My only experience with a flat head ford was with my neighbor. He’s building an “A” hotrod. Wanted me to relive the block. I had no idea what he was talking about, until he showed me😀. Turned out nice.
I've actually done a lot of flatheads, and flowed a half dozen or maybe a couple of more and relieving the chamber is bad. Very bad. They also LOVE 50 degree seats.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Did it per neighbors request. The head/ piston combo needed less static compression to work with the blower. Definitely not an expert on these! My question to you as it was to him.... How in the ψξεβ do you flow test this??? You need everything in place, and i see no way to put it on a flow bench? What I did came out of some flat head god’s book.
I'm assuming that motor has adjustable lifters, correct? I remember them days Them bad old days a long time ago I also remember having and using 5/16 adjustable pushrod in a early Firepower Hemi to se the valves
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Ardun on the dyno
[Re: mickm]
#2755483 03/24/2003:09 PM03/24/2003:09 PM
At the shop now, did the initial breakin, adjusting the valves.
Should have known better than to give a “fact” relying on my few remaining brain cells.
“Owner is hoping for 350hp.” Dino doesn’t think they will get this, lack of headers, questionable head work, etc...
Should have a video and some numbers soon!
290 HP is my guess.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
Re: Ardun on the dyno
[Re: TRENDZ]
#2755498 03/24/2003:56 PM03/24/2003:56 PM
W/r/t the old school baloney-sliced ram stacks: Whoever thought this out paid no attention to physics. Think of the air horn as a needle jet (Mikuni, Amal, Kei-Hin). As speed increases, air velocity across the top of the stack produces vacuum inside the air horn - the opposite of what you want. Might add some air if reversed with the open end forward.
Boffin Emeritus
Re: Ardun on the dyno
[Re: GY3]
#2755509 03/24/2004:25 PM03/24/2004:25 PM
W/r/t the old school baloney-sliced ram stacks: Whoever thought this out paid no attention to physics. Think of the air horn as a needle jet (Mikuni, Amal, Kei-Hin). As speed increases, air velocity across the top of the stack produces vacuum inside the air horn - the opposite of what you want. Might add some air if reversed with the open end forward.
Agreed But running a flat head is more of a style thing than a performance thing. Airflow with those stacks is not an issue reving your blown flat head in a parking lot
"use it 'till it breaks, replace as needed"
Re: Ardun on the dyno
[Re: mickm]
#2755525 03/24/2005:04 PM03/24/2005:04 PM
The dyno guy had to do a bunch of fab work just to get that engine ready to go. I'm guessing the bill from the dyno shop is going to be substantial.
Very much so. The project is more than that though. Brought the engine in as is was running horribly, turned out to just be very fouled plugs. But still couldn't get much power out of it, so Dino tore it down, and it had the wrong pistons, sitting way below deck. New pistons and steel main caps added, and now looking to see what it will do. Yes, going to be a hefty bill!
Re: Ardun on the dyno
[Re: mickm]
#2755570 03/24/2008:10 PM03/24/2008:10 PM
Here is the last dyno sheet of the day. This was after one rejetting step, (have to remove each carb to do the jets), and playing with timing by ear, as it looks like the magneto blew the timing light.
It still appears to be a bit lean, so he's going to go one more step on the jets, get a correct timing light, and see what it will do.
Notice the RPM, and still climbing! But Dino, the owner as well as myself, (even though my vote doesn't count), were scared even taking it that high, and decided not to go higher.
Not bad! Jets and maybe timing should be good for at least a few more HP.
Was very cool hanging out and watching this one get done though, just something different and unique.
Here is one of the pulls.
Here it is in the dyno room.
And while we're at it, here is my engine on the same dyno years ago.
And just for your viewing pleasure, !
Last edited by mickm; 03/24/2008:13 PM.
Re: Ardun on the dyno
[Re: mickm]
#2755583 03/24/2008:46 PM03/24/2008:46 PM