[DeTomaso] powerjection

[Justin Greisberg]

FAST XFI is a ported, sequential fuel injection system i think (8 injectors, one in each intake port).  more complicated for sure.  the FAST EZ EFI and retrotek powerjection 1 and 3 (but not 2) are throttle body injection systems.  a little bit like a computer-controlled carburetor.  (I'm sure you know all of this already).  a ported fuel injection system like XFI requires the intake manifold to be set up to take the injectors, which is more work.  I don't think the XFI has any self-tuning capability, which means you probably need someone who is familiar with tuning EFI as well as a dyno to tune it on.    Because all modern sports cars use a system like this, many people feel this design is better than the older throttle body injectors.  However, i think both can work, the big difference is the tunability of the system, and of course the actual tuning. justin
 
> From: wdemelo at cogeco.ca
> To: justingreisberg at hotmail.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] powerjection
> Date: Wed, 23 Mar 2011 10:47:27 -0400
> 
> I have the FAST XFI system. The tech reps are good and there are various 
> forums with guys that will help. However, they could not tell me how to use 
> my Mallory distributor for their system. I almost went with Retroteck years 
> ago. Glad I didn't.
> Will
> 
> -----Original Message----- 
> From: Justin Greisberg
> Sent: Wednesday, March 23, 2011 6:29 AM
> To: detomaso at realbig.com
> Subject: [DeTomaso] powerjection
> 
> 
> with the original powerjection system, there was basically one v8 engine 
> program that everyone starts with. it ended up being way too rich for my 
> engine, which surprised me given what this modified cleveland should be 
> doing. they have updated the software, so I cant speak for the current 
> system. the system would just be better if either they had a number of 
> techs you could easily reach on the phone, or if there was an online forum. 
> It was advertised as plug and play, meaning you turn it on and drive it,
> but in my case, not even close. the biggest problem has been with cold 
> starting and idle. i wonder if FAST's EZ EFI is any different? justin
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