On Dyno Tommorow..Anyone Want to Guess number?? - 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
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> General Rodding Tech
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #16 (permalink)  
Old 01-15-2011, 07:31 PM
deckofficer's Avatar
www.tbuckets.lefora.com/
 
Last wiki edit: List of hotrodding forums
Last journal entry: Trans swap
Last photo:
Join Date: Jan 2011
Location: Northern and Southern California
Age: 61
Posts: 258
Wiki Edits: 12

Thanks: 14
Thanked 35 Times in 34 Posts
Well, what did it pull at 5000? My torque built 383 has its hp falling off at just 4050 rpms.

Bob

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 01-15-2011, 08:27 PM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I'm not to sure mid 300 I think. All I know is he said that he feels it should be around 400, but.. we will see.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 01-15-2011, 08:46 PM
deckofficer's Avatar
www.tbuckets.lefora.com/
 
Last wiki edit: List of hotrodding forums
Last journal entry: Trans swap
Last photo:
Join Date: Jan 2011
Location: Northern and Southern California
Age: 61
Posts: 258
Wiki Edits: 12

Thanks: 14
Thanked 35 Times in 34 Posts
Good to hear, if you hit 350 hp @ 5000, you already exceeded my guess by 5 hp and I think your motor will keep producing more power for at least another 900 rpms. My guess of your torque might be close.

Bob
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 01-17-2011, 09:54 AM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Well I'm thinking I will have the numbers to post this week or 1st part of next week. I don't think I will be where I would like to be, but are we ever there.....lol
Reply With Quote Quick reply to this message
  #20 (permalink)  
Old 02-26-2011, 06:29 PM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Sorry, its been so long, but had to go on a short deployment. So I have not been able to make it back to the dyno guy. Maybe soon. I did go to the track today. I ran a 11.7. I was spinning coming off the line and was not hitting my shift at the right times. It will take me some time to dial it in, but I feel I can easily run low 11s.
Reply With Quote Quick reply to this message
  #21 (permalink)  
Old 02-26-2011, 06:46 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Two questions- what are the cam duration specs at 0.050" and what vehicle is the engine in?
Reply With Quote Quick reply to this message
  #22 (permalink)  
Old 02-26-2011, 07:00 PM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Well the car is a 68 Camaro wgt is 3400 with out me. As far as the cam specs... Allot of controversy on that. The guy I had assemble my engine, I also had him order me a custum gind. He swears the duration at 50 is INT: .288 EXH: .292. I ask him many times to make sure that was not advertised duration and he said no it was at 50. So I have my doubts.
Reply With Quote Quick reply to this message
  #23 (permalink)  
Old 02-26-2011, 07:12 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by obengston
Well the car is a 68 Camaro wgt is 3400 with out me. As far as the cam specs... Allot of controversy on that. The guy I had assemble my engine, I also had him order me a custum gind. He swears the duration at 50 is INT: .288 EXH: .292. I ask him many times to make sure that was not advertised duration and he said no it was at 50. So I have my doubts.
That would be a hell of a cam. BTW, the specs for duration are in degrees, as in 288 intake and 292 exhaust.

A cam w/that much duration wouldn't be able to use an ignition timing curve per se, most likely you'd need to lock it in at the total advance, possible using a vacuum advance and a timing retard (or separate starter and ignition switches) to allow it to start when hot w/o kicking back or dragging the starter.

There wouldn't be enough vacuum for power brakes and it would be idling above 1000 RPM. The idle would be decidedly rough. Not just some lope- I mean ROUGH.

This sound like what you have?
Reply With Quote Quick reply to this message
  #24 (permalink)  
Old 02-26-2011, 07:19 PM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Not exactly lol. I didn't have to much vac so I did away with the power brakes and went with hydro. The timing is set at about 19-20 initial with total right now at about 36. Idles at about 8-900. I quess the only way I will ever know is buy another one that way I can have it... Anyway I ask him so many times, and he said that it was basicall a race cam that was based off a 700 lift, but custum downed for what I wanted.. what ever that meant. I quess I need to put more pressure on him to call the guy while I'm there and ask him.
Reply With Quote Quick reply to this message
  #25 (permalink)  
Old 02-26-2011, 07:23 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Well, whatever you DO have for a cam, the engine seems to like it, you're not going to run those numbers traction limited, unless the engine is making some pretty serious power for a streetable combo.

Do you know the MPH?
Reply With Quote Quick reply to this message
  #26 (permalink)  
Old 02-26-2011, 07:29 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Using the 11.7 ET and guessing the speed to be 124 MPH, the Wallace calculator says:

Your HP computed from your vehicle ET is 377.62 rear wheel HP and 419.57 flywheel HP.
Your HP computed from your vehicle MPH is 467.22 rear wheel HP and 519.13 flywheel HP.

120 MPH:

402.63 rear wheel HP and 447.36 flywheel HP

Last edited by cobalt327; 02-26-2011 at 07:39 PM. Reason: Add link.
Reply With Quote Quick reply to this message
  #27 (permalink)  
Old 02-26-2011, 07:34 PM
001mustang's Avatar
Registered User
 
Last photo:
Join Date: Dec 2008
Location: TN
Posts: 792
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
why not use dial indicator and degree wheel to map your actual lift?
Reply With Quote Quick reply to this message
  #28 (permalink)  
Old 02-26-2011, 07:41 PM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
60' 1.6858
330' 4.8579
1/8 7.4958 92 mph
1/4 112 mph

I was also shifting at the wrong time and was spinning hard would let up then smash the gas again. I have to get use to it, and get it dialed in better, but I think I can easily hit lower 11s.

Don't know how to use the dial to figure the duration out...
Reply With Quote Quick reply to this message
  #29 (permalink)  
Old 02-26-2011, 07:42 PM
obengston's Avatar
USMC
 
Last photo:
Join Date: Sep 2009
Location: Jacksonvills, NC
Age: 43
Posts: 167
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
My lift is 600
Reply With Quote Quick reply to this message
  #30 (permalink)  
Old 02-26-2011, 07:47 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Using 11.7 ET and 112 MPH:

Your HP computed from your vehicle ET is 377.62 rear wheel HP and 419.57 flywheel HP.
Your HP computed from your vehicle MPH is 344.28 rear wheel HP and 382.53 flywheel HP.

I'd guess your RWHP would be somewhere close to 400 HP, w/all the spinning and shift probs. Hard to really say until you sort things out, preferably at the track w/good tires so traction is much less of an issue. Then the 1/4 mile top speed and the weight will get you a good estimation.
Reply With Quote Quick reply to this message

Recent General Rodding Tech 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:

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
69 Nova 454 going on dyno lets hear your guess tjpounder Hotrodding Basics 45 06-15-2010 09:26 PM
hp guess, anyone with a pc dyno dejo Engine 14 11-22-2006 05:49 PM
vin number or serial number rudy ballesteros Introduce Yourself 1 05-16-2006 11:27 PM
I guess I'm new too =) crashtestjoey Introduce Yourself 4 06-22-2004 06:24 PM


All times are GMT -6. The time now is 12:04 PM.


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.