#1  
Old 05-23-2020, 03:13 PM
dci dci is offline
Ultimate Warrior
 
Join Date: Feb 2003
Posts: 1,256
Smile DCI Motorsports / Judes Schnabel Pump Gas 535 RA5

https://www.facebook.com/judes.schna...generic_tagged

__________________
Don Johnston
DCI MOTORSPORTS LLC
330-850-5050 shop
330-628-3354 cell
Designer if the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads !!!!!
  #2  
Old 05-23-2020, 04:19 PM
mgarblik mgarblik is offline
Ultimate Warrior
 
Join Date: Mar 2005
Posts: 6,035
Default

Congrats on the engine's performance so far. The first thing we did when we bought a new Superflow SF-901 in 1998 was take off the hydraulic throttle control and throw it in a box never to be seen or used again. It wouldn't work right on a Q-jet either. Not enough travel. Single Holley 4bbl. is the only thing it works right on out of the box. 22 years later, and I see they never corrected the issues. They sell a retrofit kit to cable operation or you can make it yourself. Best of luck the rest of the dyno session.

  #3  
Old 05-23-2020, 04:39 PM
Stan Weiss's Avatar
Stan Weiss Stan Weiss is offline
Ultimate Warrior
 
Join Date: Jul 2013
Location: Philadelphia, PA
Posts: 5,000
Default

Since I and I am sure others are not on FaceBook. Could someone post that information here?

Stan

__________________
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software
http://www.magneticlynx.com/DV
Download FREE 14 Trial IOP / Flow Software
http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php
Pontiac Pump Gas List
http://www.magneticlynx.com/carfor/pont_gas.htm
Using PMD Block and Heads List
http://www.magneticlynx.com/carfor/pont_pmd.htm
  #4  
Old 05-23-2020, 04:54 PM
pastry_chef's Avatar
pastry_chef pastry_chef is offline
Suspended
 
Join Date: May 2003
Location: Ottawa
Posts: 2,300
Default

I wonder what fuel was used or maybe an instrument issue. Less than 210 lbs/hour of fuel at peak power.. BSFC in the .2xx

  #5  
Old 05-23-2020, 05:17 PM
Stan Weiss's Avatar
Stan Weiss Stan Weiss is offline
Ultimate Warrior
 
Join Date: Jul 2013
Location: Philadelphia, PA
Posts: 5,000
Default

Quote:
Originally Posted by pastry_chef View Post
I wonder what fuel was used or maybe an instrument issue. Less than 210 lbs/hour of fuel at peak power.. BSFC in the .2xx
Mike,
I am not on FaceBook and so can not see what was posted. Can you post up the dyno sheet here?

Thanks,
Stan

__________________
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software
http://www.magneticlynx.com/DV
Download FREE 14 Trial IOP / Flow Software
http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php
Pontiac Pump Gas List
http://www.magneticlynx.com/carfor/pont_gas.htm
Using PMD Block and Heads List
http://www.magneticlynx.com/carfor/pont_pmd.htm
  #6  
Old 05-23-2020, 05:32 PM
pastry_chef's Avatar
pastry_chef pastry_chef is offline
Suspended
 
Join Date: May 2003
Location: Ottawa
Posts: 2,300
Default

Quote:
Originally Posted by Stan Weiss View Post
Can you post up the dyno sheet here?

Thanks,
Stan
Here you go.
Attached Thumbnails
Click image for larger version

Name:	98211952_3431150960247368_625892226697789440_o.jpg
Views:	474
Size:	86.9 KB
ID:	540814  

  #7  
Old 05-24-2020, 04:38 PM
ponjohn's Avatar
ponjohn ponjohn is offline
Ultimate Warrior
 
Join Date: Mar 2002
Location: Connecticut
Posts: 9,530
Default

What is an acceptable range of BSFC?

  #8  
Old 05-24-2020, 04:40 PM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,638
Default

.4 to high .4 it does depend on type of gas though

  #9  
Old 05-24-2020, 05:22 PM
cfmcnc cfmcnc is offline
Chief Ponti-yacker
 
Join Date: Dec 2008
Location: New Jersey
Posts: 686
Default

The selector knob on the dyno for fuel turbines is in the wrong position.The numbers are half what they should be.Someone is not paying attention.Bill C.

__________________
Checkered Flag Machine & Ceralli Competition Engines
Racing engines and induction development

http://www.checkeredflagmachine.net/
  #10  
Old 05-24-2020, 06:44 PM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,638
Default

Quote:
Originally Posted by cfmcnc View Post
The selector knob on the dyno for fuel turbines is in the wrong position.The numbers are half what they should be.Someone is not paying attention.Bill C.
I said that on FB a day or 2 ago. The last sheet he posted looks much better.

  #11  
Old 05-24-2020, 07:09 PM
PAUL K's Avatar
PAUL K PAUL K is offline
Ultimate Warrior
 
Join Date: Feb 2004
Location: Sugar Grove IL USA
Posts: 6,280
Default

Quote:
Originally Posted by cfmcnc View Post
The selector knob on the dyno for fuel turbines is in the wrong position.The numbers are half what they should be.Someone is not paying attention.Bill C.
Quote:
Originally Posted by slowbird View Post
I said that on FB a day or 2 ago. The last sheet he posted looks much better.

WOW!!!

__________________
Go fast, see Elvis!
www.facebook.com/PaulKnippensMuscleMotors
  #12  
Old 05-24-2020, 08:09 PM
cfmcnc cfmcnc is offline
Chief Ponti-yacker
 
Join Date: Dec 2008
Location: New Jersey
Posts: 686
Default

Quote:
Originally Posted by slowbird View Post
I said that on FB a day or 2 ago. The last sheet he posted looks much better.
I also mentioned it on the FB post ,It looks like they removed it.So much for trying to help someone ,Bill C.

__________________
Checkered Flag Machine & Ceralli Competition Engines
Racing engines and induction development

http://www.checkeredflagmachine.net/
The Following User Says Thank You to cfmcnc For This Useful Post:
  #13  
Old 05-24-2020, 11:11 PM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,638
Default

Quote:
Originally Posted by cfmcnc View Post
I also mentioned it on the FB post ,It looks like they removed it.So much for trying to help someone ,Bill C.
It's there just need to look at Don's fb page
https://m.facebook.com/story.php?sto...composer=false

  #14  
Old 05-25-2020, 12:22 AM
Stan Weiss's Avatar
Stan Weiss Stan Weiss is offline
Ultimate Warrior
 
Join Date: Jul 2013
Location: Philadelphia, PA
Posts: 5,000
Default

Generally the A and B channels are pretty close to each other. For this case let double both.

215.1 * 2 = 430.2 lbs/hr

0.252 * 2 = 0.504 BSFC


Engine Size = 535.021 ci

Dyno Barometric Pressure = 29.0 - Dyno Vapor Pressure = 0.05 - Dyno Air Temperature = 75.0

STP - SAE J607 Correction Factor = 1.0483


_______STPPwr__STPTrq___BMEP_____Fuel___BSFC__UnCo rr__UnCorr_UnCorr_Correct___A/F______Air_
__RPM____CHP___Clb-ft____PSI___lbs/hr__lb/hph___HP____Torque___BMEP__Factor__Ratio____SCFM__ __VE%
_7400___904.6___642.0__181.0___430.20__.5040___853 .6___605.8__170.8__1.0597__12.75__1197.6__111.2



Stan

__________________
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software
http://www.magneticlynx.com/DV
Download FREE 14 Trial IOP / Flow Software
http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php
Pontiac Pump Gas List
http://www.magneticlynx.com/carfor/pont_gas.htm
Using PMD Block and Heads List
http://www.magneticlynx.com/carfor/pont_pmd.htm
  #15  
Old 05-25-2020, 09:27 AM
ponjohn's Avatar
ponjohn ponjohn is offline
Ultimate Warrior
 
Join Date: Mar 2002
Location: Connecticut
Posts: 9,530
Default

Quote:
Originally Posted by Stan Weiss View Post
Generally the A and B channels are pretty close to each other. For this case let double both.

215.1 * 2 = 430.2 lbs/hr

0.252 * 2 = 0.504 BSFC


Engine Size = 535.021 ci

Dyno Barometric Pressure = 29.0 - Dyno Vapor Pressure = 0.05 - Dyno Air Temperature = 75.0

STP - SAE J607 Correction Factor = 1.0483


_______STPPwr__STPTrq___BMEP_____Fuel___BSFC__UnCo rr__UnCorr_UnCorr_Correct___A/F______Air_
__RPM____CHP___Clb-ft____PSI___lbs/hr__lb/hph___HP____Torque___BMEP__Factor__Ratio____SCFM__ __VE%
_7400___904.6___642.0__181.0___430.20__.5040___853 .6___605.8__170.8__1.0597__12.75__1197.6__111.2



Stan

Is the BSFC essentailly an indicator of efficiency?
If a BSFC is out of whack should one go back to the drawing board?

  #16  
Old 05-25-2020, 10:21 AM
cfmcnc cfmcnc is offline
Chief Ponti-yacker
 
Join Date: Dec 2008
Location: New Jersey
Posts: 686
Default

BSFC.Is a measurement of Pounds of fuel per Horsepower Hour.It shows how efficiently an engine is performing.For example well refined race engines will be mid to high 30s to low 40s.A Q-Jet on a dual plane will be high 40s to low .50s..Bill C.

__________________
Checkered Flag Machine & Ceralli Competition Engines
Racing engines and induction development

http://www.checkeredflagmachine.net/
The Following User Says Thank You to cfmcnc For This Useful Post:
  #17  
Old 05-25-2020, 12:05 PM
John Langer's Avatar
John Langer John Langer is offline
Ultimate Warrior
 
Join Date: Jul 2000
Location: phila pa usa
Posts: 3,324
Default

What's up with the 30hp jump after it peaked and started to fall off 🤷*♂️

  #18  
Old 05-25-2020, 12:30 PM
cfmcnc cfmcnc is offline
Chief Ponti-yacker
 
Join Date: Dec 2008
Location: New Jersey
Posts: 686
Default

Quote:
Originally Posted by John Langer View Post
What's up with the 30hp jump after it peaked and started to fall off ��*♂️
John ,Are you talking about the last line on the posted dyno sheet where it dumped 30HP?

__________________
Checkered Flag Machine & Ceralli Competition Engines
Racing engines and induction development

http://www.checkeredflagmachine.net/
  #19  
Old 05-25-2020, 12:53 PM
John Langer's Avatar
John Langer John Langer is offline
Ultimate Warrior
 
Join Date: Jul 2000
Location: phila pa usa
Posts: 3,324
Default

Quote:
Originally Posted by cfmcnc View Post
John ,Are you talking about the last line on the posted dyno sheet where it dumped 30HP?
No where it peaked at like 885 then dropped off to 870 then jumped up in hp and tq to get to 900. I've only seen that one other time.

  #20  
Old 05-25-2020, 12:55 PM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,638
Default

I think John is referring to this sheet
Attached Thumbnails
Click image for larger version

Name:	98486203_3435833913112406_6135027213700956160_o.jpg.jpg
Views:	225
Size:	100.8 KB
ID:	540979  

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 12:47 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017