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Old 04-16-2005, 02:17 AM   #1
svek
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Default best (lightest) NOT underdriven crank pulley

like the title says. which is the lightest stock sized crank pulley? did a search, found no actual specs. (probably did it wrong but oh well)
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Old 04-16-2005, 07:27 AM   #2
PARANOID56
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i think the perin one, then the mr josh one
Shane
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Old 04-16-2005, 09:18 AM   #3
sebtarta
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Old 04-16-2005, 10:39 AM   #4
omahasubaru
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Quote:
Originally Posted by sebtarta
I agree!!

Best price too!
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Old 04-16-2005, 07:03 PM   #5
Caplin 2.5
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Perrin Pulleys.... can't go wrong for 125 bucks.
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Old 04-16-2005, 09:39 PM   #6
Crash477
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Sonin was great too.
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Old 04-16-2005, 10:14 PM   #7
WeloReX
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Agency Power has one out that Rallitek is selling on special for 99.00 bucks and I think they weigh the same as the Perrin but they have that nice billet look...
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Old 04-16-2005, 10:20 PM   #8
WeloReX
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I just did a quick search, the Perrin is 1.2 lbs the Agency Power is 1.1 lbs. Maybe if the Perrin logo is shaved off it would be the same...
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Old 04-16-2005, 10:22 PM   #9
svek
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mr josh pulley looks like the way to go. 1.2 lbs, 90 shipped. what a deal.
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Old 04-16-2005, 11:07 PM   #10
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Quote:
Originally Posted by svek
mr josh pulley looks like the way to go. 1.2 lbs, 90 shipped. what a deal.
I bought and paid for mine almost three weeks ago and still haven't got it. Buyer beware.
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Old 04-17-2005, 01:36 AM   #11
BlkTS02
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Quote:
Originally Posted by OneOBS
I bought and paid for mine almost three weeks ago and still haven't got it. Buyer beware.
Sometimes he takes awhile to respond.

I chose Mr. Josh's pulley after holding it next to a perrin pulley. I honestly think it's made a little better.
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Old 04-17-2005, 09:39 AM   #12
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would a aftermarket pulley, such as Mr. Josh's be an easy, good, first mod to a NA car? what sort of improvements are there?
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Old 04-17-2005, 09:39 AM   #13
omahasubaru
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Mr. josh is top notch. I did a GB on them ahile back.Have many different scoobies with them still runnin' great. Been over 2 years.
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Old 04-17-2005, 10:39 AM   #14
OneOBS
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Quote:
Originally Posted by BlkTS02
Sometimes he takes awhile to respond.

I chose Mr. Josh's pulley after holding it next to a perrin pulley. I honestly think it's made a little better.
I got a note this morning with a FedEx number. Paying with Paypal and then having the part get shipped three weeks later is completely unacceptable. It feels like you're sending your money into a black hole.

I like the product. That's why I bought it. If you're going to run a business, there are certain expectations that need to be met. Had he responded immediately and said it would be 2-3 weeks before it was shipped, that would have been OK, but there was nothing...
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Old 04-17-2005, 01:18 PM   #15
svek
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Quote:
Originally Posted by Iceman12321
would a aftermarket pulley, such as Mr. Josh's be an easy, good, first mod to a NA car? what sort of improvements are there?
according to his site:

-better throttle response and engine braking
-average gain of 8hp at the wheels


i would say that is worth $90. and with all power mods they work together. the more you put on the more power you get out of each part.
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Old 04-18-2005, 02:48 AM   #16
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i doubt there's 8 whp gain from light weight pulley along, but the engine does rev up quite a bit faster in first and second gear (and first and second gear only, i timed it...)

btw, is it just a myth or it's really bad to have both the light weight pulley and light weight flywheel?? and why is so bad?
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Old 04-18-2005, 08:17 AM   #17
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Quote:
Originally Posted by anonymous_wolf
i doubt there's 8 whp gain from light weight pulley along, but the engine does rev up quite a bit faster in first and second gear (and first and second gear only, i timed it...)

btw, is it just a myth or it's really bad to have both the light weight pulley and light weight flywheel?? and why is so bad?
Just a myth.
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Old 04-18-2005, 11:35 PM   #18
kulaid982
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Well, not neccessarily a myth...

In the reading that I've done, doing a lightweight pulley and lightweight flywheel is just fine for our boxer engines, as we have a nice short crankshaft. However, when you've got a V8 which has a longer crankshaft, having lightweight at both ends (pulley and flywheel) can allow for some funky vibrations that are not neccessarily good for your engine.

Bottom line, on our cars you should be fine doing both because the crankshaft is too short to allow for those funky vibrations to occur, but if you have a bigger engine with a longer crankshaft, pick one or the other to be safe.

PS: I apologize for being too lazy to redo all the research I've done before to link to threads, but everything I read was either here or at the Cobb forums, so happy searching if you don't believe me!!!
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Old 04-19-2005, 01:40 AM   #19
davidji
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1. Anyone done G-Tek or dyno on just the lightweight pulley vs. stock?
I didn't expect much from it (and not 8whp). If it actually did 8whp for example, I'd likely do it. Even if your results are for an underdriven pulley, I'd like to see 'em.

2. Do vibrations go up? Aren't you giving up your harmonic balancer? Does that shorten main bearing life? Void engine warantee? I guess at 30k miles, I don't have much of that left anyway (IIRC the warantee is for 36k miles).

I wasn't considering the pulley, but if people have actually seen significant power gain, I would. I guess the way I saw it is in this case where the pulley would actually be cheaper to manufacture than stock, and saves weight, if it were a good thing FHI would build the cars that way. If I'm wrong, let me know.
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Old 04-19-2005, 02:42 AM   #20
quest
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Quote:
Originally Posted by Crash477
Sonin was great too.
sonin pullies are mr josh pullies
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Old 04-19-2005, 02:57 AM   #21
anonymous_wolf
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Quote:
Originally Posted by quest
sonin pullies are mr josh pullies
not really, my friend has mr josh and i have the sonin from crash477
sorry to say this but mr josh is ALOT better built. ie, installation of mr josh was a breeze, slide right in and fit perfectly.
for sonin, we had to use the bolt to force the pulley into place.

as for the performance gain.
i did a little stop watch 0-100km/h test. seems like there's about 0.2-0.4 sec reduction in the 0-100km/h time after i installed the pulley and Grp N tranny/ engine mounts.
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