611 CID Thor Headed Engine Build...

Page 3 of 3 Previous  1, 2, 3

Go down

Re: 611 CID Thor Headed Engine Build...

Post  Straubtech on June 14th 2016, 10:42 am

cool40 wrote:Is it hurt?

nope. Would have been fun there was some heavy hitters there. Apparently one truck called the BOSS really wanted to see it run.

Straubtech

Posts : 283
Join date : 2015-03-31

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Straubtech on June 27th 2016, 9:14 am

2 pulls.  2 First place finishes. Put 17 ft on 2nd place, 309ft to 292. Second place was a 650CID Bamber Hemi headed build.


Last edited by Straubtech on June 27th 2016, 10:37 am; edited 1 time in total

Straubtech

Posts : 283
Join date : 2015-03-31

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  68formalGT on June 27th 2016, 9:25 am

Straubtech wrote:2 pulls.  2 First place finishes.

Awesome!! Good job!!
avatar
68formalGT

Posts : 774
Join date : 2012-02-13
Location : Pueblo West, Colorado

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  68galaxie on June 27th 2016, 9:25 am

Sweet!
60K should come in first place a few times.

Cheers
avatar
68galaxie

Posts : 273
Join date : 2010-04-13
Location : Edmonton AB

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  cool40 on June 27th 2016, 1:50 pm

Cool
avatar
cool40
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 7135
Join date : 2009-08-31
Age : 47
Location : on the 1/8 mile dyno

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Scott Foxwell on June 29th 2016, 4:23 pm




Scott Foxwell

Posts : 398
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Scott Foxwell on June 29th 2016, 4:26 pm

windsor wrote:Beautiful piece.

Just wondering why you stayed with a standard distributor instead of a belt driven?  
Since the dist. runs off the front of the cam and this is a dry sump and crank trigger there really isn't a need for a belt drive dist. IMO.

Scott Foxwell

Posts : 398
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  68formalGT on June 29th 2016, 7:26 pm

Scott Foxwell wrote:

Is that the firing order on the front of the intake? 1 5 4 8 6 3 7 2

Good looking rig!
avatar
68formalGT

Posts : 774
Join date : 2012-02-13
Location : Pueblo West, Colorado

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Scott Foxwell on June 29th 2016, 7:34 pm

68formalGT wrote:
Scott Foxwell wrote:

Is that the firing order on the front of the intake? 1 5 4 8 6 3 7 2

Good looking rig!
Yes it is.

Scott Foxwell

Posts : 398
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  68formalGT on June 29th 2016, 7:45 pm

Scott Foxwell wrote:
68formalGT wrote:
Scott Foxwell wrote:

Is that the firing order on the front of the intake? 1 5 4 8 6 3 7 2

Good looking rig!
Yes it is.

When should you go to the flathead firing order?
avatar
68formalGT

Posts : 774
Join date : 2012-02-13
Location : Pueblo West, Colorado

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  whatbumper on June 29th 2016, 8:02 pm

We use that firing order on my car. sounds different for sure.

whatbumper

Posts : 3020
Join date : 2009-11-11
Age : 37

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Lem Evans on June 29th 2016, 11:53 pm

The flat head ford firing order is the preferred deal.

1-5-4-8-6-3-7-2

It's what the chevy guys call a 4/7 swap.


Last edited by Lem Evans on June 30th 2016, 12:51 pm; edited 1 time in total

Lem Evans

Posts : 7018
Join date : 2008-12-03
Location : Livermore , Ky

View user profile http://bfevansraceparts.com

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  John Myrick on June 30th 2016, 6:58 am

Lem Evans wrote:The flat head ford firing order is the preferred deal.

1-5-4-8-6-3-7-2

It's what the chevy guys all a 4/7 swap.

What's the reasoning behind changing the firing order ?
avatar
John Myrick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 1073
Join date : 2011-02-05
Age : 55
Location : Maryland

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Scott Foxwell on June 30th 2016, 8:39 am

John Myrick wrote:
Lem Evans wrote:The flat head ford firing order is the preferred deal.

1-5-4-8-6-3-7-2

It's what the chevy guys all a 4/7 swap.

What's the reasoning behind changing the firing order ?
Changes crank pulsing and also fuel distribution in the intake. Only of any real benefit when you're trying to build max power at high rpm.

Scott Foxwell

Posts : 398
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  John Myrick on June 30th 2016, 9:44 am

Thanks
avatar
John Myrick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 1073
Join date : 2011-02-05
Age : 55
Location : Maryland

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Lem Evans on June 30th 2016, 12:53 pm

The crankshafts in very high HP engines seem to have a longer life with the 2/8 swap also.

Lem Evans

Posts : 7018
Join date : 2008-12-03
Location : Livermore , Ky

View user profile http://bfevansraceparts.com

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  XF-66 on June 30th 2016, 5:11 pm

Same deal with my Ford 7.3 diesel, well almost...
The 7-8 cylinders firing in sequence would drop line pressure from one bank of the high pressure oil system for the Heui injection system. It would made for an unstable idle, most owners used a balance tube between the heads to equalize the pulsations or pressure drop between the heads for the hydraulically operated injectors.


Real world question....

I build a 700hp BBF, I spray this motor a couple hundred more horsepower, put the engine under load all the time and the engine sees constant 2500-4000 rpm usage with blasts from idle to redline.
In theory the crank has less stress, the fueling or tune becomes much better, all from the cost of switching out a camshaft and moving around some plug wires?
Say I gain no horsepower, does the above engine benefit in anyway from this Flathead firing order change on this non max build, if so how and where? Cap Walk?
Or does it?

XF-66

Posts : 65
Join date : 2012-09-09

View user profile

Back to top Go down

Re: 611 CID Thor Headed Engine Build...

Post  Scott Foxwell on June 30th 2016, 6:34 pm

XF-66 wrote:Same deal with my Ford 7.3 diesel, well almost...
The 7-8 cylinders firing in sequence would drop line pressure from one bank of the high pressure oil system for the Heui injection system. It would made for an unstable idle, most owners used a balance tube between the heads to equalize the pulsations or pressure drop between the heads for the hydraulically operated injectors.


Real world question....

I build a 700hp BBF, I spray this motor a couple hundred more horsepower, put the engine under load all the time and the engine sees constant 2500-4000 rpm usage with blasts from idle to redline.
In theory the crank has less stress, the fueling or tune becomes much better, all from the cost of switching out a camshaft and moving around some plug wires?
Say I gain no horsepower, does the above engine benefit in anyway from this Flathead firing order change on this non max build, if so how and where? Cap Walk?
Or does it?
Probably not.

Scott Foxwell

Posts : 398
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Page 3 of 3 Previous  1, 2, 3

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum