Impressive! That turbo is huge! Can't wait to see some videos of it in action... :D

You know what they say about big turbos.

Thanks fellas.

Yes it is RHD, I'm in Australia.

I should have some vids this arvo.

http://www.rotary20b.com/turbo-rev.wmv

Don't think the ant liked it too much :D

http://www.rotary20b.com/1.wmv (972kb)

http://www.rotary20b.com/2.wmv (334kb)

http://www.rotary20b.com/3.wmv (433kb)

http://www.rotary20b.com/4.wmv (605kb)

Couple more vids.. just cruising up to 60

http://www.rotary20b.com/20b-1.wmv

http://www.rotary20b.com/20b__2.wmv

That car is so SWEAT!!!

Now aren't you glad you didn't sell it?!?

Sure am :)

OMFG I'm in love! Well done mate!

very nice..

where can i get inf. on this black car, body-kit , wheels etc.

nice job

Just got the car back after upping the boost a bit and it now has a S4 turbo box with a quick shift and new clutch etc.
I believe it made 450 rwhp on 9psi, smoking the tyres on the dyno, I only have 205's on the back now.
Gearbox feels great, clutch is very heavy so apart from the diff the driveline should be sorted now.
Its a real handful now, should have some in car vids up soon.
Thanks to Craig Dyson for a top job as usual.

I'm drooling over both your N/A *and* your turbo build. They're amazingly impressive. You aussies sure know how to do justice to a rotary build project.

Jon

Rotary20B, you've gone to a 3" exhaust system I take it. :) I'm doing a 2.5" system for my NA 20B.

Did you already change out the 3rd member to an LSD? What gearing? Hope it's not still the old one-legger 4.44 you had with the 12A bridgeport. ;)

yeah... it is pretty SWEET!!

my 20b cross member
http://img2.putfile.com/thumb/6/18009451433.jpg

G'day, hows your 20B coming along?

Still 2.5", will change to 3" a bit later on, will no doubt gain more hp with that.

Diff is now stock S3, same diff as your GSL-SE's. I'm now running 3.9s though, open wheel as it is stronger than running the S3 LSD. I'll be changing to a Hilux soon though.

Never had a 12ABP, always had 13B BPs in it before the 20B :)

Ah, it must have been your friend with the 12A.

My '83 is still on schedule for 12A removal some time in July or August for test fitting the 20B. To be ready, I've been working on a CD23C Cosmo (RX-5) as tearing into the RX-7 will leave me without a daily driver. Gotta get the Cosmo done soon. It was unreliable with the automatic so the manual conversion should help tremendously. Plus the engine's getting swapped for a fresh rebuild because it was leaking out of the rear eccentric seal. Might as well swap the tranny and the engine at the same time. :D

Hey I'm glad to see you made that much power on 2.5" exhaust. ;) I must admit I had a few doubts in the the back of my mind when I worked out my diameter to 2.5". Not anymore. I'll let that be a lesson for everyone else who think they need 3" on their 2 rotors. :) Go with 2" or at the largest, 2.25".

I've got the LSD in mine. Stock gearing for '83 (3.9something). The tranny will most likely stay at the stock position for easier access to the oil filter and clutch slave. It also makes future tranny and driveshaft swaps easier.

I roughly calculated the best position for the oil pan. I'll know more once the 12A is pulled. I'll definitely need to reverse the crossmember and add something up front between the swaybay and the main crossmember for the front cover mount.

Here's a short video of what its like accelerating, stock diff gears (speedo is accurate), 2nd gear from 70 - 120 km/h.

http://www.rotary20b.com/2nd.wmv

Speedo is accurate but your tach isn't. :) Is it reading three pulses per rev instead of the two pulses it was designed for?

My ignition will output the proper two pulses per rev so the tach should be accurate.

haha I was just about to jump back into my post to explain that the tacho isn't calibrated.

thats a beauty ya got there mate..