I've just finished my engine swapped into my car. I took it for a test drive and when I got back I decided to check the engine. I notice that the exhaust manifold and turbo was glowing red hot. Anybody knows why this is happening?
Is your engine overheating?
When I had a coolant leak, and my engine got hot (like close to the line dividing normal to hot) and shut off my car and popped the hood, mine was glowing..
It was on a CA20E
Running lean, has your timing been checked?
More than likely you have some condition that is causing you to increase load on the engine. This could be a misfire, running on 3 cyls, timing is off, or just running really rich or really lean. Is there hesitation when accelerating or a large amount of lag when getting into boost?
Since it's turboed, you need to check into replacing your coolant, oil, and possibly taking the manifold off the car to inspect for blockage due to the manifold itself breaking, a clog of some sort, or even check the exhaust flow. If you have a clogged muffler, bent pipe, etc, it will place an incredible strain on the manifold and eventually all other exhaust accessories (valves, seats, gaskets, etc etc)
Check it all out. It may definately be worth it to save your engine of major possible harm.
My timing is set at 10 degree so the motor can work with the turbo. Its not overheating of any kind. It does have a small hesitation when accerlating until boost kicks in then it would run good and strong. I think is probably has something to do with running lean or exhaust restriction. I dont have a cataconverter so that is out of the question. My exhaust pipe is a 2.5 downpipe all the way toward the middle of the car. Then it drops down to 2 1/4 for 1 foot of length and back to 2.5 to the flowmaster muffler. I know its stupid to have a 2 1/4 in exhaust pipe in it but there was no way of installing a 2.5in pipe in that area. I don't think that would of restrict the exhaust flow that much! BTW I'm using the nonturbo wire harness and ecu to run the ca18det motor. I'm also using the 370cc injector that came with the motor. It runs great until the manifold gets hot red then it starts to bogg and run like crap! Oh, yeah I'm also running at 7psi of boost. You think I should drop the boost lower?
if your o2 is still plugged in see what happens un plugging it my car did weird thigns when mine died, also playign with timing probobly a good idea
I haven't tried unplugging the o2 sensor. Maybe I give it a try just to see what happens! At this point I'll try anything to cure this (hot) problem.
If you are running the non-turbo harness and ECU, that is likely your problem. The non-turbo ECU may not have been programmed to deal with boost, or levels of airflow associated with boost, so you may be running extremely lean!! Do you have an air/fuel gauge? One is necessary when tuning an engine. You really can't just add in the turbo in your setup without knowing whether or not there is adequate fuel delivery for your setup. Larger injectors may help, but yours are stock for that motor with factory turbo computer, but if the non-turbo computer does not know what to do or is even able to read large amounts of airflow then it may not be able to add enough fuel! For now, drive out of boost or leave the car parked until you can get the correct ECU or figure out additional fuel enrichment, of which there are several methods (rising rate fuel pressure regulator, additional injector (s), SAFC, reprogram, etc...) The manifold glowing hot is because extremely lean mixtures result in very high exhaust temps.
...or get a 18det ecu...
that would decidedly be the preferred method biggrin.gif as long as extra fuel is added somehow thumbsup.gif
I am using the 370cc injector that came with the ca18det motor. The nonturbo ecu is running 260cc injectors stock so me using the 370cc injector shouldn't be a problem. I think my exhaust housing for the turbo is the problem. Its off the diesel mercede and it has a split housing for the turbo and wastgate. the exhaust is probably swirling inside the manifold to find a way out until the wastgate opens. Thats probably why I had no boost lag!
200sxkitcar @ Nov 7 2007, 09:57 PM
The manifold glowing hot is because extremely lean mixtures result in very high exhaust temps.
What if I install the dsm 450cc injectors! Will that help me from running lean at this time until I get the ecu reprogrammed?
rookie @ Nov 8 2007, 04:58 PM
What if I install the dsm 450cc injectors! Will that help me from running lean at this time until I get the ecu reprogrammed?