Horsepower & Torque/good combination? - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans Advertise
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #16 (permalink)  
Old 09-15-2016, 01:18 PM
jokerZ71's Avatar
Wrench Turner
 
Join Date: Jun 2013
Location: Stanton,Tn.
Age: 58
Posts: 4,952
Wiki Edits: 0

Thanks: 613
Thanked 900 Times in 795 Posts
Also,I meant to add earlier,as far torque convertors,you won't HAVE to have a higher stall with this setup,but,it definetly will help & make a big difference.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 09-15-2016, 02:56 PM
Cars, Trucks, Boats
 
Join Date: Dec 2012
Location: Toledo, N.W.Ohio, USA
Age: 72
Posts: 6,338
Wiki Edits: 0

Thanks: 13
Thanked 772 Times in 726 Posts
I get about the same numbers.... 325 - 350 HP... 350 - 370 lb.-ft. torque... As is typical of World/Dart heads, exhaust flow is weak and will be holding HP down... no where comparable to Vortec heads flow... also, the low compression ratio is going to keep torque far out of the 400's...

No worry about high stall converters... by the time lash is taken out of that 218/224 cam it's about equal to a 212/220 hydraulic cam... lift around .445"/457"... figure idle at 600 RPMs neutral, 550 RPMs in gear...

I was wondering about the deck as well... must have shaved a lot off that block...

Power graph will prolly look close to this one. Bit more HP/RPMs, bit less torque, mite flatter torque curve:


.

Last edited by BuzzLOL; 09-15-2016 at 03:01 PM.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 09-15-2016, 04:42 PM
OldTech's Avatar
Registered User
 
Join Date: Jun 2016
Location: S. E. Washington
Posts: 772
Wiki Edits: 0

Thanks: 36
Thanked 148 Times in 129 Posts
Hey Buzz,
The specs on the cam are at .050" lift. Doesn't that mean that the lash has been taken up already?
Reply With Quote Quick reply to this message
The Following User Says Thank You to OldTech For This Useful Post:
jokerZ71 (09-15-2016)
 
  #19 (permalink)  
Old 09-15-2016, 05:06 PM
jokerZ71's Avatar
Wrench Turner
 
Join Date: Jun 2013
Location: Stanton,Tn.
Age: 58
Posts: 4,952
Wiki Edits: 0

Thanks: 613
Thanked 900 Times in 795 Posts
I don't know anything about the Summit heads, but, ths Iron Eagle SS is comparable to the Vortecs.I wasn't implying 400 HP with his current cam as the Hot cam, even tho it has the same @ .050 duration, it's timing events allow it to rev on out & make power to 6000.It also needs 10:1 compression to work well due it's later IVC & timing.The op's cam has timing that works better with lower compression. It has an IVC of 54* compared to the Hot cam's 67*.His cam retains cylinder psi for improved low & midrange, while losing some at the top.This also improves torque.Even with his 9.3:1 compression, his DCR is still over 8:1.I don't think he'll have any problem at all making g
350 HP & 400 ft/lb.
If his current pistons are at .015" in the hole, the decks were cut to approx 9.003".Approx .022" has been cut.Not a big deal.Same as doing a 0 deck.I just misunderstood his post & thought the decks were cut to 9.015".

Last edited by jokerZ71; 09-15-2016 at 05:11 PM.
Reply With Quote Quick reply to this message
The Following User Says Thank You to jokerZ71 For This Useful Post:
AutoGear (09-16-2016)
  #20 (permalink)  
Old 09-15-2016, 06:43 PM
EragonSuperH's Avatar
I invent stupid usernames
 
Join Date: Sep 2015
Location: The Cornhusker State
Age: 21
Posts: 357
Wiki Edits: 0

Thanks: 145
Thanked 22 Times in 19 Posts
Quote:
Originally Posted by 64nailhead View Post
Best of luck - Jim
Thanks, I'll need it.
Reply With Quote Quick reply to this message
  #21 (permalink)  
Old 11-03-2017, 09:59 AM
EragonSuperH's Avatar
I invent stupid usernames
 
Join Date: Sep 2015
Location: The Cornhusker State
Age: 21
Posts: 357
Wiki Edits: 0

Thanks: 145
Thanked 22 Times in 19 Posts
I hate to dig up an old thread, but the engine is built now and currently has about 2,500 miles on it. It's really snotty off the line just as predicted, Idles at 800-900 rpm just as predicted, pulls down really hard in gear, just as you guys predicted. But it's really been a fun truck after putting the new powerplant in. The only difference spec wise is I went with a 600 cfm carb instead of the 650. It will light up (one) tire(s) without power braking even with the tall 3.07 gears. I've had it to 100 mph passing an SUV and it was smooth sailing somehow. Standing revved it to 6000 rpm once and sounds heavenly. Drag raced my brother's 08 impala (not that impressive but its a 40 year old truck vs a 9 year old car), I locked the trans in first and just held my foot to the floor and I pulled away from him. Wasn't paying too close attention to gauges but I think I saw 55 mph at 5500 rpm in first, shifted to second and shot to 70 pretty quick. The only issues I've had motor wise are during breakin I had a rocker come loose because me being forgetful I forgot to tighten the locking set screw and the poly lock was sitting in the head. Luckily nothing was damaged and the engine runs like a top 2,500 miles later.
Reply With Quote Quick reply to this message
The Following 3 Users Say Thank You to EragonSuperH For This Useful Post:
64nailhead (11-03-2017), AutoGear (02-20-2018), BogiesAnnex1 (11-04-2017)
  #22 (permalink)  
Old 11-03-2017, 10:32 AM
Cars, Trucks, Boats
 
Join Date: Dec 2012
Location: Toledo, N.W.Ohio, USA
Age: 72
Posts: 6,338
Wiki Edits: 0

Thanks: 13
Thanked 772 Times in 726 Posts
Oh no, that's fine, we like to hear that an engine we had a hand in turned out great!
Reply With Quote Quick reply to this message
  #23 (permalink)  
Old 11-03-2017, 08:07 PM
64nailhead's Avatar
Registered User
 
Join Date: Dec 2012
Location: Binghamton, NY
Posts: 3,931
Wiki Edits: 0

Thanks: 1,336
Thanked 990 Times in 818 Posts
Quote:
Originally Posted by EragonSuperH View Post
I hate to dig up an old thread, but the engine is built now and currently has about 2,500 miles on it. It's really snotty off the line just as predicted, Idles at 800-900 rpm just as predicted, pulls down really hard in gear, just as you guys predicted. But it's really been a fun truck after putting the new powerplant in. The only difference spec wise is I went with a 600 cfm carb instead of the 650. It will light up (one) tire(s) without power braking even with the tall 3.07 gears. I've had it to 100 mph passing an SUV and it was smooth sailing somehow. Standing revved it to 6000 rpm once and sounds heavenly. Drag raced my brother's 08 impala (not that impressive but its a 40 year old truck vs a 9 year old car), I locked the trans in first and just held my foot to the floor and I pulled away from him. Wasn't paying too close attention to gauges but I think I saw 55 mph at 5500 rpm in first, shifted to second and shot to 70 pretty quick. The only issues I've had motor wise are during breakin I had a rocker come loose because me being forgetful I forgot to tighten the locking set screw and the poly lock was sitting in the head. Luckily nothing was damaged and the engine runs like a top 2,500 miles later.
Thanks for the update - too many of these type of threads get lost. Sounds to me like you ready for a gearing upgrade. Pick a tire size (maybe an inch or two smaller) and a 3.42 posi or the same size and a 3.73 posi. The gear change will feel like another 80-120 hp. Also, I love to see 'driver' builds and really dislike numbers driven builds that get 200 miles a year put on them.

Congrats and keep going
Reply With Quote Quick reply to this message
The Following User Says Thank You to 64nailhead For This Useful Post:
EragonSuperH (11-04-2017)
  #24 (permalink)  
Old 11-04-2017, 08:29 AM
EragonSuperH's Avatar
I invent stupid usernames
 
Join Date: Sep 2015
Location: The Cornhusker State
Age: 21
Posts: 357
Wiki Edits: 0

Thanks: 145
Thanked 22 Times in 19 Posts
Quote:
Originally Posted by 64nailhead View Post
Thanks for the update - too many of these type of threads get lost. Sounds to me like you ready for a gearing upgrade. Pick a tire size (maybe an inch or two smaller) and a 3.42 posi or the same size and a 3.73 posi. The gear change will feel like another 80-120 hp. Also, I love to see 'driver' builds and really dislike numbers driven builds that get 200 miles a year put on them.



Congrats and keep going


Definitely want to put deeper gears in soon but I want to put bigger tires on, these just donít look right being that small. Thinking about 31/10.50r15LT and 3.42 gears. Maybe 3.73 but RIP gas mileage (already sub-10 mpg)


Sent from my iPhone using Tapatalk
Reply With Quote Quick reply to this message
  #25 (permalink)  
Old 11-05-2017, 03:33 AM
Cars, Trucks, Boats
 
Join Date: Dec 2012
Location: Toledo, N.W.Ohio, USA
Age: 72
Posts: 6,338
Wiki Edits: 0

Thanks: 13
Thanked 772 Times in 726 Posts
Quote:
Originally Posted by EragonSuperH View Post
Maybe 3.73 but RIP gas mileage (already sub-10 mpg)
You may be able to get that up to 12+ MPG with some tuning....
Reply With Quote Quick reply to this message
  #26 (permalink)  
Old 11-05-2017, 03:38 AM
Cars, Trucks, Boats
 
Join Date: Dec 2012
Location: Toledo, N.W.Ohio, USA
Age: 72
Posts: 6,338
Wiki Edits: 0

Thanks: 13
Thanked 772 Times in 726 Posts
Quote:
Originally Posted by OldTech View Post
Hey Buzz,
The specs on the cam are at .050" lift. Doesn't that mean that the lash has been taken up already?
Those spec.s are taken with -0- lash... but at .050 lift... after adding lash, actual duration and actual valve lift are less...
Reply With Quote Quick reply to this message
  #27 (permalink)  
Old 11-05-2017, 03:53 AM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 53
Posts: 18,001
Wiki Edits: 0

Thanks: 280
Thanked 3,336 Times in 2,793 Posts
Quote:
Originally Posted by BuzzLOL View Post
Those spec.s are taken with -0- lash... but at .050 lift... after adding lash, actual duration and actual valve lift are less...
Lift will be less because of lash....but .050" lifter rise numbers are going to remain the same.

Only .006" lift (Advertised duration) numbers get affected by lash, .050" duration numbers do not.
Reply With Quote Quick reply to this message
  #28 (permalink)  
Old 11-06-2017, 10:05 AM
EragonSuperH's Avatar
I invent stupid usernames
 
Join Date: Sep 2015
Location: The Cornhusker State
Age: 21
Posts: 357
Wiki Edits: 0

Thanks: 145
Thanked 22 Times in 19 Posts
Quote:
Originally Posted by BuzzLOL View Post
You may be able to get that up to 12+ MPG with some tuning....
What kind of tuning? Idle circuit most likely? And would that be with the 3.73s or would that only be possible with my current 3.07s?
Reply With Quote Quick reply to this message
  #29 (permalink)  
Old 11-06-2017, 12:07 PM
EragonSuperH's Avatar
I invent stupid usernames
 
Join Date: Sep 2015
Location: The Cornhusker State
Age: 21
Posts: 357
Wiki Edits: 0

Thanks: 145
Thanked 22 Times in 19 Posts
Here's a compilation video of some clips of the truck running with the new engine. The first clip is from the breakin process and if you listen closely you can hear the rocker that I forgot to tighten coming loose. Seems to have a mind of its own, sometimes runs smooth like a stock cam, sometimes lopes like you hear in one of the clips. Currently has about 2,500 miles on it so if the cam was going to go bad it would be toast by now.

https://youtu.be/sq0Q5XJyUBQ
Reply With Quote Quick reply to this message
The Following User Says Thank You to EragonSuperH For This Useful Post:
64nailhead (11-06-2017)
  #30 (permalink)  
Old 11-06-2017, 05:13 PM
64nailhead's Avatar
Registered User
 
Join Date: Dec 2012
Location: Binghamton, NY
Posts: 3,931
Wiki Edits: 0

Thanks: 1,336
Thanked 990 Times in 818 Posts
I wouldn't consider anything taller than 3.73 and I would end up choosing a 4.10. If I hot sick of the fuel economy, then maybe I'd swap in an 700. But keep in mind that you need to pick a cam to coincide with your driving rpm meaning that a cam that runs at 2500-5500 will get crappy fuel economy when cruising 1700.
Reply With Quote Quick reply to this message

Tags
build, engine, horsepower, pickup, torque

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
how much horsepower & torque beata Hotrodding Basics 2 04-23-2012 08:40 PM
Air Shocks & drag racing, a good combination? Hawkfan Suspension - Brakes - Steering 2 09-13-2011 07:48 PM
good Torque vs Horsepower article, put the debate to rest! ChevelleSS_LS6 Hotrodding Basics 13 07-30-2006 04:22 PM
engine combination / torque curve ideas mad55chevy Engine 12 09-24-2003 05:45 AM
horsepower & torque general Hotrodders' Lounge 0 10-06-2002 11:50 AM


All times are GMT -6. The time now is 10:05 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.