respect123

Does the air conditioner really use alot of hp, I've heard that this is the case.

So turning off the air conditioner will improve hp.

mfried@twcf.rr.com

PIONEER

iTrader: (1)

yes it takes the extra stress off the engine. Trust me it works. everytime I hit the throttle I turn the AC Off. and when I'm done haveing fun I turn it back on.

ander

I do the same, when i need to jam it, i turn off the ac. The way AC works is by a compressor, and it takes at least 4, up to 12 horsepower to run the compressor. That's 4-12hp taken away from your drivelines.

mdeal

iTrader: (2)

My research tells me if you get a UDP (Under-drive pulley) it makes up for the difference in what your A/C consumes. The UDP provides just enough extra HP (actually frees it up) that it compensates for the loss of power.

BEJAY1

iTrader: (19)

mdeal's right that the UDP should make up for the lost HP.

Contrary to what Random Tech says it does effect the A/C a bit. Doesn't get quite as cold and takes longer to cool down a hot car.

Some cars, like a previous Saturn SC2, turn off the compressor when you punch it. Very nice feature.

Sly

Supposedly, the 5th gen's ECU will turn off the AC at WOT as well. So, if you really get on it, you don't have to fumble with the switch yourself.

madmax2k

[/I][/QUOTE]

Supposedly, the 5th gen's ECU will turn off the AC at WOT as well. So, if you really get on it, you don't have to fumble with the switch yourself. [/I][/QUOTE]

Yes, I believe my 2k has an AC cutout relay when at WOT.

As an aside, I dyno tested my last car, a VW VR6 with and without the AC on. With the AC on, it lost about 7 hp at the wheels.

CoolMax

iTrader: (7)

would the UDP would add 4-12hp?
Or as in madmax2k's case...a UDP would add 7hp to the wheels?

GT_icecream

iTrader: (5)

They said they do not have a under drive pulley for our 5th gen yet.........

has anyone been told differently ?

mdeal

iTrader: (2)

I looked at Unorthodox Racing's website, http://www.unorthodoxracing.com, and saw an application listed. The "Ultra S" is the one.

Here is a direct link to the application list: http://www.unorthodoxracing.com/nissans.html

I'm gonna get one when some funds free up. If nothing else, it will look cool when I'm down there changing the oil filter.

GT_icecream

iTrader: (5)

I've been told by my honda friends that they've had people using UO's pulley but something wasn't right and it eventually wears off the belt.............is this possible??

I'd like to get the pulley too if it's available....assuming i save up enough $$$....