Welcome, Guest. Please login or register.
September 21, 2018, 01:09:47 am

Login with username, password and session length
Team Z Motorsports
Tech Section
* SBFTECH Membership Required *
435265 Posts in 37271 Topics by 9537 Members
Latest Member: Mgabski
Search: Advanced search
Advertiser Inquiries
+ My Community
|-+ Small Block Talk
| |-+ Other Ford Engines
| | |-+ 351c, 351M, & 400 Small Blocks
| | | |-+ What size engine works best with these heads?
0 Members and 1 Guest are viewing this topic. « previous next »
Pages: 1 ... 5 6 [7] Go Down Print
Author Topic: What size engine works best with these heads?  (Read 112482 times)
dennis112
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 2348


Location: Amish Wonderland of Central Pa.

« Reply #90 on: December 26, 2014, 08:05:23 am »

N/M
Logged

Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
dennis112
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 2348


Location: Amish Wonderland of Central Pa.

« Reply #91 on: December 26, 2014, 08:08:57 am »


MPH is HP/weight based.  I am not sure how you can effectively measure torque on the dragstrip.

ET is the timed result of how efficiently you can put that power to the ground.  It is the result of numerous variables above and beyond the discussion of just HP vs torque including unmeasurable things.  This includes the chassis, RPM, lightweight rotational assemblies, wind resistance. and a host of other items.
Logged

Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
69 Merc
The Ricer King
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 13801


Location: OC, CA

« Reply #92 on: December 26, 2014, 09:48:10 am »

LOL, so you are saying, with that analogy, a .45 with less than 1000 fps will not stop a guy as quickly as a .9mm with 1300 fps or more?  Ok.....lol.

No, but if you shoot each slug with a sling shot, it would just really hurt.

And BTW, I didn't agree with his analogy either. Energy and acceleration are not the same.


At the time it made sense to me in my head but I now realize that I had that analogy backwards on paper.

And FYI I have a .45 Glock filled with hollow point bullets right next to my bed's pillow for home safety.




With a properly set-up ride (suspension, transmission, tires, gearing, etc) -- do you want 800 ft/lbs of torque at 3000 rpm, 4000 rpm, 5000 rpm or 6000 rpm?      Wink
Logged

Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
Joel5.0
El Hombre
Administrator
Big Block
*****
Offline Offline

Posts: 22510


Location: Puerto Rico
Miracles?.... by appointment only!


« Reply #93 on: December 26, 2014, 10:17:36 am »

 Spt at PC.... the TORQUE vs HP conundrum......

Any situation, case, problem, viewed from a single variable perspective using a tunnel vision..... is simply useless.....specially in drag racing or any type of motorsport.

Torque is what any engine produces and gets directly measured however, at what RPM? This is where HP comes into place in order to understand and see the real behavior of any engine, performance potential and how to set everything else (drivetrain, exhaust, weight limitations/threshold, etc). For example...... lets say I want a 587 lb-ft peak engine setup. The most logical question would be..... at what RPM? For example, take a look at different 587 lb-ft engine setups at different RPM ranges below:


If TORQUE win races........ which would accelerate better?.... even though they all have the same torque curve?  Asking

Logged

ACRONYMS:
LUK  LMK  JIC  BTSTDTRT  YCYDYP  NFI-YTM  SPOBI, and the classic... DILLIGAS

'86 Mustang GT, X-303 cam, Holley DP 700, RG Tran., 289 Heads   Ford Smilie 2


Quote from: Joel5.0
The right to be stupid is inalienable for sure however, there is no such thing as a right to impose stupidity onto others
Great Thoughts will Overwhelm a Feeble Mind
There is never money to do it right, but there's always money to do it over.
Knowledge based on external evidence is unreliable.
He, who doesn't ask, does not deserve an answer.
A mind is like a parachute it only works when it is open.  (oldmanjoe)
If you can't explain it simply, you don't understand it well enough. (Albert Einstein)
Tuning on a Dyno for the track, is like swim practice in a bathtub.
I can explain it for you, but I can't understand it for you. (90lxcoupe)
The proof of understanding is the ability to explain it. (H. Torruella)
Ignorance is bliss, but stupidity is orgasmic.
Fraud and falsehood only dread examination. Truth invites it. (Samuel Johnson)
The chaotic resistance of the opponents leads to the conclusion that they are not prepared to meet the challenge. The problem is already much more psychological then technological. [Bojidar Djordjev]
Individuals are rational and humane... Crowds are reactionary and barbaric. (Jason)
The person who says it cannot be done should not interrupt the person doing it. –Chinese Proverb
Nothing sways the stupid more than arguments they can't understand - Cardinal de Retz
ERStettin
6 Banger
**
Offline Offline

Posts: 55

Location: Afghanistan

« Reply #94 on: December 26, 2014, 01:35:16 pm »

Hey 69 Merc, I was just having fun with you.  I know what you meant.....I think.  Wink  Regardless, it is a interesting subject.  Thanks for your input.
Logged
69 Merc
The Ricer King
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 13801


Location: OC, CA

« Reply #95 on: December 26, 2014, 02:40:25 pm »

Hey 69 Merc, I was just having fun with you.  I know what you meant.....I think.  Wink  Regardless, it is a interesting subject.  Thanks for your input.


Oh, you are totally welcome.     Smiley
Logged

Robert's 1969 Mercury Montego (FordStrokers 408W, QFT 850cfm RQ-AN, Super Victor, 1" aluminum open spacer, CamMotion HR .624"/.609" 251*/256* 108* LSA, 1-3/4"x3-1/2" headers, Dynomax Ultra #17224 mufflers, C6/4R100 trans, 8"/9" 5500 converter, Broader Performance manual V/B, 9" 4.56 Detroit Truetrac, Hoosier Pro Street 31x12.5R15 on 10" rims)

The Merc started here = http://sbftech.com/index.php/topic,27178.0.html  Now = http://sbftech.com/index.php/topic,34648.0.html

Thanks to Jim "Woody" and Nicole Woods @ FordStrokers 408W, Westminster Performance Transmission (W.P.T.) transmissions, TCS Performance converters, Broader Performance valvebodies and last but not least a BIG thanks (always) to my friends here and abroad in the World!
Joel5.0
El Hombre
Administrator
Big Block
*****
Offline Offline

Posts: 22510


Location: Puerto Rico
Miracles?.... by appointment only!


« Reply #96 on: December 26, 2014, 05:36:14 pm »

SO...... torque equates to a 45 ACP and HP to a 9mm on the opposite side or "stopping power"? WTF


 .....
Logged

ACRONYMS:
LUK  LMK  JIC  BTSTDTRT  YCYDYP  NFI-YTM  SPOBI, and the classic... DILLIGAS

'86 Mustang GT, X-303 cam, Holley DP 700, RG Tran., 289 Heads   Ford Smilie 2


Quote from: Joel5.0
The right to be stupid is inalienable for sure however, there is no such thing as a right to impose stupidity onto others
Great Thoughts will Overwhelm a Feeble Mind
There is never money to do it right, but there's always money to do it over.
Knowledge based on external evidence is unreliable.
He, who doesn't ask, does not deserve an answer.
A mind is like a parachute it only works when it is open.  (oldmanjoe)
If you can't explain it simply, you don't understand it well enough. (Albert Einstein)
Tuning on a Dyno for the track, is like swim practice in a bathtub.
I can explain it for you, but I can't understand it for you. (90lxcoupe)
The proof of understanding is the ability to explain it. (H. Torruella)
Ignorance is bliss, but stupidity is orgasmic.
Fraud and falsehood only dread examination. Truth invites it. (Samuel Johnson)
The chaotic resistance of the opponents leads to the conclusion that they are not prepared to meet the challenge. The problem is already much more psychological then technological. [Bojidar Djordjev]
Individuals are rational and humane... Crowds are reactionary and barbaric. (Jason)
The person who says it cannot be done should not interrupt the person doing it. –Chinese Proverb
Nothing sways the stupid more than arguments they can't understand - Cardinal de Retz
347HO
A-1 Super Genious / Director of Maintenance
Section Moderator
Big Block
****
Offline Offline

Posts: 12850


Location: Seattle, Washington
I believe they landed on the moon.


« Reply #97 on: December 26, 2014, 05:37:33 pm »

SO...... torque equates to a 45 ACP and HP to a 9mm on the opposite side or "stopping power"? WTF


 .....
LOL
Logged




... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
Pages: 1 ... 5 6 [7] Go Up Print 
« previous next »
Jump to:  



Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines



408 Stroker