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[cem_devecioglu]

a custom ecu can be used.. there are cheaper models.. however still you have to re-wire all new sensors from scratch and I think you -may- still have to keep original ecu.. seen a lot of cases like that


full real standalones are expensive 

Not too different to lpg then in installation terms

a bit similiar but requires more tuning mostly on dyno

You don't really need a dyno these days, to be honest. Fit a wideband lambda sensor and you can tune it on the road quite easily. My Westfield was converted from twin DCOEs to injection. DCOEs had had a couple of expensive rolling road sessions and much tinkering and still were never great. Fitted a Megasquirt and in an afternoon and about 30 miles on the road I went from no fuel map and a guessed ignition map to an engine that was running far better than it ever did on carbs. Much more flexible, a but more top-end power and a 50% increase in range for a tankfull of fuel.

OK, if you want to squeeze the last couple of horsepower out of it, then you need a dyno but, unless your corrections for baro pressure and temperature are absolutely spot on, you'll lose that edge as soon as the weather changes, so, IMHO, it's not worth chasing in the first place.

Something like a Megasquirt or Emerald will run a non-DBW V6 straight out of the box, probably with all the existing ancillaries.

Kevin, I have an AEM wideband ..  however I have trust issues to tuners

[Kevin Wood]

hmmm.. that sounds like a plan    however,  I hear some negative comments on megasquirt    and was looking at the AEM EMS series

You always will, because it's a kit of parts, so only as good as the guy who builds it. Too many people attempt to use it when they don't have the skills required, then present a loose collection of bits at their local rolling road, who wonder why they can't tune it properly.

I have done around 40,000 miles with one under the bonnet, and it hasn't missed a beat.

by the way, I dont trust those tuners here that they can tune the car better than the factory

If you're worried about that then you're stuck with factory power output. The reality is that nobody can tune a car "better" than the factory, because they will have the resources to put a load of engines in test cells for months on end and really refine it. Hiring a rolling road for the afternoon is no comparison.

Having said that, the factory have different aims when tuning their engines. If you don't care how well your map works in Saudi Arabia, or the Yukon, don't need to pass EU emissions testing, don't have to generate impressive CO₂ emissions figures for the fleet managers, don't have to warranty the engine for years, don't have to consider pikeys towing caravans over mountain passes.....  Actually, it's very easy to teach yourself engine mapping and surprisingly easy to get great results.

[cem_devecioglu]

hmmm.. that sounds like a plan    however,  I hear some negative comments on megasquirt    and was looking at the AEM EMS series

You always will, because it's a kit of parts, so only as good as the guy who builds it. Too many people attempt to use it when they don't have the skills required, then present a loose collection of bits at their local rolling road, who wonder why they can't tune it properly.

I have done around 40,000 miles with one under the bonnet, and it hasn't missed a beat.

by the way, I dont trust those tuners here that they can tune the car better than the factory

If you're worried about that then you're stuck with factory power output. The reality is that nobody can tune a car "better" than the factory, because they will have the resources to put a load of engines in test cells for months on end and really refine it. Hiring a rolling road for the afternoon is no comparison.

Having said that, the factory have different aims when tuning their engines. If you don't care how well your map works in Saudi Arabia, or the Yukon, don't need to pass EU emissions testing, don't have to generate impressive CO₂ emissions figures for the fleet managers, don't have to warranty the engine for years, don't have to consider pikeys towing caravans over mountain passes.....  Actually, it's very easy to teach yourself engine mapping and surprisingly easy to get great results.

thats good news.. will check for the documentation 


ps: power is currently around 180 hp and seems more than enough for a small car.. and to my surprise fuel is less than before as the pipes are long and I dont hammer frequently