The Ford Barn

Randall · 03-19-2024, 08:57 PM

Finally got the mercury flathead done!
https://youtu.be/--sgJpT6m7U?si=wI_9ia9iSQLKNmM9

oldbugger · 03-19-2024, 10:48 PM

couldn't read the results, interested because thats the same motor i have in my 35

Newc · 03-19-2024, 11:04 PM

Speak more clearly and eunciate your words- so many folks slur their speaking. Video and phones do not carry words well generally. Newc

GB SISSON · 03-20-2024, 12:15 AM

Looks to me like the first run had a max of 129 hp and the secong 126.So it's stock, other than the cam? What is the bore now? I had no problem understanding the narative. I think he just has one of them Southern accents. Thanks for posting that.

Tim Ayers · 03-20-2024, 05:15 AM

Randall,

That's awesome and thanks for sharing. Can you tell us a little more about what you did? 126 hp is impressive for a stock looking motor.

Ziggster · 03-20-2024, 05:32 AM

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Thank you for posting! So few vids on YT of actual dyno tests of flatheads. Eventually I want mine dynoed. Mine (C59A) is completely stk with only a 0.060 overbore and Pete’s Isky 1007B cam grind. I was thinking mine might come in at around 110-115 hp. Also good to know that the 4,000 rpm tach I have is all the rpm’s I’ll need to measure. Lol!

jimTN · 03-20-2024, 07:24 AM

Good job Randall!!!

deuce5wndw · 03-20-2024, 07:48 AM

Good job Randal! I had no problem with the accent maybe because we sound alike!

Bored&Stroked · 03-20-2024, 08:09 AM

I had no problems with the video - understood everything. In looking at Dyno pull #2, the engine is either breaking up due to the ignition or floating the valves at about 3800 RPM. Both torque and HP bounced around and fell right off. Given this is in a stock type application, it is a good running engine.

corvette8n · 03-20-2024, 08:16 AM

I turned on the captions so I could understand it, good job.

Mart · 03-20-2024, 08:59 AM

Sounded great, thanks Randall. Had no problems with voice or sound watching on my pc with stereo speakers.

flatford8 · 03-20-2024, 09:11 AM

Nice!!......thanks for posting......sounds great!!.......I understood every word....people say I talk funny too!!........Mark

Seth Swoboda · 03-20-2024, 09:26 AM

I loved the dyno video. I too wish folks would post more of these. 129hp for a stock engine is pretty good. It should make for a nice cruising car. Good work.

Zeke3 · 03-20-2024, 09:37 AM

Thanks for the video, I enjoyed the dyno pulls. It sounds like a real healthy engine.

rockfla · 03-20-2024, 09:46 AM

Not sure WHAT torque number generally run but that is what caught my eye....201.# ft lbs of torque.....that is what you feel in the seat of your pants and under ones foot.

sidevalve8ba · 03-20-2024, 10:17 AM

I imagine that moves that '46 coupe along quite well! Enjoyed the video Randall. Thanks for sharing.

scicala · 03-20-2024, 11:12 AM

Quote:

Originally Posted by Randall

Finally got the mercury flathead done!
https://youtu.be/--sgJpT6m7U?si=wI_9ia9iSQLKNmM9

And that's with a 3 bolt carb and intake manifold for a 239 Ford.
If you used a correct Mecury 4 bolt intake and higher flow Holley 885F or 1901 carb, you might have made 140 HP.

Sal

tubman · 03-20-2024, 12:40 PM

It would be interesting to have a little more detailed information, such as the cam grind, overbore (if any), and if any work that was done on the heads.. The early 255's were rated at 110 HP, while the later ones were 125. If this engine is close to stock, those number seem to be right on. It's good to hear, as I was always disappointed with the numbers in JWL's book with a bone stock rebuilt 239.

I agree with Sal about the carburetor, except I'd use a 2G.

Ol' Ron · 03-20-2024, 01:52 PM

Yes, Born in Chicago, raised in winsconsim Worked in Ct for 30 years, and have lived in Vermont for the 40 years, you sound perfect to me America,. In JWL's book he used my dyno for the tests. The Dyno was a 300u0 GE electric unit, A UPS weight scale measured the torque output. Using the load cell brackets. The electronics of the unit was too expensive to repair UPS said the scale was a max of +-2%. Max HP from a 239 engine was 78 with out a generator or fan. This seemed kinda low but checking with others found that the Dyno was very accurate in it's load performance.. However after adding a Max# 1 can produced 112 hp.
In recent years I've been to many dyno runs, and know with alittle nudging ,here and there. you can get any amt of hP you want. Just ask any advertising agency
Gramps

Randall · 03-20-2024, 08:47 PM

Glad you all enjoyed , that is the first flathead I have completely rebuilt,it has .080 pistons, stock heads, carb, intake stock size valves with 3 angle valve job and a Isky 817700 cam, springs ,adjustable lifters, I resized rods and replaced wrist pin bushings,
cam ,rod and main bearing, bought ol Rons book and asked Ronnie roadster some questions, thanks for the help!, its a little skidish seeing it come off motor stand and going wide open after warming it up on dyno thinking did I do everything right!

03-19-2024, 08:57 PM	#1
Randall Senior Member Join Date: Nov 2010 Location: Lambsburg Va Posts: 296	255 Merucry Dyno Pull Finally got the mercury flathead done! https://youtu.be/--sgJpT6m7U?si=wI_9ia9iSQLKNmM9

03-19-2024, 11:04 PM	#3
Newc Senior Member Join Date: May 2010 Posts: 2,488	Re: 255 Merucry Dyno Pull Speak more clearly and eunciate your words- so many folks slur their speaking. Video and phones do not carry words well generally. Newc

03-20-2024, 12:15 AM	#4
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,940	Re: 255 Merucry Dyno Pull Looks to me like the first run had a max of 129 hp and the secong 126.So it's stock, other than the cam? What is the bore now? I had no problem understanding the narative. I think he just has one of them Southern accents. Thanks for posting that. __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)

03-20-2024, 05:15 AM	#5
Tim Ayers Senior Member Join Date: May 2010 Location: NJ Posts: 6,181	Re: 255 Merucry Dyno Pull Randall, That's awesome and thanks for sharing. Can you tell us a little more about what you did? 126 hp is impressive for a stock looking motor.

03-20-2024, 05:32 AM	#6
Ziggster Senior Member Join Date: Aug 2018 Location: Ottawa, ON Posts: 855	Re: 255 Merucry Dyno Pull Sponsored Links (Register now to hide all advertisements) Thank you for posting! So few vids on YT of actual dyno tests of flatheads. Eventually I want mine dynoed. Mine (C59A) is completely stk with only a 0.060 overbore and Pete’s Isky 1007B cam grind. I was thinking mine might come in at around 110-115 hp. Also good to know that the 4,000 rpm tach I have is all the rpm’s I’ll need to measure. Lol!

03-19-2024, 10:48 PM	#2
oldbugger Senior Member Join Date: May 2010 Location: Holland Mi Posts: 642	Re: 255 Merucry Dyno Pull couldn't read the results, interested because thats the same motor i have in my 35

03-20-2024, 07:24 AM	#7
jimTN Senior Member Join Date: May 2010 Location: Powell, TN Posts: 2,509	Re: 255 Merucry Dyno Pull Good job Randall!!!

03-20-2024, 07:48 AM	#8
deuce5wndw Senior Member Join Date: May 2010 Location: Liberty, KY Posts: 901	Re: 255 Merucry Dyno Pull Good job Randal! I had no problem with the accent maybe because we sound alike!

03-20-2024, 08:09 AM	#9
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,068	Re: 255 Merucry Dyno Pull I had no problems with the video - understood everything. In looking at Dyno pull #2, the engine is either breaking up due to the ignition or floating the valves at about 3800 RPM. Both torque and HP bounced around and fell right off. Given this is in a stock type application, it is a good running engine.

03-20-2024, 08:16 AM	#10
corvette8n Senior Member Join Date: Jul 2010 Location: 36 miles north of Albany NY Posts: 2,952	Re: 255 Merucry Dyno Pull I turned on the captions so I could understand it, good job.

03-20-2024, 08:59 AM	#11
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,755	Re: 255 Merucry Dyno Pull Sounded great, thanks Randall. Had no problems with voice or sound watching on my pc with stereo speakers.

03-20-2024, 09:11 AM	#12
flatford8 Senior Member Join Date: Jan 2012 Location: Lyman,ME. Posts: 2,630	Re: 255 Merucry Dyno Pull Nice!!......thanks for posting......sounds great!!.......I understood every word....people say I talk funny too!!........Mark __________________ I'm thinkin' about crankin' My ragged ol' truck up and haulin' myself into town. Billy Joe Shaver

03-20-2024, 09:26 AM	#13
Seth Swoboda Senior Member Join Date: May 2010 Location: Southern Illinois Posts: 3,795	Re: 255 Merucry Dyno Pull I loved the dyno video. I too wish folks would post more of these. 129hp for a stock engine is pretty good. It should make for a nice cruising car. Good work.

03-20-2024, 09:37 AM	#14
Zeke3 Senior Member Join Date: Dec 2014 Location: Columbus, IN Posts: 1,407	Re: 255 Merucry Dyno Pull Thanks for the video, I enjoyed the dyno pulls. It sounds like a real healthy engine.

03-20-2024, 09:46 AM	#15
rockfla Senior Member Join Date: Mar 2014 Location: Jacksonville FL Posts: 3,963	Re: 255 Merucry Dyno Pull Not sure WHAT torque number generally run but that is what caught my eye....201.# ft lbs of torque.....that is what you feel in the seat of your pants and under ones foot.

03-20-2024, 10:17 AM	#16
sidevalve8ba Senior Member Join Date: May 2013 Location: Harrisonburg, VA Posts: 842	Re: 255 Merucry Dyno Pull I imagine that moves that '46 coupe along quite well! Enjoyed the video Randall. Thanks for sharing. __________________ The more I learn about new automobiles, the more I value my old ones.

03-20-2024, 12:40 PM	#18
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,319	Re: 255 Merucry Dyno Pull It would be interesting to have a little more detailed information, such as the cam grind, overbore (if any), and if any work that was done on the heads.. The early 255's were rated at 110 HP, while the later ones were 125. If this engine is close to stock, those number seem to be right on. It's good to hear, as I was always disappointed with the numbers in JWL's book with a bone stock rebuilt 239. I agree with Sal about the carburetor, except I'd use a 2G.

03-20-2024, 01:52 PM	#19
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: 255 Merucry Dyno Pull Yes, Born in Chicago, raised in winsconsim Worked in Ct for 30 years, and have lived in Vermont for the 40 years, you sound perfect to me America,. In JWL's book he used my dyno for the tests. The Dyno was a 300u0 GE electric unit, A UPS weight scale measured the torque output. Using the load cell brackets. The electronics of the unit was too expensive to repair UPS said the scale was a max of +-2%. Max HP from a 239 engine was 78 with out a generator or fan. This seemed kinda low but checking with others found that the Dyno was very accurate in it's load performance.. However after adding a Max# 1 can produced 112 hp. In recent years I've been to many dyno runs, and know with alittle nudging ,here and there. you can get any amt of hP you want. Just ask any advertising agency Gramps

03-20-2024, 08:47 PM	#20
Randall Senior Member Join Date: Nov 2010 Location: Lambsburg Va Posts: 296	Re: 255 Merucry Dyno Pull Glad you all enjoyed , that is the first flathead I have completely rebuilt,it has .080 pistons, stock heads, carb, intake stock size valves with 3 angle valve job and a Isky 817700 cam, springs ,adjustable lifters, I resized rods and replaced wrist pin bushings, cam ,rod and main bearing, bought ol Rons book and asked Ronnie roadster some questions, thanks for the help!, its a little skidish seeing it come off motor stand and going wide open after warming it up on dyno thinking did I do everything right!