FI a Dauntless

Well - curiosity has gotten the better part of me, and my buddy Sheldon (Shrek and Commando) wants to fool with FI.

So I am starting to pull things together to make it work on the 225 I am running. Probably will not get it done till later in the summer, but am going to try to document it so others can follow along if they want.

I have PMed some of you guys with experience and have gotten some feedback - I would appriciate anything anyone else can think of and will put it in as well.

Starting parts list and a few questions can be found on my home page under the Winter 08 09 - ya - will probably have to rename the page

http://www.warloch.com/Winter 08 09.htm

 

Looking at the GM based TBI with MegaSquirt ECU. I will be focusing on Fuel Only at first and then we may move to spark with the 360 in the Commando.

 

Bolts to a square bore just like a Holley Carb. I did the checking into it and they said it will work even with the injectors that come in it. I have even seen a list of rev and run you can do before pulling out of the shop that gets the computer 80% tuned. This and a Holley Projection are on my 'play list' for the winter. I will keep folks updated - I posted related info on another thread here and will see about rounding it up.

I really like the idea of a single day to drive in carb on a carb and be running via FI that afternoon.

 

New player in the bolt on EFI that I was not aware of till today (thanks terrorent) and that is the EZ-EFI:
http://www.fuelairspark.com/ezefi/default.asp

After alot of reading it is very simular to the PowerJection III:
http://www.professional-products.com/EFI_3.php
but with seperate components... Which I like.

Going to have to think hard on this - now that I have a little more time with the TIG purchase.

 

Ryan - I saw the same thing in relation to how to hook up the tach signal. I have also read alot of posts on the Corvette forum from one of the designers and they had some real issues with electronic 'pulse' issues interfering with the ECU.

I will be talking to them on the phone to get a guarantee as to it's viability like I did from the Powerjection Folks before I get it.

 

I can not get to the web page terrorent, however, any pulse that can be accepted into the ECU to give rpm would be OK to use as long as you are not using it for spark control. RPM is RPM be it Odd fire or Even.
To me the question is 'can the ECU accept the RPM signal from the Odd Fire HEI ignition system' - and then - 'can the ECU accept the RPM signal from a standar Coil on the Odd Fire engine'. If it can tell a valid RPM from those signals it should work. This will depend on if it's more sensitive than a tach that seems to work fine.

There has been some debate that the HEI smooths out the RPM signal, I don't know for sure at this point (and I am not going to lick my finger and hold it on the wire to find out )

 

MSD Crank Trigger Universal - not sure if it fits our motors or not, but here it is - still.

 

Update on EZ-EFI - I talked to them this AM. The issue is not the irregular pulses from the HEI (or any unit) it's the 'quality' that the ECU needs to run the way it was designed. The tech stated that the FI system was really designed to run with thier, or and anothers, after market ignition module. He specifically mentioned MSD. So, I went to MSD's sight and did some reading, then called them. They have a Digital 6-Plus module that works with and Odd Fire motor (has the setting available on the box) - Summit Price $287.95.

I was not able to get back to FAST to confirm that the 6-Plus will work, but will and post it here.

 

I have found it as low as the $17XX range for the full kit (every thing you need). Atlantic Speed has it now for $1899 but will be looking for where I saw it cheaper. I know it was close to the Powerjection III prices.