Underdrive pulley with damper for 3400

[torq455]

i have an FFP that's off the car as well. just let me know.

[gectek]

do either of them have the timing ring on them? that is the factor that I am looking for. It has to have that, so they can design these to incorportate that and be smaller as well.

[torq455]

ohhh, i see. hmm.. i don't think so. i'll check tomorrow and see what i can come up with.

[andrew383]

i had to take the one off the stock pulley and put it in the mrz pulley (talk about a PITA)
so yes it has the timing ring.pm if you want to work something out.

[gectek]

pming

[3400-95-Modified]

You can't go any smaller on the reluctor ring, If they just take the previous designs and make the back the size to accept pressing in the ring all will be good, BUT the only problem with that is now you have to add space outside of that for the dampener and then the pulley surface... so in the end you end up with something that's almost of stock DIA...

My FFP is at my house with a ring installed if needed but I see many others have offered up their pulley's

[gectek]

Werd, thanks man. Yah...its the ring that makes the trouble. BUT if you can machine the back of the pulley with notches, then do you need the ring anymore? HMM interesting.

[3400-95-Modified]

Werd, thanks man. Yah...its the ring that makes the trouble. BUT if you can machine the back of the pulley with notches, then do you need the ring anymore? HMM interesting.

True, but you really cant go any smaller... The ring is only heavy sheet metal thickness... so you still need to be at least the internal DIA of that...its the timing cover mounting of the sensor that screws it up, and the count of the notches on the ring.

Unfortunately with a dampener option it wont be as small as the smallest UDP... due to the fact that you need that extra 1/8th or 1/4" for the dampener material... If you ask me its still an improvement if its just a little smaller, has the dampener and weighs less than that factory hunk of shit.

[gectek]

ie 5-10%

[3400-95-Modified]

MRZ is 15% or so smaller... 6" to 5" and its 4lbs lighter... that's the big increase there... so if you had to make it only 5.5" dia to allow for the dampener that would be a 10% size reduction, so I think that would be just fine.

I think MRZ was the same size as a FFP, so really in the end you would have as bad as a voltage drop with the dampener style one vs the solid ones.

This is how tight a fit his are... so if you added .5" dia that would give you space for a 1/4" thick dampener ring... Although I'm not sure how thick the wall is on this version from the inside dia to the min dia on the belt groove, meaning I'm not sure if you could simply split that thickness in half to add the dampener and not have to beef up one side or the other...

[Alxsmt]

any update?

[gectek]

still need a pulley....the guy i was supposed to get one from hasnt contacted me back yet

[SappySE107]

i just sold one for 10 bucks plus shipping!

[sanjay]

I'll help out if I have a pulley you need. What exactly are you looking for??

[torq455]

he wants a stock 3400 crank pulley with the 24X ring in it.