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 22Likes
01-14-2016, 02:09 PM
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CC Member
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Join Date: Jul 2009
Location: Westerly,
RI
Cobra Make, Engine: Fordstroker 408w custom solid roller-Craft ported Brodix 17*heads-CFM ported Vic Jr. intake-1 3/4 primaries- 575hp-TKO-600RR Liberty upgrade- -Moser 8.8 trutrac-McLeod Street Extreme--QA-1-Wilwood brakes, Classic Chambered 3" Cobrapacks, Avon's
Posts: 645
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Not Ranked
Was that a Mustang Dyno or a DynoJet. There is a difference. Maybe 13% in favor of the Dynojet. Not that it matters either way but I'm trying to get apples to apples numbers in my head.
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Lou
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01-14-2016, 03:00 PM
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CC Member
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Join Date: Jan 2016
Cobra Make, Engine:
Posts: 71
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Side pipe I'm using.. Hollow no packing
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01-14-2016, 03:02 PM
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CC Member
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Join Date: Jan 2016
Cobra Make, Engine:
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Side pipe I am using, no packing or reductions.
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01-14-2016, 03:05 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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And a new intake already? Before selecting cam and rebuilding the motor? 
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All that's stopping you now Son, is blind-raging fear.......
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01-14-2016, 03:10 PM
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Join Date: Jan 2016
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Quote:
Originally Posted by Bernica
And a new intake already? Before selecting cam and rebuilding the motor? |
Nope Cam, Heads and intake were all setup at the same time. I'll be posting as We go through each, right now dealing with the piston issue...
New ones on the way. |
01-14-2016, 03:28 PM
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Join Date: Jan 2016
Cobra Make, Engine:
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New heads: Valves are 2.02, 1.60. Old ones are 1.94 and 1.51. Amazingly enough old valves weren't bent.
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01-15-2016, 12:02 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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As I am sure you know, to get 400 at rear wheel, you are going to need to hit 470-500 at the flywheel. 15-20% loss in the drivetrain.
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All that's stopping you now Son, is blind-raging fear.......
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01-15-2016, 12:04 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Quote:
Originally Posted by Bernica
As I am sure you know, to get 400 at rear wheel, you are going to need to hit 470-500 at the flywheel. 15-20% loss in the drivetrain.
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Or just lie about the results.  That's what many of the folks around here like to do.  |
01-15-2016, 12:22 PM
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Quote:
Originally Posted by patrickt
Or just lie about the results. That's what many of the folks around here like to do. |
Ha ha ha I'm not much of a liar... I'll post the dyno results. Either way what I end up with when this is done is better than the Kia horsepower it currently has! |
01-15-2016, 12:13 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
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Yes they do!
Seeing posts claiming 500-600 RWHP always cracks me up. It's very simple math...
Good luck with your build Cobrat24 and just keep us all in the loop on how things work out. 
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All that's stopping you now Son, is blind-raging fear.......
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01-19-2016, 10:49 PM
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CC Member
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Join Date: Jan 2016
Cobra Make, Engine:
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Block prep done, crank,rods,bearings, cam and pistons back in. Working on top end assembly meow!  |
01-20-2016, 02:06 AM
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Join Date: May 2008
Location: Brisbane,
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Cruel to be kind, being honest up front doesn't hurt anyone if they learn.
I hope your mechanic has checked valve to piston clearance as a mockup build as I quoted how I do it in post 109.
Your valves are larger now, inlets by 80 thou, 1mm larger in radius.
I also don't like the use of a whizzer wheel across the deck surface.
__________________
Gary
Gold Certified Holden Technician
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01-20-2016, 06:28 AM
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CC Member
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Join Date: Jan 2016
Cobra Make, Engine:
Posts: 71
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Quote:
Originally Posted by Gaz64
Cruel to be kind, being honest up front doesn't hurt anyone if they learn.
I hope your mechanic has checked valve to piston clearance as a mockup build as I quoted how I do it in post 109.
Your valves are larger now, inlets by 80 thou, 1mm larger in radius.
I also don't like the use of a whizzer wheel across the deck surface.
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Hey Gary ,
I appreciate the feedback. My mech has been doing this since I was in diapers. He is old school, the motors I see coming out of his shop are amazing. And Renos performance market is so small that if he had a bad rep for bad builds I'd hear about it. I trust him. Here is a link to his website, these our a few of the projects he puts together, a very well rounded mech.
Infinite Velocity Motorsports |
01-20-2016, 03:18 PM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
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I'm happier now, nothing wrong with old fellas. I'm one.
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Gary
Gold Certified Holden Technician
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01-20-2016, 07:37 PM
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Ok so need some valve cover suggestions.. The ones I had in mind are not tall enough. They don't clear the valve train.
You guys have suggestions? Looking for some unique ones that aren't as common as the "cobra" ones. The pic below are what I had in mind but don't fit.
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01-20-2016, 07:51 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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Go here. That's all they have been making for a long time.
Our Products
__________________
All that's stopping you now Son, is blind-raging fear.......
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01-25-2016, 07:52 PM
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Hey fellas,
Just updating you on the build.. It's getting closer, should be Dynoing this week. So now that it has compression, funny how the starter is struggling a bit to turn it over.. Lol
Here is the start of the Exhaust buildout before the new side pipe. Should be buttoned up soon, this thing is gonna sound nasty. I am excited to share the video clip once completed.
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01-25-2016, 07:57 PM
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Here is another pic..
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01-27-2016, 09:32 PM
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Valve covers came in and look good. It's coming together slowly.
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02-01-2016, 02:34 PM
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Ok so we fired up the little 302 recently after the build.. Waiting on some additional parts for exhaust, new plug wires etc.. But here's is the progress!
Dyno was suppose to be earlier last week, however weather played havoc on parts and trailering the cobra to the dyno. I'll keep posting more as I go.
https://youtu.be/xCI87RUxaQo |
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