I wouldn't touch a non 4/5 valve per cylinder engine with a barge pole with one exception. That exception is not the dirty old gutless pinto.johnd wrote:I bet you think the ford pinto engine is a good engine . name me a good engine from that era
FE-DOHC, RB20DE(T), RB25DE(T), RB26DETT, 1UZFE, 1GZFE, 3SG(T)E, 4G63, VG30DET, B16A, B18C, 4AGE, M50, BPT/BPD/BP-ZE, VH40, VH45, etc etc.
All from within that era. All cast iron blocked. All built like brick shit houses :-)
I don't know about you John, but I'd prefer to not have to change the rods out to push 12psi in. That's a major job. The rods were fine, but built to provide that 200hp, and not 300, and if you try, they will fatigue and fail.the reason why you need to do major work to get better than std is because std is so good.
This proves that you haven't grasped the concepts involved here yet. Given that a particular user has 10 sensors he can probably use most of them, however a user that has only 6 will be stuffed if the code RELIES on having 10. If it relies on 6 and can make use of 10, it is a much better situation for everyone. The guy with 10 gets maximum benefit, as does the guy with 6. Both are happy. You would have it such that only the guy with 10 was happy, however he would be absolutely no happier than he would be if the guy with 6 was also happy. Do you see my point?certainly not with the minimilsitic approach to sensors to are trying to do.
This is the default, many OEM ecus leave a LOT to be desired. It is not hard to extract better drivability and economy and emissions etc from them if you so choose. MegaSquirt is a solid enough system to do that easily. It isn't really suited to 200 - 500hp / litre engines though due to its batch injection. Below that they are fine for what they are.when you get it to run as well and economical as std ecu --then you know you have got to grips with thing and have an ecu system that works .
True, how though? By lightening components and cutting margins of safety present in older less efficient engines. This directly correlates to an engines ability to handle power. Modern ones can't handle power (ah la forced induction) because they are built lightly to be efficient. They are great stock, and poor for boost in most cases without expensive things like rods etc etc.car makers are getting more power now from std engines and doing it with more economy --that is by anyones judgement a good measure of effiency--
This is true when they are making OEM power levels, yes.I am old enough to remember when engines only lasted 40-80k-now modern engines just don,t wear out if kept serviced correctly .
That's a shame. Obviously you have some experience using ECU's, however equally obviously you aren't familiar with what goes on inside them. I sincerely hope you stop back and read this as I'm sure there is a lot we can both learn from each other. I've tried my best over multiple posts to explain how it is, and Jean has also stepped in on the 6 sensor thread and explained how not requiring an wideband doesn't mean that you will get any less benefit from one when you do choose to use one etc. We are not living in the dark ages, we are being practical and pragmatic. There is a lot of variety in engine hardware and supporting all of it cleanly is quite a challenge. One that most companies like GEMS do not even attempt. They only support common stuff as listed on their site. DIY is different to that and the range of installations will be large at some stage in the future. We are doing our best to plan for that.I think this is where i stop posting cos you are still living in the dark ages --
Fred.