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 5Likes
03-21-2015, 04:53 AM
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CC Member
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Join Date: Feb 2002
Location: Dadeville,
AL
Cobra Make, Engine: Sold my EM.
Posts: 2,459
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Not Ranked
I was fascinated by the performance of those Engine Masters competitors when they first started getting wide publicity. But then I started noticing all the high rise intakes, electric water pumps, vacuum pumps, and high flowing exhaust systems. Then I realized that building an engine for a dyno competition is not the same as building one for the track or the street. Yes, some of the parts and technology have street application, but otherwise its a lot like comparing a Pikes Peak car to a street car.
__________________
Tommy
Cheetah tribute completed 2021 (TommysCars.Weebly.com)
Previously owned EM Cobra
"Never attribute to malice that which is adequately explained by stupidity." - Hanlon's Razor
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03-21-2015, 08:00 AM
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CC Member
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Join Date: Jan 2008
Location: Nashville,
TN
Cobra Make, Engine: Backdraft, SBF 351w (463 CI)
Posts: 272
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Not Ranked
Quote:
Originally Posted by Tommy
I was fascinated by the performance of those Engine Masters competitors when they first started getting wide publicity. But then I started noticing all the high rise intakes, electric water pumps, vacuum pumps, and high flowing exhaust systems. Then I realized that building an engine for a dyno competition is not the same as building one for the track or the street. Yes, some of the parts and technology have street application, but otherwise its a lot like comparing a Pikes Peak car to a street car.
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Tommy with all do respect your wrong. The engine is not designed for masters competition. Far from it. The cam is used in Jims dirt track engines. The pistons are off the self. The rockers are 1.7
A vacuum pump will do just fine in this application as long as it has a good oil supply. ( its not a daily driver)
I have personally used both elect water pumps and super victors on street cars. My last cobra engine had a super victor.
How about cobra with a elect pump and a super victor. 
Mark
Last edited by PLDRIVE; 03-21-2015 at 08:03 AM..
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03-21-2015, 08:12 AM
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CC Member
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Join Date: Jan 2008
Location: Nashville,
TN
Cobra Make, Engine: Backdraft, SBF 351w (463 CI)
Posts: 272
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Not Ranked
Ok guys,,,, these heads are 15 degree victors with a 2.15 1.6 values and 295cc runners. they move a lot of air!!!!!. Going to have to guess higher.
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03-21-2015, 09:47 AM
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CC Member
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Join Date: Dec 2004
Location: Kansas City,
KS
Cobra Make, Engine: jbl
Posts: 2,291
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Not Ranked
Quote:
Originally Posted by PLDRIVE
Ok guys,,,, these heads are 15 degree victors with a 2.15 1.6 values and 295cc runners. they move a lot of air!!!!!. Going to have to guess higher.
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My guess was when you finally said oh **** and pulled your foot out of it.  |
03-21-2015, 10:34 AM
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CC Member
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Join Date: Jan 2008
Location: Nashville,
TN
Cobra Make, Engine: Backdraft, SBF 351w (463 CI)
Posts: 272
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Not Ranked
Here u go.
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03-24-2015, 06:34 AM
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CC Member
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Join Date: Jul 2003
Location: West Bloomfield,
MI
Cobra Make, Engine:
Posts: 717
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Not Ranked
Potent package there.
You have better "shelves" than I do.
At 1.52 TQ per cid on 11.5:1 compression that package is far from the normal expected range of "off the shelf" components. Although the RPM band on this build is considerably higher, the overall numbers would have been very, very competitive in any of the Engine Masters competitions - and I suspect that none of those would have been considered "off the shelf".
__________________
Survival Motorsports
"I can do that....."
Engine Masters Challenge Entries
91 octane - single 4bbl - mufflers
2008 - 429 cid FE HR - 675HP
2007 - 429 cid FE MR - 659HP
2006 - 434 cid FE MR - 678HP
2005 - 505 cid FE MR - 752HP
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03-31-2015, 09:18 PM
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CC Member
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Join Date: Jan 2008
Location: Nashville,
TN
Cobra Make, Engine: Backdraft, SBF 351w (463 CI)
Posts: 272
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Not Ranked
Here another engine Kuntz built recently. This 376 SBF engine was built for a weeks worth of abuse (drag week)  Nothing exotic , 11.1 compression, pump gas, Jims 15 degree heads. It will run sealed all week (no vacuum Pump).
Mark
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04-01-2015, 04:17 AM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
Impressive. Both engines have exceptional BSFC figures.
Can I ask what carburettors?
__________________
Gary
Gold Certified Holden Technician
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03-21-2015, 09:28 AM
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CC Member
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Join Date: Dec 2011
Location: Voorhees,
NJ
Cobra Make, Engine: BDR #1230/B2 445CI SBF
Posts: 295
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Not Ranked
Quote:
Originally Posted by PLDRIVE
Tommy with all do respect your wrong. The engine is not designed for masters competition. Far from it. The cam is used in Jims dirt track engines. The pistons are off the self. The rockers are 1.7
A vacuum pump will do just fine in this application as long as it has a good oil supply. ( its not a daily driver)
I have personally used both elect water pumps and super victors on street cars. My last cobra engine had a super victor.
How about cobra with a elect pump and a super victor.
Mark |
I recognize that engine... 
__________________
Gary Bowman
Voorhees NJ/Key Largo Fla/Ventnor NJ
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