Looking for an EFI system for a V8 engine.

Evert Rosseel Evert.Rosseel at rug.ac.be
Thu Jan 9 09:55:50 GMT 1997


I just noticed I forgot to mention in my original post that the 
gas injectors are already available.
We only need a system to control them.

Also, can someone post the fax number of the firm that makes the MOTEC 
system, or a dealer in Europe ?

Evert

> Hi !
> 
> We are currently looking for an EFI system for a V8 engine.
> The engine is a Chevy big block, converted for operation on natural 
> gas and/or hydrogen and currently works with a gas carburettor on an 
> engine test stand (fully equipped with instrumentation).
> 
> The EFI system should have the following specifications :
> - is to be used for timed, multipoint port injection
> - fully sequential injection : each cylinder must have a seperate 
> injection period, at the same location in the cycle (for example : 
> during the inlet stroke).(This is necessary with hydrogen because of 
> problems with preignition and backfire and also because up to 20% of 
> the air is displaced by the hydrogen what would lead to differences 
> in power between cylinders if the injection is not fully sequential)
> - the injectors need to be driven at 24V (although it may be possible 
> to take a 12V signal and convert it to 24V)
> - operation without lambda sensor (we specifically don't want to run 
> at the same richness all the time and any EFI system that works 
> in a closed loop would make this impossible without complicating the 
> system)
> - preferably programmable via PC, if possible even during running 
> (for our experiments it would be very awkward to have to stop the 
> engine every time we want to change a parameter)
> 
> We need a system that is capable of starting the engine reliably and 
> running it at all speeds and at all throttle settings. Once this is 
> possible fine tuning of the equivalence ratio can be done 
> by changing the gas supply pressure for instance.
> We assume the biggest problem will be to get the engine idling.
> 
> Can anybody point me out where I can find such a system ?
> 
> Thanks in advance,
> 
> Dr. ir. Evert Rosseel



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