New MCM series - 11sec subaru build. Bald PFer content.

[Agent86]

I'll just leave this here....

[suzuki dave]

is that suzuki dave guy on here still around? he was right into the electric car stuff

Yeah im still here and still read the forum everyday and have followed this thread. Just dont post as much as i used to due to losing my pc to teenagers who are on it constantly leaving me to my phone..
Built a few electric cars and while they were ok they were only base models .unless you spend good money on expensive batteries you dont get the range. Unless you spend good money on a good controller you dont get the power output. Even the charging systems are complex and expensive. For a dyi guy yes you can build a cheapish car to go from a to b but the batteries wont last long , you will not get much range before batteries die , and it wont be super fast.
I now work for the team manager of nobuhiro tajima (monster) one day my dream is to actually be on the team itself . one of the interesting things i didnt even think of when tajima went from combustion engine to electric was that while the combustion engine has 1000 hp , by the time it reaches the top of pikes peak it only makes around 400hp due to the changes in atmospheric pressure. Electric car gives no fucks for atmo pressure so makes 1300 hp at bottom and top of pikes peak. The most challenging things apart from dissapating the heat from running a few thousand amps through an electric motor and trying to do the test runs before the big race while charging the batteries using massive diesel generators (so much for saving the environment with electric cars. Tajima was supplied 5 yanmar 20kw diesel generators 2 were for battery charging 1 for lighting alone and the other 2 for everything else) is actually breathing (limited)air at the top!.
I kind of miss sometimes working on the weird shit i used to do (hovercraft, homemade aircraft, gyrocopters etc) and i definately miss working on and driving old shitbox swift gti's but im sure theres a brighter future for me.
Electric cars are our future with the battery technology ever evolving. I predict that in the near future you wont have to stop and recharge and that cars will be able to drive perpetually. It has already been tested with buses i believe and charging circuits embedded in the road. Although oil companies would do everything in their power to stop this from happening.
Who killed the electric car?

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[BigMuz]

1000hp and 400 at the top is not even close to right, but the point is valid.

Pike speak is 4700 feet climb.

The rule of thumb formula is Horsepower -(Elevation *.03 * Horsepower / 1000)

1000 - (4700 x .03 x 1000/1000)

=1000 - 141

= 859hp.

There is a humidity and temp calc but that's only a few percent.

[Billzilla]

1000hp and 400 at the top is not even close to right, but the point is valid.

Pike speak is 4700 feet climb.

The rule of thumb formula is Horsepower -(Elevation *.03 * Horsepower / 1000)

1000 - (4700 x .03 x 1000/1000)

=1000 - 141

= 859hp.

There is a humidity and temp calc but that's only a few percent.

He might mean 1,000 hp at sea level. But even at the 13,100' (14,000? I forget) or so that the top of the track is, that's still about 60% or so of the power at sea level.

[BigMuz]

Ok, fair enough.

[suzuki dave]

Yeah sea level. I once called haltech when i was installing an ecu into aircraft and was enquiring about the altitude compensation and he asked what it was in .when i told him it was aircraft he pretty much read their disclaimer clause to me

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[vet 180]

He might mean 1,000 hp at sea level. But even at the 13,100' (14,000? I forget) or so that the top of the track is, that's still about 60% or so of the power at sea level.

It will be lower again for a forced fed induction car due to the multiplication factor of the charger

[Dave]

Yeah im still here and still read the forum everyday and have followed this thread. Just dont post as much as i used to due to losing my pc to teenagers who are on it constantly leaving me to my phone..
Built a few electric cars and while they were ok they were only base models .unless you spend good money on expensive batteries you dont get the range. Unless you spend good money on a good controller you dont get the power output. Even the charging systems are complex and expensive. For a dyi guy yes you can build a cheapish car to go from a to b but the batteries wont last long , you will not get much range before batteries die , and it wont be super fast.
I now work for the team manager of nobuhiro tajima (monster) one day my dream is to actually be on the team itself . one of the interesting things i didnt even think of when tajima went from combustion engine to electric was that while the combustion engine has 1000 hp , by the time it reaches the top of pikes peak it only makes around 400hp due to the changes in atmospheric pressure. Electric car gives no fucks for atmo pressure so makes 1300 hp at bottom and top of pikes peak. The most challenging things apart from dissapating the heat from running a few thousand amps through an electric motor and trying to do the test runs before the big race while charging the batteries using massive diesel generators (so much for saving the environment with electric cars. Tajima was supplied 5 yanmar 20kw diesel generators 2 were for battery charging 1 for lighting alone and the other 2 for everything else) is actually breathing (limited)air at the top!.
I kind of miss sometimes working on the weird shit i used to do (hovercraft, homemade aircraft, gyrocopters etc) and i definately miss working on and driving old shitbox swift gti's but im sure theres a brighter future for me.
Electric cars are our future with the battery technology ever evolving. I predict that in the near future you wont have to stop and recharge and that cars will be able to drive perpetually. It has already been tested with buses i believe and charging circuits embedded in the road. Although oil companies would do everything in their power to stop this from happening.
Who killed the electric car?

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Welcome back Suzuki dave

[Billzilla]

It will be lower again for a forced fed induction car due to the multiplication factor of the charger

Too early in the morning, not sure if I'm reading that right but if it's done properly a forced induction engine will make more power at the top of the mountain than at sea level.
The reason is if you keep the same absolutely boost pressure then it'll make more power due to the lower ambient backpressure and lower inlet air temperatures.

Real-world example; the Piper Seneca 2 turbo I used to fly. It was rated at 200 hp per engine at sea level and 215 hp at 20,000'.

[Kiahatsiu]

Aye Bill, continental tsio-520 go from 290 to 310 Hp as they climb.

That being said I often wondered if they just quoted the sea level power of the non turbocharged engines just so manufacturers wouldn't have to redo their performance charts, because they certainly performed much better than the non turbo rigs.
But back on topic, maybe you should build some form of drag racing golf cart with the modern battery technology.

[TT]

Who killed the electric car?

The Stonecutters

[Crash Dummy]

Keep up the good work Smidge. Everything you guys have posted lately has hit the nail right on the head and the electric turd is no exception. It's especially interesting because it's different.

[Marty!]

Had a few hours spare in Tokyo so went and hit up Autosalon, it's definitely worth a look if you've never been. Zero jet Lag, good food, friendly people and easy to get around.

[[ryan]]

Had a few hours spare in Tokyo so went and hit up Autosalon, it's definitely worth a look if you've never been. Zero jet Lag, good food, friendly people and easy to get around.

http://youtu.be/ZJL3gpirjAo

Sweet as, some decent stuff at TAS this year... seems to be less USDM-JDM style cars thank fuck.

Hope I make it back to Japan this year as planned, having withdrawals. So much to see and do.

LOL @ Sub in a tyre being replicated

[Tripper]

Autosalon is not my cup of tea, would rather see a video with babs in it showing the various stores workshops etc he has posted in his various build threads.