Well I did a nice 2nd gear 8000rpm "tire warmer"...........moved up to the start line........and on the green (well maybe amber !!) side stepped it at about 7000rpm..............and BANG !!!

Hmmmmm a gearbox full of neutrals .......and a nice clunk sound when you release the clutch.

I guess after 15 years and over 1000 launches something in the drivetrain had to let go !

So I loaded it up on the trailer (glad I trailered it there) and I can now grab the drivers side axle and move it up and down on the gearbox end. Here's hoping its just a smashed CV and not the Quaife !!!

Surely it wouldn't be the Quaife!

Bummer dude.
My bet, diff output shaft.....done a few of them over the years . Don't know Quaife's but I bet it's a vw part, not the diff.

Hi

If your running bug output shafts they are the weak link, I broke one through my own stupidity.

Steve

I think it will be the cage in the CV that holds the balls that has let go........I will have a look on Saturday or maybe tonight if it stops raining !

Get some photos of the damage, would love to see what can happen to a box when been used properly.

It'll just be a CV.

the joys of Drag racing

Hmm... all the hard launches - or more power?

You might need 1 of those 5-Bar kits. I hear they stop gearbox's breakings.

Sorry to hear Craig. Unfortunately, drive line fractures do happen. (I reckon I need psyciatric counceling to get over the number of "fractures" I've incurred over the years) so don't feel too bad
Not having been there, be careful when doing burnouts, not to continue the burnout very far past the water. The track gets very grippy at that point (about 2 to 3 metres past the water). in some cases, the traction there is actually better than the start line.
I don't know if Dave will agree, but I believe that many start line failures begin just out of the burnout box and before the start line - especially if you hear the tyres "squeak" during the burnout when driving hard out of the water. The launch just finishes it off

^^^ interesting theory Henry.

And to think I enjoy hearing that last part of the burn out, especially with a squeak .

Matt, it always sounds better when it isn't your own!!

Henry....you've hit the nail on the head, because last night I went well past the water area.

I always try to listen for the squeak.........I was actually showing a mate last night (when I became a spectator!) what to listen for when doing a burnout.

Ah well thats motorsport

Did you really side step the clutch at 7000 rpm, wow thats huge what tyres were you using?

yep.....I haven't really learnt to do a good drag launch yet, so I prefer to give it heaps of revs and just side step. That's why I bought a Go Pro camera so I could get some incar footage of revs !!!

I had the BFGoodrich T/A road tyres on,they are a 15inch 205/65 series......I think about 25.5 inch Dia.

You will have to bring that quick bug of yours out again, maybe we head out in 2 weeks ?

Happy to, a bit hard to predict what I'm doing that far down the track, will you have gear box sorted by then?

Hopefully its just the CV, I will get time tomorrow to have a look...............otherwise I wont have a gearbox ready by then, unless I run a stock one !!

well it was what I thought.....the cage that holds the balls in the CV is in a million pieces.

so time for some new CV's all round I think !

So when will you be back at WSID next cause i wanna come watch some beetles race.

Lucky you...easy fix

Yes..........always good to have the CV's act like a 'fuse'

well at least I have one photo from the night.......looks like more smoke on the right side, the side that went bang.

make that two !

Interesting to see how not all the tyre is 'black' from the burnout (outer edge untouched).........I'm still running camber from the hillclimb days, so I think that needs to be change so ALL the tyre is being used....that and maybe lower tyre pressures!