New to the board, I have a question.

[LegofHoof]

Hi to everyone. I am sure that this has been asked and answered previously but appreciate any input or directions/links to previous discussions.

What are the differences between the "Ford" Hemi's and the standard Hemi based engines as used in the NHRA. Thanks!

 

[Toejam]

Hi to everyone. I am sure that this has been asked and answered previously but appreciate any input or directions/links to previous discussions.

What are the differences between the "Ford" Hemi's and the standard Hemi based engines as used in the NHRA. Thanks!

Other than the Name on the Valve cover I doubt any! If there is I haven't heard about it!

 

[flapjack]

Other than the Name on the Valve cover I doubt any! If there is I haven't heard about it!

And don't forget the blue anodization.

 

[flapjack]

I found

SPEEDtv.com Forums | THE BOSS 500 NITRO MOTOR IS A SCAM

to be interesting. They talk about some of the changes they have made, but I've seen a picture of a cylinder head off of Tasca's engine and it sure looks HEMI based to me.

 

[d'kid]

I found

SPEEDtv.com Forums | THE BOSS 500 NITRO MOTOR IS A SCAM

to be interesting. They talk about some of the changes they have made, but I've seen a picture of a cylinder head off of Tasca's engine and it sure looks HEMI based to me.

Spec'd.... JFR wanted to change the Valve Angles, port height and shape. But, honestly, the fuel engine today is as related to the elephant as man is to ape. The whole cam height to pushrod, to rocker to valve spring is a collection of binding points... There was a long list of new ideas JFR and FORD wanted to make, and NHRA said no to all. All they got was a beefier bottom end.


d'kid
I miss my Whale and Donovan 417

 

[mike]

spec'd.... Jfr wanted to change the valve angles, port height and shape. But, honestly, the fuel engine today is as related to the elephant as man is to ape. The whole cam height to pushrod, to rocker to valve spring is a collection of binding points... There was a long list of new ideas jfr and ford wanted to make, and nhra said no to all. All they got was a beefier bottom end.


D'kid
i miss my whale and donovan 417

exactly!!!

 

[Gary H]

NHRA pretty much set the specs. They were going to use the BOSS 429 bore spacing too, but NHRA said no. AFTER they put alot of money into it...

 

[Toejam]

Why would NHRA allow them to come up with another motor, how much would that end up costing these teams in the long run?

 

[N2Nitro]

...And Dodge still calls there new motor a "hemi" too, have you seen pics of the heads?

 

[d'kid]

Why would NHRA allow them to come up with another motor, how much would that end up costing these teams in the long run?

Joe, They are machining their own blocks and heads. It would not have cost any more than they are spending now.

d'kid

 

[BF]

Joe, They are machining their own blocks and heads. It would not have cost any more than they are spending now.

d'kid

I imagine research and developement would cost more than the actual production if the NHRA allowed new/different specs. At the very least it would add to their costs.

 

[Sean D, shondoo]

...And Dodge still calls there new motor a "hemi" too, have you seen pics of the heads?

Exactly........

Sean D

 

[Rajunz]

...And Dodge still calls there new motor a "hemi" too, have you seen pics of the heads?

WJ called it a twisted wedge......................

 

[LegofHoof]

Thanks for the reply's fellas. I wasn't trying to start a Mopar versus Ford thread. I realize the hemi based fuel engines are far removed from the production versions. I was only curious as to what extent the Ford hemi was different from the traditional hemi. Doesn't sound like there is any real difference except badging. So as I was telling my buddy at work it was indeed a Mopar sweep of the Mopar nationals last weekend except for the bikes.

 

[mike]

Thanks for the reply's fellas. I wasn't trying to start a Mopar versus Ford thread. I realize the hemi based fuel engines are far removed from the production versions. I was only curious as to what extent the Ford hemi was different from the traditional hemi. Doesn't sound like there is any real difference except badging. So as I was telling my buddy at work it was indeed a Mopar sweep of the Mopar nationals last weekend except for the bikes.

LOL....I guess that's one conclusion you could draw from this conversation...

 

[LegofHoof]

LOL....I guess that's one conclusion you could draw from this conversation...

Caught me! Yes I am a Mopar fan but I am willing to give JFR and others running Mustangs their due if its been earned. Most of the evidence indicates otherwise, so now I know why these guys always wink when they mention their, "Ford Hemis".