i found this under drive pully from mazdatrix.com part number 11469. If install this pully will i be able to run my accesories too. i dont get how it works. is the stock pully 2 peices?
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I have underdrive pullies. At idle my cars' voltadge drops. It isn't that big of a deal for me, as I don't spend that much time at idle.
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I just installed some underdrive pullys in my car. I have debated it and keep waffling over it.
Yes, my voltage dropped at idle and low RPMs but it seems to be the same at higher RPM's. Why did I install the pully's? Because at a very fast Autocross where my car spent 75%+ of its time over 5K RPMs I had some problems with my cooling system. The problem or I should say argument I am having with myself is that I street drive my car a lot. Probably 95% of the time. So was the pully kit necessary? It is simple to install and I am toying with just swapping it on when I am going to race an Autocross. If you are doing it soley for looks or for 2 more RWHP I would save my money. |
i had a mazdaracing kit for my n/a fc, so i could retain p/s and a/c. Everything seemed to work fine. p/s kept up, and a/c was still cold.
there was a small voltage drop at idle, @900 rpm, so i raised it to 1100rpm, and it charged 14v. perfect! I really like mazdaracing stuff. good quality, but they're aren't populaur enought to sell it for 1000% profit. So it makes it a killer value. On a stock n/a they have dyno charts showing before and after. It was like 10 hp, and 8 ft/lbs. In a turbo car, it's not night and day, but in a n/a every little bit counts! |
Yeah, the Mazdaracing stuff is top notch (good CAD designs)
TII street car, I wouldn't waste the time. N/A hell yeah! Street/ race, doesn't matter. Jim, I believe what's happening with yours is @ high RPM's, the water pump is not so much pumping as it is churning the water. In that case, I agree, got to under drive that bitch! We need a kit that under drives the water pump but over drives the alt. |
someone should design an overdrive alt pully https://www.nopistons.com/forums/pub...IR#>/boink.gif
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I am having trouble with the Air pump belt, A/C belt, and PS belt fitting on tight. I have run out of room on all 3. The alternator belt fits on fine.
Anyone have similar problems? |
Rez, I would install shorter belts to give you your adjustment back
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[quote name='banzaitoyota' date='May 5 2005, 06:37 AM']Rez, I would install shorter belts to give you your adjustment back
[snapback]708587[/snapback] [/quote] Yeah, as I figured. I ended up maxing out the air pump after doing some cutting on the bracket to give me that extra 1/4 inch length to get the belt fully tight. I also used a spare air pump belt for the AC compressor. The tension pully was maxxed out. As for the power steering, it's somewhere between the size of the A/C belt and PS belt. The alternator belt seems to work fine, however, it also is near max tension room on the bracket. I just thought I'd share for anyone considering this setup. |
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