[esoneson]

Brian,

I use: http://vexer.com/68rt/speed.html to look at rpm vs speed vs diff and tranny ratios

With 25 in tires and 4.10 rear and no trans, at 8000 rpm you will be doin' 150mph!

Play with this calculator and adjust ratios and tire sizes. This will help in deciding which diff ratio will work best.

After playing with this a lot, I came to the conclusion that a 2-speed is the only way to go.

Personally, I am going with a powerglide tranny: 1.82:1 low and 1.00:1 high gear to solve my problems.

Anyway, have fun and I will be watching this one too.

Eric

[rctous]

Originally Posted by PatricioIN

I love the newest body style of Hyndai Accent or Kia Rio (both under 2400lbs)... don't know how much you plan on spending on the car itself, but if you're going that route with AC and Lithium, then it should be a nice looking car.

Oh, the new Yaris has electric power steering as do (I believe) the Scions.

kia Sorento is the perfect donor if I can find one now. Light weight and rear wheel drive. Tranny won't matter,,,,, keep your eyes open if ya can find me one.

Brian

[rctous]

Originally Posted by esoneson

Brian,

I use: http://vexer.com/68rt/speed.html to look at rpm vs speed vs diff and tranny ratios

With 25 in tires and 4.10 rear and no trans, at 8000 rpm you will be doin' 150mph!

Play with this calculator and adjust ratios and tire sizes. This will help in deciding which diff ratio will work best.

After playing with this a lot, I came to the conclusion that a 2-speed is the only way to go.

Personally, I am going with a powerglide tranny: 1.82:1 low and 1.00:1 high gear to solve my problems.

Anyway, have fun and I will be watching this one too.

Eric

Thats interesting because in theory if the factory ICE motor were in 4th gear its basically a 1:1 ratio it would be at perhaps 3000 rpm to do 60 mph so it sounds like the info you have is accurate,,, so it looks like a 2:1 gear box will be in order,, or an 8:1 rear end (not gonna happen) that should get me 70+ mph and have excellent excelleration as well.

Thanks man!

Brian

[rctous]

Originally Posted by esoneson

Brian,

I use: http://vexer.com/68rt/speed.html to look at rpm vs speed vs diff and tranny ratios

With 25 in tires and 4.10 rear and no trans, at 8000 rpm you will be doin' 150mph!

Play with this calculator and adjust ratios and tire sizes. This will help in deciding which diff ratio will work best.

After playing with this a lot, I came to the conclusion that a 2-speed is the only way to go.

Personally, I am going with a powerglide tranny: 1.82:1 low and 1.00:1 high gear to solve my problems.

Anyway, have fun and I will be watching this one too.

Eric

By the way very cool tool!!!!

[rctous]

found this near by
http://kansascity.craigslist.org/ctd/1330226339.html

may look at it tomorrow

[TheSGC]

Originally Posted by rctous

found this near by
http://kansascity.craigslist.org/ctd/1330226339.html

may look at it tomorrow

That looks like a nice ride. A light SUV would make a nice EV mixed with an AC system. The AC55 was designed for trucks, so it should be a nice match.

[rctous]

Originally Posted by TheSGC

That looks like a nice ride. A light SUV would make a nice EV mixed with an AC system. The AC55 was designed for trucks, so it should be a nice match.

ya that was my thought as well we will see what the customer thinks


brian

[samborambo]

Yeah, 4:1 ratio is way off.

A of 5.5:1 with 24 inch wheels gives a 0-60mph of around 12.5s with that motor. That's in a 3000lb Toyota MR2 or Mazda RX7 with two people. You could increase the reduction further to improve acceleration. 5.5:1 is 100mph motor redline (8000RPM).

I'd give you my spreadsheet tool to work this stuff out but its pretty messy at the moment. I want to make it into an online web tool so that everyone can use it.

There must be differentials around with a ratio of 5.5:1 or thereabouts?

Sam.

[rctous]

Originally Posted by samborambo

Yeah, 4:1 ratio is way off.

A of 5.5:1 with 24 inch wheels gives a 0-60mph of around 12.5s with that motor. That's in a 3000lb Toyota MR2 or Mazda RX7 with two people. You could increase the reduction further to improve acceleration. 5.5:1 is 100mph motor redline (8000RPM).

I'd give you my spreadsheet tool to work this stuff out but its pretty messy at the moment. I want to make it into an online web tool so that everyone can use it.

There must be differentials around with a ratio of 5.5:1 or thereabouts?

Sam.

70-80 mph is plenty and I think 5.5:1 is too low

doesn't 8:1 look better?

[rctous]

after spending more time here http://vexer.com/68rt/speed.html 150 mph = 7200 rpm with 28 inch tires(just a guess at this point) and 4.11 rear end gears that is motor/ engine rpm so if I make that reduced 2:1 I get 75 mph at 14,400 rpm right? Then that is not good either , what is wrong with the custom bar on the above site, heck then I can just plug it in? if I do 2:1 and a 4.11:1 rear end I have a reduction of 8.22:1 right or is it 6.11:1? I used the custom transmission setting on the chart and plugged in 2.0 that made about 8000rpm at 83 mph thats is perfect right?????

not to sure if the pic will post but I will try

looks like it will work