Didn't do as well as I hoped, but it didn't break after 22 pulls either, RWJ

/



68 Mustang F/B
67 Fairlane GT

like it has double peaks and moves up and down here and there through the rpm range. Something strange going on there, lost 40 HP from 6800 to 7000 and then gained 80 HP from 7100-7200??? 80 hp in 100 rpm?

It is an awesome engine and for one bad ass car, once sorted out I would think it should go into the 7's.

68 Cougar XR7 street and strip car, 428 4-speed, 3560# of fun, new best 10.43@131.2 1.47 60 ft

served up last year was excellent!.................










...................LOL Got to keep the rest of the country on edge!

Nice numbers, and maybe could have been higher if you'd twisted it tighter; doesn't look like its really ready to fall off yet. Also seems to be pretty rich up at the top end. More power to be had there, for sure...

What is the deal with the big drop in power around 7000? Was the engine missing or something?

What cams are you running in that engine?

Jay Brown

1968 Shelby GT 500 Convertible, 492" 667 HP FE
1969 R code Mach 1, 490" supercharged FE, 9.35 @ 151.20, 2007 Drag Week Runner Up, Power Adder Big Block
2005 Ford GT, 2006 Drag Week Winner, 12.0 Daily Driver
1969 Ford Galaxie XL, 460 (Ho Hum....)
1964 Ford Galaxie 500, 510" SOHC

yes , it looks like if you would have twisted it up to 7700 rpm you would have cracked 900 horsepower

I don't care who you are but that's cool!!! Nice #'s. Thanks for sharing your info RWJ!

"The Poor Mans 427"
http://www.fordification.com/poormans427.htm

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Wes Adams FORD428CJ
Built Ford Tuff With Good Ford Stuff
79 F-250 X-Cab 4x4 with a 6.9 Turbo Diesel
64 Falcon X-Ram 428
55 FORD Truck 4-link Rides on air with X-Ram 428
2000 Yamaha V-MAX VMOA#4277
2000 Yamaha 700 Mountain Max
2001 Polaris 600 Edge X
2001 Polaris 500 SP

That's pretty stout!

I used this dyno because of the supposed data availabe with it. Sometimes the A/F would work or some other data, then part way thru a pull it would stop reading for no reason. Sometimes the A/F would be 13.3, then 11.9. At least an hour each day was spent fiddling with wires and connections or working on someone else's project while I waited. After I finished the dyno operator said his dyno was 30 HP short compared to eveyone else in the area so I'm not sure how much the the motor could actually make. I did take it to 8000 one time to see if it would break and it didn't have any problems, RWJ

What kind of heads, block, crank, pistons, cams? That thing is a beast Wayne!!!!



1912 Model T Ford touring Salmon (ugh!)
1913 Model T Ford Touring original Black paint
1915 Model T Ford Roadster Black
1915 Model T Ford touring Black of course!
1967 Cougar GT 390 Cardinal Red / Black
1968 Cougar GTE 427 Augusta Green / Saddle
http://www.supermotors.net/vehicles/registry/15029/50071-2

the drop @ 7000 it could electical or fuel for the reason for the drop, I think fixing the prolems will get you 900 plus on a good dyno and a better average for sure, good job.

Pretty impressive numbers.

What rockers are you running?


LarryK

1964 Galaxie 2dr 390/6-71/4spd
1964 Country Sedan Wagon 428/5spd
1969 F100 428/4spd
1967 F100 352/now a 4 spd!
1959 B Model Mack

4.375 x 4.375, Dove heads ported, custom grind cams, 750 lift 334 duration, 306 @ .050, splits with tunnel ram, MSD crank trigger, Ford reworked dizzy by Joe Panek, 14:1 comp. Original Ford non adjustable rockers, never gave me any trouble. No trouble with the ignition, has the steadiest timing I've ever had. Dyno operator said he's seen a double peak HP many times???

Vacumn was 12 1/2 to 15. Jay's vacumn leaks are probably at his dizzy, ask me how I know this. I do have a couple of other pulls a few HP over 890, but none in 900.

I might pull the motor down next year to freshen it and redyno it at a different facility, RWJ

You may be correct about the vacuum leaks at the distributor; it would be a logical place to look.

If you decide to dyno it again, I know one dyno where you could really wring it out . Kind of a long drive, but if you're up for it you'd be welcome here. Pick up Barillaro on the way and we'll make it a party...

Jay Brown
1968 Shelby GT 500 Convertible, 492" 667 HP FE
1969 R code Mach 1, 490" supercharged FE, 9.35 @ 151.20, 2007 Drag Week Runner Up, Power Adder Big Block
2005 Ford GT, 2006 Drag Week Winner, 12.0 Daily Driver
1969 Ford Galaxie XL, 460 (Ho Hum....)
1964 Ford Galaxie 500, 510" SOHC

Jay, buy a leak tamer that uses the smoke, one of the best tools I ever bought. I created so much vacum at one point I sucked the rear intake gasket into the engine, RWJ