What's behind your FE???
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Senior User
Joined: Feb 2003
Posts: 395
Likes: 0
From: South Carolina
What's behind your FE???
Trying to gather some information for comparison purposes...
Still tweaking on my project, contemplating stall converter/rear gear changes and it would help me a lot to see what all of you are doing, and hopefully it'll help someone else in making decisions beforehand...
I'm mainly interested in what converter you're running with your C6, but it would be very helpful if you would please list the following specs:
1) Cam - Brand, duration and lift @.50"
2) Rear gear ratio
3) Torque converter - Brand, part number if available, and advertised stall rating.
Still tweaking on my project, contemplating stall converter/rear gear changes and it would help me a lot to see what all of you are doing, and hopefully it'll help someone else in making decisions beforehand...
I'm mainly interested in what converter you're running with your C6, but it would be very helpful if you would please list the following specs:
1) Cam - Brand, duration and lift @.50"
2) Rear gear ratio
3) Torque converter - Brand, part number if available, and advertised stall rating.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
1) Crane 343801 278/290 222/234 .548/.580 114LCA
2) 3.70 with mini spool
3) Stock converter modified by trans builder to stallat 2,400 rpm behind the 360 but with the 390 it stalls at 3,200 rpm. I have a 3,800 10" converter in the shed that is going in pretty soon.
2) 3.70 with mini spool
3) Stock converter modified by trans builder to stallat 2,400 rpm behind the 360 but with the 390 it stalls at 3,200 rpm. I have a 3,800 10" converter in the shed that is going in pretty soon.
Lead Driver
Joined: Apr 2001
Posts: 6,175
Likes: 21
From: Texas
1. Crane 349521 Hyd. Roller 284/290 222/228 .584/.607
2. Dana 60 with 4.10:1 gear ratio, open but soon to get some form of street friendly locker.
3. Modified stock style converter, stall speed not increased as far as I know. I'm actually not sure what was done to the convert. But I like the way it runs. I just told "Zeek" when he was rebuilding my C6 that it would probably see some healthy HP/Torque. He replied "Awrighty, I'll hook you up". ?????
2. Dana 60 with 4.10:1 gear ratio, open but soon to get some form of street friendly locker.
3. Modified stock style converter, stall speed not increased as far as I know. I'm actually not sure what was done to the convert. But I like the way it runs. I just told "Zeek" when he was rebuilding my C6 that it would probably see some healthy HP/Torque. He replied "Awrighty, I'll hook you up". ?????
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
I dont know how much help this will be, but here's what I'm running right now:
1. Cam: Ford 360 stock, lift .427" intake, .431" exhaust, unknown duration, couldn't be that much
2. 3.70:1
3. Ford stock torque converter, I think it stalls somewhere around 1800rpm
Here's what I'll be running after I get the 390 in next summer:
1. Cam: Crane 343941, lift .533" intake, .563" exhaust, 272/284 duration
2. same 3.70:1
3. Same Ford stock torque converter, it's going right back in after the transmission.
1. Cam: Ford 360 stock, lift .427" intake, .431" exhaust, unknown duration, couldn't be that much
2. 3.70:1
3. Ford stock torque converter, I think it stalls somewhere around 1800rpm
Here's what I'll be running after I get the 390 in next summer:
1. Cam: Crane 343941, lift .533" intake, .563" exhaust, 272/284 duration
2. same 3.70:1
3. Same Ford stock torque converter, it's going right back in after the transmission.
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
P265/75R15
A light foot helps. If I drive it hard, the mileage goes down.
A light centrifugal advance spring is installed, giving it a quick curve and more advance at highway speeds. The installed and working vacuum advance also helps.
I have quality blue streak points installed.
I use an Accel Super Stock coil.
I use premium plug wires, with platinum plugs.
I have the initial timing set at 12 deg. BTDC.
I use #68 jets in the primary, and #74 in the secondary, with a 6.5"Hg power valve. I keep the carb cleaned often. I'm thinking of changing to 67's on the primary and 75's on the secondary to squeeze that last little bit out of it.
A clean air cleaner also helps.
Making sure the brakes are not dragging is essential.
Sorry for the long post.
Edit: Note that synthetic fluids are NOT part of the formula. And dont tell me I'd get 17mpg with them!
A light foot helps. If I drive it hard, the mileage goes down.
A light centrifugal advance spring is installed, giving it a quick curve and more advance at highway speeds. The installed and working vacuum advance also helps.
I have quality blue streak points installed.
I use an Accel Super Stock coil.
I use premium plug wires, with platinum plugs.
I have the initial timing set at 12 deg. BTDC.
I use #68 jets in the primary, and #74 in the secondary, with a 6.5"Hg power valve. I keep the carb cleaned often. I'm thinking of changing to 67's on the primary and 75's on the secondary to squeeze that last little bit out of it.
A clean air cleaner also helps.
Making sure the brakes are not dragging is essential.
Sorry for the long post.
Edit: Note that synthetic fluids are NOT part of the formula. And dont tell me I'd get 17mpg with them!
Last edited by rusty70f100; Jan 19, 2004 at 11:05 PM.
Postmaster
Joined: Jul 2003
Posts: 3,934
Likes: 0
From: iowa
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Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Not really. Last trip I took down to Oskaloosa from Waterloo I got 15mpg. It seems to like the cold, leading me to believe it's still running just a tad rich. I'd think the denser cold air would lean it out, but that hasn't been the case. I think the open element 4" tall 14" diameter air cleaner has the air preheated a little by the radiator and headers.
I can be going down the highway on flat level ground with no wind, at 55mph, and have 18"Hg on the vacuum gauge. I barely have to hit the gas to keep it going!
I can be going down the highway on flat level ground with no wind, at 55mph, and have 18"Hg on the vacuum gauge. I barely have to hit the gas to keep it going!
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Postmaster
Joined: Jul 2003
Posts: 3,934
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From: iowa
Originally posted by rusty70f100
I can be going down the highway on flat level ground with no wind, at 55mph, and have 18"Hg on the vacuum gauge. I barely have to hit the gas to keep it going!
I can be going down the highway on flat level ground with no wind, at 55mph, and have 18"Hg on the vacuum gauge. I barely have to hit the gas to keep it going!
Same here! my foot acually hurts from the steep angle i have to hold my foot.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
I've gotten 12MPG with my setup. I was driving down the interstate at 65MPH on a long trip though. I know what you mean by the steep foot angle. I hooked my linkage up to another hole on the carb to give it a faster throw.
Senior User
Joined: Mar 2003
Posts: 183
Likes: 0
From: Utah
off the subject a little bit, Ratsmoker, What is you're quarter mile time with the 3.70 gears? Our engines are pretty similar and I am just wondering what to expect when I drop it in(performance and MPG)?