Behind the Bonnet: Infographic of IOE winning Turbo Whorenet

Phil,

How do I get it blowed up  (the pic, that is)

I saved the pic, then tried to go 400%.  all blurry.

May I steal this image for a C/D post?

Judge Phil, please use at will, including posting it up at youporn

here is a direct link :  http://www.flickr.com/photos/townplanni … 657321147/

And here are "Proof of Concept" test pictures.  The leaf blower fumes in the car almost killed me before the test was completed. Dont try this at home or before any cognitive or blood testing ;-)

Turbo "Proof of Concept" test by shoalsailing, on Flickr

The Ammo Box test by shoalsailing, on Flickr

Yes there must be 100 pages of jeep and AMC forum chatter bout these cam gears. And I read every one before I did the cheap HEI.   But what everyone in those posts seemed to miss is that the 258 i6 cam has the dist. gear teeth machined into it and its a one piece unit.  The argument that the Chinese metal gear on the distributor is somehow harder than my hardened camshaft steel defies logic. The v8 (304 etc) have a different setup and the cam gear is removable and is not part of the cam metal itself  (at least that's my understanding)  Therefore the 258 distributor cam gear is part of the camshaft, which is pretty darn hardened.   Even so I pulled the dist after a couple hundred miles and checked the gear because I was so gun shy, and it looks like new.  It's a six vs 8 cylinder thing I guess.

That twin carb setup is actually brilliant because it eliminates the long intake tract to #1 & 6 which always run lean as a consequence of the old school stock manifold.

Buying new parts is for cheaters. Just grind 2 flat spots on the stock 1bbl manifold and put 2 more 1bbl carbs on it. You're going to need 2 more ammo cans. Is the factory manifold aluminum? Then you are 2 steps ahead of me. The Ford 200 manifold is cast with the head, and therefore cast iron.

One of my next set ups will be 3 side draft bike carbs.

I am jealous.

Very cool and the test blower is worth more than the Gremlin.

True.  But the Carb Box is leaking boost in a couple places, and the 1 bbl Carter's bore is so small the pressure drop is significant, and the motor is not seeing anywhere near the boost we are making.   We made the decision before NY to leave the known boost leaks as AFR had achieved a safe level of equilibrium that was good for endurance racing.   When we tighten up the intake tract and enclosure, and swap the carb for a 2bbl motorcraft or holley (junkyard of course), and advance the timing beyond our ultra conservative tune, we anticipate more zoom zoom.  Or maybe boom boom.

One vote for Holley 4412, which is a light years better carb than a Rochester, and usually cheaper, and easier to find in working order. They both flow the same CFM, and the 4412 is much more tuneable. Plus you can find more adapters and base plates to mount them.
The Motorcraft 2100 or Autolite 2100 is a great carb, but I have never found jets for them. That means you have to solder and drill to jet. Plus the 2100 is only 380 CFM or so. The Motorcraft has a kick ass AFR curve, though. Super flat across the board. I like the way that carb works, but tuning it at the track proved difficult.
You can find the 4412 in junkyards, but they are also plentiful at swapmeets, especially circletrack specific ones. I have never pais more than $50 for one.