R32 Gtr Circuit Car Build Thread

[OLLIE_NZ]

You're a hard bunch to please...........

Anyhow,

Small update on progress so far today

Seat rails welded up, with mounting spuds

Went and purchased a new Sparco steering wheel 350mm with a 65mm offset (offset might be too high but can exchange)

A fair bit of dish

Lifeline weld on quick release hub arrived.

Fire extinguisher arrived also

This little bit of kit should be arriving any day now.

[Russman]

Awesome welding skills there!

[Kaido_RR]

This little bit of kit should be arriving any day now.

what is that? a tow hook?

[Marlin]

Looks like a hook to attach to the cage to hang the steering wheel off.... all the cool kids are doin it

[jeffworld2]

Could you take a photo of the seat rails from the drivers door? interested to see what happens near the tunnel as far as mounting goes or if they are just welded to the floorpan

[Marlin]

Could you take a photo of the seat rails from the drivers door? interested to see what happens near the tunnel as far as mounting goes or if they are just welded to the floorpan

You can see that here Jeff;

Seat rails welded up, with mounting spuds

[GTS-t VSPEC]

What is the advantage of new seat rails as opposed to using the factory mounts ?

[Roy]

Its tied into the cage so in a big accident...just abot every touring car and rally car do it this way these days

[savant]

And height - with the Sparco's there was no way we were going to fit with the standard mounts. Had to chop down the Sparco brackets too.

[GTS-t VSPEC]

Thanks for the responses Roy and Savant, I'll speak to my cage fabricator to see if he thinks it's worthwhile. My seats sit fine as it is, so would only be for the added protection incase of a big accident.

[savant]

Fair enough, I think the Pro ADV's must have a bit more cushion in the bottom than some seats. We were nearly touching the roof when we blocked them up to sit where the stock mounts would place them.

The passenger side mounts (Targa one day!) are going to take a fair bit of work with the floor pan the way it is, but I'm sure we'll get there.

Cheers

[OLLIE_NZ]

Smallish update today.

Roll cage is moving along, main hoop diagonal, harness bars, transmission tunnel bar and most of the passengers side door bars are done

Chop chop!, seems this will be the only way to mount the passenger seat.

Some dodgy plumbing of the clutch and brake lines from the master cylinders. Not entirely happy, will probably end up doing them in braided stainless with some banjo fittings over the next month or two. Currently what you can see runs into some bulkhead fittings in the firewall.

[PHaT MR30]

did you consider mounting the passenger side rail further back?

[OLLIE_NZ]

^

Tim, we tried sitting the seat in with the sparco seat brackets and nothing seemed to work. Maybe I'm abnormally tall or something but every option seemed to warrant the need for cutting a hole in the roof so my head wouldn't hit

Obviously it's been done many times on this forum, has anyone here mounted a Sparco Pro ADV seat on sparco steel seat brackets before in an R32, if so I would love to know you height, and how you managed it.

[DJRIFT]

i like the lines. neat and tidy i say. braided hose gets messy fast and rubbes on stuf like crazy.

i like the whole project so far.

[Tektrader69]

Dont stop posting up these pics. I have to go through a lot of this and am appreciating the insights and issues you are having and how you solved them.

I have the same clutch pedal issue you have. I hope the Alloy welding you have done is going to be strong enough seeing the old pedal is a cast part.

My pedal cluster is a TILTON part. I hope the masters work out OK. I gave TILTON all my info in piston numbers, sizes, car weights etc etc for them to work out the master sizes. The cheif engineer at Tilton was very helpful

Edited September 23, 2010 by Tektrader69

[sav man]

Chop chop!, seems this will be the only way to mount the passenger seat.

I had to chopthat out too, and weld in a new section in my car to get the front of the passengers seat low enough.

Edited September 23, 2010 by sav man

[savant]

Tektrader - What size MC's did you end up with?

No doubt we will be getting some new ones when we get the AP's but hopefully this will be OK for a few months.

Cheers

[Ant97GTR]

What is the advantage of new seat rails as opposed to using the factory mounts ?

Having recently seen a car where a tree impacted just behind the passenger seat, the tree truck pushed up the floor by a substantial amount. Had the tree impacted next to the passenger it wouldn't be hard to imagine that the seat would've been pushed up and the passengers head impacting the roof or cage. This design would no doubt reduce the chance of this happening.

[OLLIE_NZ]

I have the same clutch pedal issue you have. I hope the Alloy welding you have done is going to be strong enough seeing the old pedal is a cast part.

Graham, the clutch pedal is Aluminium with a 3mm wall thickness, fully boxed.

I'd be slightly concerned if we had to modify the brake pedal like this (against regulations here anyhow). But I think the clutch pedal will never see anywhere near the force the brake pedal would. I'm very confident it will be up to the task mate.