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Re: MOST FLOW OUT OF A SET OF -1S
[Re: Randy..]
#1193635
03/08/12 10:12 PM
03/08/12 10:12 PM
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Joined: Aug 2008
Posts: 4,066
Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,066
Mo.
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Quote:
just wondering, bought a set from a member and flow sheet was 385 at .700, thought that was a killer number for a -1.
Any ideal on who ported them to get those #'s?
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: racerx]
#1193636
03/08/12 10:17 PM
03/08/12 10:17 PM
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Joined: Jul 2010
Posts: 791
Bama
Randy..
OP
super stock
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OP
super stock
Joined: Jul 2010
Posts: 791
Bama
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: racerx]
#1193638
03/09/12 12:47 AM
03/09/12 12:47 AM
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Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
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Mine originally flowed 378 at .700 and I think 380 at.800.
I had 2.30 intake valves put in and saw a five to six percent jump in flow, (399 cfm at .800) but ZERO gains.
there was a dip in flow around .400 that may account for part of the lack of gain. The heads flow about the same as before at that point.
I wouldn't worry so much about the ultimate numbers as I would how fast guys are going with them. That is a much better bench mark. My best ET/mph was before the 2.3 valve mods, with a 280/288/110 cam with .765 intake lift. I put a 283/296/112 cam in with .775 lift and got very little if any improvement.
-1 heads are about all done somewhere around 850 to 900 hp, depending on build.
Last edited by gregsdart; 03/09/12 12:50 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: gregsdart]
#1193639
03/09/12 01:04 AM
03/09/12 01:04 AM
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Joined: Aug 2006
Posts: 290
Cincinnati, Ohio
d7cook
enthusiast
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enthusiast
Joined: Aug 2006
Posts: 290
Cincinnati, Ohio
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Quote:
Mine originally flowed 378 at .700 and I think 380 at.800.
I had 2.30 intake valves put in and saw a five to six percent jump in flow, (399 cfm at .800) but ZERO gains.
there was a dip in flow around .400 that may account for part of the lack of gain. The heads flow about the same as before at that point.
I wouldn't worry so much about the ultimate numbers as I would how fast guys are going with them. That is a much better bench mark. My best ET/mph was before the 2.3 valve mods, with a 280/288/110 cam with .765 intake lift. I put a 283/296/112 cam in with .775 lift and got very little if any improvement.
-1 heads are about all done somewhere around 850 to 900 hp, depending on build.
Rightly or wrongly I look at average flow from .200 to .600 to compare heads. You are right too many people get hung up on peak .700 or .800 numbers when they aren't runnning enough cam or rpms for that number to matter IMHO.
1967 Coronet, 1989 Daytona tube chassis.
Former cars, 66 Charger, 67 R/T, 69 Coronet, 67 Dart GT.
-Banned for life from V8Buick.com-
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: Randy..]
#1193642
03/09/12 07:41 PM
03/09/12 07:41 PM
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Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
MRMOPAR622
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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I would try and copy the engine that the heads come off of as close as possible.Also might be a good idea to find out what converter & gear ratio he was using. PS It's nice to see more Mopars showing up in AlaBama!!! 
Last edited by MRMOPAR570; 03/09/12 07:49 PM.
"To Be The Man'You Have Got To Beat The Man"
"T/D and Pro-Bracket Racer"
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: Edge]
#1193644
03/09/12 09:53 PM
03/09/12 09:53 PM
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Joined: Jul 2010
Posts: 791
Bama
Randy..
OP
super stock
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OP
super stock
Joined: Jul 2010
Posts: 791
Bama
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single fogger.  and i am putting twin 75mm turbo's on them.
Last edited by Randy..; 03/09/12 09:55 PM.
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: 1967dartgt]
#1193646
03/09/12 10:06 PM
03/09/12 10:06 PM
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Joined: Jul 2010
Posts: 791
Bama
Randy..
OP
super stock
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OP
super stock
Joined: Jul 2010
Posts: 791
Bama
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: Gary Robbins]
#1193649
03/10/12 01:30 PM
03/10/12 01:30 PM
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Joined: Jan 2004
Posts: 903
Saskatchewan, Canada
cudabin
super stock
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super stock
Joined: Jan 2004
Posts: 903
Saskatchewan, Canada
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N/A my 557ci made 955hp (Methanol injection)w/ 345cc CNC'd -1's that flow 382 at .800 these are Jeff's from Modern's program. Cam is .875" (less lash and deflection)so i am opening them up as far as reasonable  Car weighs 2,850 and at 4,000 foot DA ran 8.80's, but there is more left in the combo... If you want more than that N/A you need a better head IMO. Cheers, Arnie
67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...)
70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.
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Re: MOST FLOW OUT OF A SET OF -1S
[Re: Gary Robbins]
#1193650
03/10/12 04:13 PM
03/10/12 04:13 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
enthusiast
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enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
Quote:
I thought so.  People often forget to mention the power adders. 
Yeah and people forget to say that their 2300lb chassis car can't run 8.30'S n/a either let alone drive it down to the local drive in legally if wanted to....I never see anyone running down your daytona chassis car because it's not super fast,so why do you jump at every chance to run down power adder cars  Sorry for the hyjack to OP...
Power adders are todays racing!! Just the way it is. When the street cars are a full second or two faster than dedicated race cars what option is there? Index class or get with the rest (Non Mopar)people as that is what they are doing. Iam still trying to figure out why the forum on here was done away with. Dont matter what (Mopar Type head) you buy,You wont compete with the rest all out.Weight? doesnt seem to matter as much when you see 3800 Lbs cars running 7.30's same as the pipe racks, now does it? Twin Turbo's Heck yes your 1's will be faster than the rest !
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