exhaust manifold glowing

[nismofan20]

Hey I have a rebuilt KA24E in my S13 and my exhaust manifold is glowin under normal driving situations you know the whole break in procedures low RPMs not cruzin very fast and what have ya. But my motor acts like its overheating and my temp gauge shows it to be well within operating numbers the motor is also sluggish and wants to bog when I accelerate not to mention that the exhaust manifold glows . The car is an auto but the engine has been bored and fresh pistons and rods and the such.I have been fightin this thing for a while now and im not winnin so any help would be appreciated

[neverlift]

my man it sounds like running hella lean to make the manifold glow. I have only seen that on turbo manifolds and high compression motors. How much bid you bore, what pistons?

[crzycav86]

did you set the timing properly?(with timing gun, following proper procedure) retarded timing will make the exhaust hot.

[wankelTII]

Drop your exhaust after the manifold and see if it stops glowing. Your catalytic converter is probably clogged, or something else in the exhaust is probably making a huge resriction of some sort.

[sliders]

clogged exhuast system, if you were runing lean youd have detonation

[neverlift]

I run my custom tune pretty lean without detonation. but then its not a 17:1 race gas motor tho.

[ddgsxr504]

Your catalytic converter is probably clogged, or something else in the exhaust is probably making a huge resriction of some sort.

[SR20drftSX]

thatd explain yur sluggin acceleration aswell cut that beast off right before the cat ... i think unbolting yur downpipe would be entirely too load and may harm something..drive the car for about 20 minutes , and then park it...go back outside after half hour or so and if yur cat is still hott then yu know yurs cat plugged

[lbrowne]

Its either your timing or your cat. I would check the timing first though.

[SR20drftSX]

yeah , any shop will be able to do the timing in a snap

[89240sylvia]

make sure your plug wires are all in the right spot.......... that sounds logic... if im right you owe me your motar......lol

[89240sylvia]

also....check your wireing job make sure everthing is in the right spot..... what do you do when it gets RED?