NC 20BPP Time Attack / Track Car - Build Thread

16bit · Postby **16bit** » Tue Mar 22, 2011 2:14 pm

any goss?

Jeo · Postby **Jeo** » Sun Aug 07, 2011 10:07 am

Any progress?

Postby **Okibi** » Sun Aug 07, 2011 5:56 pm

Danny is at Time Attack welding carbon 35 skylines back together.

Postby **Andy_W** » Mon Aug 08, 2011 11:52 am

Yes, I can witness this!

Mr nanotech · Postby **Mr nanotech** » Fri Aug 12, 2011 9:22 pm

Amazing build!

Moto · Postby **Moto** » Tue Sep 20, 2011 4:06 pm

Bumping for more NC porn

Postby **orx626** » Sun Oct 09, 2011 1:48 pm

Here's the long overdue update

It's pretty obvious that progress has been very limited over the past 2 years....however, other projects I've been working on during this period are having a positive influence on the build of this car. I just that I don't have a lot to show for my efforts at the moment.

Firstly, development of the RX-8 supercharger kit hit a bit of a stumbling block about this time last year when the product designer/manufacturer announced that he was unable to continue to support the product at the level that was necessary to ensure its longevity. Of course due to my own workload I was unable to proceed with the further road testing that was required. There were two main issues (one was electrical/electronic and the other mechanical/lubrication). On the positive note, initial performance results for the supercharger kit were very encouraging with torque increased by 40 to 55% in a fair spread of the engines rev range (2500-6750). Even at 7,750rpm there is just under 40% more torque available. Peak horsepower of 232rwhp was at 8,000rpm where the boost was a very mild 7 psi. Bear in mind that this is with standard headers and catalytic convertors. So things are looking very promising for the race car engine where I'll be running 14-15 psi, no cat convertors, and a Motec M800 ECU. I did take my RX-8 out to Queensland Raceway in early July last year but only completed 3 laps before an oil leak spectacularly presented itself....although, IIRC I did extract a low 62 sec lap time on the Clubman Circuit on cold tyres and the Dynamic Stability Control (DSC) left on (as I was too busy watching all the gauges for issues)! :mrgreen:

Fast forward 5 months to December 2010....the Xmas to New Year break to be exact....I dusted of the ol' girl with a view to getting the roll cage wrapped up. Here's a sequence of photos capturing the fabrication, Bear in mind that this is not a CAMS compliant cage as it has members that they don't have documented in Schedule J. But it does exceed FIA's performance requirements which is far more important. The structure significantly increases the standard chassis' beaming and torsional stiffness.

.....then on New Years Eve at 3:15pm to be exact....this happened!!!! :shock:

This is what happens when 8 piston Brembos and Enkei RPF1's crunch fingers! The project was on-hold once more! :cry:

New Years 2011 was spent in the Holy Spirit Hospital...luckily an exceptional surgeon wasn't on leave and was able to reattach them. Best part is that they stuck! :mrgreen:

This is how the damage looked after 5 weeks....much better than both fingers being an inch shorter!!!

This is how they look today almost 9 and a half months later after 6 months of intensive remedial therapy to get motion and strength back in them....We didn't think I'd have a nail regrow on my middle finger...so I'm very, very lucky...the dodgy part is slowly growing out. Should be gone by New Year's 2012! :lol:

Beside's the dodgy finger nail...you really wouldn't know the extent of damage they experienced.

Anyhow, enough blood and guts.....In mid-March this year we got stuck into finishing the roll cage fabrication and welding it out. I'm still to run the member behind the dash.

Now before anyone says anything about the weight of the cage and that it is overkill....simply, I don't care!!! I don't feel comfortable with anything less in an open top car!

More to come......

Cheers,
Danny

Postby **mx52nv** » Sun Oct 09, 2011 2:01 pm

Simply awesome workmanship as usual Danny and sorry to be reminded of your injury - I can so relate. :mrgreen:

Cage looks like it is higher than the roofline in some pics so is the hardtop still able to be attached?

With the amount of rotary vehicles in your collection, I don't see why you put them all in a section of the warehouse and charge an admission fee - History of Mazda Rotary Vehicles? :lol:

Les

Postby **Okibi** » Sun Oct 09, 2011 2:37 pm

.. What Les said!

Given the speeds you'll be doing I don't think the cage is over kill (although a couple more bars and you'll keep the rain out).

Glad to see your fingers are mending, a mate did the exact same thing with his race car and almost lost a thumb.

Big G · Postby **Big G** » Sun Oct 09, 2011 2:38 pm

Great to hear some more on the build Danny

Really sorry to hear about your injury, I can't begin to imagine how that must have felt, but you seem to be on the road to recovery, so all the best mate :beer:

Postby **orx626** » Sun Oct 09, 2011 2:43 pm

mx52nv wrote:Simply awesome workmanship as usual Danny and sorry to be reminded of your injury - I can so relate.

My injury was nothing on yours Les! :shock:

mx52nv wrote:Cage looks like it is higher than the roofline in some pics so is the hardtop still able to be attached?

The cage follows the internal profile of the factory hardtop so that all the factory attachment points are retained. This was one of my main requirements.

mx52nv wrote:With the amount of rotary vehicles in your collection, I don't see why you put them all in a section of the warehouse and charge an admission fee - History of Mazda Rotary Vehicles?

Les

I like the way your thinking Les!!! :mrgreen:

The admission fee might be a bit rude though!

Cheers,
Danny

Postby **orx626** » Sun Oct 09, 2011 2:45 pm

Okibi wrote:.. What Les said!

Given the speeds you'll be doing I don't think the cage is over kill (although a couple more bars and you'll keep the rain out).

Glad to see your fingers are mending, a mate did the exact same thing with his race car and almost lost a thumb.

Thanks Dave! Yes, these sorts of injuries are far too common...your well aware of what you're doing yet it only takes a fraction of a second and their gone...well almost!!! :lol:

Cheers,
Danny

ps. Dave are you able to remove the date reference in this thread title?

Postby **orx626** » Sun Oct 09, 2011 2:46 pm

Big G wrote:Great to hear some more on the build Danny
Really sorry to hear about your injury, I can't begin to imagine how that must have felt, but you seem to be on the road to recovery, so all the best mate

Great to hear from you Geoff! Hope life's treating you well.

Regards,
Danny