NC 20BPP Time Attack / Track Car - Build Thread

Postby **orx626** » Tue Jun 11, 2013 8:57 pm

timk wrote:Sounds exciting!

Even a 'boring' MZR comes to life with plenty of herbs and spices when you add enough boost!

What's the largest centrifugal blower you can buy from HKS?

16bit wrote:rotrex c38-92 is good for 720hp?

Definitely not having any form of forced induction...will be relying purely on gravity and a CAI! :mrgreen:

Postby **Okibi** » Tue Jun 11, 2013 9:10 pm

orx626 wrote:...will be relying purely on gravity and a CAI!

16bit · Postby **16bit** » Tue Jun 11, 2013 9:13 pm

787b motors are pretty handy na.

Postby **orx626** » Tue Jun 11, 2013 9:21 pm

16bit wrote:787b motors are pretty handy na.

Music to my ears! :twisted:

Not even if I sold my whole collection would that be enough coin for a genuine R26B donk! :shock:

16bit · Postby **16bit** » Tue Jun 11, 2013 9:50 pm

http://www.kiwi-re.com/wwd_showroom_cat10_2.php

there you go, apparently only 10k! plus all the rest.

thats cheaper than the 70k 26b's mazda use to offer them for.

Postby **Okibi** » Wed Jun 12, 2013 12:14 am

cwto24 · Postby **cwto24** » Wed Jun 12, 2013 9:49 am

I was so looking forward for this car to be finished

Magpie · Postby **Magpie** » Wed Jun 12, 2013 12:09 pm

orx626 wrote:Definitely not having any form of forced induction...will be relying purely on gravity and a CAI!

I'm looking forward to this build

rxmx · Postby **rxmx** » Wed Jun 12, 2013 12:22 pm

Seeing your involved with rota's 20b??

Love the level of engineering that goes into your builds looking forward to seeing where this heads

Postby **orx626** » Wed Jun 12, 2013 12:30 pm

rxmx wrote:Seeing your involved with rota's 20b??

Bingo! A peripherally ported 20B to be exact! :twisted:

Here's a little piccie to whet your appetites.

Cheers,
Danny

Black_Penguin · Postby **Black_Penguin** » Wed Jun 12, 2013 12:32 pm

This just became my favourite build on this site.

rxmx · Postby **rxmx** » Wed Jun 12, 2013 1:34 pm

orx626 wrote:
rxmx wrote:Seeing your involved with rota's 20b??

Bingo! A peripherally ported 20B to be exact!

Here's a little piccie to whet your appetites.

Cheers,
Danny

NICE, an angry 20Bpp. And again a work of art. Will you be at time attack again this year?

16bit · Postby **16bit** » Wed Jun 12, 2013 5:53 pm

350 to 400whp sounds good.

you gonna have a centre bearing on the shaft?

Postby **orx626** » Wed Jun 12, 2013 9:28 pm

rxmx wrote:Will you be at time attack again this year?

Yes I'll definitely be there in some capacity.

16bit wrote:350 to 400whp sounds good.

you gonna have a centre bearing on the shaft?

Hi James, with recent developments in this area it could possibly go well over the 400rwhp mark. A few weeks ago similar spec 20B PP made 520fwhp on 888 Racing's engine dyno! :twisted:

Time will tell what's achievable with my engine package.

I'm using a 20B block as opposed to an aftermarket 13B based triple rotor (short crank). I don't require an eccentric shaft bearing support between the second and third rotors...also you would require a custom eccentric shaft for this. As it will be naturally aspirated not too much engine strengthening is necessary...which is good in keeping the costs down!