MPG with 351 Ford Racing crate engine

[dan512]

Yes I was thinking along the same lines. It's just a 351 with 380hp. Don't even want to know where I'll end up if I floor t.

Maybe I should get soemone else too look at the carb setup.

[Ace23]

Originally Posted by dan512

Yes I was thinking along the same lines. It's just a 351 with 380hp. Don't even want to know where I'll end up if I floor t.

Maybe I should get soemone else too look at the carb setup.

Gas mileage really isn't that big of an issue but it is one of those things were if I should be getting 15mpg I want my 15mpg....not 8mpg. Personally its annoying getting crappy mileage.

Does your car run well? I don't think it hurts you one bit to set aside $300-$400 and get it tuned on a dyno. The other option is to buy your own wideband and tune it yourself. If you are handy enough, patient and understand carbs then the wideband street tuning would be the best option. I have no idea why people don't tune these things themselves or invest $400 in a dyno tune. Too many people set the float bowls and get the idle right and think "yeah this thing is tuned!"

[jhv48]

I'm not a proponent of dyno tuning for cruise cycles. Every dyno chart I've seen begins at 3500 rpm. The best way to set your carb for cruise is to reduce the size of the primary main jet until the car starts to buck when cruising at a steady speed on a flat surface in third gear. Say 2500 rpm. Then raise the jet size until it cruises comfortably at that speed. The bucking indicates a lean condition. Then take it for a cruise and check your plugs. That's about as close as you can get without using a Wideband.
Tune wot on a dyno!

[Bartruff1]

This is my second one and 8 around town and 14 on the road...the fuel gages are seldom more than a estimate so I just start looking to refuel after 100 miles....that is ok with me....3 hours in one of these things is about a half hour too long, so I am ready for a walk about...

[Bob Hess]

Drive it like you stole it = 4 MPG
Drive it like you're 72 years old = 10 MPG

351W by Performance Engineering stroked to 408 with a 650 CFM Speed Demon. 476 HP 467 Torque.

[1985 CCX]

I get

Highway 10 mpg
City.....6.57 mpg

[Ace23]

This is kinda off topic but I REALLY wish someone made a twin screw supercharger for a 351 Windsor platform. If this was available I would buy one without a doubt as long as it was a well engineered product. Whipple / Kennebell and TVS need to step up! You would have insane amounts of power and be able to run a 351 or 351 stroked motor.....the gas mileage would be great and the exhaust wouldn't be muffled like a turbo setup.

[cycleguy55]

Originally Posted by Ace23

This is kinda off topic but I REALLY wish someone made a twin screw supercharger for a 351 Windsor platform. If this was available I would buy one without a doubt as long as it was a well engineered product. Whipple / Kennebell and TVS need to step up! You would have insane amounts of power and be able to run a 351 or 351 stroked motor.....the gas mileage would be great and the exhaust wouldn't be muffled like a turbo setup.

Easily done:
1. Weiand Supercharger: https://www.holley.com/products/supe...ts/77-174FSB-1 (Or any other 302W supercharger kit)
2. Price Motorsports adapters (351W Block,351 Windsor Heads, 302 Intake): AP-01 and AP-04

You'd need a different drive belt than comes with the 302W supercharger kits, but that s/b easy.

Let us know how it turns out.