RedLined

This weekend I attempted to install a 2.7 pulley only to find that my hub is not centered on the snout. Its about 3-5mm closer to the engine side than the front of the car. Anyone ever hear of anything like this? The superchargeer spins freely and doesn't look or sound like it's damaged. Anybody have any idea If I can still have the snout machined, or is it impossible since machining tools are usually positioned on the snout, sould I say f@ck it and just sand it down by hand? Should I not waste more money on it and just get a tvs?
I'm thinking if something is wrong with the snout, but the SC still works fine, then perhaps there are other things wrong with the rest of the SC to the extent that I cant just replace the snout. Anyone have any ideas?

Olybaltss

ZZP says on theirsite that anything 2.7 or smaller will actually require machining on the snout for the pulley to fit properly.

"By developing Ecotec specific pulleys we have run all the way down to 2.6" with out snout machining. However each snout is casted and machined differently so we only guaranty down to 2.8" without machining."

That is listed on the page for 2.7" M62 pulleys

..also, i don't know a ton about machining and all, just ran across this in my homework in the past. hope its helpful lol. (They also have the machining tool for sale on their site)

Sharkey

iTrader: (1)

can you post a pic? im not sure if im understanding your post correctly.

the casting of the blower snout might not be perfect, they never are. if there is more material on one side of the bearing, thats caused by a shifted castingm however its consider that normal. castings arent always perfect, as long as they are in tolerance they get used. depending on the pulley you have, you might need to machine the snout to get it to clear. you shouldnt have an issue with machining the snout (using the tool) it will just take more material off one side.

fyi- i run a zzp 2.7, didnt have any issues.

Olybaltss

I didn't know if what i was responding with was actually legitimately relevant, so i might just be going the complete wrong direction lol. ZZPerformance - Snout Machining Tool #ZZ-SMT that's the tool i was talking about, but it sounds like i was confused lol

RedLined

That's the tool I was not sure would work. No worries though decided not to mess with it and just get TVS instead. Thanks for the help anyway guys!

ItalianJoe1

iTrader: (10)

Thats one way to handle it

I would like to see a pic of the M62 to see what you're talking about, I believe it's core shift as mentioned above and would be fine after machining, just curious.

RedLined

I'll see if I can get a picture with some better lighting later.

northvibe

iTrader: (1)

I hope to hell you were modded up to support a pulley that small on the m62.... :S

RedLined

Dual pass, option b, phenolic, meth, 650cc injectors, gmpp mani, zzp 2.5 dp with 200 cell, sms big bore, k&n typhoon, stage 1 axles, gmpp clutch, fidanza lightweight flywheel, Powell rotated mount, blah blah blah

Builttss

My zzp 2.7 need grinded down a tad. Use a dremel

RedLined

Thanks

northvibe

iTrader: (1)

Holy sheet. I think you are the first person of 2015 that actually has done research and or the mods require to pulley below a gms2. Thank you and continue on your modding way. Tvs is nice as well, make big powa, I like the whine....almost thought of getting a lsj......

RedLined

Thanks, had the car for 10 years but started modding it last summer. She's been on 42s with a 3.0 pulley and I'm finally comfortable enough with hptuners to go bigger. Hopefully it's at least as loud as the my62 is now, I've heard it's not very loud with larger pulleys.

northvibe

iTrader: (1)

HA I never looked at your join date took 10 years for all the mods? Glad you are keeping the SC, there is nothing like that nasty whine!

Olybaltss

aren't you going to a much smaller pulley? 3.0 to 2.7 is a 10% drop in size...

northvibe

iTrader: (1)

lol that is what he probably meant

RedLined

I meant bigger in terms of mods and power.

riceburner

iTrader: (66)

just let the pulley grind itself on the m62 problem solved

RedLined

Wouldn't bolt on and even if it did it wouldn't be straight. Belt would slip off.

riceburner

iTrader: (66)

sorry, the signified that i was just kidding lol.

I saw u got a tvs though. thats a much better solution

RedLined

Yeah, but I honestly thought about doing it in a brief moment of desperate stupidity. I've had some issues with this car and my patience has been wearing thin. I'm sure the TVS is going to open up a whole new can of worms but hopefully the gains will make it worth it.