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Looking for any ideas.
Honda 3.5 A4 motor runs great until it gets to operating temperature. The fans will come on and the motor will not rev over 3000 to 3200 rpm. Acts like its hitting the rev limiter. Once it cools back down it runs fine. Any ideas or anybody had similar issues with theirs?
 
Richard h said:
Looking for any ideas.
Honda 3.5 A4 motor runs great until it gets to operating temperature. The fans will come on and the motor will not rev over 3000 to 3200 rpm. Acts like its hitting the rev limiter. Once it cools back down it runs fine. Any ideas or anybody had similar issues with theirs?
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Helped a guy with a similar issue once. He was convinced it was the ECU, so I sold him one. Problem went away...
 
Water lines when using an aftermarket water neck...and I know I need to figure out the water temp and fan sensor locations...

After talking with @Kraut_n_Rice It's my understanding that the two outers on the cylinder heads should go to the top of the radiator (hot water in) - and the center inlet should be the "cold" water out from the radiator.

Curious on opinions - Wondering if I T the two cylinder outlets (-16AN T) - and then use a -20AN for the inlet on the center - or just stick with -16AN for everything.

I might also just use the typical 1 1/4 for the host inlet and 1 1/2 for the outlet...and ditch the AN fittings. Still debating cost / looks / etc.

In the cars I've seen in the dunes, it's a mixed bag of what people have done.

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