The ASM Lounge
#461
Former Sponsor
Thread Starter
Originally Posted by o'malley_808,Feb 17 2010, 11:31 PM
Hmm soo asm runs a lightweight crank pulley? Have they had any problems? Everyone on this forum is scared to use one and advises against it...it would be nice to have some insight on this
For more information and pricing:
http://www.gotuning.com/product_info.php?f...roducts_id=1198
ASM is also currently designing the auto tensioner and idler pulleys to complete the set. Toda didn't produce these items because there's very little performance benefit in replacing them with lighter versions. They were also omitted from the Toda kit in an effort to keep costs down because CNC T7 is extremely expensive in Japan. However ASM customers felt that the set looked incomplete and mismatched so ASM is taking it upon themselves to produce the complementing pair.
Is it still in the design stages at this point, for more info:
http://www.gotuning.com/product_info.php?f...roducts_id=1311
#462
If cnc milling of t7 is expensive in japan cant they ( toda,asm ) pull a greddy and use a usa warehouse to complete products at a lower cost yet still stay true to their stringent workmanship ??
#463
Registered User
Posting my single rare ASM part...ASM Race Catch Can. I believe it's the only one in the US. Had it custom anodized black to go better in the engine bay. The battery is a Varley Red Top 15, same battery that ASM uses/used with their set-up and believe it's the only battery that will fit perfectly.
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satoo7 (07-20-2022)
#464
Edit: ^awesome catch can!
I think though that the major concern with using lightweight pulleys like that is that the crank pulley does not have a harmonic damper.
At least in the Prelude community, there was one instance that a motor failed and was using an Unorthodox Racing lightweight pulley. This scared pretty much every Prelude owner into not ever running a lightweight pulley. Then later, the shop who came out with the initial information said that the failure could have been due to improper installation of other engine components. That didn't really help though because the damage was already done and due to that one incidence, pretty much no Prelude owners run a lightened crank pulley.
Logically thinking though, as long as the pulley is balanced to an extreme tolerance, there shouldn't be any wobble at higher RPMs. I could see problems arising if the pulley was slightly unbalanced, and at speed, it would just wobble the crank to death.
I just did some research on the topic, and it seems like it's still up for debate. I wonder if we'll ever know 100%
-Colin
I think though that the major concern with using lightweight pulleys like that is that the crank pulley does not have a harmonic damper.
At least in the Prelude community, there was one instance that a motor failed and was using an Unorthodox Racing lightweight pulley. This scared pretty much every Prelude owner into not ever running a lightweight pulley. Then later, the shop who came out with the initial information said that the failure could have been due to improper installation of other engine components. That didn't really help though because the damage was already done and due to that one incidence, pretty much no Prelude owners run a lightened crank pulley.
Logically thinking though, as long as the pulley is balanced to an extreme tolerance, there shouldn't be any wobble at higher RPMs. I could see problems arising if the pulley was slightly unbalanced, and at speed, it would just wobble the crank to death.
I just did some research on the topic, and it seems like it's still up for debate. I wonder if we'll ever know 100%
-Colin
#465
Kind of scary. Im sure there were other mods than just the ud pulley and it took the blame..although any motor mod must be heavily considered, anything other than stock and you have to accept failure
#468
Registered User
I picked it up from a member that often gets in rare parts from Japan. I don't believe ASM has ever sold them in the US and am not sure if they were sold in Japan. I will try to get some good pics soon, but for now, that's all I have.
Ryan
Ryan
#469
Former Sponsor
Thread Starter
Originally Posted by dantediss,Feb 18 2010, 12:36 PM
If cnc milling of t7 is expensive in japan cant they ( toda,asm ) pull a greddy and use a usa warehouse to complete products at a lower cost yet still stay true to their stringent workmanship ??
#470
Former Sponsor
Thread Starter
Originally Posted by Ro_Ja Boy,Feb 18 2010, 03:20 PM
I picked it up from a member that often gets in rare parts from Japan. I don't believe ASM has ever sold them in the US and am not sure if they were sold in Japan. I will try to get some good pics soon, but for now, that's all I have.
Ryan
Ryan