FastRonald
Well-known member
8) Has anyone machined off the log intake, use pipe taps to thread the intake runners and weld up a rigid conduit intake?
Another off the wall intake thought
- Thread starter FastRonald
- Start date
MandarinaRacing
Famous Member
There are several members that have tried to go that route, main problem seems to be the time and $$$ that takes into building and fabricating something like that.
Back in the sixties Stroppe racing built a couple of hi-po small sixes (170-144). They cut the log and fabbed a flange that was furnace brazed to the cast iron head, then the headers and a mechanical injection could be bolted to it, I have some pics, hopefully you'll be able to see them....
http://mandarinamustang.tripod.com/fordsix/id20.html
Alex
Back in the sixties Stroppe racing built a couple of hi-po small sixes (170-144). They cut the log and fabbed a flange that was furnace brazed to the cast iron head, then the headers and a mechanical injection could be bolted to it, I have some pics, hopefully you'll be able to see them....
http://mandarinamustang.tripod.com/fordsix/id20.html
Alex
G
Guest
Guest
I've been selling that idea for a couple of years. I cut the intake off this head almost 3 years ago and decided that it just wasn't worth the effort to continue - hence the title and SawZall pic
If you want this head, it's yours for shipping
Al
If you want this head, it's yours for shipping
Al
FastRonald
Well-known member
8) Is that a 200 head? Have an idea what the current weight is?
I just may take it off your hands......I'm in the Chicago suburbs.
I just may take it off your hands......I'm in the Chicago suburbs.
G
Guest
Guest
It's a C6 head. It doesn't weigh that much anymore 
I've got an account with UPS, so shipping charges are as best as it gets for me. I'll weigh it and let you know.
Al
I've got an account with UPS, so shipping charges are as best as it gets for me. I'll weigh it and let you know.
Al
A
Anonymous
Guest
Fast Ron;
Now you've awakened a sleeping serpent....
When Hackmeister cut off those intake runners, it started a thread that got lost when the old FordSix server died, so I'll start it again.
The hot setup for the Bonneville boys (land speed record freaks) has been to hack off the intakes and install 6 motorcycle carbs, one per cylinder. It's not as hard to balance as you might think, but getting the linkage built is the major issue.
Motorcycle carbs do not have power valves. This is the #1 consideration for using these in this arrangement, as the vacuum will pulse with each intake stroke, so power-valve-equipped carbs WILL NOT WORK with less than 2 cylinders: the power valve will always be open, ruining the mix. Some motorcycle carbs are available with tiny accelerator pumps, most notably the Mikunis used by Kawasaki on their LTD series 1000cc bikes.
Motorcycle carbs are EXCEEDINGLY easy to tune. If you get that far, let's talk and I'll give you the complete skinny on this: I have 30 years' experience with them. The main thing to consider is: don't get the carbs too big. Use a carb that is roughly the size of your intake valve for best all-around performance. They are measured in millimeters, so get that conversion chart ready. A 28mm Mikuni or Keihin would be an excellent choice for the late-model 200 heads.
The other consideration is: intake noise. These carbs are shaped like a megaphone, large end to the air filter. This means it will be loud under the hood. A nice sheet metal box with air filter would be advised.
Now you've awakened a sleeping serpent....
When Hackmeister cut off those intake runners, it started a thread that got lost when the old FordSix server died, so I'll start it again.
The hot setup for the Bonneville boys (land speed record freaks) has been to hack off the intakes and install 6 motorcycle carbs, one per cylinder. It's not as hard to balance as you might think, but getting the linkage built is the major issue.
Motorcycle carbs do not have power valves. This is the #1 consideration for using these in this arrangement, as the vacuum will pulse with each intake stroke, so power-valve-equipped carbs WILL NOT WORK with less than 2 cylinders: the power valve will always be open, ruining the mix. Some motorcycle carbs are available with tiny accelerator pumps, most notably the Mikunis used by Kawasaki on their LTD series 1000cc bikes.
Motorcycle carbs are EXCEEDINGLY easy to tune. If you get that far, let's talk and I'll give you the complete skinny on this: I have 30 years' experience with them. The main thing to consider is: don't get the carbs too big. Use a carb that is roughly the size of your intake valve for best all-around performance. They are measured in millimeters, so get that conversion chart ready. A 28mm Mikuni or Keihin would be an excellent choice for the late-model 200 heads.
The other consideration is: intake noise. These carbs are shaped like a megaphone, large end to the air filter. This means it will be loud under the hood. A nice sheet metal box with air filter would be advised.
MandarinaRacing
Famous Member
I believe that cutting the log a fabing some sort of intake for Webers or Mikunis is a good choice for an all out killer inline six, if that's what you're looking for. But if your goal is just to increase Hp and torque and still be able to drive it every day, then perhaps an OZ 250 2V head or and Argentinian ME or SP heap is better.
A
Anonymous
Guest
that would be a good way to go, the six motorcycle carburetors, but would it be too much fuel and overwhelm the six at slow speeds. Say, driving around town at 30 MPH?
A
Anonymous
Guest
Hi, MercSix;
No, the little bike carbs are made to live in that very environment. There is one exception, though: if you get too big with the carbs. Since they are available up to 50mm in size, most guys play Tim Taylor and go for too much power. Tractablility comes from having smaller-than-you-might-think carbs in this situation. Again, approximately matching the intake valve area to the carb throat area is a good place to start.
No, the little bike carbs are made to live in that very environment. There is one exception, though: if you get too big with the carbs. Since they are available up to 50mm in size, most guys play Tim Taylor and go for too much power. Tractablility comes from having smaller-than-you-might-think carbs in this situation. Again, approximately matching the intake valve area to the carb throat area is a good place to start.
A
Anonymous
Guest
Mandarina- I noticed on you'r nitrous system you have thread tape. Most nitrous manufactures dont reconmend thread tape because it could come loose and plug somthing like the fuel side 
Most of them reconmend the paste vs the tape.
Steven
Most of them reconmend the paste vs the tape.Steven
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