-Team
09.04.2005, 09:03
Tell me. Which pulley is right for MTH software? 15, 17 or 19%
The 15% reduced pulley is the standard for MTH software. If you mount a smaller one (17% or even 19%) then the mixture will become too lean you could get thermical problems with the piston. Maybe MTH offers a special software for these smaller pulleys, but please consider that
- you would need a smaller belt - with the 15% reduced pulley you may use the original belt
- the stableness of the machine would be reduced
- the supercharger could exceed the maximum revolution speed.
Are they any problems with MTH?
As far I know there are no problems with MTH. Many members of this forum already MTH-tuned their minis and there are no complaints.
How to change pulley?
There are different ways to change the pulley. You either lift the engine to reach the pulley or you dismount the complete front of the mini. I think to lift the engine is the easiest way, but you need to do that very carefully. In order to remove the pulley you need a special tool. Otherwise it is almost impossible to get it off the shaft. Here are nice instructions how to replace the pulley lifting the engine: http://www.promini.com/technical/install...ctions.pdf
Does anybody do that at home?
We did it in a private workshop.
It is possible to go something wrong with that pulley and software? Engine blow up or something?
If you lift the engine without damaging cables or sockets, remove the pulley without damaging the supercharger, mount the proper pulley, upload the proper software then there is no problem. Personally I would prefer a two-piece, self centering pulley, because it is much easier to install and it is almost impossible to make a mistake.
Does MTH remap just engine software or change DSC and ASC too?
MTH will change the behaviour of ASC. It is much better afterwards, because less reactive. I think, the MTH software leaves a minimum tourque on the wheels, but it is the best, if you ask MTH about the details.
I can't decide which tuning it's better, safety and for less money.
That is actually your turn
The 15% reduced pulley is the standard for MTH software. If you mount a smaller one (17% or even 19%) then the mixture will become too lean you could get thermical problems with the piston. Maybe MTH offers a special software for these smaller pulleys, but please consider that
- you would need a smaller belt - with the 15% reduced pulley you may use the original belt
- the stableness of the machine would be reduced
- the supercharger could exceed the maximum revolution speed.
Are they any problems with MTH?
As far I know there are no problems with MTH. Many members of this forum already MTH-tuned their minis and there are no complaints.
How to change pulley?
There are different ways to change the pulley. You either lift the engine to reach the pulley or you dismount the complete front of the mini. I think to lift the engine is the easiest way, but you need to do that very carefully. In order to remove the pulley you need a special tool. Otherwise it is almost impossible to get it off the shaft. Here are nice instructions how to replace the pulley lifting the engine: http://www.promini.com/technical/install...ctions.pdf
Does anybody do that at home?
We did it in a private workshop.
It is possible to go something wrong with that pulley and software? Engine blow up or something?
If you lift the engine without damaging cables or sockets, remove the pulley without damaging the supercharger, mount the proper pulley, upload the proper software then there is no problem. Personally I would prefer a two-piece, self centering pulley, because it is much easier to install and it is almost impossible to make a mistake.
Does MTH remap just engine software or change DSC and ASC too?
MTH will change the behaviour of ASC. It is much better afterwards, because less reactive. I think, the MTH software leaves a minimum tourque on the wheels, but it is the best, if you ask MTH about the details.
I can't decide which tuning it's better, safety and for less money.
That is actually your turn
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