Another Wreck, another Race Car.....

**Peter Jones** · 06-04-2014, 07:36 PM

**sports racer** · 06-04-2014, 10:57 PM

Are you using full power now, everything run in? How competitive is the wee beast?

Looks awesome.

Cheers

Paul

**Peter Jones** · 07-04-2014, 03:35 AM

I've got to re-tune the car yet to get the most out of it.

The new gearbox is sorted out now and is awesome to drive, much more acceleration than before.

The first time I ran it I had a few clutch issues that I sorted out with some help from Eurospec.

I've got to sort the cam sensor out properly. I need it to run sequential injection. I've been using various modified ABF and KR dizzies and I think I know what is needed now.

Competitve? I'm placing in the top 3 in my class every round of the supersprint series but I'd need to be a better driver if I were to run in sports sedan.

I've still got a lot to learn about driving this setup.

**Jarred** · 07-04-2014, 08:44 AM

Looks great Pete. Glad you're getting it sorted.

Will you be out at easter monday at sandown (assuming that there is an event on then?)

Do I spy some extra edging on the front lip?

**Peter Jones** · 08-04-2014, 02:03 AM

Yep extra rubber lip on the splitter and an eyebrow spoiler. Trying to stop lift. Might have to vent the guards or bonnet yet. Car still wants to be an aeroplane at 220 km/h

No racing planned for Easter.

**Peter Jones** · 12-04-2014, 02:24 PM

I dropped in on Euro spec today as I'm in the US for work this week. Sonny has come up with a suggestion for a better camshaft sensor based on an Audi V8 unit. I'll see if I can get it setup over Easter.

**Peter Jones** · 04-05-2014, 11:29 AM

I just finished making a new distributor!

Background: -

My race motor has an ABF head and I need a cam position sensor to let my DTA ecu know the relationship between the cam and the crank as I run sequential injection and ignition.
The block is 06A so I'm using the internal 60-2 crank wheel for crank position.

I had been running an ABF dizzy but had dramas with timing, oil leaks and and dodgy hall effect sensors.

I got it working reasonably well but it's not a terribly serviceable item when you need to swap out a sensor track side.

At one stage I tried a KR style 4 vane dizzy which would start about 50% of the time. (Actually exactly 50% of the time unless I turned the sequential off.)

The KR dizzy leaked worse then the ABF one .

The folk at EuroSpec showed me how the Audi V8 pickups work with the vane bolted directly to the end of the camshaft.

I thought I was going to be able to make an extension piece for the end of the cam and run it the same as the Audi V8 but that was quickly going to exceed my rudimentary machining skills and the opening in the end of the head is larger in the Audis too.

So here's what I came up with. I made my own dizzy body to accommodate the ABZ style sensor.

The drive dog is from a KR dizzy, the shaft is cut down from a 2E dizzy and the vane is also from the 2E dizzy.

Bushes are longer and thicker than either KR or ABF and the seal is a little bigger too.

One of the goals was to make swap outs quick and easy at the track side. Pulling a complete dizzy, especially the KR with the slotted mounts meant re-timing the setup.

The theory was that just swapping the sensor shouldn't require any re-timing and avoid dragging out the laptop.

To check this theory I tried a number of sensors in the new "dizzy" Interestingly, there's a few degrees between the three I tested. One is an Audi prototype unit (notice it's milled not cast) and two brand new generic units of the same brand.

The DTA S60 doesn't seem fussed about the small difference between them, it seems to have some un published tolerance range.

This is the ABF dizzy I was using