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Re: comparison 440-2 -440-25 anyone done it
[Re: AndyF]
#984451
05/02/11 08:12 AM
05/02/11 08:12 AM
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Joined: Mar 2006
Posts: 10,198
MI, usa
dvw
I Live Here
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I Live Here
Joined: Mar 2006
Posts: 10,198
MI, usa
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Every dyno test I've seen shows the -2 numbers 25-30HP better. That being said there are more than a few cars running high 8s low 9s with the -25 intake. Take Lens 63 Plymouth. It's been 8.99@150. Cal Tracks at 3500+. Do the math. I figure it takes 950HP to get there. Doug
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Re: comparison 440-2 -440-25 anyone done it
[Re: dvw]
#984452
05/02/11 09:15 AM
05/02/11 09:15 AM
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Joined: Nov 2003
Posts: 5,160
Texas
dannysbee
master
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master
Joined: Nov 2003
Posts: 5,160
Texas
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According to my math it takes every bit of 950 to put a 3500 lbs car in the 8's. What is the rest of the 63 Plymouth's combo?
Getting old just means you were smarter than some and luckier than others.
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Re: comparison 440-2 -440-25 anyone done it
[Re: biff426]
#984453
05/02/11 08:34 PM
05/02/11 08:34 PM
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Joined: Jun 2009
Posts: 644
Minnesota
Barnstorm
mopar
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mopar
Joined: Jun 2009
Posts: 644
Minnesota
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When we built my 500in Balek motor we were happy with my 440-3 1150 dommy..820hp 715tq. Borrowed a 440-25 w/750 afb's. 758hp 670tq same day. Never ran it down the track. Happy with single dom...maybe Indy's new mod-man for NSS?
The little old lady from Pasadena is back!
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Re: comparison 440-2 -440-25 anyone done it
[Re: biff426]
#984457
05/03/11 08:42 AM
05/03/11 08:42 AM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
How about the insert/stuffers Indy sells I have them in the intake has anyone tried the intake with and without the stuffers/inserts thinking about taking them out this is a .060 440 3.75 stroke flat tappet .600 lift cam motor in a 3550lb automatic car any thoughts I have a 512 in the works but it looks like it will be a month or two
We don't use them,they (supposedly) eliminate the backfire problem.We saw no increase in power but certainly a loss in intake volume.We weld the floors for a better runner entrance and eliminate the fuel puddling areas and add popoff valves on each side. 
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Re: comparison 440-2 -440-25 anyone done it
[Re: dannysbee]
#984458
05/03/11 05:17 PM
05/03/11 05:17 PM
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Joined: Mar 2006
Posts: 10,198
MI, usa
dvw
I Live Here
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I Live Here
Joined: Mar 2006
Posts: 10,198
MI, usa
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Quote:
According to my math it takes every bit of 950 to put a 3500 lbs car in the 8's. What is the rest of the 63 Plymouth's combo?
Not sure how much info Jake wants known. 580",572-13 heads by MCH,Indy 440-25 intake,edelbrock carbs,727 trans. Car is very stock glass rolls up,full interior,Cal Tracks,all steel body except hood. They've been working on it a couple years to get where there at.
I can only hope I can come close.
Doug
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Re: comparison 440-2 -440-25 anyone done it
[Re: JAKE68]
#984460
05/03/11 11:21 PM
05/03/11 11:21 PM
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Joined: Mar 2006
Posts: 10,198
MI, usa
dvw
I Live Here
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I Live Here
Joined: Mar 2006
Posts: 10,198
MI, usa
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Quote:
Quote:
Quote:
According to my math it takes every bit of 950 to put a 3500 lbs car in the 8's. What is the rest of the 63 Plymouth's combo?
Not sure how much info Jake wants known. 580",572-13 heads by MCH,Indy 440-25 intake,edelbrock carbs,727 trans. Car is very stock glass rolls up,full interior,Cal Tracks,all steel body except hood. They've been working on it a couple years to get where there at.
I can only hope I can come close.
Doug
Doug you got it real close to the figure for how fast the car is going. That is why we are trying to dial that thing in cause it made much more than that in the dyno. But getting it all working together for the real world is the challenge. We keep unloading the tire about ten feet out after we had put on the wheelie bars. And that is affecting our 60's .Doug you have some good pieces there you should be fine. You will be fast. Stepping up your program like that is a little more work then before but its a nice feeling of accomplishment as you sort it out. The hardest part having that much power is keeping it consistent and making small steps. But chasing is fun!!!!!That power on the big end is awsome. We have been very fortunate how consistent the car has been run after run. Now if my driving could only... aw never mind.
You just need the challenge of racing against me again. I'm sure you'll zero right in. I worked on it tonight. Lowered down off the jig so we can get at the roof to block it.
Doug
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Re: comparison 440-2 -440-25 anyone done it
[Re: biff426]
#984461
05/08/11 08:26 PM
05/08/11 08:26 PM
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Joined: Jan 2003
Posts: 14,603
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,603
So. Burlington, Vt.
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on a 557" motor with -1 heads and .714 lift cam, i actually saw better power with the -25 than a -2 or -3, or -3X......about 25hp more.
around 725hp with the single planes and a 4500 carb, and about 750hp with the -25 and 2 X 750's.
i think most people dont put anywhere near enough jet in the carbs when running the -25.
i had Carter 750's on it with 119 jets in all 8 holes.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: comparison 440-2 -440-25 anyone done it
[Re: JAKE68]
#984462
05/08/11 08:40 PM
05/08/11 08:40 PM
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Joined: Jul 2005
Posts: 1,162
s e mich
ro23car
super stock
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super stock
Joined: Jul 2005
Posts: 1,162
s e mich
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Quote:
Quote:
Quote:
According to my math it takes every bit of 950 to put a 3500 lbs car in the 8's. What is the rest of the 63 Plymouth's combo?
Not sure how much info Jake wants known. 580",572-13 heads by MCH,Indy 440-25 intake,edelbrock carbs,727 trans. Car is very stock glass rolls up,full interior,Cal Tracks,all steel body except hood. They've been working on it a couple years to get where there at.
I can only hope I can come close.
Doug
Doug you got it real close to the figure for how fast the car is going. That is why we are trying to dial that thing in cause it made much more than that in the dyno. But getting it all working together for the real world is the challenge. We keep unloading the tire about ten feet out after we had put on the wheelie bars. And that is affecting our 60's .Doug you have some good pieces there you should be fine. You will be fast. Stepping up your program like that is a little more work then before but its a nice feeling of accomplishment as you sort it out. The hardest part having that much power is keeping it consistent and making small steps. But chasing is fun!!!!!That power on the big end is awsome. We have been very fortunate how consistent the car has been run after run. Now if my driving could only... aw never mind.
you guys are making me nervous.
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Re: comparison 440-2 -440-25 anyone done it
[Re: fast68plymouth]
#984463
05/08/11 09:55 PM
05/08/11 09:55 PM
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Joined: Mar 2006
Posts: 10,198
MI, usa
dvw
I Live Here
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I Live Here
Joined: Mar 2006
Posts: 10,198
MI, usa
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Quote:
on a 557" motor with -1 heads and .714 lift cam, i actually saw better power with the -25 than a -2 or -3, or -3X......about 25hp more.
around 725hp with the single planes and a 4500 carb, and about 750hp with the -25 and 2 X 750's.
i think most people dont put anywhere near enough jet in the carbs when running the -25.
i had Carter 750's on it with 119 jets in all 8 holes.
I'm curious. You used 119 with a metering rod in the primary as well as a 119 in the secondary without a rod? The stock jetting uses far smaller secondary jet size than primary. Is there a reason for jetting the secondary with so much more jet area? I'm always looking to improve.
Doug
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Re: comparison 440-2 -440-25 anyone done it
[Re: dvw]
#984464
05/09/11 12:39 AM
05/09/11 12:39 AM
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Joined: Jul 2010
Posts: 417
reynoldsburg,ohio
poppaj
mopar
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mopar
Joined: Jul 2010
Posts: 417
reynoldsburg,ohio
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Getting these carbs dialed-in takes much more than throwing large jets in them. The set I have on our car has near to stock jetting. Opening up areas internally and reworking the tops is where we got our set flowing, using the large needle and seat assemblies is also a must. Gary is one of the best around at getting these carbs to work.
Damon Kuhn of Diamondback engines built my carbs initially, he is a whiz on these carbs. If you look on the Diamondback website in his "White Pages" he lists some mods that will get you going in the right direction. Combined with the 440-25 intake these carbs can make power but I feel it is a real challenge to get peak performance. Every motor combo takes a different setup as well.However,any way this setup is done, a 2x or 3x single plane intake with a good dominator will easily perform much better. The long flat runners in the 440-25 are a stumbling block. A nice sheet metal tunnel ram or even a Indy tunnel ram would be the way to go. The intake stuffers would help your motor if it is less than 500 cubes, larger motors need the plenum volume.
poppaj
AA/NSS 65'Coronet "Whompin Wedge"
Pop & Son Performance 557" B-1 power
John Holt Chassis
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Re: comparison 440-2 -440-25 anyone done it
[Re: dvw]
#984465
05/10/11 10:08 PM
05/10/11 10:08 PM
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Joined: Jan 2003
Posts: 14,603
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,603
So. Burlington, Vt.
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basically, it was lean.....so i just kept adding jet to get the A/F ratio in line.
each time i added jet, it made more power.
119's in all corners is where it ended up.
and yes, the primary side still had the rods in them.
i'm not saying this is what all combo's will need, i'm just saying that some of these combo's can use some pretty big jets.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: comparison 440-2 -440-25 anyone done it
[Re: Streetwize]
#984468
05/16/11 09:53 PM
05/16/11 09:53 PM
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Joined: Mar 2006
Posts: 10,198
MI, usa
dvw
I Live Here
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I Live Here
Joined: Mar 2006
Posts: 10,198
MI, usa
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Quote:
I'm just thinking out loud here, wouldn't using dual 800's of the AVS (not AFB) Eddie carbs give you at least as good, if not more tunable results running a dual quad set-up?
I've always preferred the AVS over the AFB because they're much easier to twaek and always seem to run as well or better at WOT 
The people I've talked to says that all the Carter/Eddy carbs run about the same. No one I know of is running any staggered jetting either. I agree it might be worth some. Also none that I know of have had anything other than a modified max wedge style scoop which could affect jetting as well.
Doug
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