Outboard Jet RPM question.

[Pont]

A buddy of mine told me to check the RPM in my owners manual for my full throtle operating rpm. Well, I did and it is rated for 5500 to 6000 rpm (2007 60 horse Evinrude e-tec) at full throtle operating range. Well, that is with an acutal lower unit and prop. Anyway, I am only getting, with my jet lower unit about 4700rpm. Anyone know if you loose that much rpm when going to a jet? I am currently running a 3 blade alluminum impeller/auger/screw or whatever everyone calls it in your neck of the woods. Anyway, I was wondering if I got a 4b ladeStainless steel impeller if that would make a difference.

If anyone has any suggestions, thoughts, or places to call or people to email for info I would appreciate it. I just wanna know if it's running like its supposed to.

Thanks
Jeff

 

[Captain Ahab]

I do not have a jet but I do know that you loose a bunch of RPM as compared to a lower unit and prop.

So I guess??? the drop is normal.


Come on - who is a jet drive owner out there?

 

[Waterwings]

...Come on - who is a jet drive owner out there?

Member ibanez has an Alumacraft with a jet outboard on it, but he hasn't been online in quite a while (6 mos?)

 

[Zum]

I think this guy uses a mud buddy...wyodeputy and diesn't codeman have a jet?

 

[Codeman]

I have a jet but I am yet to get it wet. Best place to ask is here.

https://forums.riversmallies.com/forums/index.php?act=idx

You will have to become a member and wait to be accepted (shouldn't take long) before you can even get in the motorized forum. There more than a few guys in there that can help you. I'm a newbie too as far as the jets go. I hope mine is in the water in the next week or 2.

 

[willfishforfood]

You have to remember a prop is open to the world and the inpeller is in side a housing and is forcing water through a smaller hole. I have found that I have a RPM drop when I put a jet on my 50 Yamaha. I was told that the stainless impellers don't help the small outboards but 150 and bigger.
WFFF

 

[Pont]

Thanks fellas. I'll check that river smallies forum and see if they can get me specifics on that.

 

[Pont]

Thanks fellas. I'll check that river smallies forum and see if they can get me specifics on that.