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10-16-2007, 02:51 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Anyone care to guess at the horsepower this one will put out?
My newest build is a 445ci Windsor stroker based on a Dart Sportsman block with a 4.155" bore and a 4.100" stroke. Scat forged crank, scat H-beam rods, and Probe pistons. Keith Craft is doing the block work for me.
The heads are TFS CNC Twisted Wedge R heads, which have been drop shipped to Joe Craine for massaging and flow testing. Out of the box, these heads are supposed to flow 330cfm @ .600", so I'm very confident they will work well on this application. They are 225cc heads with 2.08" intake valves and 1.60" exhaust valves.
The cam is a Comp custom hydraulic roller, with a 294/298 advertised duration, 166/169 duration at .200", and 244/248 duration at .050". Lift is .615"/.621".
The intake is an Edelbrock Super Victor intake.
Compression will be 10.7:1, with an 8.15:1 DCR.
The cam may be a little lacking for this size engine, but it's going in a heavier car than a Cobra and I want it to have plenty of low/mid range grunt.
I'm shooting for 600hp/600lb-ft....
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10-16-2007, 03:09 PM
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CC Member
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Join Date: Oct 2003
Location: Saratoga Springs,
UT
Cobra Make, Engine: Shell Valley, 418W, tremec 3550tko, 9" ford rear, 3.0 gear, silver/black
Posts: 408
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Not Ranked
I will guess:
580 HP
570 TQ
__________________
Terry
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10-16-2007, 03:30 PM
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Senior Club Cobra Member
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Join Date: Feb 2006
Location: Syracuse,
NY
Cobra Make, Engine: BDR 228, Roush 342R, 457HP/428TQ, modified AOD
Posts: 1,378
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Not Ranked
550Hp and 535 TQ
I'm staying to the low side on my guess. In any case, it sound like you will have one great engine.
__________________
Dave
Nolite id cogere, cape malleum majorem - Don't force it, get a bigger hammer.
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10-17-2007, 02:08 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
No more than two opinions? Ah, c'mon guys.....
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10-17-2007, 02:20 PM
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CC Member
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Join Date: Feb 2007
Location: Raytown,
mo
Cobra Make, Engine: FFR Coupe SOLD.Current 66 Mustang
Posts: 962
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Not Ranked
well James yales 427 small bock was 610hp soyou could go 640 easy if the engine flows like his did...WB3
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10-17-2007, 02:21 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Hey WB,
Any links to his build?
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10-17-2007, 03:43 PM
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CC Member
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Join Date: Aug 1999
Cobra Make, Engine:
Posts: 2,888
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Not Ranked
My old 408 was at 615 but with a much bigger cam than you have chosen. I would guess your at the 550+ range.
Don't need no big block.
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SAAC member and supporter
Club Cranky charter member
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10-17-2007, 03:45 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
What cam and heads were you running?
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10-17-2007, 04:01 PM
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CC Member
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Join Date: Aug 1999
Cobra Make, Engine:
Posts: 2,888
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Not Ranked
The cam was a special grind
Bullet 670 lift and 266-274 I-X @.050 solid roller
Made all it's power up high 6,600 but would not run on pump gas.
The heads were out of the box AFR 205's
I have since detuned and now am around 500HP
__________________
SAAC member and supporter
Club Cranky charter member
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10-17-2007, 04:17 PM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Not Ranked
It's a small block, couldn't possibly break 300 horse max.
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10-17-2007, 04:34 PM
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CC Member
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Join Date: Feb 2007
Location: Raytown,
mo
Cobra Make, Engine: FFR Coupe SOLD.Current 66 Mustang
Posts: 962
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Not Ranked
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10-17-2007, 04:51 PM
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CC Member
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Join Date: Feb 2007
Location: Raytown,
mo
Cobra Make, Engine: FFR Coupe SOLD.Current 66 Mustang
Posts: 962
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Not Ranked
Blykins I dont know if James Yale had a build site for his Daytona or not but that engine your doing is going to be very stout ,I know james found a 100 hp just using the BB 4into 1 headrs instead of the quad pipes the Daytonas have it was all tested ther on Crafts Dynos.sounds like fun WB3
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10-17-2007, 05:29 PM
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Banned
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Join Date: Oct 2003
Location: Yorba Linda,
CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Not Ranked
Quote:
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Originally Posted by Terry Stapley
I will guess:
580 HP
570 TQ
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I"m going to play my "The Price is Right" card and guess 581 HP/571 TQ.
Actually, given the displacement and components you mentioned I honestly think you have a really good chance of eclipsing the 600HP barrier.
-Dean |
10-17-2007, 05:33 PM
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Senior Club Cobra Member
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Join Date: Mar 2002
Location: God's country,
ME
Cobra Make, Engine: Original ERA 427sc, Powered by Gessford
Posts: 2,678
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Not Ranked
Quote:
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Originally Posted by RedBarchetta
I"m going to play my "The Price is Right" card and guess 581 HP/571 TQ.
Actually, given the displacement and components you mentioned I honestly think you have a really good chance of eclipsing the 600HP barrier.
-Dean |
If we're playing the Price is Right, then I guess $1! 
__________________
Replica is not a dirty word.
"If you can't be a good example, then you'll just have to be a horrible warning."
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10-17-2007, 06:16 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
The only thing I'm unsure about is the camshaft. I want to have a great deal of good manners on the street, but I don't want an RV either.
It's hard to find examples of setups like this one on the web...so I have nothing to compare against.
Probably the closest comparison I have is this one :
World 460 All-Aluminum Windsor
Now granted, it's 15ci larger than mine, but I think I may have the edge with my cylinder heads. This 460W also has a pretty stout cam....254/260 @ .050. That's kinda what makes me think I'm not choosing a large enough camshaft.
Thoughts? |
10-21-2007, 12:30 AM
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CC Member
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Join Date: Sep 2007
Location: Sydney,
02
Cobra Make, Engine: DRB 1996 302 windsor
Posts: 63
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Not Ranked
i think about 595hp and tq 585  |
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