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#31
08-30-2012, 07:35 PM
 puppypaws LawnSite Fanatic Join Date: Jul 2004 Location: Marshville,NC 28103 Posts: 6,579
Quote:
 Originally Posted by Realslowww just how much gas does the 37 carb model eat compared to the 28 efi
I measured the fuel usage on the 28 efi by filling the tank to the bottom of the neck. I then took a wooden disposable skewer stick, the type you cook Shish Kabobs on, stuck the stick straight up to the bottom of the tank, this left a gas line mark on the stick. I then took a black marker and permanently marked the exact level of gas in the tank. I ran the mower in what I would call medium light cutting conditions for 1 hr. timed exactly. I then took a 32 oz. measuring cup and filled the tank back to the marked line on the stick, this took exactly 119 oz., this calculates to the mower using .93 gallons of fuel in that 1 hr. it was cutting. I have not checked the 37, but feel assured it will be in the 1.75 gph range, quite a difference for only 12% more productivity.

The procedure I used to calculate usage is more accurate, most people would not go to this amount of trouble, but I like numbers to be exact if I check them.
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#32
08-30-2012, 08:31 PM
 Realslowww LawnSite Senior Member Join Date: Jul 2008 Location: Melrose FL Posts: 739
Quote:
 Originally Posted by puppypaws I measured the fuel usage on the 28 efi by filling the tank to the bottom of the neck. I then took a wooden disposable skewer stick, the type you cook Shish Kabobs on, stuck the stick straight up to the bottom of the tank, this left a gas line mark on the stick. I then took a black marker and permanently marked the exact level of gas in the tank. I ran the mower in what I would call medium light cutting conditions for 1 hr. timed exactly. I then took a 32 oz. measuring cup and filled the tank back to the marked line on the stick, this took exactly 119 oz., this calculates to the mower using .93 gallons of fuel in that 1 hr. it was cutting. I have not checked the 37, but feel assured it will be in the 1.75 gph range, quite a difference for only 12% more productivity. The procedure I used to calculate usage is more accurate, most people would not go to this amount of trouble, but I like numbers to be exact if I check them.
Your 66 in a 72 with a 28 or 30 EFI is really the perfect setup for you cost wise, the local airport uses 72 with 28 EFI's and loves them.

Mine is a 72 30 carb which is about the same power as a 28 EFI maybe just a touch more and it is fine as long as you do not try to cut really over grown stuff,.

For the cutting I do I need alot more motor. I could use the 37 EFI and probably some in order to get my speed up for some jobs I do.
#33
08-31-2012, 06:54 AM
 puppypaws LawnSite Fanatic Join Date: Jul 2004 Location: Marshville,NC 28103 Posts: 6,579
Quote:
 Originally Posted by Realslowww Your 66 in a 72 with a 28 or 30 EFI is really the perfect setup for you cost wise, the local airport uses 72 with 28 EFI's and loves them. Mine is a 72 30 carb which is about the same power as a 28 EFI maybe just a touch more and it is fine as long as you do not try to cut really over grown stuff,. For the cutting I do I need alot more motor. I could use the 37 EFI and probably some in order to get my speed up for some jobs I do.
The thick moisture laden crabgrass (that is getting wetter every day) I'm cutting this year would stop a 72", 30 hp Super Z dead in its tracks. I'm talking about if you tried to run over 9 mph there are places it could stall the engine. I've already had to pull back on the 35 hp 72 to keep the rpms from falling enough to affect the decks ability to function properly, and this engine is a great deal more powerful than a 30 hp Kohler. I would say without reservation my 28 efi because of reacting to load so much faster is as strong as the 30 Kohler, and I could stop it stone cold dead in the grass I'm having to cut this year.

There is a great deal of difference in cutting the grasses that grow in Florida versus the wet thick junk we are dealing with this year. I normally never slow down this time of year, but the wet conditions have made it totally different this time around.

I am guessing a mower needs 6 to 8 more hp to hold up its operating rpms when dealing with crabgrass that never dries during any part of the day; versus cutting the same grass in a dry weather scenario. I know without doubt the 37 Kawasaki which is fuel injected would respond much better on this new Super Z than the 35 which comes on my mower.
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#34
08-31-2012, 06:59 AM
 Realslowww LawnSite Senior Member Join Date: Jul 2008 Location: Melrose FL Posts: 739
i hear alot of people say go Vangaurd but the local dealer said Kaws are better?
#35
08-31-2012, 07:20 AM
 puppypaws LawnSite Fanatic Join Date: Jul 2004 Location: Marshville,NC 28103 Posts: 6,579
Quote:
 Originally Posted by Realslowww i hear alot of people say go Vangaurd but the local dealer said Kaws are better?
When you are a dealer, you always push what you make the most money from. You pay a considerable amount more money (or at least always have) to buy the Kawasaki name. Vanguard builds as good a carburetor, big block engine as there is on the market. The only thing I could possible give Kawasaki as better than Vanguard is they do offer fuel injection, of which Vanguard is working at a feverish pace to implement.

As many questions as you ask, and comments you throw out to get opinions, I would think you should have acquired knowledge of anything you wish to know by this point in time.
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#36
08-31-2012, 12:58 PM
 Realslowww LawnSite Senior Member Join Date: Jul 2008 Location: Melrose FL Posts: 739
the 35 Vangaurds i have priced are about the same as a Kaw.

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