Question re: new engine dyno EFI components setup
Thread Starter
Race Director
Joined: Nov 1999
Posts: 10,643
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From: Foxfield CO 1970 Convertible
Question re: new engine dyno EFI components setup
I'm getting ready to run my new engine at the builders dyno. I'll be running my new Holley Commander 950 and all of the corresponding electronics and fuel system components. I want to run as much of my equipment as possible (as opposed to using what is available at the shop) so that the dyno runs reflect the configuration of the equipment that will be installed in my car.
How do you folks do this? Do you mount all of your stuff on a board or some sort of chassis? Should it be wood, metal, or what? Any suggestions or warnings ahead of time? I'm talking about all of the C-950 equipment, fuel pump, regulator, WB O2 equipment, laptop computer, harnesses, etc. (Luckily, the ignition stuff goes right on the engine).
Thanks in advance...
How do you folks do this? Do you mount all of your stuff on a board or some sort of chassis? Should it be wood, metal, or what? Any suggestions or warnings ahead of time? I'm talking about all of the C-950 equipment, fuel pump, regulator, WB O2 equipment, laptop computer, harnesses, etc. (Luckily, the ignition stuff goes right on the engine).
Thanks in advance...
Burning Brakes
Joined: Nov 2001
Posts: 1,189
Likes: 2
From: Austin TX
Re: Question re: new engine dyno EFI components setup (Z-man)
I don't think most of us are having the engine dynoed separately, although
that's something I'd like to do. I'm running the Accel DFI Gen VII+ but
even so I've got the electronics and fuel components mounted in the
car to where they'd be hard to separate.
I think the best thing to do would be to consult your dyno shop and see
what they'd reccomend. The fuel pump and regulator might need to
be separate, for instance, to allow for hookups. They might even want
to use their own fuel pump, which is fine as long as it has adequate pressure
and flow. You'll be controlling the pressure with your regulator.
Anyway, have fun!
Dan
that's something I'd like to do. I'm running the Accel DFI Gen VII+ but
even so I've got the electronics and fuel components mounted in the
car to where they'd be hard to separate.
I think the best thing to do would be to consult your dyno shop and see
what they'd reccomend. The fuel pump and regulator might need to
be separate, for instance, to allow for hookups. They might even want
to use their own fuel pump, which is fine as long as it has adequate pressure
and flow. You'll be controlling the pressure with your regulator.
Anyway, have fun!
Dan
Thread Starter
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
Re: Question re: new engine dyno EFI components setup (danno85)
Thanks danno -
My engine is at the builder's shop which also has a dyno. I figured I'd get one chance at getting a few dyno runs in before I put the engine in the car and probably wouldn't go through the effort to take it out again. Someday I'll do one of those drive-through pulls and maybe get an actual figure on what my drive train losses are.
The builder thought mounting everything on a board was a good approach, but I was wondering if anyone here had gotcha's or additional suggestions. I'll use my own pump since I really want the readings to be with as much of my own equipment as possible.
My engine is at the builder's shop which also has a dyno. I figured I'd get one chance at getting a few dyno runs in before I put the engine in the car and probably wouldn't go through the effort to take it out again. Someday I'll do one of those drive-through pulls and maybe get an actual figure on what my drive train losses are.
The builder thought mounting everything on a board was a good approach, but I was wondering if anyone here had gotcha's or additional suggestions. I'll use my own pump since I really want the readings to be with as much of my own equipment as possible.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Re: Question re: new engine dyno EFI components setup (Z-man)
Do yourself a BIG favor and possibly do the first few dyno runs using a known carb-intake set-up. Get some base line fuel/spark numbers and THEN install the EFI set-up if the shop has never tuned up a simular combination to your motor. You will prevent the problems of rich fuel wash destroying your new rings and piston skirts or an idiot running your lean mixtured motor into Black Death. I use a piece of plywood to mount my stuff on and make sure everything is grounded toghether on the board and to the engine!
[Modified by Solid LT1, 12:53 PM 4/29/2004]
[Modified by Solid LT1, 12:53 PM 4/29/2004]
Thread Starter
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
Re: Question re: new engine dyno EFI components setup (Solid LT1)
That sounds like a good idea. How long do you suggest for the carb runs? (I've got my engine on a low-carb diet right now - :lol: )
