Scud E55

Anyone know what size belt is needed for the ASP pulley? Who makes a good one?

rflow306

You have two readily available choices
#1 dayco 5080515 Gold Label belt
#2 Jaguar supercharger Belt -Jag part #NCC 7740 AD ( This one being my personal favorite)

Jrocket

Do you think #2 is manufactured by Gates?

Scud E55

Is it necessary to replace any other pulleys (e.g., water pump) when you install the ASP pulley, or does it fit okay without changing any of the other pulleys?

rflow306

The kit comes with a smaller water pump pulley that you must also install.

chiromikey

i thought you mentioned it a while back but i couldn't find the post...why do you prefer the jag belt?

rflow306

Chiro according to the data -logger the average boost is .5 lbs higher across the board. I have also noticed less belt residue when using this belt.

stevebez

Ordered the Jag belt now I get loads of residue with the Dayco... and also its ribs seem to be quite shallow relative to the OEM belt.

I assume the Dayco and the Jag are the same size? Is the Jag one also of the block type rib or is it continuous rib like the OEM belt?

rflow306

Steve they are the same size, with the Jag belt the ribs are continuous.

stevebez

Perfect...!

SleeperX

Is the Jaguar belt better than a Gates belt?

stevebez

My Jag belt arrived and I saw the makers name on it but its friggin lost in my fragile memory banks now ... mbe someone else knows..

!!! got it Roulunds...

rflow306

Yes Correct they are a division of continental tires.

SleeperX

Have you ever shredded one? Do you think it is stronger than a Gates belt?

rflow306

I have not used the gates belt. I have never shredded a belt either, it just slips less than the dayco in my case.

SleeperX

Thanks.

C230 Sport Coup

Where does one order this Jag belt?

chiromikey

local jag dealer for just over $100 or google "jaguar" + the part number and you should be able to find it for around $60.

TopGun32

do you guys think the supercharger belt slip is due to the type of belt?

should we feel less slip with the jaguar belt?

I have belt slip at least once a day from 1st to 2nd...

I punch the gas and the car jerks for a second and then full boost..

I have about 10k miles on my belt and I'm thinking a new belt will make help but not cure.

phatmitzu

I found a seller on eBay is selling for $70. Same part number

TopGun32

probably going to buy one and have my mechanic install during my next service.

Since I longer get free maintanance, I have my my local mechanic perform all my basic services and mods.

Jakpro1

I always wondered if that is actually slip or just the car going from about 300hp to near 500hp in milliseconds as the clutch engages.

I DO believe we have slip though. When I was going through my belt nightmare, I had on all kinds of belts. Never heard any of them slipping or had jerking, but when getting it up into higher r's there was a huge difference from the belts that just slipped on nicely, to the ones that I had to really work into place. Then I heard that was bad for the supercharger snout so I ditched that idea.

Loved the Gates, hated the dayco and never had a chance to buy the Jag belt. Regardless, I would change belts yearly minimum. It can make a huge diff sometimes.

stevebez

OK after much sweat I got the Jag belt on ... I dunno but mbe my ASP provided belt has stretched allot coz it deifnitely does not go on as easy.

Also I got Vic's S/C phenolics fitted which raise the S/C snout some 4mm I would guess so mbe this is where I lose the belt length. Had to grind down the end stops of the pulley tensioner to get it on.... which maybe was not the best idea ... anyhow its on!

TopGun32

let us know if you feel your compressor engagement to be smoother with the Jag belt?

I don't have the jerk problem all the time.. but its only once in a while when I don't really step on the pedal hard, I would feel a surge a power, followed by a jerk and power once more. Its all happens from 2k to 2.5k..

Its more noticeable when the car is warm or hot days.

TopGun32

I found these 2 belts?

anybody know what is the difference between AD or BA?


JAGUAR SUPERCHARGER BELT XK8 XJ8 NCC7740BA $67.95
Captain Jaguar's Cathouse
JAGUAR SUPERCHARGER BELT XJ8 98-99 NCC7740AD $70.95
Captain Jaguar's Cathouse