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Old 01-12-2002, 04:25 PM   #1
no_rex_yet
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04 330cic

Default Vishnu crank pulley

Posted this in the Forced Induction thread, but thought it'd be worthwhile to have it here too for easier seaches.

I took the plunge and had the Vishnu installed (tried it myself but couldn't get the damn thing off), and I LOVE IT!

No problems hitting the 7k redline (my engine is stock except for ITG filter). The engine now revs much more naturally and evenly, in contrast to stock where it would bog below 3k rpm and then finally rev up. I can pull easier out of 2nd gear "rolling stops," and drive easily in 5th gear at 45-50 mph (whereas b/f, it would lug until I reached 50-55 mph). I can barely notice dimming of lights at idle, but only with my fogs on concurrently. Much, much less dimming than when I had AEM pullies on my old Honda. I have to really try to look for it to notice.

Also, my shop mentioned that they've seen people (or person) with a crank pulley problem when the bolt has not been torqued enough on the install. The pulley will wobble and transmit vibration that eventually destroys the block This appeared in only one case however, I think. So, make sure you torque them down! Not sure what the spec is though.

In any case, this is an awsome mod that greatly increases drivability. Keeping my fingers crossed that nothing bad results from it
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Old 01-14-2002, 12:41 AM   #2
girl
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yup. now it's time to take the plunge for the rest of the stage0. u wont regret it
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Old 01-14-2002, 01:01 AM   #3
nhluhr
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I also have a Vishnu underdrive pulley and my sentiments are just as above: Feels great! Easy to install!

Only gripe is that the provided 850-length belt for the PS and Alternator is a bit hard to get on but can be done given some patience and hard work (get a friend to help roll the belt on).

Once fitted, all is well.
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Old 02-13-2002, 03:52 PM   #4
cmaj7
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WR Blue

Default Vishnu

I also installed a Vishnu Underdrive pulley. Biggest difference I notice is better engine response and power comes on much more smoothly.
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Old 02-25-2002, 02:10 PM   #5
Ben R.
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Default Re: Vishnu crank pulley

Quote:
Originally posted by no_rex_yet
The pulley will wobble and transmit vibration that eventually destroys the block This appeared in only one case however, I think. So, make sure you torque them down! Not sure what the spec is though.
keep in mind that crank bolts are made to strech a certin amount. You do not want to over torque the bolt as that will sometimes make the bolt snap while in use.
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Old 02-27-2002, 07:46 PM   #6
Si2WRX
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How much is just the pulley?

What IS the torque spec for the crank pulley bolt?
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Old 03-05-2002, 08:34 PM   #7
roadr8cer2
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Question vishnu pulleys worth it?

Wondering if any one noticed power gains from this mod alone?
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Old 03-05-2002, 09:16 PM   #8
2OHOH2WRX
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Yes, there is a small but noticeable difference in the way the car idles and revs up.

BTW, this should be posted in one of the technical forums, like Factory Forced Induction... after a search, because I'm certain that this topic has been mauled to death by now
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Old 03-06-2002, 02:07 PM   #9
Narcisse91
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About 95 lbs.
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Old 03-21-2002, 10:19 PM   #10
Redleader
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STi swap luvin it!!!

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I after puttting my Vishnu pulley on I notice a very nice improvement in torque!

Sometimes I wonder if the nuts is on there right because when the engine is running the nut looks like it is wobbling but the pulley rotating smoothly. Could I have a bent or asymmetrical nut?

Redleader
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Old 03-22-2002, 09:31 AM   #11
no_rex_yet
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The wobbly nut thing is normal. There's some paint or something on it that makes it look like it's wobbly. It's not
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Old 03-22-2002, 12:39 PM   #12
Redleader
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STi swap luvin it!!!

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Thanks! I was a little worried. I don't want main bearing probs.

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