VEMS vs PowerFC

[dhracer]

The PFC seems to be what (everyone?) chooses but I was wondering if anyone here is running a VEMS ecu?

The VEMS unit seems to be a cracking bit of kit with more functions than the PFC at a similar price and then there\'s all the extras you can add to it but it\'d be nice to hear any firsthand experiences with them on a rotary.

Any opinions of why you chose one over the other?

[Fish]

You might also want to have a look at the new Motec for 2 rotor engines.

Fish

[dhracer]

I\'ve always assumed (possibly wrongly) that anything Motec was mega money (i.e. 000\'s not 00\'s) , any info on the Motec unit (It\'s the MLS you\'re referring to right?)

[BlitzBoy]

Never heard of VEMS who makes it?
I would either choose PowerFC or Motec for tuning a Rotary, as there is a lot of experiance and info in tuning both ECUs, plus if you have the required knowledge you can tune them via your own laptop and wideband

[dhracer]

http://www.vems.hu

http://www.phattransmissions.com/vems.html

A few people are starting to run them on SXOC and it looks v promising IMO so I was wondering if anyone had tried on a rotary yet

[Fish]

The new Motec is circa £800 plus some other bits.

Fish

[BlitzBoy]

http://www.vems.hu

http://www.phattransmissions.com/vems.html

A few people are starting to run them on SXOC and it looks v promising IMO so I was wondering if anyone had tried on a rotary yet

just had a quick read there is no support for the Rotary as our ignition setup is different to most cars, plus no indication on a loom for the RX7.
Plus looking at the price you might as well buy an Apexi

[dhracer]

Could you explain a bit more about the differences please :confused: Is it because of the second spark?

The price is the whole reason I\'m looking at it as a more advanced alternative to the Apexi :Thumbsup!

[Fish]

The rotary runs staged injectors, oil metering pump, split timing.

Fish

[dhracer]

shows how much I know about the rotary engine - I thought it was just a simple case of getting the twin spark working :o

Thanks for the info (is there anywhere I can read up about all this?  I can\'t find anything properly technical about the system only stuff that glosses over the basics of the workings of the engine itself and not all the associated ancillary parts in detail)

[TwistedHumour]

Could you explain a bit more about the differences please :confused: Is it because of the second spark?

The price is the whole reason I\'m looking at it as a more advanced alternative to the Apexi :Thumbsup!

I think your better off going for something proven like the motec.  There’s a lot more knowledge on it, and plenty of proven results.

[dhracer]

I think your better off going for something proven like the motec.  There’s a lot more knowledge on it, and plenty of proven results.

That\'s definitely what I\'m thinking now, I doubt the Motec is worth it though as I\'m not planning anything major powerwise?

[dhracer]

Well I\'ve started chatting with Rob who looks after VEMS in the UK and they can work with the rex :mmmm There are a few people in the states running them and one guy racing with VEMS, he\'s going to get more info off them for me.  They\'re working on a plug and play harness for the FD too so that might make things easier in the future.  It\'s all a while off before I\'ll need it so I can take my time to understand them before I decide either way

[TwistedHumour]

It\'s always interesting to see how new products perform

Good luck, and keep us informed on what you find out!

[dhracer]

I will keep the updates coming as I find out more :yes, hopefully this\'ll end up being a decent alternative to the PFC.  There\'s quite a lot of doc on the website that I\'m starting to read through, I just need to start reading up more about the FD management systems :spank