The carbon fibre time attack/superlap MX5 NB twins blog

mx5gem · Postby **mx5gem** » Sun Jan 20, 2013 9:17 am

lightyear wrote:I have put the red car back to near stock. It just has the B.C coilovers, front swaybar, exhaust. So it is all set to enter standard class in victorian super sprint, and modified in the mx5 club vic.

Doesnt the Mx5 club modified class have a 90rwkw limit?
I thought you posted your car had 110kw with the exhaust done. Or was that at the flywheel, not at the rear wheels?

lightyear · Postby **lightyear** » Mon Jan 21, 2013 7:45 am

110 was a typo. My guess was about 100kw for sales purposes. I have put the standard air box back on, and changed the muffler to a quieter/more restrictive one as the car was too loud. So it will be back to under 90 again, as it is little changed from when it went on the dyno for its 88.9rwkw run. I highly doubt you can get over 100rwkw with a stock motor and ecu.

lightyear · Postby **lightyear** » Sun Feb 17, 2013 7:23 am

I did the first round of the vic ss at Phillip island last Sunday. With the car as pictured except the wheels and tyres.
The new track is very good. I was in the fastest run group, with all race cars. Looked odd seeing a little red mx5 gridded up amongst all race cars.i actually had an official come up to me to ask if I wanted to go into a slower run group, and wanted to know my lap times. The day was running so slow, I was not about to wait for another run group, so stayed in group one. And I was around the middle of the field anyway. I did a whole session following an r35.
We did the same lap times. Best I managed was a 1:53.8. I was hoping for better, but if you rember last time I had a fastback, wing, splitter, skirts, spoilers, etc. I suppose a 1:53 is o.k. Softtop would be nowhere near as good as the fastback for aero.
And I only managed second position. Guy must be cheating.... He beat me by 0.1 in an elise.... We beat most of the other classes in the higher groups, so can't complain too much.

lightyear · Postby **lightyear** » Sun Feb 17, 2013 7:31 am

And the c.f car has had all the suspension bushes installed, Coilovers purchased, alloy tank being made, drivers seat is being lowered via a hole cut out, and box fabricated in the floor. Steering wheel on. I should have all the suspension done soon. And for the first time sitting at the right height.

Postby **Okibi** » Sun Feb 17, 2013 2:10 pm

I noticed Andrew put up a post today about the WTAC rule update

http://www.worldtimeattack.com/index.ph ... rsion-1-3/

Haven't read them, hope they don't effect your build.

Postby **beavis** » Sun Mar 03, 2013 11:19 pm

Update, CF vac infused Fastback and Boot for the Carbon Car:

Still needs trimming, mounting bracketry and windows.

Postby **Okibi** » Mon Mar 04, 2013 2:22 am

Very cool, nice work Dave! :mrgreen:

16bit · Postby **16bit** » Mon Mar 04, 2013 9:16 am

just wondering why you used a 12k plain weave?

i have no real idea of the benefits either way just asking.

Postby **beavis** » Mon Mar 04, 2013 10:15 pm

I think that's all he had lying around, it looks alright, and it seems to be quite strong.

Postby **beavis** » Mon Mar 04, 2013 10:22 pm

Another pic

lightyear · Postby **lightyear** » Sat Apr 20, 2013 9:51 pm

I am not sure how much progress I will get on the c.f car for a while, as the new house is all go at the moment. And as the builder, it is taking priority of my time and attention.

I did the 2nd round of the vic super sprint last weekend at sandown in the red na8b. I won my class with a 1:28.8. And came 2nd at the first round a couple of months ago by 0.1xx to an Elise at p.i.

Went to p.i today with aroca/mx5 club. Car was all set up to be in modified class- Coilovers, front swaybar, 6ul rims and nitto nt01's, front and rear lip spoilers, and a full exhaust. Standard intake, and soft top.
Managed a best of 1:52.8 - 4 seconds faster than the record. But was disqualified because I have no heater core. Something that was known by the club captain months ago. So for that little oversight I go straight to open class.
Looks like I will have to put one in. Eventually I will have to be able to comply with the rules. And these petty reasons end.
Remember at the last 2 rounds I had been disqualified for wipers, hump on boot, and holes in bonnet in restricted open. At least I know that I am able to beat the records easy, regardless of what class I end up in.
The na8b is the perfect package for modified class. I will get there, all part of the fun.

Don't have pics yet, but Brendan has some.

Sean · Postby **Sean** » Sun Apr 21, 2013 11:04 am

lightyear wrote:But was disqualified because I have no heater core.

I get that rules are rules, particularly when a record is on the line, but DAMN they must be some tight rules!

I know more than a couple of street cars that are running sans heater.

M1474 · Postby **M1474** » Sun Apr 21, 2013 12:23 pm

My heater in an integral part of the cooling system.

Frustrating as the rules are, you have to take the resistance to being in the class as a compliment. When you do smash the lap record with 100% adherence it will be so much sweeter.

Postby **Okibi** » Sun Apr 21, 2013 4:53 pm

M1474 wrote:...When you do smash the lap record with 100% adherence it will be so much sweeter.

Well said. Are these rules in writing or at the discretion of the club captain?

lightyear · Postby **lightyear** » Sun Apr 21, 2013 6:06 pm

Rules are, if it doesn't say you can do it then you can't do it. Plus the discretion of club captain. Going by that logic, a car that has had a respray can only compete in open class. As it doesn't say it is allowed.