1965 Ranchero 445

[WerbyFord]

@Brad -
I just got the Gonkulator on this. Dragstrip testing of the BBM heads so I was very interested.
Here is what the Gonkulator got with your 4200 stall, after I matched the 60ft which didn't take long:
Torq 579 at 4200
Powr 545 at 5700
1.48-6.82 at 100.0

With a 5000 stall
1.46-6.74 at 100.7
I didn't think it would care since 4200 is already peak torq, but it does seem to care at least in the Gonk. This is still with the RPM intake.
I tried shifting the Gonk at 6400 vs 6200, no difference. Save the revs!

I don't have a lot of Gonk experience with the Yates intake but I just made my best 1st guesses based on the A3 intake so here goes the Gonk
Torq 573 at 440 -6
Powr 566 at 6100 +21 and +400rpm
1.48-6.80 at 100.6 .02 and 0.6mph gain
Then with 5000stall
1.46-6.71 at 101.4
1.46-6.70 at 101.4 shifting 6400, gains .04 sec and 0.7mph vs Ed RPM intake

The old "10 ponies = 0.1 sec = 1 mph" rule doesn't apply here, but I find if you use that rule PERCENT wise, it is still pretty good.
That rule was meant for an engine making about 300 ghp or 250nhp, and you're making near double that. So it figures, you need about 20 ponies gain to get that same effect. Since you only added about 7 ponies (average of -6 torq and +21 hp) but added 21hp, the gain will be somewhat shy of that 0.1 sec and 1.0mph. So it makes sense. As you know better than I, its hard to make a car go faster when it's already high-10s in the quarter equivalent.

For fun I ran the car "fully hooked", which is slightly easier to do in the Gonkulator
1.41-6.63 at 101.6
So I suspect that with the 5000 stall, traction is going to be the rest of the game.

[BOutlaw]

Thanks Werby. I have to admit, I never thought the power and torque would be that high. And, it seems installing a 5K convertor would be worth a solid .10th. I have to keep in mind that this is supposed to be a street car but damn Im having fun running the car. Im heading to North Ala this weekend for a memorial race for one of the gasser guys who passed away unexpectedly last month. I went to Mobile last month but only got one run in on test and tune on Friday night. Ran a 6.83. The next day, first run of the day, a blown FE Willys got all squirrelly thru the lights and a 406 FE powered 57 bounced off both walls on the next pass, same right lane. I was next in line but they closed the track, seems the track was breaking up in that right lane, so I never got another run. Im very happy with the new intake adapter from Jay and the Yates intake I got from Alan Casida. I cranked up the rev limiter per advice from Blair and have not had another missing issue.

Ive had some brake mushiness issues and have had difficulty staging the car. I changed the Master Cylinder to a bit smaller and got a good bleed on the brake system so Im hoping Ill be able to be able to stage with a little more grace this weekend. LOL


Thanks again Werby….Ill post some times from this weekend when I return....Love this website

[BOutlaw]

Haven't posted on this thread for a while, so thought I'd give an update. We've got at least three more races this season. The Ranchero is still running 6.80s. Ive recently installed a new carb and changed the rear shocks. I also got some lettering on the car after putting it off for so long. Im going this week to run the car on a chassis dyno. I'll start another thread on that as I have lots of questions about what to expect and any guidance on Do's and Don'ts. Ive never had a car on a dyno. My next race is Sept 6-7. Ill post some times afterwards...