Megasquirt Info

[Cody Forbes]

jesper moreau wrote:
> For all of you gurus -o- megasquirt and all things EFI... I have to
> tell you, I can't think of anything else. Sitting.... blank stare...
> EFI... mmmmm
>
> SO, I am sure that I want the experience in fabricating my system, so
> I think MS is the way I'm gonna go. (Javad, you totally have my
> respect). I've read codys site throughly... enjoyed it throughly...
> and have a few parts questions.
>
> 1. where might be the best place to find injectors? Cody used bosch
> low impedance 42 lb/hr injectors. How much are injectors like these
> new. Do any of you try to source these from cars in salvage. what are
> the best places to find these?
>

Actually my 42lb/hr injectors are high impedance, which is much easier to 
make run properly (on low impedance you have to either make resistor packs 
or tune PWM settings - both not very hard, but more work).

Racetronix.com (thanks Jim for pointing them out!) is where I would suggest 
buying injectors. I'm about to place an order for some larger ones once I 
can come up with the money ;-).

> 2. do the injector pigtails come with the injectors or is that a
> new/salvage item?

I salvage them. The very best car to get them from that I have found is 
anything with a Chevvy LT1 engine ('90-96 Camaro, Firebird, Caprise police 
edition, Impalla SS, some others) because the pigtails have very nice 
cylinder numbers stamped into them and even painted in the stamping. 
Painless Wiring makes new harnesses for these cars (and many others) that we 
use in our V8 944 conversions and they use the same pigtails. I think if you 
called them you might be able to convince them to sell a set, but I haven't 
tried yet.

>
> 3. has anyone ever scanned in bracket patterns they used to hold many
> of the fab. items in?

Like what? Really the only fab work is the rail (which you could also buy 
anyway), and the brackets needed are simple to make, just to straight to the 
valve cover studs in two locations. For the new air intake use the stock 
pipe that would go to the CIS airflow meter boot, but just stick a K&N 
filter on the end of it and tilt it away from the turbo. If you're feeling 
creative you could even make an aluminium heat shield... use the same 
mounting screws that Audi did on the stock engine mount heat shield.