My 400 Build
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
You are way pass the 300hp, anyways 76cc heads are unusual do to rebuilts theses heads have, so i will asume instead a cr of 9.46:1, oh and tim pistons have 14ccs not 13, anyways:
you have a peak torque at:
449@3000
peak hp:
344@4500
this is asuming you will use long tube headers and mufflers(with out mufflers the thing gets better)
you have a peak torque at:
449@3000
peak hp:
344@4500
this is asuming you will use long tube headers and mufflers(with out mufflers the thing gets better)
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
You are way pass the 300hp, anyways 76cc heads are unusual do to rebuilts theses heads have, so i will asume instead a cr of 9.46:1, oh and tim pistons have 14ccs not 13, anyways:
you have a peak torque at:
449@3000
peak hp:
344@4500
this is asuming you will use long tube headers and mufflers(with out mufflers the thing gets better)
you have a peak torque at:
449@3000
peak hp:
344@4500
this is asuming you will use long tube headers and mufflers(with out mufflers the thing gets better)
I cant wait to hear it and drive it. Too bad it's probably gonna be a month or so at least before I get it running.Is that typical to make my peak tq at 3000? Is that mainly just due to the xe262h cam? So between 3000 and 4500 my tq will drop but hp increase?
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
well i run in some local mud races where the stock classes dont allow open headers but theres usually a 'super stock' or 'modified stock' type class that does allow open headers. It would be awesome to get to run both classes. I made a post in the exhaust section, I was curious about cutouts. I think I would avoid the fancy electric ones but I saw a set on summit that theres just 3 wing nuts to undo and then you have open headers. Their not very expensive either. I was thinking about running something like that but I dont want to mess with it if their gonna be nothing but trouble, with leaks constantly etc.
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
yeah i use a simillar setup on 1-4 mile, but you will have to have 2 carbs with diffrent setups and advance the timming on open headers, the open header carb has to have larger jets for a richer air/fuel ratio than the muffler carb, other wise you will loose performance with the open headers. Anyways thats what i like better from eddies than from holleys, in my eddie 750 manual choke performer you can enrich the mixture just by adjusting some screws located on the front lower side of the carb, and it works for me.... 
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
At the mud races I heard some Jeep guys talking like the D44 is really strong etc, is that just because their jeeps are alot lighter than our pickups? I always thought the 9" was somewhat bulletproof but the D44 was a 'weak link' but what do I know.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
yeah i use a simillar setup on 1-4 mile, but you will have to have 2 carbs with diffrent setups and advance the timming on open headers, the open header carb has to have larger jets for a richer air/fuel ratio than the muffler carb, other wise you will loose performance with the open headers. Anyways thats what i like better from eddies than from holleys, in my eddie 750 manual choke performer you can enrich the mixture just by adjusting some screws located on the front lower side of the carb, and it works for me....
I run the Eddie Performer #1406, 600 cfm w/ elect. choke, I'm very happy with it.
Do you prefer the manual choke for any reason?
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
the only reason for the manual, is i removed the butterflies so i can floor the pedal even if the engine is cold.....not really, real reason, i love to have total control on my carb eating fuel cabailities......jejjeje
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
I just wanted to update this and get some advice on the heads. I decided to let a local machine shop do most of the work and assembly. I ordered the .040 over #2347 pistons from TMI. Supposed to be good for 9.5-1. I ordered the K-kit from comp cams with the timing set, springs, locks, retainers, and the XE262H cam. When they assemble the heads is there anything else I should do at this point? He mentioned he can put bigger valves in it, but I know that bigger isn't always better.
They finished up most of the machine work today so I'm hoping they will get a move on. I cant wait to actually have some power. Should be a night and day difference between 344hp 449tq 400 and my old worn out 351M
They finished up most of the machine work today so I'm hoping they will get a move on. I cant wait to actually have some power. Should be a night and day difference between 344hp 449tq 400 and my old worn out 351M
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
Well i told him to just keep the valves stock size but put some stainless valves and a valve job. I couldnt really justify spending all that extra money right now.
I told them to take their time, hoping he'd give me a break on $$ but GEEEEZ, they have had it a month now. I stop in after work once a week and they are nice but maybe i shouldnt have said to take your time.
Oh yea, and I told him to balance it, was that a waste of money? or worth it? and I told him to put arp rod bolts, i guess that takes a little machining???
I told them to take their time, hoping he'd give me a break on $$ but GEEEEZ, they have had it a month now. I stop in after work once a week and they are nice but maybe i shouldnt have said to take your time.
Oh yea, and I told him to balance it, was that a waste of money? or worth it? and I told him to put arp rod bolts, i guess that takes a little machining???
Thread Starter
|
Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
Yea they got the flywheel and the harm balancer, I dont plan on spinning it real fast (6k max) but I thought it might be worth it to get it balanced. maybe a waste of money who knows. And the arp bolts will give me a little peace of mind if nothing else i guess