Finally....dyno results! 507" Cadillac - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > General Discussion> Hotrodders' Lounge
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-27-2012, 08:29 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,198
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 57 Posts
Finally....dyno results! 507" Cadillac

Well after a couple of days we finally found that the Small Body HEI unit that I had built for the 507" Cadillac just wouldn't rev beyond 4100 w/o missing. This was even after we converted it to a trigger only unit an connected it to an MSD box....something wrong somewhere. Luckily Marty Lane at "Maximum Torque Spealties" loaned me one of their Pro Billet dist and it worked flawlessly.

Keep in mind that this engine was built by me for a street rod, was not a max. horsepower effort, reliability and streetability was my main concern. It has 8.7:1 compression and will run on 87 octane crap gas if needed.

This thing even amazed me on the torque output, one of the pulls it made 489 lbs. ft. @ 3300 rpm. The best dyno pull we had was 535.7 lbs. ft. @ 4200 rpm and 466.7 hp @ 5000 rpm. It idles @ 850 and pulls 11" vac., pulls 13" @ 2000 rpm......the best thing is it doesn't leak a drop....anywhere, HATE leaks!. Here's a couple of pics, I had to highlight the torque power curve graph as the printer was running low on ink. Thats shop owner Earl Snow on the carb....the top red line is the torque....not much of a curve huh. VERY happy with the results........Dave
Attached Thumbnails
Click image for larger version

Name:	000_0182.JPG
Views:	62
Size:	143.8 KB
ID:	68159   Click image for larger version

Name:	000_0183.JPG
Views:	80
Size:	168.5 KB
ID:	68160   Click image for larger version

Name:	000_0185.JPG
Views:	93
Size:	56.2 KB
ID:	68161  

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-27-2012, 08:53 PM
Valkyrie5.7's Avatar
www.generationhighoutput. com
 
Last wiki edit: Painting chrome wheels
Last journal entry: Stopping my journal entries here
Last photo:
Join Date: Feb 2010
Location: Phoenix
Age: 27
Posts: 897
Wiki Edits: 15

Thanks: 147
Thanked 71 Times in 62 Posts
Quote:
Originally Posted by 327NUT View Post
Well after a couple of days we finally found that the Small Body HEI unit that I had built for the 507" Cadillac just wouldn't rev beyond 4100 w/o missing. This was even after we converted it to a trigger only unit an connected it to an MSD box....something wrong somewhere. Luckily Marty Lane at "Maximum Torque Spealties" loaned me one of their Pro Billet dist and it worked flawlessly.

Keep in mind that this engine was built by me for a street rod, was not a max. horsepower effort, reliability and streetability was my main concern. It has 8.7:1 compression and will run on 87 octane crap gas if needed.

This thing even amazed me on the torque output, one of the pulls it made 489 lbs. ft. @ 3300 rpm. The best dyno pull we had was 535.7 lbs. ft. @ 4200 rpm and 466.7 hp @ 5000 rpm. It idles @ 850 and pulls 11" vac., pulls 13" @ 2000 rpm......the best thing is it doesn't leak a drop....anywhere, HATE leaks!. Here's a couple of pics, I had to highlight the torque power curve graph as the printer was running low on ink. Thats shop owner Earl Snow on the carb....the top red line is the torque....not much of a curve huh. VERY happy with the results........Dave
Gotta love those numbers. This is why I love big cube engines. Hoping for similar numbers out of my 455 olds, but not expecting nearly as great street manners as yours seems to have.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-27-2012, 10:22 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,198
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 57 Posts
Thanks....big cubes means you don't have to have a maniac for an engine. The proof on mine will be in the driving....which unfortunarely will be a while till I get this '32 Ford Victoria finished = $$$$$$$
Attached Thumbnails
Click image for larger version

Name:	000_0164.jpg
Views:	43
Size:	198.0 KB
ID:	68165   Click image for larger version

Name:	000_0175.JPG
Views:	44
Size:	189.1 KB
ID:	68166  
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-28-2012, 05:40 AM
Registered User
 
Join Date: Feb 2010
Location: Houston
Posts: 24
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What were the spec's
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-28-2012, 09:29 AM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,198
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 57 Posts
It's a '75 Cadillac, .030, cast pistons, Hastings cast rings, PEP forged cap screw rods, stock 10-10 crank, 230/238 dur. hyd. flat tappet cam, non -adjustable shaft mounted roller rockers, LOTS of work done on home ported/polished heads, larger 2.11/1.77 Pontiac SS valves. "Maximum Torque Specialties" single plane intake with a Quick Fuel Tech. 780 vac. sec. carb. The block and heads were cut approx .030 to achieve an 8.7:1 compression ratio.

The rotating assembly was balanced and the entire engine researched for parts compatability for the application it was to be used for.....and then built with tender loving care.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-28-2012, 10:02 AM
35WINDOW's Avatar
Member
 

Last journal entry: Dash Mock-up
Last photo:
Join Date: Dec 2004
Location: utah
Age: 58
Posts: 1,389
Wiki Edits: 0

Thanks: 7
Thanked 18 Times in 17 Posts
Congratulations Dave, those are some great numbers! That is one sexy looking Engine, and you will need a neck brace for that Torque-

With that amount of HP and TQ it just shows what can be accomplished with careful assembly and a well thought out combination-great Job and good work!
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-28-2012, 01:54 PM
Registered User
 
Join Date: Feb 2010
Location: Houston
Posts: 24
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Good deal should be fun to drive. can you get a hyd roller set for these
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-28-2012, 02:35 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,198
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 57 Posts
Thanks 35....now if I can just get the car finished.....and yes you can get all sorts of hipo speed parts for the 425/472/500 Cad including a roller cam. Look at Index, great guys.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 09-28-2012, 03:38 PM
Custom10's Avatar
my KARMA ran over my DOGMA
 

Last journal entry: SS
Last photo:
Join Date: May 2009
Location: Saskatchewan, Canada
Age: 49
Posts: 1,095
Wiki Edits: 0

Thanks: 14
Thanked 24 Times in 22 Posts
Nice!

Are you gonna run such big primaries on the car headers as the dyno headers? You may actaully pick up even more torx on the bottom end with a bit smaller pipe and longer collectors,,,not that its lacking in any stump busting ability
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 09-28-2012, 03:57 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,198
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 57 Posts
Those dyno headers were borrowed from a guy who runs a blown Cad at B'ville. They worked but MAN they were ugly!...the headers I will run in the '32 will be 1 7/8" 4 into 1 due to space limitations. It will have a 3" collector opening and 2 1/2" tubes back through Flowmaster Hushpower II's. There's a young guy in my little hamlet here who just lost his wife, got 2 little kids but he can tig weld beautifully. I'm going to give him the job to help him out.......Yes, I don't think it will be lacking on the torque side.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 09-28-2012, 04:42 PM
Custom10's Avatar
my KARMA ran over my DOGMA
 

Last journal entry: SS
Last photo:
Join Date: May 2009
Location: Saskatchewan, Canada
Age: 49
Posts: 1,095
Wiki Edits: 0

Thanks: 14
Thanked 24 Times in 22 Posts
Good, sounds like you will both benifit from those custom headers being made up. While your at it might what to ask him to stitch in an extra cross member or two on the chassis
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 09-28-2012, 07:52 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,198
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 57 Posts
You know, I already have extra braces made for the rear 4 bar brackets......where they connect up front and at the axle. It's a TCI chassis which is pretty stout but a little extra help won't hurt. The car will only weigh about 2900 lbs. and with 255/65/16 tires it will have limited traction "IF" I get on it. A big set of sticky slicks would be a problem though....not what the car was made for, it's a cruiser

Last edited by 327NUT; 09-28-2012 at 08:03 PM.
Reply With Quote Quick reply to this message

Recent Hotrodders' Lounge 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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
524" Cadillac dyno on horse power TV 327NUT Hotrodders' Lounge 1 05-16-2012 05:28 AM
Update on 507" Cadillac and degreeing cam 327NUT Engine 1 04-27-2012 11:44 PM
dyno results? dougleadfoot Hotrodding Basics 1 11-22-2011 09:56 AM
My Desktop Dyno Results UPandComing Hotrodding Basics 13 09-30-2011 03:47 AM
Dyno results not what I expected. Hawkfan Engine 17 07-16-2011 07:17 PM


All times are GMT -6. The time now is 08:04 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.