155 Degree Temps at end of Track

[nello]

Re: 155 Degree Temps at end of Track

I don't know if its already been mentioned but...

Using DISTILLED water and antifreeze with a 50/50 mix keeps my temps incredibly cool. Stays almost as cool as when I first fire up barely noticing any temp changes at all. Of course, as soon as my engine starts i turn the pump on so it doesn't get any heat soak either. So basically mines running until I shutdown the truck.

I also installed a new pump, hoses, and blasted the insides of the stock intercooler and waterbox to make sure they were flowing good.

What kind of temps are trucks with AIR to AIR seeing?

 

[WyoSyclone]

Re: 155 Degree Temps at end of Track

Pump hooked up and running backwards maybe?? Easy to do with a DC motor.

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

The pump is a Jabsco pump. I just keeped the hoses on the CAC and put buckets at each end of the hoses. I figured using just water was okay for this part of the job! I am just testing the pump! There are no kinks. It is a straight line to each bucket for the each hose.

I guess I could try to burp the hoses. Someone mentioned me to take the pump off the CAC and try it that way with a jumper wire? I am not good with wiring. How do I do that? Other suggestions?

 

[turbodig]

Re: 155 Degree Temps at end of Track

Everything being described sounds like air in the system.

Got a Johnson pump on there by chance? They're very intolerant of resriction in the system.

Get a chunk of 5/8" ID clear tubing, a 5/8" plastic barb nipple, and put the clear hose in line with the intercooler lines. (right by the intercooler)

It'll become very clear (pun intended) whether or not the coolant is flowing. Bet you've got a trickle running into the IC.

"Normal" temps at the end of the 1/4 are like 130-140. (Assuming a < 85 degree day)

 

[nello]

Re: 155 Degree Temps at end of Track

Definitly sounds like air is in the lines to me too. Run the pump and within a few seconds you should here the pump make a completly different sound from the normal humm. This is cavitation which then of course doesn't let any water flow at all. Because everytime you detach the lines from the box and reconnect them you've introduced air in the system.

Leave the cap off the water box, turn the pump on, when you see the water get sucked down from the water box fill up the remaining empty space. Once it begins to cavitate turn pump off, you'll see the water box bubble a little bit, repeat this process until no more cavitation is heard. Took me around 15 minutes to get all the air outta my lines using this system, but it works.

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

I have tomorrow off. I give everything a try. I do have a Jabsco pump not the Johnson. I can now understand why some to A2A.

Once its right, I hope I will be satisfied!

 

[WyoSyclone]

Re: 155 Degree Temps at end of Track

Don't get down about it J..... the a2w's are fine, they're just a little finicky at times. If you want to get to the bottom of it quickly just power the pump up with each fitting running into a hose going into a half-filled bucket.... one bucket should get more, one less. This will tell you if your pump is good. This will also tell you which wire is positive, which is negative, and which end of the pump is inlet and outlet. From there it's just a matter of carefully putting it back together. PM me if you need help... I'm going out tomorrow night, but will check the forum tomorrow during the day.

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

I didn't have the time yesterday. I will work on it tonight and tomorrow...stay tuned.

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

I found that I forgot to clamp one of the hoses. I seem to be creating my own problems. But once I clamped the hose. It drained a 2 gal bucket in 40 secs. Good? I think that is very good.

It drained the bucket that was on "outlet" side of the CAC according to the service manual. That hose was hooked up to the higher part of my intercooler. In short, it might not have been recirculating anything if there was no coolant. To be clear, the outlet on the CAC I am referring to is (from behind the CAC looking at the pump) on the top left an outlet. This is where it drained the bucket from. The closet nozzle on the CAC to the pump is where it was pumping water into. This seems backwards to me.

Last note, while the pump was pumping from one bucket to the next, it had some bubbles. Still air in the system right? Keep in mind I had to take the hose out to refill the bucket!

In short, Pump works, but is it pumping the right direction? See above.

 

[WyoSyclone]

Re: 155 Degree Temps at end of Track

That's good news! The connection nearest the factory pump location is the outlet out of the CAC, feeding the pump. The other is the inlet from the upper IC.

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

I'll get some clamps and 90 degree elbows and work on it probably Sunday to see how it does.

According to the service manual, on the charge air cooler, the top left nozzle (away from the pump) is the outlet. Mine is sucking water in through that nozzle not the nozzle by the pump!

I've decided that my Sy's pump is retarded!

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

The new hoses are in place. I have doubled checked the "problamatic" hose. Everything looks great! One question, I could use plain water to make sure nothing is leaking and to drive it around for a little bit, right? Or should I get distilled? If I had a camera I would post the pics, I am quite proud of my new hoses!

 

[Six-is-Enough]

Re: 155 Degree Temps at end of Track

Get Distilled. Don't chance it.

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

Put the distilled with the water wetter this evening. I got to see the coolant circulating for the first time. Took it for a drive, temps were in the 90's the whole time. I don't get it. Nothing was leaking or had leaked. I don't see bends or kinks. Air again?

A separate matter....as soon as the Sy goes over 8-10 lbs of boost, it sputters and feels like it hit the rev limiter. Why?

 

[James Thomas]

Re: 155 Degree Temps at end of Track

Burp the system again and or drive it and check the next day. If the level drops and there are no leaks, it's air. I went to great pains to make sure the top hose on the upper I.C. was higher than the other hoses but not higher the connection nipple it's self. No burping for me!

______________
James

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

When I got back from work tonight, the IC was low. Filled it up and went for a drive. Temps were in the high 80's. After some 2nd and 3rd gear runs it stayed in the 90's after the initial cool down from the 100's. It is currently 69 degrees out and 73% humidity at 11 pm.

I've almost come to the conclusion that it is not the hoses or intercooler/CAC, but me. Are my expectations to high? I wanted my temps to be about 10 degrees higher than ambient (during the spring/summer). Is that even achievable? Maybe I set my sights to high (low temps).

Three things I can do to improve the IAT. First, is wrap the downpipe. I figure I could save a couple of degrees, 5 at the max. The other, is adding a small fan behind the CAC. This would be particularly helpful especially in town/staging lanes. How much lower would the temps be? Third, bigger scoop for the CAC. Maybe a degree or two?

 

[James Thomas]

Re: 155 Degree Temps at end of Track

If it was low you have a leak OR an air pocket / block. How much did you have to add? Check it every morning before you start it for a few days and if there are no leaks, then it will stabilize and you won't need to add water. A mix of Redline Water Wetter and distiled water will be the best, even better than plain water and much better than coolant. If you have air in the system it won't cool properly and water will flow but not the way it should. You did the rubber hose replacement of the metal hard lines already, right? If not, ditch them quick.

____________
James

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

I added very little. I would guess the equivalent of less than a shot. I do have the 3/4 rubber hoses. I am also using distilled water and water wetter. Should I leave the cap off overnight or leave the cap on?

 

[Flyin Ryan]

Re: 155 Degree Temps at end of Track

I added very little. I would guess the equivalent of less than a shot. I do have the 3/4 rubber hoses. I am also using distilled water and water wetter. Should I leave the cap off overnight or leave the cap on?

Leave the cap off over night.. has a better chance of air working itself out possibly

 

[Vaders Sy]

Re: 155 Degree Temps at end of Track

I was washing my other car this morning and walked by the Sy. I noticed within an hour I filled it up last that the intercooler was low. I added some again. A few minutes later walked by it to get a rag, and noticed it was low. I taped a piece of paper on the overflow container and filled the intercooler up again. Within minutes I could see it was low again and the overflow container was over my piece of paper.

Why is it draining into the overflow? Is it to full? The overflow is getting some of the water mixture for the intercooler. Why is it not allowing the intercooler to completely fill without putting the water mixture into the overflow?

I have the ATR upper intercooler not the stock intercooler.

Just when I thought I had it right!