Bridge ports

[SquareFile]

And......go

Thansk.

 

[Adirondackstihl]

 

[Deets066]

I just wing it.

 

[Redfin]

Wouldnt it technically be "undermining" ports?

 

[Carbine]

So a dyslexic man walks into a bra..

 

[jmssaws]

I've used them alot in 660's and I believe it's a gain.

 

[Chris Zautner]

only if we had a dyno to show facts and to end bickering

 

[Deets066]

I've used them alot in 660's and I believe it's a gain.

Have you scientifically tested them

 

[Deets066]

only if we had a dyno to show facts and to end bickering

I don't mind a little bickering as long as it don't get carried away. Most of the time it's all in good fun

 

[Deets066]

Dyno would be sweet though

 

[jmssaws]

Have you scientifically tested them

Define scientifically

 

[SquareFile]

I've used them alot in 660's and I believe it's a gain.

Seat of the pants feel?

 

[Deets066]

Define scientifically

It starts with lots of beer drinkin

 

[jmssaws]

Seat of the pants feel?

Yes, I did one time try one without and with and it gained but I have stopped using them because I mostly used fingers now.

 

[jmssaws]

It starts with lots of beer drinkin

Then yes I scientifically tested them

 

[SquareFile]

So a dyslexic man walks into a bra..

arb a otni sklaw nam cixelsyd a oS

Wuts yer point?

 

[Carbine]

I copied a good freaking joke off da internetz and you ruin it with this bridgeport witchery.

 

[dbittle]

Have you scientifically tested them

You have to record the sound on a cellphone and run it through a spectrum analyzer. Because, you know, using a tach is just too complicated.

 

[drf256]

Great post.

I've used them and the saws have run great, but I haven't had the time to port two jugs, side by side, and test the difference.

The only saws I've done in sequence with/without was a pair of 026. But the one with the bridges had slightly different transfer timing.

They ran about the same, truth be told.

But smaller cylinder bores have much less effective scavenging area and bridges/fingers don't give the same gain (if there is any) as in larger jugs-most builders agree with that.

We may have a Dyno at the CT GTG. If I can get my arse in gear, I may be able to have a pair of 036 with the same timing and squish cut. I can do the next without the bridges. But...., unless I just swap jugs, there can be slight differences in the muffler outlets, carb jetting, ignition timing, etc, to make it a true test.

All variables would have to be eliminated to test side by side.

 

[Deets066]

The test would have to be done with the same saw. Fully ported but without bridges, would be the first cuts. Then pull the jug add bridges and retest