359 port timing numbers

[ELECT6845]

You would gain more torque if you had a way to cut the base and chamber. I really think the ported 359 comes alive once compression goes over 185. Use the port timing numbers mentioned above and you will still get a good running saw. Also, if no one has mentioned it, loose the plastic clamp on the intake and replace it with a steel one.

 

[jonsered 535]

Thanks elect
Another question I have is do I polish the exhaust I have small buffers and also have flitz polish???

 

[huskihl]

Thanks elect
Another question I have is do I polish the exhaust I have small buffers and also have flitz polish???

I use a fine sanding drum on a Dremel with lots of wd40. I'd do that and then the flitz would really bring out the shine.

 

[jonsered 535]

I have the exhaust at 102 now.
I'm at the intake now and will say that it's a lot harder to get in there being smaller and the angle you have to look at it.

 

[David Young]

make sure you trim down the transfer screws before putting them back in. raise the transfers don't widen them at all. most important make sure they open precisely at the same time.
This is more important then a couple of degrees of duration. 26 squish will be good don't worry, also you don't have to go crazy wide on the in a ex ports 65% is plenty.

make sure the cat is out of the muffler or at least defeated.

lets see some vid already.

david

 

[jonsered 535]

The 4 screws that hold the covers on you mean???
I am just taking 1/8" off of the intake and exhaust sides for the width is it enough????
Just emery cothed sanded for now until I finish it

 

[David Young]

I think I'm that saw you will be ok but 3/16 could be too much. Next saw lets measure and calculate.

 

[David Young]

Yes the transfer cover screws clip a thread off each maybe more

 

[jonsered 535]

i think I have a problem when squaring the intake I never heard anyone say about the piston skirt taper in and I never thought about it till now I might have screwed it what do you think

 

[mdavlee]

How many degrees is it open?

 

[David Young]

You are right It will wear funny over time.

 

[jonsered 535]

How many degrees is it open?

How many degrees is it open?

80 at the bottom of the piston on the flat part

 

[jonsered 535]

how will it opening early or like that affect the saw now or is it shaged now

 

[David Young]

It'll run fine but wear premature

 

[jonsered 535]

It'll run fine but wear premature

Will it affect torque or power???

 

[mdavlee]

80 at the bottom of the piston on the flat part

I meant how many degrees is that little corner open? You could devcon the intake and fix that.

 

[jonsered 535]

I wi

I meant how many degrees is that little corner open? You could devcon the intake and fix that.

I will check the degree on it
not sure if I can get my hands on devcon but liquid steel at cana

I meant how many degrees is that little corner open? You could devcon the intake and fix that.

83.5* I don't think I can get my hands on devcon but Would Liquid Steel work I could even put solder there with a torch I think

 

[jonsered 535]

83.5* I don't think I can get my hands on devcon but Would Liquid Steel work I could even put solder there with a torch I think

 

[jonsered 535]

83.5* I don't think I can get my hands on devcon but Would Liquid Steel work I could even put solder there with a torch I think

I tried the solder on a piece of aluminum scrap I had and it won't work

 

[David Young]

Will it affect torque or power???

I don't think you would notice the power.
You could possibly cut the piston even across then fill with de con to get you desired number. 75atdc or 150 duration may be enough to fill the jug.