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underdrive pully

rathy1406

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UD Pulleys are a waste of time unless you are going big cam and only to help with ancillary accessories cope with the idle speed.

In relation to you using the NOS system untuned I reckon you are playing Russian Roulette I could go into detail as to why but unless you tune cars yourself you may not understand it all.
 

Gen3Jonesy

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i got a 25% underdriven pulley but its not on the car yet im strugglin to get the stock one off haha... 1735kg??? are you sure?? i doubt its that much lighter than the wh...
Apparently you need a specialised and quite expensive tool to get them on/off without going bald from stress... They dont mention that part on ebay :)
 

1340loco

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Apparently you need a specialised and quite expensive tool to get them on/off without going bald from stress... They dont mention that part on ebay :)

I will call b/s on that as all i used was a twenty dollar balancer puller.
 

walesy

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and i got mine off eventually :p ... used a $50 truck sized pulley tool :p
 

Gen3Jonesy

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I will call b/s on that as all i used was a twenty dollar balancer puller.
I didn't say you cant do it without this "Tool"... It just apparently makes it easier.
 

Ray-915

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you wont feel a difference at all from a 7-10rwhp gain in a stato...or any car of that weight...seriously
 

walesy

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you wont feel a difference at all from a 7-10rwhp gain in a stato...or any car of that weight...seriously
no but it revs out quicker and is more responsive... also most places will suggest putting one in before a cam install
 

Ray-915

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no but it revs out quicker and is more responsive... also most places will suggest putting one in before a cam install
very true, it just sounded like this was all you planned to do and was hoping for decent gains from it is all
 
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