New 434
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Postmaster
Joined: Aug 2001
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From: Delaware
That simulation was done with open exhuast. It should be close to the true Dyno numbers. With mufflers it will be a little less.
I have a 2000 RPM stall converter in my truck. It should smoke my 50s on dry pavement.
I had another cam simulated with 117 LSA, but I couldn't get it built at a reasonable price. That flattened the torque curve more, by reducing the overlap.
I have a 2000 RPM stall converter in my truck. It should smoke my 50s on dry pavement.
I had another cam simulated with 117 LSA, but I couldn't get it built at a reasonable price. That flattened the torque curve more, by reducing the overlap.
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From: Delaware
Originally Posted by Torque1st
The other cam might have moved the DCR into the detonation range also.
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Joined: Aug 2001
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From: Delaware
Just for comparison. a 408 with a 255DEH cam and 9.0:1 CR will have 413 ft-lbs torque at 1500 RPM. It flattens out just under 450 ft-lbs until 3500 RPM, then drops. This motor will exceed 450 Ft-lbs between 2000 and 2500 RPM and continues to pull to 5000 RPM, where the peak torque is 558 ft-lbs.
This is not meant to be a stump pulling motor, but if you were pulling a hill at highway speed, and downshifted the torque will increase by up to 100 ft-lbs. The other motor will just slow down after a downshift, unless the gear multiplier allows it to continue to pull in that gear.
This is not meant to be a stump pulling motor, but if you were pulling a hill at highway speed, and downshifted the torque will increase by up to 100 ft-lbs. The other motor will just slow down after a downshift, unless the gear multiplier allows it to continue to pull in that gear.
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Dan, just wondering what news you may have with the progress of the 434. I am anxiously waiting to see what the dyno results are from TMI, where he is as far as the build goes. Just being curious...
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Postmaster
Joined: Aug 2001
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From: Delaware
The motor is almost done, cam installed, Heads installed. It was going to the Simtest yesterday. Tim will dyno it with a carb in the next couple of days. I will be leaving on the 4th of Dec and be there on the 7th and 8th. We will do the EFI dyno runs on those days.
The temperature has been in the 70s around here, I am going to freeze in Minnesota next week.
The temperature has been in the 70s around here, I am going to freeze in Minnesota next week.
Mountain Pass
Joined: Dec 2001
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From: collierville, tn
Cam specs & sym
Can i get a copy of this info in larger format...i am struggling to read it. My eyes are too bad!
Originally Posted by danlee
Here are the cam specs and Dyno Simulation of my new 434. This motor is not optimised for either racing or for pulling, but for High Performance street use.
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From: Delaware
Originally Posted by havi
lol, and Dan, no he didn't forget a zero. But forecasts say it will warm up to 30 by the end of next week. Just ripe for snow.
When we get snow, it can sometimes be measured in feet.
