For your own info or re you gonna sell engines or combos or ???? Just wondering so I can see where your coming from. Just wondering if I missed this somewhere.

Well, we could be polite and say its just for my own info or in retrospect I guess we could call it my own stupidity.

Big pans, big kickouts. But on opposite sides of each engine. I'm told this can be seen on a dyno. True? BS? Who knows, just another variable

Again, just asking so I can be on same train of thinking, or at least try to.

I know a few regular pocket people people that have gone on to buy a dyno and build a shop because of getting that involved with 'quests.'

Schit, I have an engine builder customer that has a shop, had a regular pocket customer buy a dyno to put it in the builders shop. LOL.

Again, I didn't know if you where going racing , or being like some of us looking for a few more or a lot more power or just wanted to find a few more answers. I've seen a lot of different scenarious.

If I didn't own a boat I'd have a great time building engines! I'm not racing or engine building, just looking for well thought out reliable power with the parts I already had. I have a pretty different view of practicality and sometimes over analyze which is a bad combination at times. Next time around I'm sending all my money to Innovation Marine and watching HBO until the truck pulls up. Edit- funny you mention the dyno. I did find one I wanted to buy to put in someone else's shop, but I moved too late on it.

It's just doing what we do when given the opportunity. keep up the good work and great of you to share. This kind of info is great and helpful to others as well as broadening your own mind.

SB take a Valium. Just kidding bro.

Oh schit. Thought you where serious so I took a few of them in case.

Ninja some over this way.

Clear your inbox SB

Done. But could only get rid of 2.

SB
sorry to butt in here but your PM is full.

I saw on a year old post of yours about reversion, you mentioned inserting a ring on the bottom of exhaust either in the inner dry exhaust pipe or after the water mixes. You mentioned a "wave" shaped half ring with the wave "break" pointing toward the rear.

can you explain a little more so i can try one. this reversion is tough to stop.

How tall is this ring? so as not to restrict exhaust flow. Are you talking about something that looks like a half of what a turbulator would look like, except just one half welded in to the bottom of the collector?

I am putting on 3" alum extensions on the Eddie Marine standard elbows i just purchased and may need to add this "dam" type ring you described.

thanks.
Kurt

Assuming the engines both rotate the same direction I could theoretically see it making a difference.

Yes, standard rotation. So given the slight inconsistency of pulls from day to day and in my case possibly because of the pans themselves it's sometimes tough to know where to draw the line and say good enough. Wait! I know, I'll just swap the pans on the dyno as well. Right

The more you kick the right side of a pan out the more power the motor will make. The pan in the pick is a very poor example of a horsepower pan. The large capacity does nothing for power unless you run it low on oil.

I had very tight clearances in the boat these pans were intended for. It was the only way to get decent capacity. They aren't necessary on this boat, but I'm not changing them out at this point.

Is that why they always run better right before they grenade? Lol

were they dyno'd with accessorys and marine exhaust? or stripped dyno trim?

Yeah. You really don't need a dipstick. As soon as it starts running good add oil.

I'll answer this for BCK, since he's probably still in bed with his woobie. The engines were stripped down in dyno trim, not with marine exhaust or accessories.

Were you guys talking about the Wilson 4 hole spacers??

He may have me blocked still, we got into it when he said I had garbage engines, yet mine were full boat trim with marine exhaust and accessorys, designed by the same person..

Thanks jonesy. When the engines go back on the dyno they will have full accessories. These runs were just to give me a direction for parts selection. They are going back on for final tuning. Then we will see how much of a difference accessories and marine headers make.

All my 4150 intake testing was done with a plain open spacer based on my previous dyno experience with this combo. All the 4500 intake spacers were the HVH type based on the builders experience. I would like to try something like I quoted in post # 18 when they go back on, but funds and/ or Steve telling me to get this over with will likely prevent that from happening.

Thanks for all the runs and info. Very interesting.