NC 20BPP Time Attack / Track Car - Build Thread

Postby **orx626** » Wed Jul 24, 2013 10:35 pm

Thanks guys! :mrgreen:

There's been a bit more progress over the past few days.

The first item on the critical path was to position the engine in such a way that there's good clearance to all important engine externals whilst keeping it reasonably low, but not compromising the front aero package.

The front cover in position.

Some jewellery in the form of an integrated dry sump and pump assembly, and a side mount alternator arrangement.

With the engine in the desired position, the subframe was offered and notched accordingly.

Due to the extra length of the engine the factory steering rack is not useable. I've acquired a custom powered quick rack to work with the longer engine.

So the next job is to mount it without adversely affecting the steering functionality (ie. bump steer, Ackermann etc...).

Cheers,
Danny

Postby **Okibi** » Wed Jul 24, 2013 11:30 pm

Caffeine · Postby **Caffeine** » Thu Jul 25, 2013 10:23 am

Okibi wrote::shock: wow

Double wow! :shock:

little decks · Postby **little decks** » Thu Jul 25, 2013 7:59 pm

Are you looking at dowelling the engine? I'd imagine you would want to try and keep all the housings pretty rigid to one another with that piece of art of a dry sump set up.

hejira · Postby **hejira** » Thu Jul 25, 2013 8:04 pm

I've owned a high powered rotary, and an NC, and I can safely say you are batshit insane sir.

Magpie · Postby **Magpie** » Thu Jul 25, 2013 9:14 pm

I saw this in the flesh again today can't wait to see it finished.

Postby **orx626** » Thu Jul 25, 2013 9:17 pm

little decks wrote:Are you looking at dowelling the engine?

Geez, gimme a break!

All in good time...I haven't even got the dummy engine mounted as yet! :wink:

hejira wrote:I've owned a high powered rotary, and an NC, and I can safely say you are batshit insane sir.

I'll take that as a compliment. :twisted:

I found some more inspiration today.....ahhhh the 20B PP powered Furai! Such a shame it is no more. :cry:

...and just in case you missed this earlier post.....

Here's a Youtube video of a mate's 20B PP he built back in 2007 for his RX-2 sedan! Gotta love the free revving nature!

Hope to make some more progress over the weekend.

Cheers,
Danny

Eeyore · Postby **Eeyore** » Thu Jul 25, 2013 9:27 pm

Billet dry sump for the win! :mrgreen:

Postby **orx626** » Sun Jul 28, 2013 2:21 pm

As previously mentioned the crossmember needed to be notched to accommodate the longer engine. The original steering rack mounts were also removed. A new top flange was then hand cut, bent and trimmed to suit the notch profile. The crossmember was also braced for this modification to ensure that the structure's critical dimensions were maintained.

....and welded out.

The two flat tabs with the hole are temporary supports to assist with positioning of the new power-steering rack. Next is the job of getting the steering rack correctly positioned and attached to the modified cross-member.

Cheers,
Danny

Postby **orx626** » Tue Jul 30, 2013 10:16 pm

I'm pretty happy with the positioning of the new rack when compared to the OEM electric item. If anything I'm quietly confident that the minor geometry adjustment resulting from the new rack may actually be better than OEM with the appropriate adjustment out at the tie-rod ends. Bump steer and possibly Ackermann will be measured to confirm.

Even though the rack centre line is lower than OEM, it's smaller size ensures that the ground clearance hasn't been compromised.

The input shaft lines up well with the steering shaft too.

Won't be too hard to get them coupled.

Manufacture of the two mounting brackets to retain the steering rack is next.

Cheers,
Danny

Postby **Okibi** » Tue Jul 30, 2013 10:34 pm

Nice rack

Postby **orx626** » Tue Jul 30, 2013 10:39 pm

Okibi wrote:Nice rack

It's not my favourite sort of rack but it'll do! :lol:

Regie · Postby **Regie** » Tue Jul 30, 2013 11:15 pm

orx626 wrote:
Okibi wrote:Nice rack

It's not my favourite sort of rack but it'll do!

smoking chassis!

on another note, any dates for the open day??

Postby **orx626** » Tue Jul 30, 2013 11:45 pm

Regie wrote:on another note, any dates for the open day??

Nothing confirmed as yet Adam.

It will either be in September or October. Waiting on Ruddy to pick his date first!

Cheers,
Danny

Regie · Postby **Regie** » Wed Jul 31, 2013 2:06 pm

orx626 wrote:
Regie wrote:on another note, any dates for the open day??

Nothing confirmed as yet Adam.

It will either be in September or October. Waiting on Ruddy to pick his date first!

Cheers,
Danny

Ahh good thinking. Looks like there could be a group of us roadtripping up Late sept or October sounds good

, it seems early sept and oct I have some weddings to attend to