I am in the middle of finializing my dfi system choice and there is so many diff systems out there i have it narrowed down but would like to hear others opinions.
System will be used on my twin turbo motor
Cost is a factor but quality is top.
The choice is between the Motec M48 system and the Fast SEFI. I just dont know if i am going way to overkill on the ecu getting into the motec. I like the options and want to get a system that is top notch. I just see the mustang and nsca guys use the fast system but not sure about motec seems mostly used with the higher end euro stuff but still.

What would you choose or did and why? Do you like your choice? What factors did you put into your choice?

I do not want the new accel or the tec 3 (like the sounds of the tech 3 and almost had one but just isnt up to the task imo.

Motor will push over 1k hp, will not be street driven a whole lot but will be time to time to go get donuts.

 

I've used the Accel DFI and now use the FAST SEFI w/ Wide-Band O2 and Individual Cylinder Control. The FAST is so much better, especially with the Wide-Band O2, than the DFI stuff I've used, and it's alot more pwoerful than the Holley and Edelbrock stuff (although I know you're not considering them.

I looked at the Motec EFI as well, and although it cost more than the FAST SEFI, that wasn't my main reason. I just felt the FAST system was a safer bet because there seems to be much mroe support for it and market penetration. The machine shop I use was the first shop to use the Felpro/SpeedPro/FAST. When John Meaney designed it many years ago, Fast Times helped them develop it dyno test and tune with it. So they've always been involved with it and are very knowledgeable tuners. It's what they all use on their NMCA/NSCA and NMRA racing engines.

I suppose if I used a shop that was expereinced with the Motec, I may have chosen that instead. The Motec does have alot of nice features that the current version of FAST doesn't have, most noteably wastegate control, but the upcoming version of FAST will have that - or so I am told. The new version of FAST will also have additional user programable auxilary controllers like the Motec does, but I don't know when it comes out. The FAST is more than capable though, as I mentioned the FTM guys use it on their 2000hp turbo/supercharged/nitrous racing engines.

 

Thanks Monty for the reply.
appreciate the time..
I am starting to lean back to the FAST from talking to alot. Seems that the motec is almost too wizzie. I know people that are very capable with the motec system it just comes in that i have planned for fasttimes to build my next motor (only other choice is duttweiler) I am slowly assembling parts for my build and just wanting to run this setup before switching out.

Again thanks for your time and thoughts.

Steven

 

Steven,

I don't think you can go wrong with the FAST. I don't know what your timeframe is but I was told a new version of the FAST SEFI is in the works, but I get the impression it's still in the early development phase as I haven't heard any details related to a release date.

 

I know Duttweiler likes the Motec. The FAST has done everything I've wanted. The biggest thing with it that I like is that there's enough there to do the job well, but there isn't so much as to overwhelm you. It's user friendly.

 

The time frame right now is getting closer. We are planning in about a month to fire the car and start to get bugs worked out. (with everything new i am sure there will be a couple.)

The major hurdle I am going through is I am wanting to run Coil per cylinder setup which the FAST and the Motec offer. I really see alot of benefits from both setups. The one thing that i really like, about the fast is that i can sell this car to someone and pretty sure they will have a fast tuner relitively close to them. (not that i am thinking of selling the car right now)

Thanks again you guys for your input.

Steven

 

I am also interested in a Coil Per Cylinder distributorless ignition system, however my understanding of the FAST eDist is that it isn't coil per cylinder, although it does eliminate the distributor. I beleive on an 8-cylinder, you'd need 4 DIS coils. It's basically similar to the Turbo Buick DIS system. I don't know about Motec.

I've seen ads for a new Coil Per Cylinder from MSD, PN:7600 I beleive, but I don't think it's on the market yet. MSD has been advertising it since last Fall, but I've called Jeg's and Summit and they say the part doesn't exist yet. It lookd like a comptelte kit, distributor plug/cam postion sensor, coils, wires,and ignition boxes. I can't imagine what they want for it though - $1500+

 

The eDist uses LS-1 coils.

Dean at New England Dyno Tuning has worked it out on a late model LT1. That motor is supposed to be on a dyno now.

It looks like a great system once you get things worked out. I'd like to get rid of my DIS 4 for one of them, since the DIS doesn't work.

 

The dis 4 boxxes i would use 2 of them to push the power up a little more with the coils.
I have been dealing with a few people on using the ls1 coils and diff systems... Dean being one of them. Using cam sync and crank trigger..
The other is white racing... They have a system using a distributor sink.

The cpc system from msd is going to be approx 2k+ from talking to msd which i about laughed in his face at.. I added up everything and came nowhere close to 2k but still. Other thing is he said it was still over a year out from production.

Steven