4g61t.org

I am currently running 10.5 gallons of water to to 1.5-2 gallons of coolant.

I am driving the factory water pump directly off the crank. I had it this way on the car before adding the larger resevoir in the rear. It is at that time that the car started pushing coolant. I put a ton of miles on it with just the new small radiator. No problems. That is how I have narrowed it down to the new tank design. There is some kind of cavitation problem going on, and increases with rpm/water pump speed.

I am currently taking the car to 8500. I do not trust the stock valvetrain much more than that for too long a period.

The other day my coolant temps never got above 145*. And that is registered at the cylinder head/thermostat hosing. Which is generally 20-40* warmer than the water pump. So the block stays nice and cool.

I do not run a stock radiator. And have not for two years. I am now on a 7" tall aluminum setup. A full AN line system.

That thing you see in my pictures that is in the front of my car is actually my raidator. It is mounted out front to clear my new turbo. I run a water/air intercooler, so it sits above the transmission in the engine bay.

So, my radiator wsa actually 80% blocked from airflow. Even with the 12 gallon system, I was still having some issues once the tank got heat soaked. So the holes are out of neccessity.

All of this has been covered in detail along the way in this thread. This is my build thread.

Why would you run 90 pounds of fluids instead of doing an air to air. Second you did say in one of you earlier posts that you water pump was being driven 18% over correct? (That may be cavitation city right there as coolant gets airated and doesnt spend enough time in block and radiator to cool them down) Third, I dont think you have all the air outta the lines considered they are snaking all under the chassis like that. And last, I think you had posted the you were running a -12 fitting off the pump??? Way to small..Its only 3/4 "...You need to find a -20 or something in that range.http://www.gre6.com/ansize Screw quick change overs if ya cant keep the current set up cool. I did re-skim thru your posts, but I can see that you are having some issues up untill now. Im not bashing one bit and am the last person on here to have the right to do it, but just trying to get your mind going in a fresh direction. Step back and look...The answer is right before your eyes...You just dont see it yet.
BTW, that 145 coolant temp especially at the block is not good. Metal needs warmer temps to expand and seal then that. No wonder you pushing coolant at high rpm and low block temps.

This car has been running these coolant temps for two years. I did not have any issues until the tank went in. The -12 line is just fine. That is another reason for the large capacity. The math was redone correctly, the pump is not being over driven by much. 18% was incorrect math.

If you are willing to sponsor me, then I will change the car. If not, then it stays the way it is.

The oil temps and EGT's are at correct operating temperatures. So there is no cause for concern with the coolant temps.

I went with the water to air because it is more efficient and there was no way I was going to be able to run an intercooler with the radiator setup I had commited to. I could only do so much with the turbo and manifold that I chose to run. Everything in the car is because I was forced into doing so. Not because I thought it was cool. Everything is unique because I just had no choice in the matter.

Here are some pictures when the new head went on. It is a picture of the new Mitsubishi MLS headgasket and a picture of proof my my kick ass little 4G61.

Wow, that MLS looks like it works really well on the 4G61T. I think I might order one for mine!

Read back thru the posts, he had some coolant push...But this may be the best solution for us. But who really is over 25 psi daily? (torque 3 times to 100 pounds)Glad to see BIGLADY stay in there. Most fall off the map after 6 months and buy another DSm cause it safe and it matches their wifes Or they concentrate on doing nothing and critisizing others all the freakin time.

DICK

They call me Dick

Well, got the fuel pump rewired today. It gave me a good 25% at least more fuel to work with. So that is exciting. The car is making progress. It really responded to more fuel as well. With it running pig rich at 21psi, it said I was at only 70% duty cycles now. I think I can get it under 60% with the current boost level. I need to add we wired this different than any other rewire write up I have ever seen. Jason and I wired the pump/relay directly to the alternator. I am just guessing here, but I bet I gained anywhere from 2-3 volts MORE under throttle to the pump. It made a bigger difference than I could have ever imagined.

Before I can turn it up though, I need to put a new timing belt tensioner on the car. It is going out and I do not trust it to rev to 8500 all day at this point. So before the car comes out again, that needs to happen. Hopefully I can get a full time job soon, as my new part time is not enough, then I can get it done and get the vent system for the cooling system. Then we will be in business. This and a set of axles and I am ready for test in the quarter mile.

The cooling system does indeed pressurize. We removed the fill for the tank and it was a rather large burst of air that came out. And that was after just idling the car. I am sure 8500rpm of spinning the water pump really boils things up in there.

Steven

Steven, Keep going this way and your car will be a major dissapointed this year and you wanting to slit your wrists by mid spring..... BAD Bad.... This Car is a cluster Fu@# right now and will continue. Dont go down into the archives like this.

STICK WITH F"N WORKS

Rich

Btw, Dont mind the other members here, They really dont want you to suceed. Do what comes to you. Forget about your people that come to you to misguide you....Stay on track..........

WTF are you talking about. My car is no where near a cluster. It has a water to air setup and a large cooling system. How does that cluter it. I have two extra lines than normal in the car, and long cooling lines.

This car is being built to SCTA spec. I helped put a car over 200mph last year. And when the funding gets there, so will this car. What have you done?

If you were to see the car in person and take a ride, I would gladly show you what a disappointment it is.

I am sticking with what works, if that is what you meant. I am putting a car legally and safely over 200mph.

Yeah put the car legally and least productive among the rest that you are going against. fruit and banana scta.. And you know what..What I have I done. I have sit here and watch you waste your preciuos moments and cash to the other CO clan.

You are gonna be walked over.. Dont be worried about what I have done,,,,Worry about what your friends have done

I don't understand the words coming from your keyboard.

My car boogies. Plain and simple. And is more developed than any car on the board than say GSX's car. I am not here to toy around. The colorado guys take plenty of jabs at each other, but we are a tight group that generally gets along and looks out for each other. And we all help the best we can with one another.

I am still at a loss for where your posts are going. They are not written well and the message is not getting across.

I am already neck and neck with jaysmirage, and have put it on GVR4799. I am sure I could run with 240addiction from a roll at the moment, but that may have changed with his new "loose" converter. redline89 and crusher are not too far in the future from me. Please tell me what I have done to be walked on as you say. We all brought it big, that is all that matters. Everyones car is gonna kick ass this year and that is what counts. Some will be faster than others. Nothing I have done has made me top dog yet. I have to earn that title. And some of the boys stepped up and have their cars set up well to really challenge the others. I am still lost.

WTF is your problem, dude? Your arguments don't hold any water. Just because you have a reputation to uphold here doesn't mean you can bad mouth other peoples' hard work.

All right i will keep it clean but wtf this isn't middle school....Bosco me and steven rarely see eye to and that's ok its life but would i want to see him fail NO....Do i agree with half of what comes out of his mouth no but i bet he feels the same way alot of the time but would i help him at the track for sure i would that's just who i'am....I'm proud to be part of the csm group in colorado we do sh-- and do it big....Also steven is a big boy you don't need to comfort him...

Signed,

The man with the biggest f----- pimp hand....

Rich, a lil less of this before posting.