@Nev
Two weeks ago we had the annual VX220-meeting in Bitburg. I had the opportunity to be a passenger in a SC'ed VX which has been equipped with the TC by some other guy from one of the german forums. He took my installation instructions as a blueprint not asking one question about it. He simply fitted it and it works perfect. He did a very good job there obvoiusly. And again one of my ABS line filters does its job so you can set up the TC to work from 10km/h / 1300RPM up not getting any unwanted cuts. Was a joy to experience that car, knowing my installation manual has been taken to do the mod and the result is simply perfect.
But take into account: pure installation took me about a week of work. In an OEM fashion of course. Wouldn't do it with less acuracy. Waterproof sealed AMP connectors, properly bundled cable harnesses with TESA 51608 fleece tape the automotive industry uses for their original wirings. Take some time, get the power supply at the right places (grounding point is most delicate for a failure free function) and use my standard software setup as a starting point. You can save MUCH time using this. It took me many days and nights for test driving, optimization, writing new setups, documentation etc. The result is the (I think) most comprehensive evaluated setup for this unit used with VX220s and Lotus Elises and Exiges.
Had intense mail contact with Mike Broadbent from RL during the weeks of system implementation and setup. He told me that all cars using the Lotus Elise base share the same issue: you have problems with battery ground because of the many plastic parts. And all cars of this type he knows which are equipped with the RL TC have problems with signal spikes on the ABS lines below about 30...40km/h, forcing the starting point for the TC to 30km/h or more. I didn't want to accept that! So as an engineer in R&D for automotive hardware I started to experiment on calming down the signals ond the ABS line connections going to the TC. After some try and error I came down to a filter network that is doing its job very well. Sold 20 of them in germany in a first batch. Second batch is just starting to be prepared.
So as a resumee: I spent a lot of time and money to get a really good setup of the TC in the VX220. But it was well worth the work. Even Mike Broadbent congratulated me via mail when he saw my solution. He did not think that it could be possible to get the TC working down to 10km/h with this type of car. It is.
If you have a power of 400HP+ a properly installed TC is absolutely mandatory. This is not a matter of fear or incapabilty of driving. This high power needs more control the right foot is able to provide physically. Especially with a Turbo Charger there is a much to big lag between the pedal and the engine reaction. In some cases this time lag leads to losing control of the car, don't care how fast your reaction was, the engine is too slow, by far not as direct as any N/A. The TC has a big advantage over this, it overcomes this lag by just cutting injection pulses, so power loss is spontaneous, without any lag. The moment the TC detects a loss of grip, the power is instantly reduced, even under full boost. That's an absolutely great thing! And it's fun to play with. Driving gets even more exciting with the TC, but it gets safer too.
Edited by cs_, 18 August 2011 - 10:06 PM.
alas it does need reving to 7k to find any real power though lol
You are def going to have to take into account tyre temps especially as the weather starts to cool but always found the idea of TC on a vx some what wrong based on its back to basics driving experience. Always nice to have the fear of death in the back of your head to control your throttle inputs
Break some traction and use that diff 
and with no windscreen and been too big for the car certainly adds to the drama
DG
Wibble !
And in the most-improbable-incredible-unlikely-to-happen moment you ever will lose grip in a moment you really relied on it and possibly not being a 100% concentrated and in 1A condition it probably will save your car. And your ass as well.
Seen some people thinking TC was a toy nobody needs that did in fact sound clearly different after a decent testdrive. Just give it a try. In awake moments you need the thrill you may always switch it off. But it works so perfect, I am sure you will only switch it off if you intentionally want to show off burning some serious rubber. Any other situation you will enjoy it working and the fun it gives you driving.
Sorry for my english, may read a little clumsy.
6: Did you use Castens DIY guide (user CS_ on here) ?
Pip pip,
Nev.
