I finally had the chance to install my motor this week after having some work done to it, but the only problem now is that the motor is running really hot. I didn't have this problem before. I had some type s pistons installed and also a brand new oem water pump and mugen thermostat. the radiator that I'm using is the c&r radiator.

 

First, I would make sure there is no air trapped in the cooling system. Then I would double check your themostat and radiator installs. Make sure the thermostat is triggering and there are no leaks anywhere in the system. Then I would check your Air/Fuel ratios wide-band O2 and work from there. Running lean makes an engine run hot...

Andrew

 

What he said about the air in the system. Also I can't remember if the Thermostats in our cars are the type that will fit in backwards. If you did that there would be your problem. Also check the plug on the thermostat housing to make sure your fan is turning on. Also what temo thermostat did you put in there?

 

what aklucsarits said.
Bleed the radiator/cooling systems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aklucsarits &raquo;</TD></TR><TR><TD CLASS="quote">First, I would make sure there is no air trapped in the cooling system. Then I would double check your themostat and radiator installs. Make sure the thermostat is triggering and there are no leaks anywhere in the system. Then I would check your Air/Fuel ratios wide-band O2 and work from there. Running lean makes an engine run hot...

Andrew</TD></TR></TABLE>
Thanks. I would probably drain the cooling system again this weekend and double check on the thermostat. The car runs fine for about 10-20 mins but after that it would start to get really hot, the fan would come on after 5-10 min of start up and I'm also running some rs machines cams so there could be a chance that i'm running lean.

 

what injectors are you running?

if you are too lean, you really should NOT drive your car around. if its too lean you can blow up your motor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bob-DC2 &raquo;</TD></TR><TR><TD CLASS="quote">what injectors are you running?

if you are too lean, you really should NOT drive your car around. if its too lean you can blow up your motor</TD></TR></TABLE>
I'm still running the stock injectors I think 270cc, its a 98 jdm motor.

 

if you are over 180whp you are runnign too lean most likely

 

id be careful..

on my stage 3s with 345cc injectors and a skunk2 chipped ecu i was still critiacally lean.. i had to change the plugs and them some more... retarted the timing alot too...

way better with hondata.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bob-DC2 &raquo;</TD></TR><TR><TD CLASS="quote">if you are over 180whp you are runnign too lean most likely</TD></TR></TABLE>
I made 185 when stock, but I didn't have a wideband to hook to see the air/fuel ratio, I'm also running hondata with the type s base program.