F350 Strait
03-23-2006, 12:53 AM
Howdy All
Well I’m a happy camper. I have just dyno’d my new engine. This is the first engine that I’ve put together from the bottom to the top on my own. My goal was to build a torque monster that I will be installing in my 79 F350 to pull a 37’ toy hauler . . . everyone has their hot rod build . . .
What I built:
545 – Scat rotating assembly with forged pistons, ‘H’ rods, internally balanced. – 10.5 to 1 compression.
My block was zero decked, torque plate bored to 30 over, line honed main bearing & camshaft journals.
The oil pump is a high volume Ford cobra jet pump that I shimmed with 2 shims prior to installation.
Comp Cam – Extreme Energy 262 H springs & all - set straight up, Comp’s magnum roller rockers, Ford’s push rods for the John Kasse Super Cobra Jet heads.
John Kasse’s alum. Super Cobra Jet heads
Edlebrock’s Air Gap Performer intake
750 Holley dual feed, double pumper – stage 3 upgraded/blueprinted by Jet.
L&L Headers
My goal was to have major low rpm torque, close to 600 ft lbs, with a modest increase in horse power. Obviously, I way overbuilt the bottom end . . . two reasons – 1. I wanted to bullet-proof the engine & 2. IF I ever decide to put the engine in a ‘quicker’ vehicle, all I have to do is change the cam & springs & I have a horsepower engine.
The reason that I am using a shimmed high volume oil pump (High Flow Dynamics, thanks Paul Kane) is that I will be running, ‘lugging’, the engine around 2,000 rpm pulling a 10,000+ lb 5th wheel. I want tons of oil circulation at that rpm. Yes I have a factory oil cooler on it. So far the oil pressure is pretty steady at 60+ lbs up to 70 lbs when it is cold.
The dyno results are 614 average torque from 3,000 to 5,000 rpm with a majority of the torque in the 3,000 range of 650 + torque. I was not able to get the torque from 2,000 up because the engine blew thru that rpm before the Dyno could grab it. I think that I probably am developing around 600 ft lbs at 2,000 rpm. Horse power wise an average of 448 with the upper end being 498 @ 5,000.
Now all I have to do is get the engine into the truck. Can’t wait to feel it in the truck.
Earl
Well I’m a happy camper. I have just dyno’d my new engine. This is the first engine that I’ve put together from the bottom to the top on my own. My goal was to build a torque monster that I will be installing in my 79 F350 to pull a 37’ toy hauler . . . everyone has their hot rod build . . .
What I built:
545 – Scat rotating assembly with forged pistons, ‘H’ rods, internally balanced. – 10.5 to 1 compression.
My block was zero decked, torque plate bored to 30 over, line honed main bearing & camshaft journals.
The oil pump is a high volume Ford cobra jet pump that I shimmed with 2 shims prior to installation.
Comp Cam – Extreme Energy 262 H springs & all - set straight up, Comp’s magnum roller rockers, Ford’s push rods for the John Kasse Super Cobra Jet heads.
John Kasse’s alum. Super Cobra Jet heads
Edlebrock’s Air Gap Performer intake
750 Holley dual feed, double pumper – stage 3 upgraded/blueprinted by Jet.
L&L Headers
My goal was to have major low rpm torque, close to 600 ft lbs, with a modest increase in horse power. Obviously, I way overbuilt the bottom end . . . two reasons – 1. I wanted to bullet-proof the engine & 2. IF I ever decide to put the engine in a ‘quicker’ vehicle, all I have to do is change the cam & springs & I have a horsepower engine.
The reason that I am using a shimmed high volume oil pump (High Flow Dynamics, thanks Paul Kane) is that I will be running, ‘lugging’, the engine around 2,000 rpm pulling a 10,000+ lb 5th wheel. I want tons of oil circulation at that rpm. Yes I have a factory oil cooler on it. So far the oil pressure is pretty steady at 60+ lbs up to 70 lbs when it is cold.
The dyno results are 614 average torque from 3,000 to 5,000 rpm with a majority of the torque in the 3,000 range of 650 + torque. I was not able to get the torque from 2,000 up because the engine blew thru that rpm before the Dyno could grab it. I think that I probably am developing around 600 ft lbs at 2,000 rpm. Horse power wise an average of 448 with the upper end being 498 @ 5,000.
Now all I have to do is get the engine into the truck. Can’t wait to feel it in the truck.
Earl