Yup that's the head studs I am using. Maps dog point head studs.

As for my tuner, I am using a very reputable tuner. I will ask him how much timing I have on my race gas map?

Thanks guys for all your help. I guess only time will tell. I am so tired of fixing all my little issues at this point. I guess that's what I get when trying to build a race car by myself. Lol

 

start off with the small easy fix's.... why assume you have a lifted head when you said so yourself that you have a cap that has over 80K miles of abuse?

also you told me that you were told a while back that your cap wasnt holding pressure this should have been replaced a while ago with a stock or aftermarket one. I put my money on this simple over looked part.

btw he does more roll racing then drag racing (no track here)

 

He is running a long rod 2.0. It's either a tuning issue, or a gasket/surface problem. H11 and L19 are both the same style of head stud, bulkier and made out of tool steel.

 

a radiator cap leaking out coolant just means its doing its job.. its supposed to open when you pass the certain pressure its rated for.. thats no problem..

now if it sticks closed then thats another story.. that can cause a lot of issues.

now the question is this.. why is it pushing coolant past the cap? head lifting is caused by tune ussually whether its to much boost or what.. but somethings causing the head to lift and pressurize the coolant system and push the coolant.

 

ya except the h11 has the dog point which is what ill be swapping my l19's out for when the time comes.. plus Chris's price on them is badass.

 

That is correct.

 

I have the same coolant loss problem. Losing it from overflow jug, did a compression test and had about 160 on all cylinders. Still havent solved the problem

 

I bought a new radiator cap, and it seemed to fix the problem for now.

 

the overflow bottle, or expansion tank, is designed to compensate for expansion of coolant when it heats up. Therefore, you should not necessarily be alarmed if the coolant level rises in the expansion tank. Mine typically rises ~3/4" when warm and when it cools down it returns to normal.

 

Mine didn't rise 3/4. Mine filled up to the top after 2 pulls. I put a new radiator cap and now it works fine

 

I have a similar issue, just ordered a cap. Hope that fixes it, as it did for you.

Although it is not as much after pulls, mostly just after long trips...

 

Let us know if it fixes your problem?

 

If it is a closed loop system, how could atmospheric pressure air be introduced into a pressurized liquid loop. I'm a process operator and this kind of stuff is what I see day to day. Think about it. You have a liquid in a closed loop being overpressured by another source of energy......

1) the glycol expansion theory could hold up only if you were to do the same test vs. distilled water and see if the level of distilled water doesn't rise.
2)radiator fluid is a ethylyne glycol/water mixture. it expands to some degree but not as much people think when its under pressure.

 

I don't know what to tell you. I am not a process operator, but it worked for me. I am not an expert on this subject but wouldn't the water pump have anything to do with the movement of the coolant? I mean the harder and faster I push the car, doesn't the water pump increase in speed also? Wouldn't that create some pressure?

 

i had the same issue, i cheacked my TQ on the head bolts. turns out i was overfilling the overflow bottle. stop adding coolent in the overflow no over heating problems. try it stop filling it up n just check ur rad levels