Projected horsepower
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From: Louisiana
You need to log the truck when driving. Get the front end in the air and put an Lisle radiator overflow on it and let it idle for awhile with the heat on and try to burp the system. Get an IR gun on the header primaries if you can and make sure it's firing on all 8. Many simple things and you may have a tune issue or multiple things going on.
nvm I see what it is, I'm going buy one now
Last edited by Tommy42088; Nov 5, 2023 at 03:06 PM.
You just have to work on being able to troubleshoot. Sometimes you just want it to be done and work. I chased my tail for weeks on my truck with multiple screwed up MAF sensors and was ready to throw in the towel. Sometimes stepping away for a couple days gives you sole clarity to go back after something.
Thread Starter
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From: Louisiana
You just have to work on being able to troubleshoot. Sometimes you just want it to be done and work. I chased my tail for weeks on my truck with multiple screwed up MAF sensors and was ready to throw in the towel. Sometimes stepping away for a couple days gives you sole clarity to go back after something.
yeh man I understand, its just frustrating when ive invested alot of time and money in this truck and i just want to see it running right. I have a tune appointment next weekend ao thats why im trying to resolve this overheat issue. Im hoping he can see something in the tune that i cant see if i cant get the hesitation to stop
First 10 times I drove my '67 I was always fixing something the next day.
So overheating, that can be a few things. You can make sure you got all the air out of the system. I've had luck jacking up the front of the vehicle making the rad cap the highest point. Used a universal fill/cap deal with it's funnel, put in about 2 points, could immediately see air bubbles. Not sure how much I put in there, but after 24 hours I got all the air out.
The second issue is tune. I'll defer to the tuners like Andrew but generally we end up running more idle and cruise timing than an NA combo.
So overheating, that can be a few things. You can make sure you got all the air out of the system. I've had luck jacking up the front of the vehicle making the rad cap the highest point. Used a universal fill/cap deal with it's funnel, put in about 2 points, could immediately see air bubbles. Not sure how much I put in there, but after 24 hours I got all the air out.
The second issue is tune. I'll defer to the tuners like Andrew but generally we end up running more idle and cruise timing than an NA combo.
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From: Louisiana
you'll get there. The first day you take it out and are making WOT boosted pulls with no issues you'll forget all about the issues. It's natural to be frustrated when it seems like one thing after another. Work on thr cooling. Run the truck at night when it's dark out and see if you see any arcing under the hood. Use the IR gun and make sure you're running on all 8. Then see what the tuner can do.
Ive tried this over n over, it just steams and blow the water like this and then begins to over heat again
This one seems to fluctuate so maybe im on to something
Thread Starter
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Joined: Oct 2022
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From: Louisiana
First 10 times I drove my '67 I was always fixing something the next day.
So overheating, that can be a few things. You can make sure you got all the air out of the system. I've had luck jacking up the front of the vehicle making the rad cap the highest point. Used a universal fill/cap deal with it's funnel, put in about 2 points, could immediately see air bubbles. Not sure how much I put in there, but after 24 hours I got all the air out.
The second issue is tune. I'll defer to the tuners like Andrew but generally we end up running more idle and cruise timing than an NA combo.
So overheating, that can be a few things. You can make sure you got all the air out of the system. I've had luck jacking up the front of the vehicle making the rad cap the highest point. Used a universal fill/cap deal with it's funnel, put in about 2 points, could immediately see air bubbles. Not sure how much I put in there, but after 24 hours I got all the air out.
The second issue is tune. I'll defer to the tuners like Andrew but generally we end up running more idle and cruise timing than an NA combo.
What do you mean the cooling system just steams? You keep adding water. As the temperature increases it'll push the water level higher and will burp air bubbles. Then you let it fully cool down and it'll suck the coolant back down. If you're getting stead out of that funnel either you're not keeping enough coolant in it or you've got a major combustion leak into the cooling system.
On the IR gun, those things can be tempermental. Make sure youre exactly rhe same spot on the primary and even then youll see temp swings because of header designs. As long as youre seeijg a few hundred degrees on all 8 theyre all firing.
On the IR gun, those things can be tempermental. Make sure youre exactly rhe same spot on the primary and even then youll see temp swings because of header designs. As long as youre seeijg a few hundred degrees on all 8 theyre all firing.
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From: Louisiana
What do you mean the cooling system just steams? You keep adding water. As the temperature increases it'll push the water level higher and will burp air bubbles. Then you let it fully cool down and it'll suck the coolant back down. If you're getting stead out of that funnel either you're not keeping enough coolant in it or you've got a major combustion leak into the cooling system.
On the IR gun, those things can be tempermental. Make sure youre exactly rhe same spot on the primary and even then youll see temp swings because of header designs. As long as youre seeijg a few hundred degrees on all 8 theyre all firing.
On the IR gun, those things can be tempermental. Make sure youre exactly rhe same spot on the primary and even then youll see temp swings because of header designs. As long as youre seeijg a few hundred degrees on all 8 theyre all firing.
could it be my radiator? Everything is new but that, the water does get dirty pretty quickly inside so Maybe its stopped up?
Last edited by Tommy42088; Nov 5, 2023 at 05:23 PM.
I can't put water in it when it's doing that, it just blows it straight back out. it doesnt seem to settle down and my over flow tank is filling with water because the water is going back into it. It's to much pressure.
could it be my radiator? Everything is new but that, the water does get dirty pretty quickly inside so Maybe its stopped up?
could it be my radiator? Everything is new but that, the water does get dirty pretty quickly inside so Maybe its stopped up?
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From: Louisiana
that's the point. It shouldn't be doing that. Do you have any white smoke out the back or have you pressure testes the cooling system? it sounds like a popped head gasket or a hose isnt hooked up right somewhere. When the radiator cap is off and you stick a full in there the overflow should be closed so it all stays in the funnel. Any chance you have a blocked radiator?
that sounds like the radiator isn't clogged. That's an odd one. I've never seen it just dump vapor like that.
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From: Louisiana
I know and I have bled it a few times since ive own it so i know what it takes but it's not working. I can hear it bubbling out the canister everytime i turn the truck off. Even like that i would of though if it had air that it would of worked itself out.
did you make any WOT pulls before it was tuned? Did the tuner get far enough into the tune that he was dialing in WOT and disnt just "load a safe tune".
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From: Louisiana
no, you can't make wot pulls, it hesitates to much. They giu yesterday just checked the injector data and tried to add a little fuel to see if it helped and nothing changed
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From: Louisiana
I hope your wrong too but if not I'm capable of changing them. I did it last time. Idk why they would be blown though. I just put new ones a few months ago from summit and i haven't let it run hot to the extreme of blowing the gaskets out