performance upgrades and smoke

[Snow man]

Ted J,I read your post on the Kohler V twins,I'm not trying to be a smart guy,but If you talking about the Command series,V twins,I must correct you. The 18-25 hp engines have many differences other than governor settings. First,maximum governed speed on all Commands V-twins is 3750 RPM no load,no matter what hp. I have the 25hp,my buddy has the 20,there is a big torque difference. This is because the 18-22 hp "small block" commands are 624cc,they are almost the same,with spark ,and carb differences. The 23hp is 674cc,the difference is a larger bore,the 25,and 26EFI are 725cc,with an even larger bore. This is why they are stronger,not the governor settings as you posted. There are other differences,like built in oil cooling on 22,23,25,and 26EFI,to keep oil temps down. The 23. 25,and 26EFI also have a much bigger,high capacity mufler,that is quiter,yet flows more. If you have any ideas on how to get a little more power out of my 25,and keep it under 3800,let me know what i need to get and how much $$ you need.

 

[Ted Jannetty]

You obviously know a lot more about Kohler engines than I do.

I was refering to the ones used in Craftsman tractors.

Mine was governed at 2400 rpms and rated at 22 hp.

I read and compared the specification tags compared to a 25 hp engine rated at 25 hp 3200 rpm.

Everything else was Identical part for part.

 

[Steve St.Laurent]

Summit, Stefan was talking about automatic '01's & '02's needing a new turbo. With your manual truck you have the same turbo as the earlier trucks, the auto's have an HY35 with a 9cm housing instead of the HX35-12 like yours.

 

[Stefan Kondolay]

Steve's right sorry for not saying that.

 

[Snow man]

Ted,my kohler is on a Dixie chopper ,commercial ZTR mower,I havent ever owned a garden tractor,but the ones at home depot use the same command series engine that i have and use. Like I said,you may have been referring to a different engine series,although i didnt know Kohler made ,homeowner type engines too. On my Dixie,kohler allows up to 3850 RPM's due to additional cooling,and filteration that Dixie chopper puts on them,the extra RPM's dont seem to make it more powerful,the deck really pulls a lot of air,and HP at 3850 rpms.