044/46 Hybrid Build

[blsnelling]

In the last cuts, it was at 15k. These were the first cuts, so I wanted to keep it tame.

The saw like rpm like no other I’ve built. I see what people talk about. Spins faster than an 044, less low end than an 046. A 7 pin likely woulda been a better match for the 28.

With the bar buried like, only the strongest 90cc saws are going to be faster with an 8-pin.

Have you ever tried 15*-17* blowdown in one of these? How about more intake?

 

[huskyboy]

@drf256 Out of curiosity is this saw running a 044 carb or a 046 one?

 

[Duane(Pa)]

Have you ever tried 15*-17* blowdown in one of these? How about more intake?

Pretty sure he said it's the first one he has ever attempted.

 

[drf256]

With the bar buried like, only the strongest 90cc saws are going to be faster with an 8-pin.

Have you ever tried 15*-17* blowdown in one of these? How about more intake?

No

Smaller case made me want lower (physically) transfers. That is what Blair said the motocross guys discovered in the 70's.

On a 460, I like 15* of BD.

After discussions with @Canadian farm boy, we found that higher number tranfers kept the torque up and the rpm's a bit lower with the hybrids.

This was my first hybrid build ever, but alot of the R&D CFB did was during discussions we had. He deserves the credit for that, I just rode on his shoulders.

 

[Lightning Performance]

With the bar buried like, only the strongest 90cc saws are going to be faster with an 8-pin.

Have you ever tried 15*-17* blowdown in one of these? How about more intake?

You must have racing saws on your brain all the time. It's a work sam man.

 

[Deets066]

79-81 is where I shoot for on intake, but 78 certainly works. I've built a few, never tried short BD. Not sayin it doesn't work, just haven't tried

 

[drf256]

@drf256 Out of curiosity is this saw running a 044 carb or a 046 one?

HD11

 

[MustangMike]

Mason, the 440 and 460 run the same carb, the HD-11 is the 044 Artic, which is jetted a bit richer and seems to be the best one for the hybrids.

Brad, I know you have done a lot of hybrids, what #s do you like?

 

[huskyboy]

Mason, the 440 and 460 run the same carb, the HD-11 is the 044 Artic, which is jetted a bit richer and seems to be the best one for the hybrids.

Brad, I know you have done a lot of hybrids, what #s do you like?

Interesting, so would the zama 044 carb be restrictive on a hybrid? Carburetors seem to play a big part of saw performance.

 

[MustangMike]

I like the ZAMA, but most people seem to prefer the Wallbro. I think they are the same size, but most of the ZAMA were on early saws, before they went to the snorkel, so they don't have one.

I don't have specs comparing the ZAMA and Walbro jetting. My 044 came with a ZAMA, but when it recently needed a rebuild I put the HD-11 on it instead. Does not make any difference on that saw, so if I need the HD-11 for another saw, I'll rebuild the ZAMA and put it back on.

 

[RI Chevy]

Does Tillotson make one to fit?

 

[huskyboy]

I like the ZAMA, but most people seem to prefer the Wallbro. I think they are the same size, but most of the ZAMA were on early saws, before they went to the snorkel, so they don't have one.

I don't have specs comparing the ZAMA and Walbro jetting. My 044 came with a ZAMA, but when it recently needed a rebuild I put the HD-11 on it instead. Does not make any difference on that saw, so if I need the HD-11 for another saw, I'll rebuild the ZAMA and put it back on.

Very interesting mine must’ve been one of the last with the zama as it had a snorkel. I liked that carb. Easy to put a kit in and cheap for oem kit. Seemed to run well on the saw.

 

[blsnelling]

You must have racing saws on your brain all the time. It's a work sam man.

No, not at all. Don't knock it until you try it.

 

[RI Chevy]

You shoulda never sold it Mason! [emoji52]

 

[blsnelling]

Brad, I know you have done a lot of hybrids, what #s do you like?

15*-17* of blowdown and 85* on the intake. It works. Ask anyone that's run my hybrid. I'm not knock anyone elses build style, but these numbers work extremely well for me.

 

[huskyboy]

15*-17* of blowdown and 85* on the intake. It works. Ask anyone that's run my hybrid. I'm not knock anyone elses build style, but these numbers work extremely well for me.

You seem to have ported a few 461s. How do they compare to the hybrid?

 

[blsnelling]

You seem to have ported a few 461s. How do they compare to the hybrid?

You'll get a few more RPMs out of the hybrid and little more torque out of the 461. I have videos of both in the same wood. I don't want to take over this thread though. That's not my intent.

 

[Deets066]

You'll get a few more RPMs out of the hybrid and little more torque out of the 461. I have videos of both in the same wood. I don't want to take over this thread though. That's not my intent.

I have both as well Brad, pretty much what I gathered from it.

One of these days I'm gunna compare em with 36" bars

 

[RI Chevy]

Might as well include a good ported 460 in that mix as well.

 

[Deets066]

Might as well include a good ported 460 in that mix as well.

I don't see the need