Re: metra 80 blowback avoidable?

Tate /
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Some people like to be condescending, don't take it personal.

Thats kind of the piston port curse, and part of the reason you don't see anything modern with piston port (expect for the A55 for some reason).

What I have found to be a good way to reduce the actual amount of mixture vomited back out of the carb is to make kind of like a J tube out of rubber. Then I drill a bunch of holes in it and wrap the whole thing (except the ends) in foam. I use UNI foam because I can get it around here for cheap, but even stuff like for lawnmowers from the hardware store will work, but might be a little more restrictive. Then I put a metal screen from a SHA on the far end and secured it there.

I can't tell you why it worked physics wise, but I think the fact that there is more surface area for the gas to evaporate from, the metal screen can't get soaked, and it can't really puke it all the way out fast enough with the bend in the J tube.

Also the velocity stack sounds reasonable and easy enough to implement.

Obviously if you had some way to fabricate up or machine in a reedvalve, that would be awesome. Its already a pretty tight squeeze in there though.

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Subject Written By Posted
  metra 80 blowback avoidable?Topic by: chris chris 12/28/09 05:33AM
  Re: metra 80 blowback avoidable?Re: Sadder Joey P Sadder Joey P 12/28/09 05:52AM
  Re: metra 80 blowback avoidable?Re: zeke zeke 12/28/09 09:02AM
  Re: metra 80 blowback avoidable?Re: King Drunky JCams King Drunky JCams 12/28/09 10:53AM
  Re: metra 80 blowback avoidable?Re: Chris Rice Chris Rice 12/28/09 11:14AM
  Re: metra 80 blowback avoidable?Re: Cole Doubt Cole Doubt 12/28/09 11:46AM
  Re: metra 80 blowback avoidable?Re: mattology - mattology - 12/28/09 12:15PM
  Re: metra 80 blowback avoidable?Re: Graham Motzing Graham Motzing 12/28/09 02:33PM
  Re: metra 80 blowback avoidable?Re: Chris Rice Chris Rice 12/28/09 03:21PM
  Re: metra 80 blowback avoidable?Re: vic vic 12/28/09 03:53PM
  Re: metra 80 blowback avoidable?Re: Chris Rice Chris Rice 12/28/09 04:01PM
  Re: metra 80 blowback avoidable?Re: Flagrant - Flagrant - 12/28/09 05:42PM
  Re: metra 80 blowback avoidable?Re: Chris Rice Chris Rice 12/28/09 05:55PM
  Re: metra 80 blowback avoidable?Re: Flagrant - Flagrant - 12/28/09 07:16PM
  Re: metra 80 blowback avoidable?Re: andrewhed andrewhed 12/28/09 08:11PM
  Re: metra 80 blowback avoidable?Re: chris chris 12/30/09 12:26AM
  Re: metra 80 blowback avoidable?Re: Tate Tate 12/30/09 12:47AM
  Re: metra 80 blowback avoidable?Re: Cole Doubt Cole Doubt 12/31/09 06:28PM
  Re: metra 80 blowback avoidable?Re: Saabsonettguy . Saabsonettguy . 12/31/09 08:30PM
  Re: metra 80 blowback avoidable?Re: rock rock 12/31/09 08:52PM
  Re: metra 80 blowback avoidable?Re: Flagrant - Flagrant - 12/31/09 10:12PM
  Re: metra 80 blowback avoidable?Re: Bacon Bacon 01/01/10 06:06AM
  Re: metra 80 blowback avoidable?Re: chris chris 01/01/10 10:16PM

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