I should have known better

[EatMyShortsRacing]

Well I got out last sunday for about fifteen minutes of boating before the wind really chopped the lake up and managed to prove my worst nightmare.... I dont learn from my mistakes!!!!!!

Lets just go back to about twelve months ago when I had massive problems getting horsepower out of my A45 / CMB quiet pipe combination (AKA StealthBoat. I honestly could not hear it running up the back straight). After playing with that setup and having no success I finally tried my old trusty MACS 45 quiet pipe (high nitro). All of a sudden my performance is back!!!!!

So 12 months later and my MAC45 in a Seaducer has been causing me stress with not revving out, carbon deposits on piston and head a deep shade of black and the engine going off pipe about 2 laps into the race and not wanting to come back on..... I had been trying a different pipe again and from what I could see I thought I was having overheating problems.... Again I went back to my trusty MACS 45 pipe and presto!!!! I now have the ability to back off and get on pipe again... my revs are back... now I just have to stop destroying 3/16 flex shafts and I will be real happy... so now I have two 45 pipes that I cant get to work!!! Most likely both of them had too much back pressure for the engines so I am now going to disect the old pipe and see if I can resurrect it to be some use.....

Moral of this story.... there must be one...

 

[Jerry Wyss]

The "Moral" is, "You Just Don't Know When Have Something Good Until You, TAKE IT OFF!" :lol:

 

[Tim_Duggan]

Introduce those pipes to a crockpot full of antifreeze...............

 

[EatMyShortsRacing]

Introduce those pipes to a crockpot full of antifreeze...............

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inventive....

I was thinking of introducing them to about 4000 degrees.....

But I do have to give it one more chance once I figure out exactly what caused the issue.... coz now I am one 45 pipe short....

oh and additional to the first post... the plug was coming in a bit frosted and the face of the plug was almost black.... now the plug looks almost better than new after a run.....

and I do have remote 3rd channel needle as well....

 

[Tim_Duggan]

The antifreeze trick cleans all the baked-on crud out of the inside of the pipe. Good for cleaning up crankcases too B) Give it a try - not at 4000 degrees though

 

[Jerry Wyss]

I agree on the "antifreeze", old mechanics trick. Wipe some on the top of the pistons on a car engine (if your changing a head gasket) and the next day the carbon is standing up like "baklava",,,it's a Greek thing,,,maybe Bolivian? :blink:

4000 degrees will do it too

 

[EatMyShortsRacing]

The antifreeze trick cleans all the baked-on crud out of the inside of the pipe. Good for cleaning up crankcases too  B)   Give it a try - not at 4000 degrees though 

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Would have been a good idea to try if the pipe wasnt brand new :blink:

 

[Ken Retallick]

So it wasnt the engine falling asleep......

Unlike a certain driver at a certain recent country race meeting??

Never a dull moment with Craig around, except when hes sleeping...........

 

[Roy Munoz]

If you want even better proformance from those 45's try the MACS prod 8cc airplane quite pipe...I have a bunch of pipes too and keep going back to my MACS...The only other one that works for me is the Irwin quite pipe.set at 10" from plug to weld..

 

[Roxyflash]

You need to try a 45 CMD Parabolic quiet pipe.