Fri Feb 27, 2009 8:09 pm
I noticed my 3rd int154 cub loboy has the orginal IH carbuerator. My two other int154's and my 52 fcub have the zenith carbs. Is the IH carb any better than the zenith carbs or visa versa?
Fri Feb 27, 2009 8:26 pm
I wouldn't say any better, or any worse. The 154 IH carb has a larger throat and bigger jets than the older FCub carbs, but I don't think it is quite a big as the Zenith. Both of my 154's have the IH carb.
Fri Feb 27, 2009 9:01 pm
I had the original IH carb on my 154 and had to replace it, I put a zenith on and feel it gave me a little more power, but that could just be because of the new carb. I do know that the zenith that I purchased is a bit larger and does have a bigger bore, but if the manifold doesn't match the carb it woun't make a difference.
Sat Feb 28, 2009 12:32 pm
With my first int154 cub the PO just rebuilt the engine and he did the 184/185 hp upgrade. I was told the zenith carb is new, it also has the high compression pistons. He also told me there is only 2 years on it since the rebuild and its been sitting most of the time since the PO passed away. With the 18hp upgrade thats 33 1/3rd more power over my fcub. My rebuilt fcub motor seems to be low and slow power wise but its all torque. I was pulling out the roots from the bushes i just cut with the fcub and it yanked then right out with the cultivators. On the other hand i was using the sub soiler(ripper tooth) I made for my 3pt on my 154 and i was pulling out the surface rocks that the frost pushes up with no problem too. The sub soiler would just roll then up and out.
I may swap out the IH carb on my 154 to my fcub.
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