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Messages - RobT

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CHASSIS / Re: trackday coilovers, what kg?
« on: November 24, 2017, 08:49:10 pm »
I had it made.

CHASSIS / Re: trackday coilovers, what kg?
« on: November 19, 2017, 07:59:10 pm »
Info here

I've sold my Ibiza now but basically I ended up with about 400lb front springs, 250lb rears, 25mm Eibach rear ARB, and an adjustable front ARB which went from about 50-150% what a 28mm regular bar would do. About -2 front and -1.5 rear camber. Slight toe in at rear, parallel toe at front. Custom drop-pin in the upright to raise the front roll center. Car was set up on corner weight scales for even weight distribution. It drove lovely - plenty of traction, rode the curbs and bumps well, didn't roll much at all even on sticky slicks.

Think the car ended up around 900kg, would have been around 60% frint.



MEMBERS MOTORS / Re: Kiwi Seat Ibiza Sprinter
« on: November 17, 2017, 10:27:14 am »
Hi folks - well have sold the Radical after 3 eventful years - learnt a lot, got some great photos, broke some records, got some plastic trophies LOL.

Was going to hang up my racing boots, but have started thinking about a VAG again.

Not going quite so full on this time and needs to stay road legal as I am done with trailering.

Anyone know of any good Road Modified cars for sale?



CHASSIS / Re: trackday coilovers, what kg?
« on: November 17, 2017, 09:02:22 am »
Hi - there are lots of views about this and many things affect it.

But to begin 1kg/mm = 56lb/in which are units something a lot more people are familiar with.

With a golf, the key to handling is to prevent loss of front negative camber in roll, and front nearside compression. This can be done in many ways - suspension geometry, anti-roll bars, reducing the weight of the car, spring rate, damper characteristics (primarily low speed bump).

Putting rock hard springs on is a simple way to achieve this but traction will suffer as the tyre wont be able to ride the bumps. If you drive on super smooth tracks then that's less of an issue.

If you use slicks, you will have more grip which will lead to more roll and correspondingly you will need more tactics to counteract that roll.

I cannot remember the exact figures but I will dig them out tonight for my sprint Ibiza - this ran on big sticky slicks and didn't roll much at all towards the end of development, but equally was not super stiff, rode the bumps well, and was a proper weapon in the rain.



ENGINES / Re: Cooling problem of a different kind....
« on: July 31, 2014, 06:48:15 am »
Sounds feasible. I would try and heat insulate the inlet with a phenolic gasket for head mateing surface, and maybe ceramic coat it? Cam coat in Warrington can help if u tell them issue. Try cool it down.

MEMBERS MOTORS / Re: Kiwi Seat Ibiza Sprinter
« on: July 19, 2014, 11:37:58 am »
Ok, so just bought this, impulse buy :)

So my Ibiza is now officially for sale for 12,995.00, which is a bargain considering the specification and pedigree. Specifications are at the start of this thread. Proven Championship winning race package well developed over last 10 years into a very quick hatchback. If you want to win MSA sprint races in Modified Series Production 1400-2000cc, this will get you there. :thumbup:

MEMBERS MOTORS / Re: Kiwi Seat Ibiza Sprinter
« on: July 13, 2014, 09:25:14 am »
PBs updated - two more so far this year, and would have been three had it not tipped it down on day of Anglesey International. Car is going better than ever.

And it will be for sale after final events of the year - so get yourself one of the most successful VAG sprint cars in the UK!!!



MEMBERS MOTORS / Re: Kiwi Seat Ibiza Sprinter
« on: April 30, 2014, 07:36:45 pm »
Did quite a few mods last year, went testing a couple times over winter to check things over, then just serviced it and out we went. Very pleased with results as the car was very driveable and theres no question there is more time to be had again once i get my eye in.

Ernie was there on Sat also - Andy's dad. I nearly bought a 205 off him years ago before i had my ibiza.

MEMBERS MOTORS / Re: Kiwi Seat Ibiza Sprinter
« on: April 27, 2014, 08:00:48 pm »
Went to Aintree yesterday - new personal best 50.75 secs.

Especially gratifying since I did not compete last year, have been trying to crack 51 secs for ages, and also the weather looked like it was going to rain at any point. Improved with every run through the day and went into the class lead with the last run, only to be pipped by last years overall champ Andy Larton in his very special 106.

Still, coming second when you beat your PB by almost 3 tenths is not so bad.

Car felt lovely - suspension work has gone well I think, and there is definitely another half second to be had now, maybe even a 49-something, which is something I never thought I would get to.


New front brakes have changed the brake bias a bit and locked the rears a couple times so need to look into reducing rear line pressure some more, as my bias valve is maxed out now. Suggestions if anyone has them please. Could shave down the rear pad area if push comes to shove.



CHASSIS / Re: Factory Audi TT-RS racer bespoke FWD suspenson
« on: February 09, 2014, 12:37:23 pm »
Yes it does. And figures from that TT Racer would be a good place to start.........

CHASSIS / Re: Factory Audi TT-RS racer bespoke FWD suspenson
« on: February 09, 2014, 12:18:46 pm »
Toyota's version from the Celica:

CHASSIS / Re: Factory Audi TT-RS racer bespoke FWD suspenson
« on: February 09, 2014, 11:56:59 am »
Dont think Audi do it. The version shown above was made especially for this TT racer. Cannot find an 'aftermarket' universal revostrut so far.

Would seem to give some of the advantages of a dual wishbone but with strut packaging benefits - and critically.....its still a strut.....and therefore for racing the suspension type has not changed..... ;D

CHASSIS / Factory Audi TT-RS racer bespoke FWD suspenson
« on: February 08, 2014, 09:15:10 pm »
Apparently the fastest FWD racer there has ever been - quicker than GT3's in the wet round the ring

Totally bespoke front suspension from Audi Sport using Revo-knuckle type design.....this is the future lads!

INDUCTION / Re: Golf 16v Custom inlet plenum.
« on: February 03, 2014, 10:34:00 pm »
Yeh, like that!

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