Roush M90 2 49" Pulley Add 3 4lb Boost Press on Style for 08 10 427R 428R 429R | eBay


Will it fit our cars?

 

Not 100% sure, but it looks like it is for the m90 roots, not the m112 that Jag has.

 

More than likely not the right one.

Why not just get one from one of the established sellers?

Eurotoys,
Mina Gallery,
Powerhouse (UK)

 

Email Chris from Mina gallery and ask for a forum discount; I think you will find it to e quite affordable. My experience with eBay an car parts is not a positive one.

 

Doesn't Mina only offer a 1.5 (1.7) pulley?

 

Are you sure you want the 3lb pulley? It is quite the job grinding the blower snout to clear the smaller pulley; who is going to be doing the install?

 

I've got a local shop in mind. Planning on adding a super chiller to beat this FL heat.

 

These guys have a 3lb pulley too

Jaguar Supercharger Upgrade | Jaguar Supercharger

 

I'll just have to wait for the pound/dollar rate to get a bit more favorable.

 

Eaton M112 Qwickchange Pulley Kit

 

Speaking outloud, I have yet to see the benefits of a 3LB over a 1.7 lb, especially considering the level of effort with grinding the snout of a 3LB and what's required to keep it cool after a few WOT runs. A forum member did a good job documenting his power increase with a 1.7 lb pulley, I believe his name is goblue30 or something like that.

 

I have the Powerhouse 3lb pulley on my XJR, I thought long & hard about the pros/cons of all the pulley options, & decided to go the full hog.

It's up to you. The 1.5lb is certainly the cheapest option because of no grinding needed.

 

Thanks guys. Feedback is always valuable. FYI - this is not a race car. I am planning on enhancing the IC circuit with a chiller since the weather here is 80 or better 9 months a year.

Still working towards my goal of the ultimate STR sleeper.