Another Wreck, another Race Car.....

[Peter Jones]

Lap times as always. The fastest time for an under 2000cc Sports sedan at PI is 1:42 I'd like to see how close I can get to that.

I think I can get below 1:50 this season with some more practice.

[Petska84]

Er.....Pete.......I think I can see where you can improve the power to weight ratio.

Cheers

Paul

That's a little harsh?

[Peter Jones]

Remember that gearbox I blew up at the end of last season? I pulled it apart today to find out what it was that went bang.

I was in second gear accelerating out of a corner and second gear clearly lost the will to live.



























Rest of the gearbox looks OK. I just need a close ratio input shaft and a new second gear to put it all back together.

[Martin]

Ripper!

[gazzmo]

Given the strength of VW manual transmissions I would think this is not a common parts failure, i have seen first gear cogs stripped because of enthusiastic launches but second gear cogs, could there have been an issue with the clutch engagement that contributed or marginal input shalf alignment to second gear cog?
Just a thought please continue.

[sports racer]

Impressive.

Just how much power and torque is this engine making?

[Peter Jones]

These 020 gear boxes aren't renowned for their strength although it is usually the diff rivets that are the cause of that reputation.

All these boxes are getting pretty old now could be an age related fatigue thing contributing too I guess.

Box has about 1000km of race use since rebuild so all the bearings should be OK and looked alright when I dismantled it.

Redline synthetic oil too.

Clutch was fully engaged when it blew.

I down shifted to second on the entry to Honda and was feeding the power back on through the corner. At exit I went full throttle and the gear let loose.

I captured it on video too!



I think the difference this time was traction. This is the first occasion I'd gotten my Hoosier slicks up to temp. Normally I'd be spinning the wheels out of this corner, This time it hooked up and blew the gear.

[Peter Jones]

Impressive.

Just how much power and torque is this engine making?

I'm not sure. When I had it tuned at MPC there were issues with getting their dyno setup to work with my little car, I think the plot showed only about 118kW which doesn't seem right. It's built to be in the 250-300 HP range.

The main thing at that point was to set the motor up and do some basic running in. We weren't doing any real power runs as the motor hadn't been run in at that stage.

I've got some clutch adjustment to do and then the plan is to get back on the dyno for a retune. I should find out then what the numbers look like.

[Jarred]

wow, that's well and truly seen better days!
I spose with the slicks on, you found the weakest link!

[Peter Jones]

Crappy day of racing at Sandown today.

Cam Angle sensor issues kept shutting me down.

My best and only timed lap was 1:32

However I was still faster than the only other competitor in my class and about 28th overall in a field of 81.