HP/TQ Figures
HP/TQ Figures
Thread Starter
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Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
HP/TQ Figures
Can somebody run my combo on dd2k or dd3k?
-72 400 block and heads ( heads have smaller guides, no air
passages, small ex bump and smaller chambers)
-bored .020 over
-ertyl 9.5/1 flat tops
-comp cam 268/268 218/218 494/494
-hedman heddars, dual flowmasters,- and h-pipe
-2150 2bbl carb polish to flow 400+ cfm
-stock intake
-stock egnition with a hotter coil
-ported upstream openings on combo
I know dual pattern cams run better but I'm looking for low end tq and the 2150 carb is awesome for offroad, so with the restrictive intake side compared to the free flowing ex side, then I'm thinking the in could use more dur.
-72 400 block and heads ( heads have smaller guides, no air
passages, small ex bump and smaller chambers)
-bored .020 over
-ertyl 9.5/1 flat tops
-comp cam 268/268 218/218 494/494
-hedman heddars, dual flowmasters,- and h-pipe
-2150 2bbl carb polish to flow 400+ cfm
-stock intake
-stock egnition with a hotter coil
-ported upstream openings on combo
I know dual pattern cams run better but I'm looking for low end tq and the 2150 carb is awesome for offroad, so with the restrictive intake side compared to the free flowing ex side, then I'm thinking the in could use more dur.
Posting Guru
Joined: Jun 2002
Posts: 1,099
Likes: 0
HP/TQ Figures
See if this is any help.
Desktop dyno freeware Google Search:
http://www.google.com/search?num=100...eeware&spell=1
Desktop dyno freeware Google Search:
http://www.google.com/search?num=100...eeware&spell=1
New User
Joined: Apr 2003
Posts: 9
Likes: 0
From: bakersville,nc
HP/TQ Figures
according to the specs you gave and the cam you spec'd my engine pro soft dyno says...219.3hp @ 3500 rpm,367.7tq @ 2000 rpm.I also did an auto select on the cam and the program gave a 255*-354" 116centerline cam producing 231hp@3500 and 399tq@2000.these are just estimates because of so many different variables.hope this gives you a baseline to go by.... have fun,go fast...
Thread Starter
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Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
HP/TQ Figures
Thanx!!!
It's a little low, I was hoping for 300hp and 400tq, but that will work for me. If you are not busy try it with 500cfm 2bbl and a 850cfm 4bbl. 75cc heads, cam has 110 centerline
It's a little low, I was hoping for 300hp and 400tq, but that will work for me. If you are not busy try it with 500cfm 2bbl and a 850cfm 4bbl. 75cc heads, cam has 110 centerline
Thread Starter
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Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
Trending Topics
Thread Starter
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Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
HP/TQ Figures
Can anybody else run this combo on dd2k. I want to use a 2150 for offroad ability, but I think my 800cfm Thermo-Quad would make more power, but how much more? Am I losing alot of TQ?
Ok,OK, I just like to see new Hp and Tq specs.LOL
Ok,OK, I just like to see new Hp and Tq specs.LOL
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Elder User
Joined: Sep 2001
Posts: 887
Likes: 1
From: Jax FL
HP/TQ Figures
400 Ford
.020 over 400cfm carb 9.0:1 (thats what the flat tops are) small headers
306hp @ 4500 rpm 414tq @ 2000
315hp @ 4500 rpm 412tq @ 2000 with 4V valves
same combo with 750cfm 4bbl
355hp @ 5000 rpm 430tq @ 3500 torque is basiclly flat from 2k to 4k rpm
372hp @ 5000 rpm 435tq @ 3500 torque is basiclly flat from 2k to 4500 rpm with 4V valves
same combo with 650cfm 4bbl
352hp @ 5000 rpm 429tq @ 3500 torque is basiclly flat from 2k to 4k rpm
368hp @ 5000 rpm 433tq @ 3500 torque is basiclly flat from 2k to 4500 rpm 4V valves
I would say that the 650 4V carb is the better choice. Using 4V valves is up to you.
.020 over 400cfm carb 9.0:1 (thats what the flat tops are) small headers
306hp @ 4500 rpm 414tq @ 2000
315hp @ 4500 rpm 412tq @ 2000 with 4V valves
same combo with 750cfm 4bbl
355hp @ 5000 rpm 430tq @ 3500 torque is basiclly flat from 2k to 4k rpm
372hp @ 5000 rpm 435tq @ 3500 torque is basiclly flat from 2k to 4500 rpm with 4V valves
same combo with 650cfm 4bbl
352hp @ 5000 rpm 429tq @ 3500 torque is basiclly flat from 2k to 4k rpm
368hp @ 5000 rpm 433tq @ 3500 torque is basiclly flat from 2k to 4500 rpm 4V valves
I would say that the 650 4V carb is the better choice. Using 4V valves is up to you.
New User
Joined: Apr 2003
Posts: 9
Likes: 0
From: bakersville,nc
HP/TQ Figures
hey gt40man run my combo on your dyno & see what you come up with? 400 +.030,cleveland 4v heads,280*-579" roller cam,750cfm dp,headers,windage,electric fuel pump,high flow water pump,plastic fan,heads have 2.19-1.73 valves & ported.I think CR is 11-11.5 mine says i have 502 hp - 468 tq
thanks for your time!!!!!
thanks for your time!!!!!
Elder User
Joined: Sep 2001
Posts: 887
Likes: 1
From: Jax FL
HP/TQ Figures
here you go
500hp @ 5500 rpm 520TQ @ 4000 rpm using a dual plane intake and 11:1
508hp @ 5500 rpm 527TQ @ 4000 rpm using a dual plane intake and 11.5:1
529hp @ 5500 rpm 534TQ @ 4500 rpm using a single plane intake and 11:1
539hp @ 6000 rpm 542TQ @ 4500 rpm using a single plane intake and 11.5:1
500hp @ 5500 rpm 520TQ @ 4000 rpm using a dual plane intake and 11:1
508hp @ 5500 rpm 527TQ @ 4000 rpm using a dual plane intake and 11.5:1
529hp @ 5500 rpm 534TQ @ 4500 rpm using a single plane intake and 11:1
539hp @ 6000 rpm 542TQ @ 4500 rpm using a single plane intake and 11.5:1
Thread Starter
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Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
HP/TQ Figures
What would be the best low rpm camshaft that would aproximate the 268/218 comp cam? I was crunched for money or I would have gotten the custom grind from the hotrod article. What inexpensive split duration cam would make more low end with my package? DD2K please, for the new cam.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
HP/TQ Figures
Look at this one:
Comp Cams 255DEH, catalog page http://www.compcams.com/catalog/168_169.html
It is a 255/265 grind that brackets their std hyd cams nicely. It sits in the middle of their 252H, 260H, and 268H single pattern cams nicely.
Comp Cams 255DEH, catalog page http://www.compcams.com/catalog/168_169.html
It is a 255/265 grind that brackets their std hyd cams nicely. It sits in the middle of their 252H, 260H, and 268H single pattern cams nicely.