quad-rotor 565
 

Hi everyone! Im currently building a 565 3.3 quad rotor endurance engine, I and am looking for some advise on a few components.I purchased a new World 111 block with steel caps and am having piston sprayers installed.My question is ,Do you think the scat billet crank is good enough for 6000rpm and 1500hp for up to 1hr wot runs.I was originally thinking on the kryptonite crank,but availability was slim.I also wanted to know if the gun drilled pin oiler carrillo rods would be a good choice over the the standard carrs.I spoke to the scat tec person who was very helpful by the way, and he thought their billet crank would be over kill. Any thoughts would be appreciated.thanx in advance!

Re: quad-rotor 565
 

Is this a joke.

Re: quad-rotor 565
 

Hey, I've got a good crank along with 7 good rods and pistons in my 7.4 MPI which has a minor blemish in #1 cylinder where the piston vanished and..........................oh nevermind. :eek: :D

Re: quad-rotor 565
 

I assure you this is not a joke,but I was concerned about the strength of the rod after it was gun drilled.As for the crank when I spoke to a well known offshore engine builder and racer he told me that the scat stuff would most likely break.

Re: quad-rotor 565
 

oversized big block... 6000 rpm.. 1500 hp... i don't think anything would be overkill with this combination...especially a crank

Don

Re: quad-rotor 565
 

What heads, cam, and boost do you intend to run?

Re: quad-rotor 565
 

Don't forget the 1 hr wfo blast.

Re: quad-rotor 565
 

I will be using the afr 357 cnc or the dart 355cnc,we have previously made 1200hp with a similar set-up but pump gas and hydraulic roller.I will be running 116 and 16+ boost,solid roller ect.I race marathon jet boats and some runs can be upwards of an hour long.Just finishing these races is a real accomplishment.One of competitors runs a Jon Kaase 600 cu ford n/a and is rumored to have 1500 hp this year.I wanted to go with a big cheif head but the whipple manifold is set up for standard port configuration.But I have been told that if set up properly this motor can make 1500hp and make it thru the 500 mile marathon....p.s this motor will be going into a 700lb aluminum hull!

Re: quad-rotor 565
 

Isn't Scat short for "SCATTER"?

Go Callies!

Re: quad-rotor 565
 

and then the rebuild??? :D

Re: quad-rotor 565
 

FYI I was told that scat makes all crowers billet cranks.

Re: quad-rotor 565
 

i thought most scat cranks were forged in china... and machined here...

Don

Re: quad-rotor 565
 

Yes Shaun after dyno tuning and a couple hours testing then 5 hours racing she ready for a tear down.

Re: quad-rotor 565
 

If you don't know the answers to these questions you shouldn't be building this motor. Not just anyone is going to give you the correct answers.
I say run the scat 9000 4.25 crank and the scat 5140 rods no need for overkill with only 1500 HP.

Re: quad-rotor 565
 

\


No. Crower has his on foundry.There not cheap

Re: quad-rotor 565
 

1500 h.p. and a 700 lb aluminum hull :eek: :eek: My main concern would be my own survival not the motors. Good luck with this one.

Re: quad-rotor 565
 

Whitewater,
In the application you describe I doubt there is a crankshaft you could use that would be described as overkill. It will require the necessary budget to be successful. LAE Kryptonite is now Superior Crankshaft. You can direct your technical inquires to Sebastion Franzen. All of the below vendors can deliver custom billet crankshafts to the requirements of your application. I have worked personally with many of them and can assure you the materials and workmanship is of the highest quality. Collectively they produce the majority of cranks for competitors at the top level of motor sports. Any of them can meet your needs for this project. Carrillo is a very good choice for connecting rods.
Bob
L.A. Enterprises (Superior Crankshaft) 949-428-8788 x102 Sebastion Franzen
Bryant Racing 714-535-0509 direct Joe Squires
Moldex 313-561-7676 ask for Whitey
Winberg crankshafts 303-783-2234
http://www.hankthecrank.com/index.htm
http://www.callies.com/
http://www.crower.com/
http://www.holley.com/ Lunati

Re: quad-rotor 565
 

Thank-you RMbuilder ,I have found lots of useful information in previous posts of yours.I would like to try the morel lifters in this engine as this is an erea we have had quite a few problems in the past.Do the morels have a edm or pressure fed oil hole?

Re: quad-rotor 565
 

Gentlemen,
Before everyone gets there panties in a knot over his questions, look at his username. "Whitewater". This guy is a jetboater who races up and down rivers at over 100 mph. This is the style racing you see in the Northwest.
Be a little open minded and be amazed at what these guys do when it comes to racing.
We are here to help, aren't we?
Whitewater, welcome to the board. Can be a little rough at first but if anyone knows rough, it's you. I have always been facinated with your style of boat racing. Are there any websites that gives information on Jetboat River Racing?
Russ

www.riveradventuresltd.com/raceboatpictures.htm

Re: quad-rotor 565
 

Thanks for the welcome Rlw! Here is a couple excellent web sites on white water jet boat racing.www.eagleracing.ca and www.jetboatracing.com .I will be posting my latest race engine for sale on this site,It took so long to finish that when it was done 700hp was not enough power to be competetive in A class.I dont know if a aluminum sbf would work in your bigger boats because lack of torque.But its built to run @ 7000rpm all day long.The price may sound outragous but Im selling it .50c on the dollar.Every peice is brand new less dyno time.

Re: quad-rotor 565
 

Sounds like a little Four Wheelin mixed with boats! That is some wild chit..
http://www.jetboatracing.com/anatomy.htm
Let us know how you make out, a link with some video would be awesome.

Re: quad-rotor 565
 

Whitewater,
Welcome to the board! I have been to your site and seen some video, very interesting. Can you post a link to the engine rules for your class? You will find this board to be a great resource with engine builders and component suppliers that are the best in the business, most of whom are more than willing to help.
Bob

Re: quad-rotor 565
 

Spraying oil on the piston: I've heard of this before where the piston needs cooling. Is this ever used in offshore racing or poker run engines? Is it done to keep ring lands from collapsing; does it have any value in keeping detonation at bay?

Whitewater: In the water conditions you encounter, how do you maintain good flow of water to engine and intercooler?

Re: quad-rotor 565
 

Tomcat, This is the first engine of mine that will have the piston sprayers,but the fellow that is installing them swears by it on endurance engines.He is the guy with the 1200hp quad rotor.He was saying that he has pulled pistons from a merc 900 and they had lots of color on the underside and when he tore down the quad rotor with the sprayers the pistons looked like they just came out of the box.It sold me because all my pistons are burnt after a marathon.As for the water we just tap of the pressure side of the pump then install one of mercs pressure relief valves and this keeps the block pressure right at 15lbs at wot.I do replace the spring that comes with the unit with a crane cams checker spring and it works perfect.I bought mine at bam marine but the prices this year have almost tripled.Dam merc.

Re: quad-rotor 565
 

Tomcat,
Here is a link to an article about its use in Cup racing. Ferrari, Porsche, Merc, and BMW have been utilizing this for years in endurance applications. shoot me an email if you need more info.
Bob
http://www.circletrack.com/techarticles/20338/

Re: quad-rotor 565
 

I agree with Bob I actually tried to pm last night basically word for word what Bobs respond is with 20 years of modifying repairing and balancing crankshafts I can tell you there is no better heat treating any where then LA Enterprise Crower and Hank The Crank Bryant or Moldex don't use anything else you will not regret it the quality and workmanship is second to none thats why I refuse to build anything thats not with there parts.

Re: quad-rotor 565
 

Bob, If you go to jetboatracing.com there will be a link on the first page that says 2004 awja rule set.Im amazed how high you guys rev the big cube offshore stuff and yet it still holds together.Its nice to find people that have an understanding of what kind of abuse these motors get and to be able to share good information that could prevent major failures...thanx!

Re: quad-rotor 565
 

Is it possible for a Whipple to make that kind of HP on a 565

Re: quad-rotor 565
 

quad rotor 3.3, yes.....

Re: quad-rotor 565
 

565ci is more than enough for 1500HP. My Quad rotor 2.3 EFI 540 makes 1370HP at 6300rpm. It's actually hard to make less than 1100HP with the 3.3 quad rotor.

I'm using a callies racemaster crank, oliver rods, and AFR 357 heads. I'm very happy with this combination.

Re: quad-rotor 565
 

That's very impressive, do you have any dyno sheets you can post ?

Re: quad-rotor 565
 

I'll see if I can find them this week.

Re: quad-rotor 565
 

how much boost do you run ? what fuel?

Re: quad-rotor 565
 

Laz when you going to do another oiler. Take some picks :drink:


I have always used the Crower stuff with good luck.

Bob I have heard good stuff on Winberg crankshafts.Ya don't hear that name very often. I have a friend that was doing a stroker crank in a outboard 2.5 drag motor and Winberg was the only one that said he could make it :eek:


Rob :drink:

Re: quad-rotor 565
 

15Ibs, 112 octane.

Re: quad-rotor 565
 

Killer numbers zt260! Does anyone know how much of a speed drop you will see if you run a similar motor as zt260 when run at peak torque instead of peak hp?

Re: quad-rotor 565
 

I had a 598 on the dyno yesterday it made 1283 hp with 12# of boost. Hoping to run this combo with 100ll. also the timing was at 32* dustin really wanted more timing but my engine builder is a little more conservative.

Re: quad-rotor 565
 

I am assuming you will be EFI. Forget the SCAT crank, it won't be an if but a when it will break :( Piston oilers and pin oilers are a good idea as well. Making 1500hp with that setup is not hard, keeping it together becomes the struggle, the hardest part will be controlling combustion temperature. Expect to have to play with overlap and exhaust durations to keep it in line. Making a sweep on the dyno may give you a trend, but you need to hold that engine at 6500 rpm for some time to see where the EGT's stabilize if they ever do. Good luck :)

Re: quad-rotor 565
 

I'm not following the question. My peak Torque was around 4900rpm

Re: quad-rotor 565
 

I believe he is concerned about where peak torque happens as a jets' torque absorption curve is MUCH steeper than a prop. You can get away with a "peakier" torque curve with a prop, but with a jet the torque curve must be much flatter. Kind of hard to explain via typing, but to kind of get the idea, if you have a combination that starts to drop hp at ~6500, you would prop for ~6500. If your jet is designed for ~6500 rpm for your speed, then your engine better not fall off till way after 7000 rpm or you will never get to 6500 rpm. hth's