Jerry T
Well-Known Member
- Joined
- Nov 5, 2002
- Messages
- 1,544
Looking for the older nitro pipe, not muffled or parabolic for a MAC 21. Also 10 degree header for MAC 21.
Email: [email protected]
Thanks
Email: [email protected]
Thanks
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I'd like to try one on my new gear driven Speedmaster as soon as they are available.AndyBrown said:Many boaters liked that pipe. I may put it back in production. Anyone Second that?
MAC 21 headers will be back in stock next week.
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Hey Jerry have you tried the new 21 FAT parabolic? It's a killer!!!Jerry T said:Andy, I would think that when the new IMPBA noise language is approved this pipe will be very popular again.Jerry
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Jay the new FAT21 likes to run short. Mine is at 7 1/4" on my MAC21/SGX. B)Racerdude said:I would love to have the old pipes back.
On a related, but different topic, something changed in the .21 parabolic pipe when the pressure fitting was added. The same pipe length I used with the old parabolic no longer works, and in fact, the whole setup _seems_ (that means that I do not have scientific evidence to support this thought) to be slower with the new parabolic pipe. I have tried the fat pipe as well with limited luck. I have experimented at 8", 8 1/4", 8 1/2", and 8 3/4" - none seem to work like the old parabolic pipe at 8 5/8"!
I would also say that I am not sure I like the 90 degree style pressure fitting. It puts the pressure tube right next to the pipe, which gets hot enough to melt the pressure tubing.
I am also DYING for an 18 deg header!!!
Jay
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WOW!! :blink:Don Ferrette said:Jay the new FAT21 likes to run short. Mine is at 7 1/4" on my MAC21/SGX. B)
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Yup, measured along centerline of pipe and along side of motor.Racerdude said:Is that weld to center cylinder?
Thanks
Jay
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Don Ferrette said:Jay the new FAT21 likes to run short. Mine is at 7 1/4" on my MAC21/SGX. B)Racerdude said:I would love to have the old pipes back.
On a related, but different topic, something changed in the .21 parabolic pipe when the pressure fitting was added. The same pipe length I used with the old parabolic no longer works, and in fact, the whole setup _seems_ (that means that I do not have scientific evidence to support this thought) to be slower with the new parabolic pipe. I have tried the fat pipe as well with limited luck. I have experimented at 8", 8 1/4", 8 1/2", and 8 3/4" - none seem to work like the old parabolic pipe at 8 5/8"!
I would also say that I am not sure I like the 90 degree style pressure fitting. It puts the pressure tube right next to the pipe, which gets hot enough to melt the pressure tubing.
I am also DYING for an 18 deg header!!!
Jay
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I believe that all the new pipes come with the stinger drilled out to the larger dia. Unlike the old parabolic that you have if you did not drill it out.On a related, but different topic, something changed in the .21 parabolic pipe when the pressure fitting was added.
Hmmm, I've been using 90 degree fittings for years & never once melted a pressure line from pipe contact. :huh:Racerdude said:I would also say that I am not sure I like the 90 degree style pressure fitting. It puts the pressure tube right next to the pipe, which gets hot enough to melt the pressure tubing.
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Same here....... I prefer 90 degree fittings. I have more problems with water lines failing than the pressure line to the tank.Don Ferrette said:Hmmm, I've been using 90 degree fittings for years & never once melted a pressure line from pipe contact. :huh:Racerdude said:I would also say that I am not sure I like the 90 degree style pressure fitting. It puts the pressure tube right next to the pipe, which gets hot enough to melt the pressure tubing.
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Mike Hughes said:I believe that all the new pipes come with the stinger drilled out to the larger dia. Unlike the old parabolic that you have if you did not drill it out.On a related, but different topic, something changed in the .21 parabolic pipe when the pressure fitting was added.
Mike
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Did you richen it up after you drilled it? What length is it set at?Racerdude said:For some reason, when I drilled out the pipe, the boat slowed way down. The undrilled one seems to work best in my sport 20. What's up with that?
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