World Time Attack Gtr32 Bc Automotive

[R32GOJIRA]

Ooooh........ 1227.4kg.

[stevena]

Haha you guys crack me up, I put the car on the scales and all parts onto the cabin that haven't been fitted up yet. There's no oil or water and wiring loom so we took a good rough guess and added it onto the final reading...............................................................................................................................................................................................................................…...……........................................................1268kg

[stevena]

But wait it gets better, last track day we did we had a full tank we think.. Only did a few laps so there should be at least half a tank of fuel in there which we are gonna drain to see how much. That's 1268kg- say roughly 25kg(could be more) which brings us down to.........1243kg

But wait there's more...we may have a carbon tail shaft coming, don't really like these as they stuff up, well they did stuff up twice already on my mates r32 gtr but his exhaust was close to it and ours isn't. So if it arrives that's 9kg less I believe, bringing spare standard shafts regardless to the event.

But wait theres more......we may be putting in a lighter seat as mine weighs in at 9.5kg, borrowing a mates carbon seat and weighing it tonight and need to see if it fits on our rails too.

Our class allows us to be 1215 in a gtr32. Pretty close I reckon and I'm honestly wrapped, thats freak'n awesome for a fully caged car without chopping all the metal out. These guys have done such an awesome job, wait till next weekish, shits gettin good.

[ssxRicho]

Hell yes.

[stevena]

Carbon fibre seat weighed in at 5.7kg, hope it fits. Ok now I'm getting excited, or it could be the sudafed I had earlier, either way I'm feeling good.

[stevena]

11th September Phillip island practice day. On Track events.

Hey guys, most likely gonna do this test day as we need it, if anyone wants to join us and drive their car I can get it for half price. It will cost $330 as opposed to 660 if you wanna share a garage with us, it is the best event as you get heaps of track time, more than any other track day you can do twice over. Private message me if you like but can't guarantee spots as they fill fast. For anyone else that is interested in coming to watch, please bring a lap timer as we need proof if we beat our old time, or if the car won't start.

On Track Events Private test days at Phillip Island Circuit has been put together to supply an affordable test day at circuit without overcrowding. $660.00 inc GST.

The days are run with a maximum of 12 cars on circuit at any one time giving series competitors between 7-8 Sessions per day. Shared pit garage included in price. If separate garage is required a cost of $100.00 will be requested on day.

We run 2 -3 sessions alternating between two Categories (Closed roof cars/Open wheelers inc Aussie race cars, Radicals, Wests etc). Event is ran under CAMS approved Top Car Regulations in including all medical, vehicle recovery and race control supplied.

[SRS13]

Don't you have to run AO50's at WTAC?

[stevena]

Don't you have to run AO50's at WTAC?

Yes correct, we will use advan AO50's when were competing at wtac, we picked these hankooks up at a rippa deal. The advans are 2k a set and testing gets really expensive. I hear both tyres are pretty much on par. Anyone that has used both to compare, feel free to comment?

We haven't used r spec semis in years, so this is going to finally answer my own question, what's the lap time difference between slicks and semi slicks?

Edited August 25, 2013 by stevena

[Russman]

But wait it gets better, last track day we did we had a full tank we think.. Only did a few laps so there should be at least half a tank of fuel in there which we are gonna drain to see how much. That's 1268kg- say roughly 25kg(could be more) which brings us down to.........1243kg

But wait there's more...we may have a carbon tail shaft coming, don't really like these as they stuff up, well they did stuff up twice already on my mates r32 gtr but his exhaust was close to it and ours isn't. So if it arrives that's 9kg less I believe, bringing spare standard shafts regardless to the event.

But wait theres more......we may be putting in a lighter seat as mine weighs in at 9.5kg, borrowing a mates carbon seat and weighing it tonight and need to see if it fits on our rails too.

Our class allows us to be 1215 in a gtr32. Pretty close I reckon and I'm honestly wrapped, thats freak'n awesome for a fully caged car without chopping all the metal out. These guys have done such an awesome job, wait till next weekish, shits gettin good.

That's pretty amazing man. My GTSt is what people will call 'fully stripped' and it's 1250kg wet excluding fuel. Only thing carbon is the bonnet. Wonder what I'd get mine to with similar weight saving measures. you've gone to. Good work. That's what's needed to get up with the EVO's.

[stevena]

That's pretty amazing man. My GTSt is what people will call 'fully stripped' and it's 1250kg wet excluding fuel. Only thing carbon is the bonnet. Wonder what I'd get mine to with similar weight saving measures. you've gone to. Good work. That's what's needed to get up with the EVO's.

I reckon you could get under the 1200, your doors although already cut out are still heavy and could have 20kg maybe combined in them for replacement carbon or fibreglass, boot etc etc it all adds up. If you want to go extreme you can cut the whole ass end out, engine bay, strip the firewall to one layer but those costs in labour alone would be a small fortune. The evo's and wrx's are allowed a weight of 1054kg- worste case 1122kg, that's a massive 100-150ish kg difference. Last time we were out we weighed 1320kg so if we're around 1240ish then will be interesting to see what 80+kg difference will do.

[stevena]

Ok weighed the fuel in tank, 23kg. Was hoping for more. All good though.

[Russman]

I reckon you could get under the 1200, your doors although already cut out are still heavy and could have 20kg maybe combined in them for replacement carbon or fibreglass, boot etc etc it all adds up. If you want to go extreme you can cut the whole ass end out, engine bay, strip the firewall to one layer but those costs in labour alone would be a small fortune. The evo's and wrx's are allowed a weight of 1054kg- worste case 1122kg, that's a massive 100-150ish kg difference. Last time we were out we weighed 1320kg so if we're around 1240ish then will be interesting to see what 80+kg difference will do.

You might be surprised. The doors are still featherweights even though they're steel. I don't think I could even save 3kg each. The outer skin is so thin. It's a very cost effective way of doing it. I want to cut the ass out and go with a fuel cell for 3 reasons. Better weight distribution, less weight overall and more room for a rear diffuser.

[stevena]

You might be surprised. The doors are still featherweights even though they're steel. I don't think I could even save 3kg each. The outer skin is so thin. It's a very cost effective way of doing it. I want to cut the ass out and go with a fuel cell for 3 reasons. Better weight distribution, less weight overall and more room for a rear diffuser.

I guess the only way to tell is to weigh em up, but probably best to put your money else where on the car if there's only 6kg combined. We thought about cutting our ass out but after speaking to a mate that has done it he mentioned there was only about 4-5 kg, then you need a fuel cell, make up a brace which then only saved him about 2kg in the end, not sure about your standard tank but ours is pretty light from factory, if you cut all the rear out you most likely need new mounting points for your wing depending on your secure location too. I also checked the angle of the the rear diffuser which will eventually go on fits perfect under the standard tank which sits nice and low. And the cost to do with labour and fuel cell purchase all for a couple kilos wasn't to my liking but if your serious about weight as its addictive then go for it dude.

[Russman]

I guess the only way to tell is to weigh em up, but probably best to put your money else where on the car if there's only 6kg combined. We thought about cutting our ass out but after speaking to a mate that has done it he mentioned there was only about 4-5 kg, then you need a fuel cell, make up a brace which then only saved him about 2kg in the end, not sure about your standard tank but ours is pretty light from factory, if you cut all the rear out you most likely need new mounting points for your wing depending on your secure location too. I also checked the angle of the the rear diffuser which will eventually go on fits perfect under the standard tank which sits nice and low. And the cost to do with labour and fuel cell purchase all for a couple kilos wasn't to my liking but if your serious about weight as its addictive then go for it dude.

Yeah true. Part of the idea is a little subframe in the boot for wing mounting. With rules this year in open I'd have to drop my wing down. If I did I'd like to have the option on going back up for other events.

[stevena]

Yeah true. Part of the idea is a little subframe in the boot for wing mounting. With rules this year in open I'd have to drop my wing down. If I did I'd like to have the option on going back up for other events.

Yeah us too, might need extra wing mounts.

So after posting that comment that there was only about 4-5 kg in the boot savings....I reckon there's more, because today I decided to cut the rear parcel shelf out and the boot bulk head and weigh it up.

[stevena]

So I'm posting these pics and a vid which I hope works to prove to dean and Brett that I actually did something on the car finally without breaking it. Yes it's true, I'm no mechanic, and one day after wtac when they can be bothered reading this thread they will remember I actually did something right.

trim.SuEdHY.MOV

[stevena]

Damn it, video doesn't play I uploaded from iPhone. Anyhow myself and Pauly cut the rear shelf out and the bulkhead metal between the towers, total of 5kg, so I reckon if you completely cut your boot floor out you can get 5-10kg maybe, I'm not gonna cut it out as its gonna add more work to do and time is something we are short on but thought it would be nice to share. The photo between the shock towers was a before shot.

[stevena]

To save weight (by not having to seal off the boot, and we cut it out anyhow) and time and money, the surge tank was placed under the car for these reasons. I know its not the best location for weight but the other factors are more important so they come first. It will be covered to keep it protected from stones etc, and if we stack it, that's the least of my issues.... Cheers

Pauly pointing out the obvious.

[fatz]

Rust works really well for weight reduction

[stevena]

Rust works really well for weight reduction

I can't wait that long lol