[DML] Re: EFI injector question

["Daniel F." <daniel@xxxxxxxxxxxxxx>]

Nick,

I was concerned about the exact same thing when I was building
my EFI system from scratch about year ago. I had nightmares that
after all my hard work the injectors would just spray into the K-Jet
injector tubes and just drip down without atomizing causing it to
run poorly.

I am very happy to say that I worried for nothing! Apparently if
you use injectors that are no more than 15-20 degree spray pattern,
you don't even need to machine down the injector mounting area at
all. Sorry! I used high impedance Bosch injectors that are for a
Buick 3.8 liter V6 (I believe they are 216's). Not only did the
engine fire up with no problems almost on the first crank (after it
had been sitting for two months while I was working on it), but I
have driven over 3000 miles with it, including a trip to CA with
some members of the AZ-D for a car show.

I love the EFI. I built a MegaSquirt computer. Not sure which
ECU you are running, but it is so great to be able to control
what is going on. The efficiency and smoothness compared to
the original K-Jetronic POS is incredible. At an event we had
here in AZ earlier this year, Rob Grady said that my engine was
almost as smooth as an even fire!!!!

Good luck,
Daniel
VIN 10920
Arizona DeLorean Club

~~~~~~~~~~
Nick wrote:

>Thanks for the responces. 
>
>In answer to Daves question, i just want to get the thing finished 
>and if the injector is only 3mm inside the injector tube will it 
>really make a difference ???? Or am i splitting hairs. I would have 
>to buy purpose injectors to achieve that 3mm reach. The injectors i 
>modified have a pencil type spray pattern anyway so hopefully that 
>will do the job. 
>I suppose if it was an issue nothing would have to be changed except 
>the injectors. The fuel rails would still remain the same.
>
>
>Martin -  Sounds like a great kit you are offering and as i have 
>just gone through all the custom work involved in modification, a 
>bolt on sounds like a great option for other people looking to do 
>this!
>
>FYI I have the ECU activating off a 3 x 120 deg crank triggered hall 
>sensor. I had a custom front pulley made for this and modified the 
>distrubutor so that i only get a single cam trigger.
>
>I have the ECU activating the Fans sequentially at different 
>temperatures through their own relays and also controlling the A/C 
>idle up.
>
>The ECU (haltech) i am using is fully programmable to adapt to odd 
>fire meaning i can also trigger the injectors at the correct times 
>etc..
>
>It was hard to believe the amount of wiring i cut out of the engine 
>bay by removing the K jetronic. 
>
>Thanks again , Nick
>  
>





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