Help with my next project car with a twist

[ToyoNZ]

Hello

My next project is a bit of a challenge. It’s to build a bladeless turbine powered SW20 MR2 which I want to enter into the medium car section of the Auckland to Wellington and back to Auckland Economy Run, October 2011. visit http://www.aa.co.nz/about/events/AAener ... fault.aspx .
I was looking for club members throughout New Zealand who would be interested in helping with this project. Making it more fuel efficient will be a bit different from just making it go faster (but it still should). I have a manual SW20 car, wide body fiberglass kit, SC12 supercharger, intercooler, Toyo racing wheels, E153 gearbox (in bits), a big barn with a hoist and plenty of tools. So if anyone is interested in being involved with this project, drop me an email with your contact details. My email address is [email protected].

Cheers
Colin

[Lucas]

what sort of stuff do you want a hand with?

im sure i can offer you some of my spare time in the weekends

[ToyoNZ]

Thanks Lucas. Email me your contact details. My email address is at the top of the thread.

[mickeyduck]

Hey Colin is that your candy-stripe SW you're talking about mate? Might have to repaint it... green...!

[Sinturion]

Sounds like an interesting project.

Any particular reason as to why you're going for a V6? wouldn't a small 4-banger suit better for this application?

[ToyoNZ]

Hello Mickey. No its not the striped MR2. I have another Sw20 MR2 in the barn. I was thinking of painting it kermit green with two yellow/gold stripes. What do you think?

[ToyoNZ]

Hello Sinturion
The reason for the V6 bullshit is to get people interested in the project. If I had off said at the start I wanted to use a bladeless turbine, no one would be interested. So this thread is really only here to prove a point. No one likes change, and the thought of no broom broom out of the exhaust turns people right off.
Well $2.50 per litre for petrol might change peoples attitudes.

[ToyoNZ]

Multi spark ignition has arrived . Will need to order the PLC items required for the purpose built and programed ECU ECU controlled, independently variable force induction components allready in the barn.

[Roman]

For economy runs, the important part of any engine is 'brake specific fuel consumption' or BSFC

http://en.wikipedia.org/wiki/Brake_spec ... onsumption

At a particular rpm and load scenario, an engine will burn fuel more or less efficiently, as in, make more power for less fuel.

For economy, power and torque at wide open throttle is irrelevant, you want minimal pumping losses and good BSFC at low rpms and low load.

A higher displacement engine has higher pumping losses, but hopefully you'll be able to keep the RPMs a lot lower...

But it'll mean you'll need a gearbox with ratios to suit, or fit really big rolling circumference wheels/tires to acheive the same thing.

I reckon a modern 2 litre or less VVTI / VVTLI 4 cyl engine would be the best pick, and stripping the ever living shizzle out of your car to make it as light as possible, low air resistance will be key as well, wide body wont help.

VVTI engines which can adjust the dynamic compression ratio to suit the amount of load have a better BSFC under partial and light throttle conditions.

Since the Toyota Camry etc which had the V6 had more than 1 engine, I'd look at the efficiency rating for each vehicle to determine which is likely to actually offer the best economy.

Perhaps you could supercharge a VVTI engine, something like a 2AZFE and change the timing to make it work as a miller cycle engine, that would be pretty cool

http://en.wikipedia.org/wiki/Miller_cycle


Your project sounds great, supercharged 1MZFE widebody SW20 would be awesome, just not entirely convinced it would be the most economical car in the world.

[Gerrit Olivier]

sounds good mate, i may be keen to give a hand when abled to even when my time is limited.

I have a 3vzfe in mine and just bought a body kit and need repainting. but i would be keen to have a look at what you are doing, while lending a hand. =p

021 135 85 48
Gerrit is the name-o

[ToyoNZ]

I had a very detailed conversation with Lucas yesterday on the vineyard fun run. The 1MZ-FE may not be the best choose in its present form, but by the time were finished with the mods to the engine it should work well. The 1MZ-FE has some design features that will work well with the mods. As I told Lucas the mods include a bit of weird science that has not been tried before. If your keen to lend a hand or support in any shape or form, please email me your contact details as we will be having a get together before the end of the year. My email is [email protected] .

[Lucas]

im looking forward to seeing this in action.

just to clear things up a little for people, the goal here is fuel efficiency - not economy.

[Roman]

Efficiency and economy are the same thing

[EssDub]

Depends on how you define 'efficiency'?

Power per L of gas?

km/L?

etc etc etc...

[mickeyduck]

Hello Mickey. No its not the striped MR2. I have another Sw20 MR2 in the barn. I was thinking of painting it kermit green with two yellow/gold stripes. What do you think?

I still think green with red stripes Colin, to play havoc on people's eyes mate...

Actually green and gold would look pretty cool...