questions on my gt500

whitegt500 · #1 (**permalink**) 06-18-09, 11:08 PM

how can u tell what size a metco pullie is? is there a # or sumthn in or around the pullie, car came with it already

OsirisGT · #2 (**permalink**) 06-19-09, 07:43 PM

There are 2. One is a 2.8 that is a 10lb pulley and the 2.6 that is a 12lb pulley. Check your psi gage at about 5k and full throttle and you should be able to make out which one it is. I'm guessing it's the 2.6. I would hope there is also the extra tensioner pulley on there with it.

whitegt500 · #3 (**permalink**) 06-19-09, 09:13 PM

alright man thanx ill have to see what it reads at that rpm range, it doesnt seem to have a aftermarket tensioner so ima make it my next step to put that on

OsirisGT · #4 (**permalink**) 06-20-09, 12:37 PM

They do also make a stock size one. I didn't even think about that. I have one sitting on my desk here. It has no part numbers on it. If there is no extra tensioner it's possible to have a stock one I guess.

OsirisGT · #5 (**permalink**) 06-20-09, 12:40 PM

Here is a picture of the 2.6 and the tensioner

whitegt500 · #6 (**permalink**) 06-26-09, 07:17 PM

Quote:

Originally Posted by OsirisGT

Here is a picture of the 2.6 and the tensioner

yea i need to put that tensioner on definately, what tensioner did u buy for yours? or do they all seem to work the same

OsirisGT · #7 (**permalink**) 06-26-09, 09:42 PM

I have the Metco one. It came in a package from JLT.

METCO AUXILIARY IDLE ASSEMBLY (2007-09 Shelby GT500) 2007 GT500 SHELBY AUXILIARY IDLE ASSEMBLY [MI-MSI-90] - $189.50 : JLT PERFORMANCE SHOP, Welcome to JLT performance

**Justin00V6Auto** · #8 (**permalink**) 06-30-09, 10:13 AM

Quote:

Originally Posted by whitegt500

how can u tell what size a metco pullie is? is there a # or sumthn in or around the pullie, car came with it already

I would measure the front of it and then take about .2" off as the aftermarket pulleys are measured by the peaks of the ribs.

I would not go by the boost guage as that is not terribly accurate.

My06Stang · #9 (**permalink**) 07-10-09, 09:24 PM

Quote:

Originally Posted by OsirisGT

They do also make a stock size one. I didn't even think about that. I have one sitting on my desk here. It has no part numbers on it. If there is no extra tensioner it's possible to have a stock one I guess.

Thats true someone may have put a stock size on to trade it in since they wouldnt want to press on the stock pullie as most times its trashed pulling it off.