Underdrive Pulleys - Page 2

Dixie Design · #11 Sat, February 28th, 2009, 11:15 PM

If they send the correct kit I'll lettou know the part number!

Dixie Design · #12 Tue, March 3rd, 2009, 12:18 PM

I've read some stuff about underdrive pulleys not turning your alternator enough. Would anyone suggest bumping up my idle on the Gryphon?

***Jackpine*** · #13 Tue, March 3rd, 2009, 12:50 PM

That's the usual procedure, since underdrive pulleys turn things more slowly. But, unless you do a lot of idling with a heavy electrical load, you may not have to change the idle speed. I imagine, with a Gryphon, you could simply monitor your charging voltage to see if there's really any reason to adjust the idle.

It might really be needed if you coupled the pulleys with e-fans, since they add to your electrical load.

- Jack

Dixie Design · #14 Tue, March 3rd, 2009, 02:05 PM

Quote:

Originally Posted by JackandJanet

That's the usual procedure, since underdrive pulleys turn things more slowly. But, unless you do a lot of idling with a heavy electrical load, you may not have to change the idle speed. I imagine, with a Gryphon, you could simply monitor your charging voltage to see if there's really any reason to adjust the idle.

It might really be needed if you coupled the pulleys with e-fans, since they add to your electrical load.

- Jack

Yeah, efans are in the works. Especially now that Summit is sending me a $140 gift certificate for my troubles. Still lingering between building my own kit or buying one. Just can't justify Troyer's $425 set, Flex-a-lite is right up there in price too.

***88Racing*** · #15 Tue, March 3rd, 2009, 03:07 PM

Hey Dixie Design

Read Troyer spec on his efans and under drives. I think it said 130 amp min altenator w/ efans and underdrives. The FAL efans I priced were about $175 more than Troyers @ Jegs. Just my opinion also is that Troyers look safer, they have a grill shroud on them.

Lars

Edit: Troyer specs that his efans will work even if you don't have the optional 130 amp alt and are running UD pulleys

Dixie Design · #16 Tue, March 3rd, 2009, 05:20 PM

yeah, I really like everything I've read and heard about Troyer's efans. Just a lot of money to spend after everything else I've done lately. Just need to quote my next customer enough to cover the efans

***88Racing*** · #17 Tue, March 3rd, 2009, 05:40 PM

Hey Dixie

The kid called me and said they came in the mail today. Probably be this weekend or the next before I get them on. I will keep you posted.

Lars

Dixie Design · #18 Tue, March 3rd, 2009, 08:13 PM

Quote:

Originally Posted by 88Racing

Hey Dixie

The kid called me and said they came in the mail today. Probably be this weekend or the next before I get them on. I will keep you posted.

Lars

You talking UD Pulleys or eFans? I'm checking the forum on my cellphone and might have missed something.

***88Racing*** · #19 Tue, March 3rd, 2009, 10:24 PM

The pulleys
Sorry about that.

Lars

Jon Roseman · #20 Tue, March 3rd, 2009, 11:50 PM

Here is some UD pulleys that I found. I'm not sure how good they are but they're cheap.

http://www.rpmoutlet.com/f150asp.htm