Any idea how much horsepower this gem will produce? The Twister IIs made close to 200 in their all-out factory tune, and they were merely cross flows.
Jeff
Any idea how much horsepower this gem will produce? The Twister IIs made close to 200 in their all-out factory tune, and they were merely cross flows.
Jeff
Time to update on the progress. Finished the mill work on the sleeves and have nearly completed the transfer inserts. I have included a few pictures of the insert process. The first pic is of the port opening. when you look at the port it looks like it has a black line at one side. Actually that is a .040 land of the sleeve exposed for the insert to lock against. With that and the four sided taper fit, the insert will not vibrate loose after cementing in place with JB Weld. The shiny looking part of the sleeve is the edge of the sleeve cut by the mill. The balance of the pics are just the sequence of the fitting and final inserted look.
Have to make a choice of fixing the Looper after Constantine for Hillsdale or continue on the Beast. The beast will not make Hillsdale, Suters will questionable at this rate. Summer has bogged down work progress. The Looper needs a new set of pistons made, which I have blanks for, and re-bored. Time is at a premium.
How much horsepower? Good question. I do not know. I attached at Mercury propaganda picture of the TII X at 200 plus HP. Paul says the 66 Looper was at 200HP? 66 inches @ 70 HP Stock to 200 HP equals 100 inches @ 155 Stock to 440 HP. That is just math, who knows? I am sure if it runs at all, it will be enough for me.
Added a picture of the front end just laying in wait.
I talked with Dan Kirts at Constantine after AOMC meet and discussed the Line2Line piston coating process and decided to have the pistons done. So in the lathe and took the cam out of the piston and re-cut the top end taper. That also gives me some clean up room for the balance of the pistons I had to buy for the special production run, should I have a cylinder problem. Dan swears by the system, If its good enough for him it works for me. As a side note, was Dan injured in a boat accident? I noted the family said they would not let him back in a boat.
Richard,
Dan went into the hospitial right after COnstantine. He was bleeding in the brain area, and had to undergo emergencey surgery. He was fighting for his life, and a long battle it is going to be. he is still not out of the woods yet, but is improving each day. He did wake up, and does have some memory, but nothing of Constantine, yet. He is now moved to a regular room, and is trying to do some physical therapy to gain some mobility of his right side. he does know all of his family, and recalls past history. It will be a long road to recovery from what Jim tells me, and what I am seeing on Facebook. I do believe he is able to take visitors now from what I see, so if you are in the area again, I bet it would do him good to see some racing buddies.
An OEM contact once confirmed Quincy loopers were known to deliver an astounding 6HP/In3 (over a very narrow powerband). Taking a conservative view at half the output, the "Looper Beast" should produce 300-ish HP. The larger question becomes: Will the driveline take it?
My guess is the "Beast" will be pressed for short blips to something less than blowover speed for the sheer joy of acceleration. Under these conditions, the gearcase, rotating and reciprocating parts should survive for quite some time.
That said, my comparatively low-output turbo 56 OMC (only 150-ish HP) needs pistons after about 5 hours operation (and two head gaskets). The fact is neither engine will be stressed to deliver full power for very long: Lakes are too short, and life is too precious.
This is a spectacular project regardless. Hats off to Dick Austin for seeing this through!
Tim
PS: As Hillsdale is not happening, perhaps you might consider mocking it up for Suters?
Tim
Are you talking about the 6 cylinder event in hillsdale being cancelled, or something different? While my 6 wint be ready for it I was considering hearing out there to be a spectator.
Clarification: Dick Austin is likely unable, but the event is still alive. I'm looking for a roll call for testing Friday and the exhibition Saturday and Sunday. So far, confirmed are:
Rich Welch MK75H - hydro (legal 850cc Mod)
Tim Kurcz MK78H 666 conversion - hydro (legal 1100cc Pro)
Others please respond. Thanks!
Tim
Last edited by Tim Kurcz; 08-20-2013 at 03:55 PM. Reason: Correction
Much as we’d all like to see and hear the sixes run, planned attendees are unable to participate due to a myriad of technical and personal challenges.
Anybody that brings a six will get a chance to run, and you can expect another Merc six exhibition attempt next year.
Many thanks to race director Kevin Besonen and our friends at the IOA for supporting this event.
Tim
Been awhile since the last post. Still making progress, just at a slower pace. Couple of weeks after my last post I lost my biggest fan and critic. My father, aged 91 years young, passed peacefully. I had hoped to complete this project before his passing.
As a result I have slowed the pace and trying to catch up on other things that I have let go.
I have posted some pics of the porting work after the sleeve installation. I made a plug to fit the cylinder prior to boring to fit the main transfer port. The upper ports have be hand finish cut due the radical change when bored to size because they lay 90 degrees to the bore and are right at the top of the cylinder. They are also cut on a bias to the cylinder so they open at the tips first to direct the initial charge to wipe up the side opposite the exhaust.
After the ports were set I bored to size.Yet be honed to a final finish and size. As the piston still will fit, I loaded number 5 & 6 piston to check rod clearances in the case and piston to deck clearance.
Need a little rod clearance work but all else looks good. Now on to gluing in the the transfer corner forms.
I did find the problem with the Quincy loop after Constantine. We can all make mistakes, and I did. A 1/4 inch pipe plug that belongs in the bottom head was not re-installed. Trying to do to much to fast will get you every time. You look at something and see what you expect and not what you really see. The result, no water in the heads and very little made it into the block. Maybe that is why it stuck.
Condolences on your loss; I'm sure your dad's spirit will beam with delight when you fire it. Again, simply fabulous! I hope you can make it to Suter's if just for fun.
Tim
Sorry to hear about your dad's passing. See you at Suters.
Bruce
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