I noticed there are a few people interested in how the GT35/40 performs, so I thought I'd post here

The Jamboree was held over the weekend (in Queensland, Australia). This is the biggest event for 4/6/Rotary powered cars and there were over 15,000 fans in attendance. (Read more results HERE)

I raced my car and did quite well, but my final run of the night was my quickest, with a 10.2 @ 133mph pass! The tune was very conservative (and rich) so there is more left in it yet

Hopefully I'll have some video footage converted in a week or so

The Details :-

I should have my website done in a couple of weeks but basic run down is:-

1985 Mazda RX-7 (Series III)

Engine: 13B turbo (Series V - 1990 - built in garage at home)
Gearbox: Turbo II Gearbox (Series V)
Turbo: Garret GT35/40BB
ECU: MoTeC ECU
Tyres: 26x8.5" slicks
Weight: 2647lbs

10.2 @ 133mph (1.38 60 foot)

Best 60' of 1.36


A couple of old photos, hopefully more in a couple of days.

 

nice!

 

wheres the crowd ??? looks empty to me? JK .. NICE wheel stand!!

 

Damn, very nice!

 

nice! what psi were you running, and how big is your turbine housing is it the 1.06?

 

Great run! Fantastic 60ft times. Sweet car!

 

congrats!!!!! I thought you were comming to the pan nats this year?

 

a777, Was your car featured in Fast4/Rotary some time last year?

 

How did you get it to hook so hard??
John

 

hehehe Old photo from a test n tune, new photos soon I hope

I wish! I was over there in Atco in May though, was an awesome event. I was only there for qualifying on the rainy saturday but got to meet lots of great people Special thanks to Carlos, Pepe, Abel, Angel, Judge Ito, and everyone else that made me feel welcome I'll be back!

Thanks to everyone else for the cool comments, to be honest I think it launches this well partly due to how quickly the turbo comes on boost....

 

What boost PSI were you running..? Have you dynoed it also..?

 

I was running approx 20-21psi. I have dynoed the car but I was using a Dyno Dynamics (Load Cell) type dyno and the figures do not correspond with the more common Dynojet (inertia) that you use in the USA. You can't really compare the two easily (without a decent explanation anyway).

One can assume from the weight and the mph that my engine is making close to 580hp (flywheel).

Note that I think the factory Turbo II (Series 5) intake manifold is now becoming a restriction in my setup.

 

 

I was there and saw you run, it was a pretty fun day,I'm glad Joe (7.86)won in the end.I also got a kick out of the little colt.

Thanks,Sean

 

come on Angus Ive seen that same manifold in a mid 8 second car before....

 

nice run man

 

Hi CTHIS

Was it completely stock inside though? Or had it been ported/power ported/whatever. On a flow bench I have seen gains of over 30% just from porting the intake manifold.

 

Some photos from Jamboree (see, there is a crowd!)





5 Pages of photos from the event are currently at www.fullboost.com.au

 

26x8.5 what does that convert to in metric?

 

I dont know I didn't look!

You've got to love those wheels up launches!

 

66x21.5cms

 

Hehehe
yep, feels great from inside!

There's a couple of photos of your car at the meet too

 

Hey Sean, great to see you made it down to Australia, hope you enjoyed seeing us Aussies in action!

12.04 @ 120 from the colt is pretty impressive too! Cheap conversion

 

a777,
Thanks for the reply/info. I used to have a first gen (1981 year) with a 13b street port , blower and nitrous. I kept busting trannies and blowing up pumpkins.. I love those first gens and what a sleeper you have....(still drive an 85 totally stock with 160,000 miles...)

 

a777 what rearend are you using?