« previous next »
Pages: [1]   Go Down

Author Topic: four into one intake  (Read 1867 times)

0 Members and 2 Guests are viewing this topic.

Offline country joe

  • Full Member
  • *
  • Posts: 74
four into one intake
« on: May 31, 2010, 05:07:29 AM »
 Hey y'all! I had this idea that will be total blasphemy to most of the sohc members, but I think would work great. Has anyone ever heard of anyone selling or currently making 4 into one intake manifolds for sohc fours? I have seen a couple in The Horse chopper magazine, but I believe they were totally homemade. The only reason I thought of it was it would take a lot of the work out of adjusting the carbs and such. Just easier maintainenance, and simplicity overall. I know where I can score a Mikuni HS 42 real cheap, and figured why not a four into one intake with this sucker on it? Hell, I don't know, the Mikuni might be too small, but I just wnated to kn ow if anyone here has either done a four into one, or knows where I can get one. Thanks
Logged
'78 Honda CB550K
'79 Yamaha IT400
'74 H-D Sprint 350 (basket case)

Offline Gonzowerke

  • I burn asses like a Bhut Jolokia, 'cause I'm a real
  • Hot Shot
  • ***
  • Posts: 360
  • Member #106, Owner of the ORIGINAL Frankenbike!
Re: four into one intake
« Reply #1 on: May 31, 2010, 05:41:51 AM »
QUADRAJET BABY!!!!!




Seriously, no, I don't know where you can get one.
Logged
1977 F2 "Highway Star"
1977 F2 "Bike-In-A-Box"
1978 K8 "Frankenbike"
1991 CRX Si "Buzz Bomb"
2000 Jeep Wrangler "UBoat"
2011 BMW S1000RR "TIE Fighter"

Offline crazypj

  • I'm brill, me
  • Old Timer
  • ******
  • Posts: 4,467
  • first 100,000 miles. 1977 CB550F
Re: four into one intake
« Reply #2 on: May 31, 2010, 06:20:22 AM »
Good reason not to do it is it runs rich on middle cylinders and lean on outer ones, plus you lose a bunch of performance.
 If you want a low HP single carb bike, get a CB125
Logged
I fake being smart pretty good
'you can take my word for it or argue until you find out I'm right'

Offline Frankencake

  • Yesssssss,
  • Master
  • *****
  • Posts: 1,847
  • "I like the old junk"
Re: four into one intake
« Reply #3 on: May 31, 2010, 07:33:31 AM »
I have seen it. No, there is no place to buy one.  They do run lean on the outside cylinders.  If anything, you should think about twin carbs instead of 1>4.  Your rings will thank you.
Logged
"Sure, if you don't want that bike in your backyard, I guess I'll take it."  "I'll probably just scrap it......"

Frankencake:  Brotherhood of the unemployed?  What's our secret handshake?

333:  Think "Shakeweight".

Offline gerhed

  • Master
  • *****
  • Posts: 1,801
Re: four into one intake
« Reply #4 on: May 31, 2010, 11:08:13 AM »
4 into 2 from cycle-x
Works well
Logged
Rides: 75 CB750F, 48 Indian Chief, 67 Triumph TR6, 63Honda CA95
          83 XL600R in CB360 Frame
          3-wheel electric tilting cycle

Offline faux fiddy

  • Just becaus I'm the second post on the pissed off thread doesn't mean I'm an
  • Old Timer
  • ******
  • Posts: 4,812
  • bike in a box
Re: four into one intake
« Reply #5 on: May 31, 2010, 04:51:18 PM »
I'd like to see any fuel injetion/ megasquirt conversions, if any were around. Even better than a carb.

I've read about the newer mikuni ibeat FI and the system doesn't require high pressure fuel pumps and lines. It's common on indonisian honda scooters; virtually non-existent  elsewhere and unobtanium as an after-market tinkerer's jewel. I think this stuff could have wonderful application on the SOHC-4  if you could get it, and it could be 1 n2 4, 2  into 4, or 4 n2 4.
« Last Edit: May 31, 2010, 05:35:06 PM by poor boi »
Logged
^^^^^^^/l^^^^^^^^^^^^^^/l^^^
. . ______/ l_________________/  l
<'  '  '   '  o .  . . . . . . .................(
 ' VVVVV'   ')))))____>-''''''''''''''''''\  l
' . vvvv_   -              -                 \/

Offline Retro Rocket

  • Eggs are hard due too a
  • Really Old Timer ...
  • *******
  • Posts: 19,279
  • ROCK & ROLL
Re: four into one intake
« Reply #6 on: May 31, 2010, 05:02:54 PM »
Quote from: poor boi on May 31, 2010, 04:51:18 PM
I'd ike t see any fuel injetion/ megasquirt conversions if any were around. Even better than a carb.

I've read about the newer mikuni ibeat FI and the system doesn't require high pressure fuel pumps and lines. It's common on indonisianhonda scooters; virtually non-existent  elsewhere and unobtanium as an after-market tinkerer jewel. I think this stuff could have wonderful applicatin on the SOHC-4  if you could get it, and it could be 1 n2 4, 2into 4, or 4 n2 4.

Do a search , there's a couple of guys on here running microsquirt systems...
This thread is quite long but very informative.
http://forums.sohc4.net/index.php?topic=30624.0


Mick
Logged
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline DrWatsonII

  • Full Member
  • *
  • Posts: 14
Re: four into one intake
« Reply #7 on: May 31, 2010, 05:37:01 PM »
Logged

Offline faux fiddy

  • Just becaus I'm the second post on the pissed off thread doesn't mean I'm an
  • Old Timer
  • ******
  • Posts: 4,812
  • bike in a box
Re: four into one intake
« Reply #8 on: May 31, 2010, 06:00:17 PM »
Not really meaning to threadjack this , but if doing something different thanstock maybe FI is the way to go.

Here's what I'd like to do for a conversion. One on each cylider, self contained with it's own fuel pressure.

http://www.mikuni.co.jp/e/iBeat/index.html

Logged
^^^^^^^/l^^^^^^^^^^^^^^/l^^^
. . ______/ l_________________/  l
<'  '  '   '  o .  . . . . . . .................(
 ' VVVVV'   ')))))____>-''''''''''''''''''\  l
' . vvvv_   -              -                 \/

Offline country joe

  • Full Member
  • *
  • Posts: 74
Re: four into one intake
« Reply #9 on: June 01, 2010, 08:03:34 AM »
thanks for all the input guys it has been very helpful. A fuel injection system would really kick ass! I agree there. I'm gong to check out cycle x I think. Again thanks all!
Logged
'78 Honda CB550K
'79 Yamaha IT400
'74 H-D Sprint 350 (basket case)
Pages: [1]   Go Up
« previous next »