Lpg Mixer - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

Bass Crazy · 05-12-2002, 02:57

Hey Guys and Gals.

I have checked out quite a few mixer setups on everything from the EA-EL and the largest internal diameter I could get was about 3cm.
I personally think that this places a large restriction on the car, and im wondering if anyone else has managed to get around the problem.

Is there a reason why the mixers are so small?

I have recently spoken to Gas Research about getting a gas mixer with a larger diameter then the standard units, they have one and it's about 5.8cm in diameter, with a price tag of $100. Do you think it's worth it?

I have also considered making up a custom mixer. Would there be a problem with having a mixer almost the same diameter as the throttle body?

Thanks ppl.

EDXR8 · 05-12-2002, 04:39

Thats the problem I had, so I got rid of the LPG and went in search of more power. On the dyno, I was loosing between 10-25rwkw throughout the rev range.

Jesmol · 05-12-2002, 04:41

I have an Impco mixer, and lose only about 2~3kw, according to the dyno, they have a much more complex setup than the standard diffuser ring setup used by Parnell who make the Ford OE systems.

Bass Crazy · 05-12-2002, 05:28

Who deals with the Impco products In melb?

Jesmol · 05-12-2002, 05:51

Impco actually have the Au head office down at Morrabbin / Cheltenham (?) cant rmember the road, but should be in yellow pages..

xced · 05-13-2002, 02:26

hey ... :)
ive driven 3 gas falcons -
Ebs2 - the gas 'ring' in front of the throttle is exactly the same diameter, doesnt lose much power on gas
XD - dodgy small ring on top of single BBl carb - bout as much g force as a rideon mower :o
XD - holley / Imco setup - lost hardly any power at all on gas

Bass Crazy · 05-13-2002, 04:27

Sweet. I think I'm just going to go for an inline ring mixer with a large diameter, hopefully the same as the throttle body.
I am not too concerned with getting max performance out of LPG, however, I want maximum air flow for when the car is on ULP, which is when it has it's best performance.

I might have a go at making up a custom one, and if that doesn�t go well, I'll grab the GRA mixer.

Thanks PPL.

05-13-2002, 05:36

I agree, all of the mixers/carbs I have seen are too restrictive so....
Ive made my own LPG mixer for my EFI cleveland.

It is 70mm I.D. and works great. I lose only 7hp compared to petrol.
I am currently tooling up to produce an initial run of ten. I may make some of them at around 60-65mm I.D. for sixes and milder applications.
I'm using a dual outlet OMVL converter.

Interested Bass man?

Pete.

Spinksy · 05-13-2002, 05:48

I have the same problem with the restriction on my gas mixer. I was under the impression that the restriction was there to cause a pressure drop so that the gas flowed into the intake better??

From looking around I though the only option would be to go for a Gas Resarch Throttle Body.

I would be very interested if there was an alternative as it definitely has a very negative effect on performance...

EVIL EB · 05-14-2002, 06:26

i own an EA falcon multipoint on gas and it has an IMPCO mixer on it and the power difference between gas and petrol is hardly anything, unless you give it a really hard time then It cant be noticed and it runs smooth and without problems touchwood, the gas system is the age of the car (1989) and it still works fine after 280,000kms !