Reply With QuoteSounds like an interesting project. What type of hull is this jet you're going to drop it in? Any pics of the boat right now? Sure you don't want to put this motor in a v-drive?!
Here we Go! Project 572,I have a 572 BB chev,1471 littlefield, with Iron merlin heads and roller cam.Will dyno test and try to eek out the last pony on pump gas and availilable race fuel(109.5)Turbo Blue.It is going to come together in the next couple months so bear with me.Gives us northern boys something to look forward to this winter.I plan on installing this engine in my 19 ft jet.This will be a carb motor used for lake runs.Comments welcome, especially from Infomaniac and Flattie!
Sounds like an interesting project. What type of hull is this jet you're going to drop it in? Any pics of the boat right now? Sure you don't want to put this motor in a v-drive?!
About time Chris! If you need any help just drop a line we need more boats at the sandbar
Sounds like a great motor wink That combo will "definatly" give you some additional ponys
I wish I had one of those !!
A local Okie once told me this "Your Engine Is Your Boat"
It will be the longest winter you ever spent waiting to run that thing.
Oh Yea: At the dyno, Make them run the exhaust that you are going to use on the boat. They can do it. I have done it myself. Even with water. Dyno headers might alter the power range of the engine.
The numbers you get: Do not be concerned about getting the highest number. It is much more important to pay attention to what range the engine makes it's best power. You must make sure the engine runs in that range when it gets back in the boat.
[ October 29, 2002, 08:29 AM: Message edited by: Infomaniac ]
I am putting the engine in a centurion Tunnel similar to a daytona.I have two sets of headers to use, both are bassets with water injection. I have a set with 2+1/4 inch primary into a 4" collector and the second set is 2+1/2" primary into a 4.5" collector"Blower headers".If I use the water injection will this screw up the oxygen sensor? The smaller set of pipes heve been severely blued from a previous dyno session but the blower headers are in still in fair shape.I am looking at getting some photos and maybe a video clip.Flattie, Maybe you could help me in this area. If I schedule the dyno session to a time when you're off of work, would you be interested?The Shop is down by Oshkosh.A v-drive may be in my future but I would like to make this work first.I don't have a way to post any of the current photos of the boat.I will try to do this as well.Thanks, Chris
That big engine needs those big headers. Oxygen sensor on the dyno?
Yes,The Dyno had a oxygen probe plugged into the exhaust pipes on each bank after the header collector.I think he used them for air/fuel ratio tuning.The sensors have to be replaced frequently due to the use of leaded race fuels. I do not know if they are wide band or narrow. I will try to include alot of information on the dyno itself.I did help assemble the dyno a few years back.It has a lot of probes. One of the most expensive little things was a fitting that has an impeller inside that measured fuel flow rate.It is a nice setup and I did learn some things during assembly.I participated in one session on a pump gas 572 single carb motor that made 696 H.P.@ 5800 rpm.We went through 55 gallons of fuel.The hardest thing I am facing is getting the fuel system and vacuum pump systems set up prior to the dyno run.I do not have screw in air bleeds on these carbs and am gong to take them to a local carb guru for this.This will assist the engine builder in tuning,not having to drill them out.I did decide to go with the jesel shaft rocker setup.I also had him coat the piston skirts and crowns.I am going to use copper head gaskets with composite seals.I think we had a large post on this subject once before. I will try to post a pic of these as well.
I was going to say, the flow rater will tell you about your rich lean condition. Lbs of fuel per Brake horsepower per hour. I used one but was a manual deal with a float in a graduated scale tube.
I am interested in those gaskets. Fill me in
Oooooh intresting I won't miss the the dyno session for the world. I will bring my camera maybe even buy one those mpeg camcorders to do some video of this
Rick
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