jpg

http://i270.photobucket.com/albums/j...psc9aa8fa5.jpg

http://i270.photobucket.com/albums/j...ps664f1c0c.jpg

http://i270.photobucket.com/albums/j...ps57c6f539.jpg

http://i270.photobucket.com/albums/j...psacb6ccaa.jpg

Dimis 09-01-2013 11:50 PM

Seriously, that looks like a little too much fun to be legal.
Well played Boxhead. Good call.

PS: Sorry to hear of the damage your kart sustained :(


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