The place to "speak geek"
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craignicol
- Posts: 106
- Joined: Thu Jul 09, 2009 12:42 am
- Location: Aberdeen
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by craignicol » Tue Apr 06, 2010 3:19 pm
Not sure if anyone can shed any light on the below questions. A friend of mine has to know everything about everything but it did get me thinking to:
What info could you provide about the supercharger fitted to the Exiges? Do you know the make / model / layout etc? Just out of interest really as I’m trying to get my head around the whole issue of sizing a charger and selecting the correct pulley size.
Do the Lotus tuning folk fit smaller pulleys to up the boost? What sort of boost figures do you get?

BMW 123d (Monday to Thursday)
S2 Exige S (Sold)
Porsche 911 C4S (Friday to Sunday)
Caterham 7 JPE (A few minutes everyother weekend)
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roadboy
- Posts: 1599
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- Location: Newcastle Upon Tyne
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by roadboy » Tue Apr 06, 2010 3:23 pm
The Charger is an Eaton MP62. I think the standard pulley size on the Exige S is 3.4" but I may be wrong.
The MP62 is available in many different configurations dependant on bypass valve positioning, nose length, etc.
HTH
Dan
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craignicol
- Posts: 106
- Joined: Thu Jul 09, 2009 12:42 am
- Location: Aberdeen
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by craignicol » Fri Apr 09, 2010 11:09 am
Thanks for the info Dan,
After a little more digging it would appear that a bigger charger would be a rather straight forward modification.
(Need to put these ideas straight out of my head!)
BMW 123d (Monday to Thursday)
S2 Exige S (Sold)
Porsche 911 C4S (Friday to Sunday)
Caterham 7 JPE (A few minutes everyother weekend)
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roadboy
- Posts: 1599
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- Location: Newcastle Upon Tyne
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Contact:
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by roadboy » Fri Apr 09, 2010 12:49 pm
No benefit from a bigger charger really.
The MP62 will give more than enough boost. Chargecooling and a smaller pulley is the way forward on an Exige S.
Dan
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Nig The Stig
- Posts: 292
- Joined: Wed Sep 23, 2009 5:23 pm
- Location: Ayr, South Ayrshire
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by Nig The Stig » Fri Apr 09, 2010 10:20 pm
Do you do upgrades to get 2008 Exige S to circa 300 bhp?
How much?
Cheers.
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craignicol
- Posts: 106
- Joined: Thu Jul 09, 2009 12:42 am
- Location: Aberdeen
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by craignicol » Sat Apr 10, 2010 5:03 pm
I would still be keen to get this 260 upgrade that people were speaking about.
Anyone got anymore feed back on that yet?
BMW 123d (Monday to Thursday)
S2 Exige S (Sold)
Porsche 911 C4S (Friday to Sunday)
Caterham 7 JPE (A few minutes everyother weekend)
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Nig The Stig
- Posts: 292
- Joined: Wed Sep 23, 2009 5:23 pm
- Location: Ayr, South Ayrshire
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by Nig The Stig » Sat Apr 10, 2010 10:57 pm
Nope, the garage hasn't got back to me yet.