FB-EK Holden Car Clubs of Australia
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I have a similar setup with similar problems. I'm running an electric fuel pump in the boot, with no pressure problems, although i have heard of people hookin up a head tank with such setups before.wbtonner wrote:Hi Gaz and SammyV8EK4us wrote:It sounds like the fuel is vapourizing after you turn it off, this is not uncommon and considering that the exhaust headers is directly below the carbs I would say it is a 90% chance that this is the problem. You may need a heat sheild. Do you have an electric fuel pump at the tank?EKK001 wrote:Oh yeah..!
Strangely enough, I totally do remember that, coming down past Maccas and Carlovers there..
What you heard, was probably me trying to keep the revs up to prevent it from stalling...
Have been having a couple of issues:
Engine starts perfectly when cold, runs like an absolute dream... Engine warms up, still runs fine.. Drive it for 15-20 minutes, no problems...
Turn it off. Try and start it again, nothing. It will turn over and over but just wont fire... You have to wait like half an hour for things to cool back down again before you can start it....
So I have been super paranoid about it stalling mid-traffic hence the revving...
Paul's Dad here, Yes we have changed the ign module and coil and no change to symptoms. Yes there is spark when it wont start. Another symptom is that when the car sits at idle when the engine is really hot it starts to hesitate and stall, which also I think is fuel vaporisation.
A couple of things we have been told is to install a heat shield and another was to have install a small header tank for fuel higher than the carbs so that there is a head pressure of fuel sitting at the carbs.
Gaz, we still have the mech fuel pump, do you think (or know) if a electric fuel pump would help. I was actually thinking about a electric pump over the weekend. Trying everything we can to sort it, but trying not to spend money if we don't have to. Also, do you have a suggestion for what we could do for a heatshield, materials??? Any help is much appreciated.
Cheers Woody
I ran a similar set up in a LC GTR a long time ago, when fuel was cheapwbtonner wrote:Hi Gaz and SammyV8EK4us wrote:It sounds like the fuel is vapourizing after you turn it off, this is not uncommon and considering that the exhaust headers is directly below the carbs I would say it is a 90% chance that this is the problem. You may need a heat sheild. Do you have an electric fuel pump at the tank?EKK001 wrote:Oh yeah..!
Strangely enough, I totally do remember that, coming down past Maccas and Carlovers there..
What you heard, was probably me trying to keep the revs up to prevent it from stalling...
Have been having a couple of issues:
Engine starts perfectly when cold, runs like an absolute dream... Engine warms up, still runs fine.. Drive it for 15-20 minutes, no problems...
Turn it off. Try and start it again, nothing. It will turn over and over but just wont fire... You have to wait like half an hour for things to cool back down again before you can start it....
So I have been super paranoid about it stalling mid-traffic hence the revving...
Paul's Dad here, Yes we have changed the ign module and coil and no change to symptoms. Yes there is spark when it wont start. Another symptom is that when the car sits at idle when the engine is really hot it starts to hesitate and stall, which also I think is fuel vaporisation.
A couple of things we have been told is to install a heat shield and another was to have install a small header tank for fuel higher than the carbs so that there is a head pressure of fuel sitting at the carbs.
Gaz, we still have the mech fuel pump, do you think (or know) if a electric fuel pump would help. I was actually thinking about a electric pump over the weekend. Trying everything we can to sort it, but trying not to spend money if we don't have to. Also, do you have a suggestion for what we could do for a heatshield, materials??? Any help is much appreciated.
Cheers Woody
and it use to starve for fuel so I put in a mechanical pump from a blue motor which was a higher pressure and didn't have any problems anymore.Exactly why I suggested an electric pump at the tank.........Sammy wrote:mechanical pump is good for 6psi maybe but what rpm does the engine have to be doing for it to get to that psi ?
And so you should beEKK001 wrote:One very happy individual.
Thanks man, now get back to work cramming those 22's under your guards.... I cant wait to see them.kiid61 wrote:This car looks Sooooo awesome man, well done.