Prism7guy's track car

[Prism7guy]

It's been a while since i updated this thread, quite a bit has changed!

Since the old brake pads had worn out i decided to put my AP racing 4 pots to use rather than spend money on more pads for the standard calipers. Took loads of measurements and started drawing things up, i wanted to fit 310mm or 315mm discs under my 15" TD Pro race 1.2's if it was possible. In the end i went with 310's and had to get some custom made pads to suit the setup, the biggest issue was spacing the rotor back as far as i could towards the ball joint, meaning i wouldnt have to space the wheel out so much, but ensuring i wouldnt have any balljoint to rotor contact.
I'll let the pictures do the talking.


(Testing how far i could space the rotor back)


(Testing the caliper position etc on a spare hub)


(Mock brackets checking clearance in the wheel, also seeing how far the wheel would have to be spaced out)


(Started turning the bells)


(Second end of the bell being turned)


(Bell drilled and countersunk)


(Caliper bracket milled)


(Few ally bits hard anodised black)


(Calipers after powder coating)


(All new pistons, seal kit, disc to bell mounting kit and bleed nipples)


(On the car)


(Wheel on)

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I also decided it was about time i sorted out the rear beam. I had some 21mm torsion bars and a 30mm anti roll bar stashed under my bed for months









Basically fitted two new trailing arm shafts, all new bearings and seals etc.


Since i go to the nurburgring every year i needed to get some new seats without the ears which wrap around my head to meet the new rules/regulations, also had to add padding to the roll cage wherever i could touch it. So this is the result of that:







I think the final thing i did before i went was to have the oil cooler lines crimped properly rather than use jubilee clips as i noticed one had started weeping a bit and didnt fancy the idea of losing all the oil randomly.



I also bought and fitted some new topmounts for the front, giving around an extra 2 degrees of negative camber, after fitting them i re-tracked the car and set it to parallel toe just like before.

I eventually got to the 'ring, nice weather all weekend for once but it's way too hot in a car with lexan windows and no real way of cooling it down.
Got nine successful laps in over the weekend, but the track was almost constantly closed on the saturday so only managed to get 4 laps in that day. On the 4th lap i carried too much speed into a corner with a BMW ahead, they braked and started to get close to the kerb leaving not a lot of room for me so i had to get two wheels on the grass and go over the high kerb, that whacked the exhaust and started a crack around where the downpipe enters the centre silencer, didnt take long for it to completely snap.



But i carried on with it like this through sunday, turned everyones heads in the 'ring carparks with the state of how it sounded, not for it being a nice sound either.
I'm sure it was down on power/torque like this as it would bog down in 6th in places, but i managed to get a new pb of 8:35BTG so all in all it was a successful trip.
https://www.youtube.com/watch?v=lCmU-aVTVKU

Since i got home i got the exhaust off, took out the perforated tube that ran through the centre box and welded the tube back onto the box. It doesnt seem much louder, i think it may be down on power a little but it'll do until i get a new exhaust sorted, it turns out this one is only 2" in places so i don't know if going for 2.25" would release a bit more or not, i know it seems to feel a bit restricted from 6,500rpm onwards. Anyway, i'm hoping to be boosted in the next couple of years so i'll probably go for a 2.5" system making sure it will keep the car quiet enough for trackdays.

I'll end the update with a few pic's from the 'ring.