427Hotrod

Part II of my 540"/555" engine in my car came out today in Auto Enthusiast magazine.

Last month we covered the rebuild and some parts changes. This month is baseline testing with all my old parts, a favorite high $$$ Braswell Dominator race carb against my old homebuilt Holley, a head swap from my old Ported Brodix 2Xtra's and ported Super Victor to a set of CNC Brodix 3Xtra's and a Brodix as cast intake (port matched)...and then a cam swap....then another carb swap. I was busy!! All the specs, dyno tests and flow numbers are included.

Coming soon will be Dominators against Holley EFI!!

Starts on page 88.

http://editions.amospublishing.com/K...spx?d=20110601

Hope everyone enjoys!

JIM

vetrod62

A great and informative read.

midyearvette

read it last nite also......great read and spans a loong time with comparisons....i especially liked the references to the older brodix heads...

Subfixer

Another great article.

I know first-hand how the "my motor is just like his... except..." works. Absolutely true.

Waiting to see the head to head cam test next.

Avispa

Unbelievable. All the more so when you consider that the basic engine design dates back to the 1963 Mk II "mystery" motor.

I'm interested in the cam test, too. My experience with tight LSA cams is that they idle too rough and don't have good street manners for whatever addtional power you might get out of them.

Of course, that's with my "puny" little 427.

427Hotrod

In my motor you can see that it didn't like the single pattern cam with tight LSA. Not a perfect test because we changed a few things on the cam at the same time...but it definitely showed the trend. Probably would have been happy with the 850'ish HP if we hadn't just seen the 870's right before it! We spent all afternoon trying to find some combo to make that thing come alive and it just wasn't there. That cam would probably do well on a smaller motor with killer heads and some compression.

I did 35+ dyno pulls on that poor motor over two days!

JIM

632C2

This ought to be an interesting read - as usual. I'd just like to know where you find all of your free time.

Steve

427Hotrod

Thanks Steve,,,,especially coming from the King of Dyno test flogging!

Sleep is way over rated.....I can do that when I'm dead!


JIM

devildog

He has lots of time Steve. Jim for the most part, sits around with his Jack & Diet Coke in hand, holding court, tempting more victims with his lure of more horsepower; mean while he has tricked all the rest of us into doing work you could not normally pay us to do.

That is why we call him the TEMPTER. Do not look him in the eye or you will have you engine out and in pieces.

Joe

Avispa

Yeah, devildog, you're right. Jim's about talked me into putting in a 540, and putting the "correct" 427 in a bag in the garage.

devildog

Richard, Dont look him in the eye, run to the light, be careful when he says 'whatcha need tadoo', 'while ya inther'.

BRUISER, last years 3 part magazine article, started out as a repair of leaky rear main seal...ended up being a 850hp 555ci monster with Tranzilla tranny, suspension, and on and on and on.

Seriously, Jim knows more than about this than anyone I have ever known and he is lots of fun. One of the best guys I have ever know.

427Hotrod

Darn...I have failed you! I'll keep trying though!!

Here's a picture of Doug's hyd roller/pump gas 555" with A/C, PS, PB etc etc. Just change up a little bling and it can look as stock as Joe's 400"! Oops..I meant 283/270HP!



JIM

67ratrag

Haven't been on the board in a while, glad to see you're still at it. Makes a 490 CID BB seem kinda whimpy!

MiguelsC2

I am a fresh subscriber and my first issue had your layout. Excellent work. Insane motor!

MiguelsC2

Ps. Great magazine. Right up there with Hemmings Muscle car and Automobile. It's now on my list of gotta haves.

Wasn't this magazine Corvette Enthusiast? Seems all those bitchin about their old subscriptions, jumped the gun. IMHO

devildog

Mike, you said it and I have been thinking it (wife made me be quiet). Some were even telling about throwing their subscription in the trash, if upset about change, OK. But, drop the magazine at a vets hospital, VFW, high school shop class...many who will never even ride in a Vette much less own one would like to at least read about it.

Good value for $19/yr

63 Roadster

...Honey? Remember when I said I wanted a big block in the '63? I think I found one....

1coolC2

Jim,

As always, great read and very informative...backed by real testing/results. Now if we could only get you to start messing with LS series engines.... You do know they are getting 500+ cubes out of those now too

R/
Jeff

devildog

Jeff, funny you should mention that. Jim (aka TEMPTER) was here a couple of days, we have been talking. More later.

Joe

Donny Brass

I was riveted from beginning to end.