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Underbody braces, turbos and more!

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PostPosted: Thu Jun 05, 2008 11:57 pm 
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Joined: Thu Jun 05, 2008 5:13 pm
Posts: 22
Location: Brentwood, CA
Most A/C compressors are designed without super efficiency in mind, what's a few more HP to drive an accessorie if you have 140hp or more on tap?

Has anyone looked at A/C compressors used in the Insight or Prius for adaption to a 3-cylinder Suzuki? I think Hondas spin backward (to every other mfg) so maybe Prius or other modern fuel sipper?


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PostPosted: Fri Jun 06, 2008 10:00 am 
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Joined: Wed Sep 28, 2005 6:52 pm
Posts: 290
Location: Utah
Well, I believe Honda is now spinning their motors in the same direction as everyone else. I think it's been that way for many years now.
Also, the prius and the insight have electronic A/C Compressors, so it doesn't really matter what direction the motor spins in since it just needs electricity, not engine rotation. You'll probably need to upgrade your alternator and battery if you want to do this. I think I remember reading that the Prius setup draws a couple hundred watts...


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PostPosted: Wed Jun 18, 2008 11:12 am 
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Joined: Mon May 19, 2008 4:14 pm
Posts: 10
The Prius A/C runs on the 500V DC motor bus, so that's out for our cars.


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PostPosted: Wed Jun 18, 2008 11:36 am 
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Joined: Thu Jun 05, 2008 10:47 am
Posts: 24
Location: so. in.
Joe_G wrote:
The Prius A/C runs on the 500V DC motor bus, so that's out for our cars.

well poop :x


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PostPosted: Sat Jun 21, 2008 1:44 am 
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Joined: Sun Aug 20, 2006 11:31 pm
Posts: 57
Location: Lummi Island
Sanyo use to make the smallest, most efficient compressors,
I will be looking in to this as my Geos don't have air and I am moving back to
Arizona.....
Insulation and window film will reduce the amount of AC power needed
to keep the car cool. Unfortunately, you need to gear the comp.
for low speed (idle) where it is needed the most. At high speed,
there is a lot more air moving through the condenser, so the compressor
could actually spin slower and still do the job. A constant speed torque
converter or 2 speed hub on the comp. could seriously reduce the power
drain at freeway speeds....

MM


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PostPosted: Mon Jun 23, 2008 8:09 pm 
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Joined: Thu Jun 05, 2008 5:13 pm
Posts: 22
Location: Brentwood, CA
3play wrote:
Sanyo use to make the smallest, most efficient compressors,
..... A constant speed torque
converter or 2 speed hub on the comp. could seriously reduce the power
drain at freeway speeds....
MM


I was thinking along the same lines, but it would be nice to come up with a plug-n-play high efficiency compressor where all we had to worry about were 'one-time' modified mounting brackets.

laong with window film, another way to reduce AC load would be to cutain off the front compartment


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PostPosted: Mon Jun 23, 2008 11:53 pm 
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Joined: Sun Aug 20, 2006 11:31 pm
Posts: 57
Location: Lummi Island
The other unknown trick is to replace R-12 with propane.You need the same ratio
of lube added to it, but it takes less energy due to lower vapor pressure.
It is also compatible with R-12, so you can just top off with it.
Yes it is flammable, but so is all that gasoline......

MM


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PostPosted: Tue Jun 24, 2008 8:32 am 
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Bozo the crying clown

Joined: Tue Mar 13, 2007 9:19 am
Posts: 414
Location: Chester County PA
From everything I have read, propane is the real deal for AC....
RV'ers use it out in the southwest. I had a really nice article that explained everything in great detail. I will look for it and post it.


I JUST replaced my compressor and was going to go that route, but my buddy didn't want to weld different fittings for propane. :-( ( you can't use the shop AC gauges after that)


as an FYI....r12 is almost as flammable as propane..... Not really more of a safety hazard...


Still blows SUPER cold. :-)



Jimmy


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PostPosted: Wed Jun 25, 2008 8:19 pm 
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Joined: Fri Jun 03, 2005 4:36 pm
Posts: 493
Location: Roscommon, MI
jimmyjr wrote:
as an FYI....r12 is almost as flammable as propane..... Not really more of a safety hazard...


You're joking, right? Refrigerants are designed to be non-flammable, and at high temperatures, will turn into poisonous phosgene gas.


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