460 Ford Forum banner

1 - 20 of 28 Posts

·
Registered
Joined
·
190 Posts
Discussion Starter #1 (Edited)
We just finished up the dyno session on a 477 build for a friends 78 Fairmont yesterday. Very informitive session as we ran this engine the better part of 20 or so runs, mainly trying out some different intakes. We started off with a untouched Offy T/Ram with two 650DP Holleys and then switched to a TFS Mafia intake. Bigger carbs would surely have helped but thats all we had to use. I did try out my Offy single top plenum and it was worth around 20HP more than the twin top and no loss of TRQ. My top was ran with a 1050CFM Dom. The intake was then switched over to a new 'out of the box' TFS Mafia intake, with a TFS 1" spacer, and a 1050CFM Dom and thats what this combo seemed to prefer although we had to spin the eng more RPM. The dyno sheet I posted is the most conservitive pull with the TFS intake because no stud girdle was installed. We did spin to 6900 & 7000RPM and the eng responded to the tune of 687HP. The build is as follows: D1VE block(sonic checked), early 2Y crank, PEP H beam rods, SRP 'flat top" pistons, JE rings, Oregon Cams ground flat tappet solid cam (260/[email protected] 110*L/Sep) Crower Cool Face lifters, Crower .120 wall P/Rods, Crower Stainless 1.73 Rockers, Isky V/Springs, & Ti Retainers. The comp. ratio worked out to 12.2 and VP110 fuel was used. 34* of timing seemed to be what worked the best. The heads were opened to CJ size on the Int. runner and bowl blended. All in all a straight forward combo with a tick over $5K wrapped in it....................
 

Attachments

·
Registered
Joined
·
190 Posts
Discussion Starter #3
Flying Fairmont

Thanks for the compliment! I imagine the Fairmont will haul, when he gets it to 'hook' which should'nt be to tough seeing how its a Fox body..........
 

·
Registered
Joined
·
3,760 Posts
nice build
 

·
Registered
Joined
·
190 Posts
Discussion Starter #5
Thanks.....

Thanks for the compliment. Im still amazed at the TRQ it made, wouldnt have thought it would have made near that amount..............
 

·
Registered
Joined
·
190 Posts
Discussion Starter #8
2" X 3.5"

The headers used were Hooker Fox swap peices(2"prim, 3.5" coll, not sure on the prim, tube length off the top of my head)...............
 

·
Registered
Joined
·
3,760 Posts
The headers used were Hooker Fox swap peices(2"prim, 3.5" coll, not sure on the prim, tube length off the top of my head)...............
Those headers work very well
 

·
Registered
Joined
·
1,473 Posts
It's not together yet because I'm still working on the car. Using flattops, a Victor intake, TFS CJ heads, and 1 7/8" Hookers for now (because I have them). Using solid cam with a bit more duration and a bigger split.....Probably will end up using a Dominator and going to 2" headers. Going to try different intakes to see what is quicker in the car. Still working on the heads and have been working on a Port-o-sonic to try out against the Victor and a TFS intake like the one you are running. Then will end up running a stroker of some kind eventually like everyone else....lol.....D
 

·
Registered
Joined
·
190 Posts
Discussion Starter #13
Intakes........

Have you done any mods to the Offy POS? The TFS Int is hard to beat for an 'out of the box' peice.........What work are you doing on the heads? Steve..........
 

·
Registered
Joined
·
1,473 Posts
On the POS I am trying to port it as much as possible and do CJ port match. Opening up the carb flange and plenum....and thinking of doing up a HVH 4500 adapter like I saw on an EMC engine years ago....Porting the heads and need to flow them and see how they are doing (until I am happy), which is never....lol. The Victor is a 4150 flange as well....not sure how I will address the flange on that one, although it is the same as a 4500 version. Just need to redrill it....might just use it like it is at first with my 4150 1050 to get it running and then go from there. The car is just giving me so much work to get back together, I have not had time to finish up all of the engine work yet........Keep us posted on your progress.....I sure like the heads you are running....D
 

·
Registered
Joined
·
190 Posts
Discussion Starter #16
Torque........

Thanks! The TRQ sure suprised us for what this combo is! Never expected over 600LBS...........
 

·
Registered
Joined
·
190 Posts
Discussion Starter #18
Updates.

Well the eng is in the car. He has been working on the header fitment and I am helping with the rest of the exh system. Hope to have the car ready in a month or so. I'll get some pics up here tommorrow..........
 

·
Registered
Joined
·
190 Posts
Discussion Starter #19
Update

My friend got atleast one outing with the Fairmont this last summer. Hes been bogged down with work so hes going to get a roll bar installed this winter and some better rear tires. The car ran some 10.90's in full street trim(Nitto drag radials 275/60 full exh etc)@ a 130MPH. Definetly some potential for mid-low 10's! The transbrake has yet to be used. All in all he was very happy especially since he drove the car to and from the track(30 mile round trip)............
 

Attachments

1 - 20 of 28 Posts
Top