P/N for intercooler pump?

[wolfie]

Does anybody have the part number for the intercooler pump?
What are the operation parameters of the pump? Is it controlled by a thermostat or does it run constantly (so long as the motor is running)
Is the pump the same for all years?

[Sp00ner]

LFP sells one, IERedline just picked it up. Same as our pump. It runs constantly, but doesn't turn on for 5-10 seconds after the car is started, and doesn't run if the intake temps are REAL low.

[wolfie]

Originally Posted by Sp00ner

LFP sells one, IERedline just picked it up. Same as our pump. It runs constantly, but doesn't turn on for 5-10 seconds after the car is started, and doesn't run if the intake temps are REAL low.

Thanks for the info Sp00ner. Do you have the Interceptors? The reason I ask is I am trying to find out what the "normal" IAT2 temps should be

[Sp00ner]

Originally Posted by wolfie

Thanks for the info Sp00ner. Do you have the Interceptors? The reason I ask is I am trying to find out what the "normal" IAT2 temps should be

About 40* warmer than IAT1 at 55-60 mph, after driving for about 2-3 min... if you're sitting still, or have been running hard, it can up up to 100* more, but should go down quickly.

[vandy0419]

Hey Sp00ner, I was thinking of testing to see if my pump is working. If I remove the hose on the right side of the reservoir and start the car, let it sit and then rev it a little, if nothing comes out, even though there is coolant in there it is broke, right? I mean it should be rather noticeable because just revving will cause a lot of heat and then the IAT2 would heat up fast and with the pump flowing at 7gpm, the lines would be empty almost in a matter of seconds if it worked...right?

[Pierre]

Originally Posted by vandy0419

Hey Sp00ner, I was thinking of testing to see if my pump is working. If I remove the hose on the right side of the reservoir and start the car, let it sit and then rev it a little, if nothing comes out, even though there is coolant in there it is broke, right? I mean it should be rather noticeable because just revving will cause a lot of heat and then the IAT2 would heat up fast and with the pump flowing at 7gpm, the lines would be empty almost in a matter of seconds if it worked...right?

Vandy

You will not get 6 GPM unless it's under ideal conditions. There can be no restriction whatsoever. For example if you have 1 ft of hose on each end and a bucket of water to put the suction hose in and to dump back. Jumper the power wires and see for yourself. Then try it with reverse polarity.

Installed on the car I think I remember WOP saying 2 GPM. That's certainly believable given the Laminova's and the HE it has to pump through.

Just to put things in perspective a garden hose at home will flow at about 4-5 GPM.

I get a sense that you are still not happy with your IAT2's. If that's true I'd start looking at the basics instead of throwing more parts at it. Test your pump.

Pierre

[vandy0419]

Originally Posted by Pierre

I get a sense that you are still not happy with your IAT2's. If that's true I'd start looking at the basics instead of throwing more parts at it. Test your pump.

Pierre

Yeah, thats the thing. How do I test it though? In the very early morning, my temps are about what the IAT2 is when I start the car up. That last for just a second, by the end of my 4 mile drive to work at 7am, it is at a 80-90 degree difference and then just cruising on the highway it is a 100* difference. It seems like the coolant just is flowing at all. I double checked the connections of the power clip, but it is fine.

The other day I turned my car on, removed the right hose off the overflow reservoir, put maybe 2 oz of dex cool in and coolant started drizzling out the open end of the reservoir. So I knew it had enough coolant and wasn't clogged in the lines. It seems like when I had coolant, it isn't in large amounts, if just a tad bit. Also, the other day I was driving around for a while, no WOT or anything, I don't push my car too hard, and the temps were 98* differences, left it running when I got home, opened the cap and there is nothing flowing at all. I put a dab of coolant in and it didn't go anywhere in the filter I put in.

I don't want to have the problem of buying something without knowing for sure that is whats wrong. The pump is definitely the cheapest way of finding out if thats the issue.

Wasn't it you Sp00ner who had the internals of his pump all screwed up?

[Sp00ner]

Originally Posted by vandy0419

Wasn't it you Sp00ner who had the internals of his pump all screwed up?

Yup... it was broken apart...

Which reminds me, the pump isn't a normal impeller...

[vandy0419]

Okay, so in summation, how do I want to find out if the pump is functioning? That time when I had just got home and saw nothing flowing, I pinched the right side of the hose and the only thing the rose up in the overflow reservoir was the coolant from that right side...held it for a while and nothing...

[Pierre]

Originally Posted by vandy0419

Okay, so in summation, how do I want to find out if the pump is functioning? That time when I had just got home and saw nothing flowing, I pinched the right side of the hose and the only thing the rose up in the overflow reservoir was the coolant from that right side...held it for a while and nothing...

Take the pump out. Attach about 36" of heater hose to the suction and discharge ports. Get a 5 gallon pail and fill most of the way with water. Put the suction hose in the bucket ( the one in line with the pump motor). You should have enough suction line to go to the bottom of the pail and be able to rest the pump on the ground. siphon the water through the pump to prime it through the dischrage line. Get a 12v power supply connected and see what comes out. Reverse polarity and try again. You should be able to get a sense of how many GPM it pumps using another bucket and timing how long it takes to pump 2 gallons.

It's a bit of work but it seems like you have been struggling with this for a while and I know you're not happy about it. A 100 F difference between IAT1 and IAT2 at cruise is way too high and indicative of no pump flow. With your 2 HE's you should have less than 30F.


Pierre