Dumbo The Flying Elephant - Page 57

Greg West · 03-15-2022, 04:42 PM

Larry, one of our research facilities in Europe measured bore distortion on a running engine that ran at 6,000 rpm. SAE Paper 2002-01-0485 has the results of the testing. It makes for an interesting read.

Larry Hill · 03-16-2022, 07:40 AM

Thanks Greg, I will read it then I will get Chris to understand it for me.

We wanted to tweak our ring package just a little, so I called Total Seal for the rings. A pleasant surprise was everything was on the shelf and it will be shipped today.

I may try a Bob Gliden and build it without the aid of an engine stand.

Stan, I always want the car better than 50/50 and rear weight biased enough to have the car go straight in a wheel stand. The iron head engine makes more power than the aluminum heads , but the aluminum heads go A to B much more consistent.

Larry Hill · 03-18-2022, 08:35 AM

In going through some old information I discovered a torque sequence for the main caps. After following directions I rechecked housing bore and it was good.

Bob Toy finished rewiring the pink car and it looks organized and easy to work on. Still have to scale car and test.

Glenn Briglio · 03-18-2022, 12:32 PM

Quote:

Originally Posted by Larry Hill

Thanks Greg, I will read it then I will get Chris to understand it for me.

We wanted to tweak our ring package just a little, so I called Total Seal for the rings. A pleasant surprise was everything was on the shelf and it will be shipped today.

I may try a Bob Gliden and build it without the aid of an engine stand.

Stan, I always want the car better than 50/50 and rear weight biased enough to have the car go straight in a wheel stand. The iron head engine makes more power than the aluminum heads , but the aluminum heads go A to B much more consistent.

Iron head engine has lower hp rating ie lighter weight ? Why not fix the car to go straight and consistent?

Larry Hill · 03-18-2022, 08:16 PM

Glenn the iron head engine makes more power and is rated higher.

Larry Hill · 03-20-2022, 08:23 PM

NCAA basketball is over until Thursday. I will be able to see the relationship between the deck plates and the heads as to how round and straight the cylinders are.

Larry Hill · 03-24-2022, 09:05 AM

The plates and the heads are real close, only a few tenths difference.

Better equipment = better results only if the operator is skilled and experienced. Jeff Taylor Performance is such a place. I went there with the liners everywhere, over .002 variation in places, the end result was the cylinders were round and straight and only .001 bigger. I got one more build or of my pistons.

I miss a lot from my youth, I’m sure everyone can come up with a punch line, but I miss my eye sight the most. After cleaning and inspection I decided to reuse the main bearings. I caught the light just right and the saw a piece of trash on the bearing that would not wipe clean. The bearing was starting to flake off. That would have been pretty after a few dyno pulls.

Frank Castros · 03-24-2022, 05:25 PM

Is it a Polymer coating that was flaking? If so why did you re-use it?

Larry Hill · 03-24-2022, 06:27 PM

It was the Babbit flaking

Larry Hill · 03-26-2022, 09:06 AM

I think I'm done!

03-15-2022, 04:42 PM	#561
Greg West Junior Member Join Date: Jul 2016 Posts: 58 Likes: 15 Liked 48 Times in 20 Posts	Re: Dumbo The Flying Elephant Larry, one of our research facilities in Europe measured bore distortion on a running engine that ran at 6,000 rpm. SAE Paper 2002-01-0485 has the results of the testing. It makes for an interesting read.

03-16-2022, 07:40 AM	#562
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant Thanks Greg, I will read it then I will get Chris to understand it for me. We wanted to tweak our ring package just a little, so I called Total Seal for the rings. A pleasant surprise was everything was on the shelf and it will be shipped today. I may try a Bob Gliden and build it without the aid of an engine stand. Stan, I always want the car better than 50/50 and rear weight biased enough to have the car go straight in a wheel stand. The iron head engine makes more power than the aluminum heads , but the aluminum heads go A to B much more consistent. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-18-2022, 08:35 AM	#563
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant In going through some old information I discovered a torque sequence for the main caps. After following directions I rechecked housing bore and it was good. Bob Toy finished rewiring the pink car and it looks organized and easy to work on. Still have to scale car and test. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-18-2022, 08:16 PM	#565
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant Glenn the iron head engine makes more power and is rated higher. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-20-2022, 08:23 PM	#566
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant NCAA basketball is over until Thursday. I will be able to see the relationship between the deck plates and the heads as to how round and straight the cylinders are. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-24-2022, 09:05 AM	#567
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant The plates and the heads are real close, only a few tenths difference. Better equipment = better results only if the operator is skilled and experienced. Jeff Taylor Performance is such a place. I went there with the liners everywhere, over .002 variation in places, the end result was the cylinders were round and straight and only .001 bigger. I got one more build or of my pistons. I miss a lot from my youth, I’m sure everyone can come up with a punch line, but I miss my eye sight the most. After cleaning and inspection I decided to reuse the main bearings. I caught the light just right and the saw a piece of trash on the bearing that would not wipe clean. The bearing was starting to flake off. That would have been pretty after a few dyno pulls. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-24-2022, 05:25 PM	#568
Frank Castros VIP Member Join Date: Nov 2001 Location: The Lowcountry. Posts: 2,801 Likes: 2,281 Liked 2,374 Times in 866 Posts	Re: Dumbo The Flying Elephant Is it a Polymer coating that was flaking? If so why did you re-use it?

03-24-2022, 06:27 PM	#569
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant It was the Babbit flaking __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

03-26-2022, 09:06 AM	#570
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,472 Likes: 1,763 Liked 10,150 Times in 2,103 Posts	Re: Dumbo The Flying Elephant I think I'm done! __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817