I have the Comptech supercharged with aftercooler but its a liquid aftercooler. My motor went out (melted pistons somehow) and while noone is certain we think its becuase the pump for the aftercooler gave out or got unpluged. My question is does anyone with this setup have any way of being sure that the pump is running? I was thinkin about just hooking up an led to the realy but taht doesnt really help if the pump goes out. Any ideas?

 

i dont own a comptech, but the kit is sold without a aftercooler also. So even if the pump did go out, i doubt that would be the cause of your melting your piston. Were you running stock boost? Maybe it would effect it, if you had upped the boost.

 

boost was upped.....i am sure that even if it did go out it was not the only reason for the meltdown, but now with a built motor and more boost it could be a greater problem

 

I belive all aftercoolers are liquid cooled. That is definitely not the reason you melted your pistons. Its because you upped the boost and Im guessing you werent running bigger injectors or an ecu.

My pump went out on me before also, cleaned the connectors on the relay and it kicked back on. If you turn your key, you can hear it come on unless your in a real loud area.

 

what PSI pulley did you put on??? the FMU that the comptech kit comes with will only support around 8psi tops. so anything over that without upgrading your injectors/fuel control will cause your car to run lean and melt **** inside the motor just like yours...alittle more info on your setup and ill answet the best i can.

 

if your fuel pump wasnt working your car wouldnt even start.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ8 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">boost was upped.....i am sure that even if it did go out it was not the only reason for the meltdown, but now with a built motor and more boost it could be a greater problem</TD></TR></TABLE>

but how much?

i cant see this happening with under 10psi. sound like your car just ran hot.

was it tuned at all?

 

I would think the problem accrued because of leaning out, detonating.

There could be a lot of reason why it happen..
Your liquid(water) pump for the after cooling dieing I thought is one of them

 

i have never heard of a COMPTECH cooling pump failing. that just doesnt happen...Too much boost for that little fuel caused it to BOOOOM!

 

If you want to monitor the operating temperatures of the aftercooler fluid then get a temp gauge and mount it in the aftercooler discharge line.

When you increase the boost with these superchargers you must carefully monitor the temps, fuel pressure, A/F ratios, injector duty cycle, knock sensors and a whole lot more. Did you have an aftermarket ECU? Did you have assistance tuning it?

When you rebuild do not assume the aftercooler was the problem or you will end up rebuilding twice.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sideways &raquo;</TD></TR><TR><TD CLASS="quote">If you want to monitor the operating temperatures of the aftercooler fluid then get a temp gauge and mount it in the aftercooler discharge line. </TD></TR></TABLE>


What temp range do you see for this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sideways &raquo;</TD></TR><TR><TD CLASS="quote">If you want to monitor the operating temperatures of the aftercooler fluid then get a temp gauge and mount it in the aftercooler discharge line.

When you increase the boost with these superchargers you must carefully monitor the temps, fuel pressure, A/F ratios, injector duty cycle, knock sensors and a whole lot more. Did you have an aftermarket ECU? Did you have assistance tuning it?

When you rebuild do not assume the aftercooler was the problem or you will end up rebuilding twice. </TD></TR></TABLE>

First time it was tuned before i bought the car. Now its been tuned yes, not by me...and its running emanage ultimate. I am not saying that the aftercooler was the only thing, it am just worried becuase a lot hinges on that darn pump and i want a way to make sure its working.