fiestaturbo.com

[BUTRE]

When you say the code is poor what are you talking about?

Only just got around to refreshing my memory about the MS code. A few of examples of where it's poor are;
i) Injector pulsewdith compensation vs battery voltage - The MS code treats this as linear which is wrong as injectors do not behave in this manner.
ii) Fast/slow idle rpm is switched according to a single coolant value, there's no interplolation between hot and cold to give a variable idle rpm according to temperature. There is also no idle adjust for ACT.
iii) Cranking flood clear is set at 0.3 mSecs, it's usual to set fuelling to 0 when flood clearing to speed up the clearing.
iv) There is no transient fueling adjustment for manifold filling/emptying.
v) There's no ratcheting of the closed TPS position to constantly find the lowest inputted value.

You could go on and find many more examples. My personal opinion about the MS is that it's cheap and cheerful but this is also it's weakness as it gives the impression to many that it's an easy way to get into DIY engine mapping. I suspect that there's many expensive engines out there being ruined by poor mapping and ignorance about the complexities of a modern engine control system.

I don't know anyone who has explained the worst issues on the MS. After this, it's needed to know if this issues will kill the engine. On the other hand, I also don't know anyone who has explained the worst issues on the cossie or FRST management.

I just know that no one has proven that a blown up engine was ecu's fault, being MS, cossie or FRST ecu's. I'm not talking about mapping here but about ecu beeing up to the job.

There are already many turbo engines using MS including 2.1 zetec turbo's. Until now no one complainted about MS ecu after using it.

When I ear a tunner saying: "go cossie ecu" or "go pectel" I always ask why. Getting an answer of: "because its better" it's not enough for me since it can be better for the tunner because it's the only thing he can map or it's just business and MS came and it's making customers go away...

[sailorbob]

I also don't know anyone who has explained the worst issues on the cossie or FRST management.

They too have flaws, e.g. the Cosworth needs a fairly expensive conversion to go distibutorless, neither are sequential injection.

When I ear a tunner saying: "go cossie ecu" or "go pectel" I always ask why. Getting an answer of: "because its better" it's not enough for me since it can be better for the tunner because it's the only thing he can map or it's just business and MS came and it's making customers go away...

It tends to be because the tuner specialises in one type so he can know it's quirks and be able to qucikly get a rough map done and then fine tune it.

[BUTRE]

I also don't know anyone who has explained the worst issues on the cossie or FRST management.

They too have flaws, e.g. the Cosworth needs a fairly expensive conversion to go distibutorless, neither are sequential injection.

Cosworths YB never should have been done with dizzy. Actually, any turbo engine!

For how much can you get a cossie ecu and convert it to dizzyless?

Seq injection is good in theory but they only show improvements (if any) at low load and low rpm, like when crusing. Also, you'll need a cam sensor which the cossie already has no?

For power the best is always batch-fire. Most aftermarket ecu's can swich from one inj type to the other depending the mapper's liking (rpm and load).

When I ear a tunner saying: "go cossie ecu" or "go pectel" I always ask why. Getting an answer of: "because its better" it's not enough for me since it can be better for the tunner because it's the only thing he can map or it's just business and MS came and it's making customers go away...

It tends to be because the tuner specialises in one type so he can know it's quirks and be able to qucikly get a rough map done and then fine tune it.

I thought so.

[sailorbob]

For how much can you get a cossie ecu and convert it to dizzyless?

P8's can go for £350, earlier ecu's less. See http://www.motorsport-developments.co.u ... h=36_37_32 for the various parts to go distributorless.

For power the best is always batch-fire. Most aftermarket ecu's can swich from one inj type to the other depending the mapper's liking (rpm and load).

Actually they tend to give about the same maximum power but batch firing can suffer from pressure fluctuations in the fuel rail.