427 Side-oiler - approx. horsepower?

Gunner · #1 (**permalink**) 12-07-2009, 02:01 PM

Quote:

Originally Posted by elmariachi

At the flywheel or rear wheels? How do you know?

Original flywheel dyno sheet from Danbury is 440 and 475 with no attempts at optimization, just a bolt-together of Joe L's standard 428 build.

I've replaced a boggy Holley with the Speed Demon and run the timing forward a step. While all my dialing in so far has been old-school, I eliminated the bog and it's a lot more responsive. Either the engine was down on power when I got it and I've restored it to original tune, or I've added a bit.

I plan to add some O2 bungs and do a sharper tuning job across the band before a dyno run and tune sometime in the spring.

Anthony · #2 (**permalink**) 12-07-2009, 02:07 PM

Quote:

Originally Posted by Gunner

Original flywheel dyno sheet from Danbury is 440 and 475 with no attempts at optimization, just a bolt-together of Joe L's standard 428 build..

It's a mistake not to get your engine chassis dyno tuned. I picked up about 60 HP and 80 ft-lbs having it dyno tuned. Maybe 400 HP is a good number for just throwing an engine together, but there may be significant room for improvement, like in my case.

Gunner · #3 (**permalink**) 12-07-2009, 02:14 PM

Quote:

Originally Posted by Anthony

It's a mistake not to get your engine chassis dyno tuned. I picked up about 60 HP and 80 ft-lbs having it dyno tuned. Maybe 400 HP is a good number for just throwing an engine together, but there may be significant room for improvement, like in my case.

I'm sure there's power in there for the finding. The original owner never bothered and I can't fit it in until the spring - but I'm definitely headed there.

dcdoug · #4 (**permalink**) 12-07-2009, 02:40 PM

Quote:

Originally Posted by Gunner

I'm sure there's power in there for the finding. The original owner never bothered and I can't fit it in until the spring - but I'm definitely headed there.

That's what I will be doing in the spring as well. Can't wait!

Silverback51 · #5 (**permalink**) 12-07-2009, 03:20 PM

A 427FE thread has more action on the 429/460 forum than the 385 series do.

dcdoug · #6 (**permalink**) 12-07-2009, 03:25 PM

Quote:

Originally Posted by Silverback51

A 427FE thread has more action on the 429/460 forum than the 385 series do.

I noticed that too. Pretty funny, although maybe not for the 385 guys.

Ibr8k4vetts · #7 (**permalink**) 12-07-2009, 03:44 PM

Quote:

Originally Posted by Silverback51

A 427FE thread has more action on the 429/460 forum than the 385 series do.

I would bet there are more FE owners then 385 owners on CC.

Gunner · #8 (**permalink**) 12-07-2009, 03:58 PM

Quote:

Originally Posted by Ibr8k4vetts

I would bet there are more FE owners then 385 owners on CC.

Maybe not. But the 385 folks are all out in their garages wondering how to make the engine fit.

elmariachi · #9 (**permalink**) 12-07-2009, 02:37 PM

Quote:

Originally Posted by Gunner

Original flywheel dyno sheet from Danbury is 440 and 475 with no attempts at optimization, just a bolt-together of Joe L's standard 428 build.

For a point of reference, can you remind me/us what's in your build (block/heads/cam)?

patrickt · #10 (**permalink**) 12-07-2009, 03:44 PM

Quote:

Originally Posted by elmariachi

For a point of reference, can you remind me/us what's in your build (block/heads/cam)?

This has most of the specs on his build. http://www.prestigemotorcar.com/comp...showEO/id,190/

Gunner · #11 (**permalink**) 12-07-2009, 03:51 PM

Quote:

Originally Posted by patrickt

This has most of the specs on his build.

I feel so nekkid having all that stuff on the web.

BTW, the "500HP!!!" claims are used-car salesman smoke. The dyno sheet shows a peak just over 440. The original owner has no idea where the guy got the 500 figure. I think "around 500 HP" is a meaningless yack-marker in this game.