 Underdrive Pulleys, Are there any out there? |
 Jun 3, 2003 - 11:14 AM
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 Enthusiast  Joined May 23, '03 From Illinois Currently Offline Reputation: 0 (0%)  |
Are there any underdrive pulleys available? I have heard that you can put an ASP underdrive pulley for a Corolla with a 7aFe engine on a ST Celica for 8hp gain. Will it fit on a celica? Are these hard to install if anyone has one of these?
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Jun 17, 2003 - 12:29 AM
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 Enthusiast Joined Apr 20, '03 From Chicago Currently Offline Reputation: 0 (0%) |
Ha, I seriously doubt 10-15 horse. Maybe 7 max... corrected. Maybe. It's worth it I'd say. I definitly did feel it, and so did my honda buddy. It says it takes a while for your ECU to adjust, so it might get me 10 in a few days. I'm skeptical about that, don't expect super gains from this.
In old cars the accessories pulley (the one I replaced, and you would be replacing) came in two parts. In between was a rubber ring that absorbed the harmonic shocks from the engine pistons moving. It was long rumored that such a thing existed in cars today, and replacing it would destroy your engine in the long run. I have never heard of anyone having an underdrive pulley destroy their engine, and I can say and prove that the pulley for the 5sfe in the ST204 is one peice solid metal. I suspect the same for the 7afe. |
Posts in this topic
TRDDawg Underdrive Pulleys Jun 3, 2003 - 11:14 AM
HyperDeathKill www.unorthodoxracing.com
I just ordered mine, and... Jun 3, 2003 - 11:19 AM HyperDeathKill I'm going to do a write up when I install it, ... Jun 3, 2003 - 11:20 AM BlackSTX OBX Racing Sports also has one listed on their web... Jun 3, 2003 - 1:05 PM XSTeknique Just an option/suggestion or whatever, from prior ... Jun 4, 2003 - 3:27 PM TRDDawg QUOTE (HyperDeathKill @ Jun 3, 2003 - 8:34 AM) I... Jun 4, 2003 - 4:01 PM HyperDeathKill Yea, I have heard both sides of the "harmonic... Jun 4, 2003 - 4:06 PM TRDDawg I e-mailed a guy from asp and they said that the p... Jun 4, 2003 - 7:11 PM BlackSTX If you go to ASP's site, they say something ab... Jun 12, 2003 - 11:51 AM HyperDeathKill I installed my underdrive pulley yesterday. It is... Jun 12, 2003 - 12:45 PM kuruptedsnake did u recieve any noticible horsepower from the pu... Jun 13, 2003 - 12:45 AM TRDDawg Ok whats a harmonic balancer? Jun 14, 2003 - 7:41 PM Blackcelliman I tried to install mine the other day. I loaned a... Jun 17, 2003 - 1:49 AM HyperDeathKill Yes, look in your manual (if you don't have on... Jun 18, 2003 - 9:15 AM
Blackcelliman Thanks alot. I did give that bolt a try, but it d... Jun 18, 2003 - 7:02 PM |
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