LCR light weight edition, Getting broken up

Aye I'll tow 1,600Kgs
The LCR will be about 1,250Kgs leaving 350Kgs for the trailor

lordgibbness said:

When I was at the garage today someone who brought his race-car down from Scotland had a trailer tyre blowout on the motorway out of the blue. I'm not sure if the trailer had high-load tyres for the weight of the car he was towing...

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Good point there, never really thought about checking this, cheers

cuprabaz said:

Who's car's finished??.

Twin axle Brian James or Ifor Williams are the only ones i'd use personally. I think you'll be lucky to find a trailer as light as 350kgs.

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Your track car been on the track yet?? lol

dave_ph said:

will need to remove those speakers after all to save enough weight to tow the lcr

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Yup speaker will be going

Update

There has been quite alot going on this past while.

I've finally done my first 1/4 day, I had the car stripped out with no spare and no passengers seat and got 14.451 secs @ 98.3MPH which for a 210BHP 209ft-lbs LCR I think aint bad. I was managing to get my 60ft times in the 2.2secs consistently. I'm pretty sure I could have these down a bit if the cues were shorter and less cars were blowing up.

Prior to this I had decided that I was getting a full FIA approved weld in roll cage. There are limited options for this on the MK1 Leon. So had settled for a Custom Cages one with full triangulation to the front turrets.
But when I was at Crail (for the 1/4 mile) I was hearing a knocking noise when going slow over runts and bumps. So there was something wrong. TBH I was thinking it was the ARB mounts coming loose (even though the bolts are loctited in) but on investigation is seems I have a bigger problem.

I've had a copy of the work shop manual ELSAWIN for a year or so which has proved invaluable for the modifications and fixes I have done. But when following the torque settings (to the book) for fitting the dog bone mount to the under side of the clutch housing, I stripped this thread. I did manage to get this drilled and helicoiled but from this point on I was riding my luck a bit.

So on investigating the knocking I have found the boss where the DBM front bolt goes into the clutch housing as split
So that has put pay to the roll cage purchase!!!

So, as I don't like doing things by half, and I was going to do it anyway at some point, I'll be getting my gear box refurbed and will be getting a LSD fitted
Hopefully my SPEC stage 1 clutch and fly wheel are all still in good shape

I have done a bit of investigation into the different LSD's.
Usually it seems people just either go for Peloquin or Quaife. They are both ATB differentials. There is a newish one on the scene made by Autotech called a Wavetec

http://www.autotech.com/prod_drive_wavetracDiffs.htm

These differentials have moved on from the traditional ATB ones to hopefully give more traction. There isn't alot on these yet as they have just been released so it's going to be a bit of a suck it and see.
I now have a good price for this differential and a few good prices from good gear box companies too.

The biggest problem I have just now is getting a clutch housing. Scrappers won't sell these separate to gear boxes so I have to buy the whole lot. A clutch housing new from Seat is £350, a second hand gear box delivered is about the same.
Basically what I plan to do is get the as good a gear box as I can, send this away to get refurbed and fitted with the diff. Once this is done swap this out on my car then get my ones refurbed either as a back up or sell this one.

So winter plans are;

- Fit refurbed gear box and Wavetrac differential

- Fit harnesses with bar or screw in fittings

- Fit poly carbonate windows

- Fit new induction filter and run a good cold air supply to it

- Fit 284mm rear discs with TT carriers and callipers

- Fit catch can with uprated PCV hoses

With the harnesses fitted I can remove the air bags (will pass MOT).
With the polycarbonate windows fitted I can remove the inner door skins and electrical window motors and foldable wing mirrors. I'll remove the whole dash and strip out what I can from there too. The air con system will be removed.
The BMC CDA system will be removed and a new Dual cone system will be fitted.
I have a PCV leak so the new hoses will sort this out and will fit a catch can. This will allow me to clean out my FMIC and boost piping.

So planning on being pretty busy during the winter.

jonjay said:

Really really good update on the progress of the car Willie.

Interesting on your comment about how differentials have moved on. When i done my research I found that these new differentials dont really behave any differently to the torque bias ones out already. At the end of the day they are mechanical so there is only so much that changes apart from how much lock they have when accelerating and deceleration. Of course I am open to more knowledge on this subject

Good move on removing the BMC. From spending time at AmD every car with a BMC system never got the power they were meant to. They found reverting back to the stock airbox did better, they simply cant provide enough air for tuned 1.8Ts. I strongly recommend the probee twin cold air feed. Having done this on mine the difference to the top end is very notable. It is a true forced induction system like the stock airbox but much better.

On changing calipers/discs for the rear. How have you figured out the bias change? Last thing you want is to much bias to the back to unbalance the car especially now all the weight has been removed.

I should be revealing my list of engine modifications soon

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Alright bud,

there is a guy on here, Dave B, he's also on UK-MK1V. He knows his stuff about braking. Not just hos info but also my feelings on the track.
On Knockhill there are two points on the track were I'm braking from 100MPH+ to one point 80 another point 30MPH. This shows, even with a stiff suspension set up, that the car wants to front end dive freely. This can be helped by fitting bigger rear set up to pull the back end down, and to a more controlled stop.
Also we have a few members with the ECS stage 5 rear 2 piece 308mm discs. They confirm this is how they now feel there set up. The 284mm is a bit of a compromise over that one but at under half the price it's the way I'll head first. Also getting the new rotors for the ECS kit isn't as straight forward as it should be.
Also with having a lighter rear end now I'm betting that going the half way step is the right way for me, I worry the 308mm will be a bit OTT for my set up.

As for the diff, take a read through the Wavetrac bumf, its sounds like the dogs balls.
As we have a few Leons with diffs now it will be interesting to see the differences at next years National meet or a SCN track day, which ever is first.
Also the Wavetrac is about the same price as the others and is a newer design so I'm hedging my bets that it will at least be as good as the other, but hopefully better.
The BMC looks the piece but I've never been about style over form, initially I was told this was the best but there has been alot of logging on this to prove its not.

Rob, never really been into these either but was interested to see what the car could do.
Not too sure if I'll do one again.
Looking forward to seeing how the brakes feel and how the diff changes things

I'll be fitting a dual cotton cone with cold air feeds, not too sure if this will help but 100% convinced it won't hurt