Blown, injected, 4-valve CJ's at Ennis...

Craig Couris · 04-07-2009, 10:43 AM

Just wait until someone actually blueprints one of them.

bill dedman · 04-07-2009, 10:47 AM

Craig,

I don't know whether NHRA has a handle on the drive pulley and blower pulley sizes, but if they don't, "blueprinting" will pale beside what additional boost from overdriving the blower can do for engine output.

Boost is addictive!!!

Jim Cassels · 04-07-2009, 04:43 PM

Quote:

Originally Posted by Craig Couris

Just wait until someone actually blueprints one of them.

Craig,
When do you expect your's to be ready to test?
Jim

bill dedman · 04-07-2009, 04:57 PM

Bruce,
My ancient (yellowed) Moroso slide rule "Power/Speed Calculator 89650" says 730 HP at 140 mph for 3,485 pounds.

I don't think ANY of these calculators are dead-on accurate; too many variables, but they do give a ballpark figure that is good for discussion, I think. That additional (100+ pounds I added) weight was in deference to someone who said that's what they actually weighed at Ennis.

Bruce Noland · 04-07-2009, 05:19 PM

Bill,
My new Moroso has the number at 745 ish. I think all the calculators are within 1% to 2%.

A/SA Fairlane · 04-07-2009, 06:15 PM

Quote:

Originally Posted by Bruce Noland

Bill,
My new Moroso has the number at 745 ish. I think all the calculators are within 1% to 2%.

I'm curious what the Moroso calculator says for DeArmonds 9.71 @134.24 record or Ponds 9.68 @138.79 record ?

bill dedman · 04-07-2009, 06:33 PM

http://store.summitracing.com/partde...5&autoview=sku

MOR-89650

That's the Summit part number for the latest (I assume) version of this old hoss...

The link, above, should take you to that Summit page. $8.95.

Think I'll order a new one; mine is about 40 years old, I think.... no kidding!

Craig Couris · 04-07-2009, 06:34 PM

Jim,

I'll keep you posted.

Craig

hadtobethere · 04-07-2009, 06:56 PM

just curious.......I would hope someone would post when they get a heads race with one of these, as I want to know.........QUESTION ???

Your heads up, you cut a great light , have them by a full tenth at 660', do they make a 'whistling' sound when they blow by you?

Bruce Noland · 04-07-2009, 07:35 PM

Quote:

Originally Posted by A/SA Fairlane

I'm curious what the Moroso calculator says for DeArmonds 9.71 @134.24 record or Ponds 9.68 @138.79 record ?

A/SA,
I'm not sure that Moroso can offer much help for those numbers because they were set at a heavily factored track. But, lets give it a try. What did the cars weigh when they set the records? Not what you think they weighed. The actual weights please.

04-07-2009, 10:43 AM	#1
Craig Couris Banned Join Date: May 2002 Location: Atlanta, Georgia Posts: 122 Likes: 0 Liked 0 Times in 0 Posts	Re: Blown, injected, 4-valve CJ's at Ennis... Just wait until someone actually blueprints one of them.

04-07-2009, 10:47 AM	#2
bill dedman VIP Member Join Date: Feb 2002 Location: Conway, AR Posts: 1,739 Likes: 0 Liked 6 Times in 4 Posts	Re: Blown, injected, 4-valve CJ's at Ennis... Craig, I don't know whether NHRA has a handle on the drive pulley and blower pulley sizes, but if they don't, "blueprinting" will pale beside what additional boost from overdriving the blower can do for engine output. Boost is addictive!!! __________________ Bill

04-07-2009, 04:57 PM	#4
bill dedman VIP Member Join Date: Feb 2002 Location: Conway, AR Posts: 1,739 Likes: 0 Liked 6 Times in 4 Posts	Re: Blown, injected, 4-valve CJ's at Ennis... Bruce, My ancient (yellowed) Moroso slide rule "Power/Speed Calculator 89650" says 730 HP at 140 mph for 3,485 pounds. I don't think ANY of these calculators are dead-on accurate; too many variables, but they do give a ballpark figure that is good for discussion, I think. That additional (100+ pounds I added) weight was in deference to someone who said that's what they actually weighed at Ennis. __________________ Bill Last edited by bill dedman; 04-07-2009 at 05:00 PM.

04-07-2009, 05:19 PM	#5
Bruce Noland VIP Member Join Date: Jun 2002 Posts: 1,855 Likes: 83 Liked 444 Times in 145 Posts	Re: Blown, injected, 4-valve CJ's at Ennis... Bill, My new Moroso has the number at 745 ish. I think all the calculators are within 1% to 2%. __________________ Bruce Noland 1788 STK

04-07-2009, 06:33 PM	#7
bill dedman VIP Member Join Date: Feb 2002 Location: Conway, AR Posts: 1,739 Likes: 0 Liked 6 Times in 4 Posts	Re: Blown, injected, 4-valve CJ's at Ennis... http://store.summitracing.com/partde...5&autoview=sku MOR-89650 That's the Summit part number for the latest (I assume) version of this old hoss... The link, above, should take you to that Summit page. $8.95. Think I'll order a new one; mine is about 40 years old, I think.... no kidding! __________________ Bill

04-07-2009, 06:34 PM	#8
Craig Couris Banned Join Date: May 2002 Location: Atlanta, Georgia Posts: 122 Likes: 0 Liked 0 Times in 0 Posts	Re: Blown, injected, 4-valve CJ's at Ennis... Jim, I'll keep you posted. Craig

04-07-2009, 06:56 PM	#9
hadtobethere Member Join Date: Apr 2006 Posts: 243 Likes: 0 Liked 1 Time in 1 Post	Re: Blown, injected, 4-valve CJ's at Ennis... just curious.......I would hope someone would post when they get a heads race with one of these, as I want to know.........QUESTION ??? Your heads up, you cut a great light , have them by a full tenth at 660', do they make a 'whistling' sound when they blow by you?