Richard82 - Something like a pully does increase wear on an angine. Modern cars are build for reliability, well for the first 3 years while the warrantee exists anyhow
The mods we do can reduce longevity, can increse emissions and can increase fuel use. BMW want to avoid these things for number of reasons most are due to EU regs on factory cars, producing a mass appeal car (not everyone wants a mega loud sports manifold blaring through the cabin
) and making cost savings on warrantee work. However the other reason BMW don't do them on the standard car is because if they did where would they go with the
JCW or GP?! If you look at it like this...
JCW or GP has a 14.5%ish pulley reduction, increased intercooler, supercharger, airbox and map then so can any S. My philosophy is that if its OK on the
JCW, a similar and well made part will be ok on my S.
Futureal33 - EssentialMINI.co.uk are an MTH supplier, or used to be and are UK based and centrally located somewhere in the Midlands. They can do the work or supply you with the kit to do it at home with your laptop/computer.
GTT often leave your stock map on the car. GTTs car runs about 260-270 and still has a stock ECU/Map. If your cars map is not right they will reflash a new stock map or, and I think this is true, fit an MTH one to improve things for you (They only charge you for it if its nessesary and your map was not going to be up to the job). Lohen do 2 bluefins. One is a standard bluefin (adds 8hp to an S) the other is a special one designed for use with thier packages (It take into account the 15% reduction pulley and some of the other stuff like manifolds and airboxes that they do) and so supplies a bigger power improvement over just the parts or a normal bluefin remap.
GTT are excellent, especially if you have not had to have your car remapped. They use thier own pulley (which has been praised no-end on MINI2 and other sites). I believe which I think is a 17% reduction. Lohen fit a 15% Alta pulley (The Alta is a tried and tested and very popular choice, I even know a MINI tech who has used it as an alternative to a
JCW one on his own car).
Lohen kit - £675 inc VAT and fitted = 210BHP
Package includes:
- Superchips Bluefin with custom Lohen map
- Alta 15% Reduced supercharger pulley (
JCW is 14.5% ish)
- Reduced supercharger belt
- Pipercross Air filter
- Denso Iridium spark plugs
GTT kit - £675 fitted but need to add VAT = 210BHP
Package includes:
- Ecu reset (Not new aftermarket map)
- Optimised bypass valve
- Iridium sparkplugs
- GTT supercharger pulley (17% I think)
- Shorter 'stickier' drive belt
- GTT twin bearing idler pulley
- Performance panel filter
Your call..but its a difficult one. At the end of the day cost and distance to travel for fitting might make your mind up ...Lohens is simple enough to fit at home from what I hear, not sure on the GTT one.
rather than charge automatically for something that is either not required or will make no gains. The 'choice' of having the remap later (should anyone require it or want it anyway) is always there for every customer at any point in the future.There is a heck of a lot of nonsense regarding re-mapping .Theres no point in just bunging a 'one size fits all' map in and sending the customer on his way. Also dont confuse the gains you get from a 'remap only' on an MCS with those from a remap on a pullied car. We can stock Bluefin too (the reps been down) and we can have a 'special exclusive GTT' one too if we want.-We choose not to.We can get more gains by recalibrating the Bypass Valve (by all accounts safer too) - Included in every level of GTT conversion. If competitors 'can' get the same power with 15% pulley than we get with 17% SC pulley then the only other way is lots of ( IMO dangerous) additional ignition advance at high rpm and running higher maximum rpm. A 17% pulley also gives more (useable) mid range grunt & torque than using a 15% pulley.
. 
Toothcomb. 
