Well, my search for a builder is over... HOORAY 288!

[rattler]

 

[rattler]

 

[jakethesnake]

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What’s goin on here snake ? You hacking on one. The reflection trips me up sone

 

[RIDE-RED 350r]

Dang man! You REALLY opened up that intake!

I was concerned about the intake mounting bolt holes, I wanted to make sure I didn't take too much material out of there compromising their strength. I see I was probably over-thinking things?

You guys are probably doubting I even did this 288 at this point. Circumstances beyond my control prevented me from getting some demonstration vids again today. It snowed here most of the day so I had to stay late at work plowing and I didn't get done in time.. We're planning to try again tomorrow. Sorry fellas.

 

[XP_Slinger]

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That intake is wildly different from where it started. Very nice work Mike. Have you ever tried giving it more time without going that wide? Just curious how it would respond considering the intake block is relatively small compared to that port window. Justa thinkin, I believe Joe kept his intake narrower but lowered it quite a bit. We’ll see how she runs tomorrow if the weather doesn’t keep him out plowing.

 

[RIDE-RED 350r]

Yep, I lowered the floor by 10 degrees.. It was quite a distance. It sets at 79 degrees BTDC, maybe a shade under. Kinda wonder if I should have widened it some and lowered it less than I did???

 

[rattler]

That intake is wildly different from where it started. Very nice work Mike. Have you ever tried giving it more time without going that wide? Just curious how it would respond considering the intake block is relatively small compared to that port window. Justa thinkin, I believe Joe kept his intake narrower but lowered it quite a bit. We’ll see how she runs tomorrow if the weather doesn’t keep him out plowing.

I have wondered just how one would run with the band cut and base trimmed I am going to try this some day. This had some funky # I still got alot of grinding to do.

 

[RIDE-RED 350r]

What brand cylinder is it?

 

[rattler]

What’s goin on here snake ? You hacking on one. The reflection trips me up sone

That one is a 281 I been working on for a Friend still got 2 more to do.

 

[rattler]

Yep, I lowered the floor by 10 degrees.. It was quite a distance. It sets at 79 degrees BTDC, maybe a shade under. Kinda wonder if I should have widened it some and lowered it less than I did???

Nope you went the right way Joe this one with gasket was 72* it is now 79.5

 

[rattler]

What brand cylinder is it?

K&S

 

[rattler]

Dang man! You REALLY opened up that intake!

I was concerned about the intake mounting bolt holes, I wanted to make sure I didn't take too much material out of there compromising their strength. I see I was probably over-thinking things?

You guys are probably doubting I even did this 288 at this point. Circumstances beyond my control prevented me from getting some demonstration vids again today. It snowed here most of the day so I had to stay late at work plowing and I didn't get done in time.. We're planning to try again tomorrow. Sorry fellas.

You did good Joe just keep it up you can get more out of a Mahle

 

[jakethesnake]

K&S

Do they use the same cylinder as the early 288s?

 

[RIDE-RED 350r]

Nope you went the right way Joe this one with gasket was 72* it is now 79.5

Well it just got me to thinking about case compression and how much is too much to lower the floor. I did this one without the BG so you ground out even more than I did! This KS timed at 69 deg without the BG!! I can see it being as high as 67 with the gasket... Pretty sure my 242 is right around that number... Was surprised to see the intake so high on that cylinder. Checked it three times myself and Josh double checked too.

I figured, my 394 is a beast with the intake at 80 deg, (but that's not the only trick in it's bag) so I thought the 288 being the same stroke should be well served with close to that same mark.

 

[rattler]

Well it just got me to thinking about case compression and how much is too much to lower the floor. I did this one without the BG so you ground out even more than I did!

I figured, my 394 is a beast with the intake at 80 deg, (but that's not the only trick in it's bag) so I thought the 288 being the same stroke should be well served with close to that same mark.

I did one that turned out 81 and it is stout it got some more stuff going on inside it too T Roller runs it now.

 

[rattler]

Do they use the same cylinder as the early 288s?

They had K&S on them first then Mahle now the cylinders are K&S with a decomp.

 

[XP_Slinger]

Yep, I lowered the floor by 10 degrees.. It was quite a distance. It sets at 79 degrees BTDC, maybe a shade under. Kinda wonder if I should have widened it some and lowered it less than I did???

I think its gonna run just fine Joe. Your ports are dialed in way better than the stock timing on that cylinder now. Don’t forget about the rest of the 12 piece band

 

[rattler]

 

[T.Roller]

I did one that turned out 81 and it is stout it got some more stuff going on inside it too T Roller runs it now.

When I can keep a rope in it, it's a running sob for sure.

 

[XP_Slinger]

Well at long last we got some videos just before Joe got called in to work to plow. Log is frozen sugar maple, a little over 20” the way it was laying for the cuts. Would’ve been the whole bar plus some more if I would’ve rolled it but that’s a heavy SOB so this is what we got. LOL! I’ll tell you up front the videos show the times to be almost identical between Joe’s saw and mine, but listen to the rpm when I dog them in...Joe’s stays higher and it feels like it pulls better. Both saws running an 8 pin rim with the same 24” bar and full comp chain. I bet Joe’s pulls a long bar better than mine.

Joe’s saw:

My saw: