Outboard Exhaust Tuning - Who Did It Best?

**powerabout** · 09-07-2019, 06:49 PM

Originally Posted by Chaz

Power , that looks like the motor I had in a pair of Model A frame rails to run around on the orange groves when i was a kid .. but that was almost 50 years ago ..

Three into one .. 3.0L , Hummppff .. who would do sumptin krazy like dat ..

thats it close to perfect maybe a big long?

**Chaz** · 09-07-2019, 09:02 PM

With the ports facing one way and the pipes facing the other .. it looks like " hearding cats "

**powerabout** · 09-07-2019, 09:14 PM

Originally Posted by Chaz

With the ports facing one way and the pipes facing the other .. it looks like " hearding cats "

Its relying on the chair too

**Chaz** · 09-07-2019, 11:01 PM

You got a picture of what you asked for ... with-in hours ...

**FMP** · 09-12-2019, 07:05 PM

YOU see these men had at least one dyno when they built this version of an open chest L4. If it didn't do what they wanted it wouldn't have made to production. They moved the exit to have more equal length scavenging, also increased the short pairing runs to more equal the long pair. Another interesting variation on the L4 common chest.

**Chaz** · 09-12-2019, 11:18 PM

Did you think that playing Christmas bells, was going to make me ... less honest

Force ... I think they copied me ...

How do you know what tools they had , or didn't have to work with .. ???
I'll tell you this much, the guy who put the large radius deflectors in the runners, knows his way around air manipulation ..

I made some port to port "ski-slopes" ( with Monty's help on the first set) prob ten years ago now ..

PhotoPhukit really thinks I would go out of my way to join , because they do the above to our pictures ..

Sad , bunch of low~lifes

Ifin I was gonna do a "lil 4 banger" that no~body else wanted ..

I'd put big molly head studs in the block , MLS head gaskets made for it .
Trim the back of this out ...

So a new baby "Bullseye billet Batmowheel" would fit in the hole ..

And run it off of a MS-3 Ultimate. They had one at the bottom of an aquarium, wires hangin out .. running a handfull of coils and injectors at the PRI show. Didn't hurt the fish or the box ...

Chaz = thinkin FuMp's West Bend would be a "Wet-Bend" after it got roosted ..

**FMP** · 09-13-2019, 07:59 AM

What's the ° pin spacing stagger on the fishing motor between 1-5 , 2-6, 3-7 , 4-8 as firing pairs? They're not even.

U.S. Patent Office ..

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It's likely the ° staggered between firing pairs is to insure that both four cylinder systems have their pressure wave to tuner exhaust end arrive at the same moment to produce a sum of both.

**Chaz** · 09-13-2019, 09:29 AM

Originally Posted by FMP

What's the ° pin spacing stagger on the fishing motor between 1-5 , 2-6, 3-7 , 4-8 as firing pairs? They're not even.

Well FuMPy, I hate to be the bearer of bad news. But a 4 cylinder engine only has 4 rod journals ... Once you let that soak in, we will have a test on how many pistons a 4 cylinder engine has ... class dismissed.

U.S. Patent Office ..

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I must say, that's one of you more intelligent posts .. Indent, font, color, left, quote.

It's likely the ° staggered between firing pairs is to insure that both four cylinder systems have their pressure wave to tuner exhaust end arrive at the same moment to produce a sum of both.

Since people put hairdriers on everything from Harleys to V-16's .. file your theory somewhere between font and color ...

Figured your gonna get soaked a lot ... you'll need a change of jackets ...