Can anyone help with advice on a supercharger pulley upgrade

Can anyone help with advice on a supercharger pulley upgrade

Author
Discussion

acollin5

Original Poster:

39 posts

134 months

Sunday 15th May 2016
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Having bought a Jaguar 5.0 supercharged V8 I was looking for a recommendation for a garage who have experience on performing an upper pulley swap on the supercharger around the Edinburgh area. Willing to travel further if it means I know the garage is experienced in doing this sort of work. Recommendations please.

Also for those who have already carried out this upgrade I would welcome your thoughts/results.

Thanks!

fatboy b

9,492 posts

215 months

Tuesday 17th May 2016
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Might be worth asking over on www.jaginfo.org

There's a few on there who have done the upgrade.

P700DEE

1,107 posts

229 months

Wednesday 18th May 2016
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I thought the 5.0 had already got about as far as you can go with any pulley changes? What increase do you think you can get?

mr.man

511 posts

215 months

Thursday 19th May 2016
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The only thing you can do with a pulley is to change its size. Smaller makes the supercharger spin faster and vice versa.
Hardly an "upgrade" more like I think I know more than the original tuners.
Also involves messing about with belt sizes or changing driver pulley sizes.

jamesc69

132 posts

210 months

Thursday 19th May 2016
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The last thing my 5.0 XKR needs is more power. It already struggles to put it down on anything other than dry road.

deadslow

7,962 posts

222 months

Thursday 19th May 2016
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Speak to these guys http://www.powerhouse.uk/content/jaguar-performanc...

They are very friendly and will advise if your local dealer/indy can fit the parts.

acollin5

Original Poster:

39 posts

134 months

Sunday 22nd May 2016
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Thanks everyone! Bought the pulley from Powerhouse and in the interim since the post have now found an independent Jaguar garage who have experience in doing the work even on their own cars, including a 5.0 XK-R. It is only a 6% pulley so will give a small amount of boost increase across the rev range - 20bhp typically - but not pose any other fuelling or cooling issues that you might see with a smaller pulley. Ultimately it is for improved acceleration to use in instances few and far between as it boosts slightly lower and fairly evenly. Never found grip a problem (rwd) - if you are sensitive to it. In the wet - yes - you have have to be careful.

acollin5

Original Poster:

39 posts

134 months

Monday 8th August 2016
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What a positive buying experience - thumbs up for Powerhouse too - excellent after sales service. Car is wonderful, wonderful, wonderful.