aluminum underdrive pulleys are a MAINTAINENCE item
#28
FREAK ALL OUT!!!
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I will have to keep my eye open for these to come into group buy
-Chance
#30
wannaspeed.com
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too bad there isnt a belt replacement that has some kind of ribs on the outside, course that might eat through the aluminum even quicker. I like how much simpler the engine bay is without the extra belt routing, there must be a good solution besides adding more or new parts.
#31
Personally I didn't need the huge clearence, so this pulley by Chadwick would have most likely worked for me.
#32
The solution you are looking for is an electric water pump.
Maintaining the OE water pump requires you to use at least close to the stock amount of belt wrap. The only way to do this properly with the air pump gone is to install an idler pulley. There is no other way. You might be able to make some more elegant belt routing with a different pulley location (like the hot rodders do) but you have to have the wrap with the OE water pump, and this is the best way to get it. The idler pulley is in my opinion a very elegant and slick solution. Much better than the Greddy pulley kit which is just a very poor solution to the problem...again IMO. But then again, they got me to buy their kit before I realized that I needed the Pineapple Pulley to really be safe and eliminate belt slip.
FWIW. I posted my Pineapple idler pulley for sale and sold it in less than 15 minutes for, I think, $165 shipped. I got PMs more than 3 months latter from people wanting to buy it from me. I think there is a market there if someone can produce a good solution.
#34
CURVE OF CONSTANT WIDTH
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Another option instead of the standard aluminum underdrive pulleys are glimers. I know they make gilmer pulleys for 1st gens and 2nd gens, but never seen one for the 3rd gen.
http://www.tweakit.net/shop/product_...roducts_id=102
I know this could be accomplished by using the front housing/water pump from a second gen.
http://www.tweakit.net/shop/product_...roducts_id=102
I know this could be accomplished by using the front housing/water pump from a second gen.
#35
Will TIG for 20b
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Another option instead of the standard aluminum underdrive pulleys are glimers. I know they make gilmer pulleys for 1st gens and 2nd gens, but never seen one for the 3rd gen.
http://www.tweakit.net/shop/product_...roducts_id=102
I know this could be accomplished by using the front housing/water pump from a second gen.
http://www.tweakit.net/shop/product_...roducts_id=102
I know this could be accomplished by using the front housing/water pump from a second gen.
But if you use the front case off a 2nd gen, then wont you need a custom oil pan?
#38
FREAK ALL OUT!!!
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so my noob question of the month:
Can I just turn the belt inside out? So the ribbed side hits the waterpump and since the alt and crank pulley have more surface grip will be ok???
Can I just turn the belt inside out? So the ribbed side hits the waterpump and since the alt and crank pulley have more surface grip will be ok???
#41
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Wow, for once I can say I'm glad I still have my air pump connected?
I was thinking about removing it too but with California smog Laws and My laziness, I have left it on.
I was thinking about removing it too but with California smog Laws and My laziness, I have left it on.
#43
Racecar - Formula 2000
Someone needs to come up with a standard rotation water pump that is also an upgrade. Then you could use a standard serp belt and rx-8 pulley. They do not suffer any slippage even at 9000rpm, because the ribbed side of the belt is making contact on the pulley, this is the side with the softer rubber that provides better grip. The topside of a serpentine belt is slick and not really meant to provide any grip, and that is part of the problem we face.
Dave
#44
Fast + Reliable = $$$$$
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Another idea that came to mind would be to fab an alternator adjustment bracket that allows it to be pulled higher, allowing the belt to hug the waterpump pulley some more.
I guess the belt contact wouldn't be a much as we would like, but it can be just enough with the larger diameter aftermarket waterpump pulley.
Any thoughts?
I guess the belt contact wouldn't be a much as we would like, but it can be just enough with the larger diameter aftermarket waterpump pulley.
Any thoughts?
#46
wannaspeed.com
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Yeah that makes sense. I thought of that too. I don't know if the two belts would ride on eachother correctly. Maybe if the other pulleys were deeper or the belts were glued together. Then there is still the issue of contact area. Although with two belts it would put more pressure on the pulley even if it wasn't a grooved pulley it might work better. I thought of using some kind of rubber stuff on the outside of the belt to make it stickier but that would prob wear off in short time
#47
Corea FD
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keep in mind that the slippage occurs at the higher RPM range and once the heat come in to factor the only real solution to insure the proper water pump rotation is maintain your stock air pump or install a idle pulley. just wait for the group buy or start calling paineapple racing and put pressure on them for a re-run
#50
Rotary Enthusiast
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Yeah that makes sense. I thought of that too. I don't know if the two belts would ride on eachother correctly. Maybe if the other pulleys were deeper or the belts were glued together. Then there is still the issue of contact area. Although with two belts it would put more pressure on the pulley even if it wasn't a grooved pulley it might work better. I thought of using some kind of rubber stuff on the outside of the belt to make it stickier but that would prob wear off in short time
would changing the rotation of the water pump work? My friend put the belt on the wrong side of the pulley one time, and ran it for maybe a week until i told him it was backwards.