G40 Cup Sprint/Hillclimb Car

[Ian Johnson]

I can only go on the history given to me......anythings possible either way it's only ever been a race car since 1991, registered as a road car in 2006 to comply with msa road going production class rules but never been in the road. Shame there isn't a register with chassis numbers anywhere.

[hardchargin40]

Hopefully i've attached this ok.  Pic of the car in its VW Cup and supercoupe guise.

[randombadger69]

Managed to get a look up Snett on Sunday; used a trip to Snetterton dump as an excuse to the wife. Unfortunately couldn't stick around for long as we had company for lunch. There were quite a few tasty looking (& sounding) motors knocking about 

G sounded good, how did you get on?

Short flyby clip..

https://m.youtube.com/watch?v=Vtukcp-2qmM&feature=youtu.be

[Ian Johnson]

Shame I missed you, Snetterton 300 was a good test and did decent times managed a 2:20.46 but struggled with horrendous brake judder which I have traced to a faulty AP rotor which cost me a lot of time and confidence in braking as pad knock pushed the caliper pistons back meaning I had to pump the pedal before braking hard. Also was 15mph down on top speed of the other class cars 105mph for me 120mph, needed more power to pull 5th gear even with running a 4:44 diff.
I was 2 seconds off the pace but finished 4th in the Highly Modified under 2000cc class. The next round at Blyton on 16th April will suit the G40 better as not dependant on top speed, also I have new rotors being made and new DS3000 pads on order. Hopefully will have my pedal box installed aswell for then.
Hoping to have fiberglass hatch and polycarb windows also fitted for round 3 on 21st May.

little action shot from Snetterton lol

[Ian Johnson]

Managed to get the brake bias pedal box in still retained OEM cable clutch but had to use a mk2 golf throttle cable as OEM is far too short. Custom discs 300mm x 22mm 12 bolt also fitted along with DS 3000 pads.
Exhaust manifold also machined as warped after Snetterton again.

[Ian Johnson]

Update: Uprated O/S Driveshaft needed urgently if anyone has one?

Round 2 of the JSS ended early again..............snapped O/S driveshaft on 1st timed run. On a positive note the Bias pedal box and brakes worked for the limited amount of braking done lol



My GRP Hatch turned up on Saturday so just waiting for the Polycarb windows and can then shed some weight before Round 3 on 21st May......be glad when I can just get in and drive without having to fix/modify.

[Ian Johnson]

Made a start on removing some more of the "road going"  parts that had been added. All glass removed, door cards and added window winders etc. Rear hatch removed and pins installed for the GRP hatch. GRP hatch is only a single skin so added Ali strips to top and bottom for mounting. Will cut out the window aperture once the polycarb windows arrive.

[ereeiz]

Are your rear arches standard? I need to get some for my conversion and can't decide whether to try generic ones or spend more time / money and get a std G40/GT? kit.

[Ian Johnson]

Rear arches are Golf G60

[randombadger69]

4th ain't too shabby for >2000cc. Nice going!

Gutted about the driveshaft! I guess that's motorsport.. pushing components to the limit!

I'd be interested in the weight saving of the glass; if you're able to get a rough idea?

[ereeiz]

There was someone on here (and PSD) who I seem to remember did a very detailed list of weight of the panels and glass vs plastic versions. Mark Hunter I think? I forget his username but pretty sure he listed the weights, etc. Sure yoof or someone would know too.

[Ian Johnson]

4th ain't too shabby for >2000cc. Nice going!

Yes not too bad considering the power differences, most others are around 240bhp, my 177bhp is ok so I'm trying to get the car to around 700kg to get a better power/weight

Gutted about the driveshaft! I guess that's motorsport.. pushing components to the limit!

Yes but was shocked tbh, the bang made me jump lol.......im still blaming myself for being too aggressive, I pushed too hard not knowing the circuit and knowing rain was due at 12:00 so would only have 2 dry runs. All but 1 of my competitors were there the day before on a trackday or were familiar with the circuit. i'm usually pretty smooth........lesson learnt.

I'd be interested in the weight saving of the glass; if you're able to get a rough idea?

the rear hatch and window is the most weight, once my Plastics 4 performance windows turn up I will weigh them, rear window is bonded to hatch so that weight will be together. My GRP hatch without poly window is 4kg

[Ian Johnson]

Weighed the GRP hatch and 5 polycarb windows and came to 15.5 kg.
Will weigh standard stuff poss tom

[randombadger69]

Nice! The bootlid must weigh more than that on its own!

Thanks

[Ian Johnson]

weighed the rear hatch along with all glass.........came to 28.5kg, so a weight saving of 13kgs. Not weighed the door cards, door mirrors, window mechanism and internal door skins but expect close to a total weight of 7kgs giving me 20kg.

Fitted the polycarb windows today: