New coupe

bobcowan · #1 (**permalink**) 10-22-2017, 02:25 PM

That low speed bucking can be caused by a lot of things. Could be something simple like incorrect ignition timing. Or a rotating assembly that's too light. You can get that from any engine, depending on how it's built, and the drive line behind it.

The Coyote is a huge engine. It's a lot wider than the Windsor engines. Getting it to fit in a car not specifically designed for it can sometime be a challenge. But it is a great engine. If the car you purchased is set up for the Coyote, consider installing it. It's a great engine for such a small displacement.

If the car is not set up for the Coyote, I wouldn't try to adapt it. It's a lot more work than you might think it is. Lots of cutting and fabrication involved. If you can easily do that kind of work, great. If not.......

FUNFER2 · #2 (**permalink**) 10-22-2017, 06:40 PM

First, what's the budjet ?

Second, how about a FE ?
A 390/445ci is a engine I was thinking of.

Or maybe a 385 series ?

This time with my engine, I thought of a 385 series like a 460, stroked to maybe a 514. Gobbbbs of power and pretty cheap. But, I found a new 428FE a couple of weeks ago.

Remember, a large cube small block has to work very hard, to get the same power of most big blocks. The 351/427ci sbf is real popular.

FUNFER2 · #3 (**permalink**) 10-23-2017, 07:34 AM

If you're still thinking of the Coyote, this video may confirm your decision !

https://m.youtube.com/watch?v=Z5I8HsvjT-4

Ron61 · #4 (**permalink**) 10-23-2017, 08:11 AM

I have used the 351 stroked to 418, 410, and 408 in my cars and I now have a 408 stroker in the Coupe. I had this engine built to lower the power as I no longer race and I can run this one on what they laughingly call pump gas in this state. It still puts out right at 500/510 horse and that is more than enough for what I do now.

Ron

Blacklemming · #5 (**permalink**) 10-24-2017, 02:40 PM

Quote:

Originally Posted by Ron61

I have used the 351 stroked to 418, 410, and 408 in my cars and I now have a 408 stroker in the Coupe. I had this engine built to lower the power as I no longer race and I can run this one on what they laughingly call pump gas in this state. It still puts out right at 500/510 horse and that is more than enough for what I do now.

Ron

Hey Ron,
Are there any disadvantages of a 408 versus a 351?
How is consumption, ratio 351 versus a 408?
This is going to be my wet weather car, so 500 hp will be more than enough.
Do you also have a tremec tko or have a different gearbox.
regards

Ron61 · #6 (**permalink**) 10-25-2017, 06:13 AM

Sorry that I took so long to answer but I have been pretty busy working on our site lately. I really don't see any disadvantages to the 408 versus a 351 at all. I went with the smaller stroke because of longevity. When you push any engine to its max, a 427 from a 351 for example you are more prone to breakage and problems. I have a friend who has a slightly hopped up 351 in his Cobra and he is very unhappy with it as he wants more power, but to me for what he does that is the most sane car around here. As for consumption ratio, he doesn't get much better mileage than I do and none of these cars get great mileage.

Quote:

Originally Posted by Blacklemming

Hey Ron,
Are there any disadvantages of a 408 versus a 351?
How is consumption, ratio 351 versus a 408?
This is going to be my wet weather car, so 500 hp will be more than enough.
Do you also have a tremec tko or have a different gearbox.
regards

cycleguy55 · #7 (**permalink**) 10-23-2017, 02:01 PM

Quote:

Originally Posted by FUNFER2

Remember, a large cube small block has to work very hard, to get the same power of most big blocks. The 351/427ci sbf is real popular.

Unless I'm missing something, cubic inches are cubic inches. a large displacement small block shouldn't have to "work any harder" than a big block of the same displacement.

Some data:

Roush's 427W crate engines ( ROUSH Performance Crate Engines ) range from 480 to 560 HP (1.12-1.31 HP/CID), and torque from 500-540 ft-lbs. (1.17 - 1.26 ft-lbs/CID)
Brent Lykins dyno results ( Lykins Motorsports, LLC )

FE (15 examples): 0.97 - 1.50 HP/CID, 1.08 - 1.32 ft-lbs/CID

Windsor (425 CID+, 4 examples): 1.14 - 1.49 HP/CID, 1.18 - 1.32 ft-lbs/CID

Ford Performance 427W & 460W crate engines ( https://performanceparts.ford.com/engines/#351 ): 1.05 - 1.25 HP/CID, 1.22 - 1.28 ft-lbs/CID

Worth noting from Brent's data is the top Windsor (445W, 1.49 HP/CID) was running less compression (10.7.1 vs 12:1) and less cam (0.700"/0.690" lift vs 0.760"/0.760") than the top FE (465 CID, 1.50 HP/CID).

There are no material differences, cubic inch for cubic inch.

Blacklemming · #8 (**permalink**) 10-24-2017, 02:54 PM

Quote:

Originally Posted by FUNFER2

First, what's the budjet ?

Second, how about a FE ?
A 390/445ci is a engine I was thinking of.

Or maybe a 385 series ?

This time with my engine, I thought of a 385 series like a 460, stroked to maybe a 514. Gobbbbs of power and pretty cheap. But, I found a new 428FE a couple of weeks ago.

Remember, a large cube small block has to work very hard, to get the same power of most big blocks. The 351/427ci sbf is real popular.

Hey Kevin,
A FE out of the question.
In my opinion, he is too heavy.
And too much maintenance.
The weight distribution must be correct if you want to take turns. (But you know all about that)

Greetings

FUNFER2 · #9 (**permalink**) 10-24-2017, 06:20 PM

If I were still road racing, I'd have a 427 small block.
If I were still drag racing, I'd have a big block FE.
If I were still having fun on the street, I'd have a FE. But wait, I still have both !

I agree, you may enjoy a small block more. Check out Brent's new sm. block video. 600 HP.
I don't, agree with the FE maintenance ?

For you 351C fans....turn up the volume!!!