Pushrod kings MK1 Escort race car

[Pushrod King]

Re: Pushrod kings MK1 Escort race car

well done nick

having had similar missfire problems to yourself a few years ago which appeared to be as much tim erelated as anything i suspect your missfire might be a fuel pump which is sucking in air

Thanks G,that's something I hadn't thought of! I'm now wondering about pin holes in the outlet inside the tank So far it's had a new red top pump,filter king,coil and wiring with no change,the only thing that we have found is that the fuel inlets (banjos) on the carbs are restrictive as they're only 4mm internal diameter and the one other thought is that the pump's not mounted upright,(its on the boot floor)
Any more ideas welcome

[andypipe]

Re: Pushrod kings MK1 Escort race car

Well done nick. Im gonna have to raise my game a bit

[RS2KPETE]

Re: Pushrod kings MK1 Escort race car

Well done Nick good result & the car looks the nuts on the new rims,hope you find the misfire.

[Graham]

Re: Pushrod kings MK1 Escort race car

the pump's not mounted upright,(its on the boot floor)

i doubt thats your problem, i had 485bhp using a red top pump mounted horizonally on the boot floor

[mrjimbo]

Re: Pushrod kings MK1 Escort race car

Try fitting a swirl pot. You may be suffering fuel surge in the later stages of a race as the fuel moves to one side of the tank on corners and consequently sucks some air which won't show up until 100-200 yards further along the track as the air bubble will need to travel along the fuel lines to the carbs. When the air bubble reaches the carbs the float levels drop quickly causing the misfire but as soon as the fuel reaches the carbs the float level rises again and the misfire clears again giving the impression that the misfire is caused by something else such as low battery or ignition problem

[david_white]

Re: Pushrod kings MK1 Escort race car

Is the tank foam filled

[Pushrod King]

Re: Pushrod kings MK1 Escort race car

Yep it's foam filled so shouldn't allow surge (should it).

[Graham]

Re: Pushrod kings MK1 Escort race car

IMHO foam filled tanks are a waste of time, i found i still needed to fit a swirl pot even with a foam filled tank

[mrjimbo]

Re: Pushrod kings MK1 Escort race car

The foam in a "foam filled" tank is there for safety in the event of accident, it's suppossed to help prevent explosion should the tank become crushed or punctured and not there to stop fuel surge

[Pushrod King]

Re: Pushrod kings MK1 Escort race car

The foam in a "foam filled" tank is there for safety in the event of accident, it's suppossed to help prevent explosion should the tank become crushed or punctured and not there to stop fuel surge

Well you learn something new every dayI think mine's baffled too.(I am)

[Graham]

Re: Pushrod kings MK1 Escort race car

I think mine's baffled too.(I am)

so was mine but i still needed a swirl pot

[Pushrod King]

Re: Pushrod kings MK1 Escort race car

Looks like that's the plan then Just got to find one now.

Just looked at the long range forecast for next week-end and guess what they give for sunday.............................................................WINTRY SHOWERS!!!!! Deja vu?

[Pushrod King]

Re: Pushrod kings MK1 Escort race car

Is this what I need?
How do they work? Can I get my fabricator to make one?

[Graham]

Re: Pushrod kings MK1 Escort race car

no reason you cant make one i have in the past

you will also need a second fuel pump,

the very bottom pipe feeds your main fuel pump the one thats feeds your carbs

the pipe above would be the return from your engine bay if you have one,

the next pipe up is the feed from the tank via your new additional fuel pump,

finally the top pipe is a return to your tank

if your main tank doesnt have a return like most, use the breather as a return and drill and tap the filler cap to take a breather pipe

effectively what you now have is a small fuel tank to feed the engine topped up via the extra pump, most contain a litre or do of fuel which is enough to see you through the longest periods of fuel surge your ever encounter

[SnappyRacers]

Re: Pushrod kings MK1 Escort race car

Those new mods have transformed the can Nick. That was about the best I've seen you drive if I may be so bold... Good work chap.

You should get some of those photos. They're really good. He must be a professional.

Ahem.