450 SBC Preliminary Dyno Results - Page 2 - Chevelle Tech
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  #16  
Old Apr 27th, 12, 3:48 PM
JOHN WILSON JOHN WILSON is offline
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Default Re: 450 SBC Preliminary Dyno Results

Jason, thanks for letting me invite myself to come watch.


Quote:
Originally Posted by Chad Speier View Post

What did Wilson think of the manifold??

We can always tweak on it more
Chad, the intake looked nice! Based on what I've heard today the sheet intake is no slouch....as expected.
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Old Apr 27th, 12, 5:10 PM
crazydavey crazydavey is offline
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Default Re: 450 SBC Preliminary Dyno Results

congrats Jason...awesome numbers!!!
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  #18  
Old Apr 27th, 12, 7:30 PM
DragRacer DragRacer is offline
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Default Re: 450 SBC Preliminary Dyno Results

Thanks guys!

Total of 24 pulls in 2 days.

Chased my tail most of the day trying to tune the homemade 1250 HP(single) on the sheetmetal intake with a tee pee top.

Guess there is something to this tuned intake runner length stuff

The sheetmetal intake is within .25" of the 4th harmonic for this combination.

Best pull was 915 HP @ 7400 RPM and 713.8 lb-ft @ 6000 RPM

That was with Royal Purple XPR 5W20 oil and Q16.

With the break in Joe Gibbs oil it was 911 HP / 702 lb-ft

Didn't get any video, but "pissed off small block" describes it pretty darn well.

Didn't get test the 2x1000 HP combination for several reason. We'll have to save that for another day.

All in all I'm very pleased with the results.
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Naturally Aspriated 450 SBC - 915 HP / 714 lb-ft
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Last edited by DragRacer; Apr 27th, 12 at 8:31 PM.
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  #19  
Old Apr 27th, 12, 7:52 PM
DragRacer DragRacer is offline
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Default Re: 450 SBC Preliminary Dyno Results

Quote:
Originally Posted by Tokyo Torquer View Post
Jason,

what did you end up with for intake and exhaust port volumes in the heads? did you consider going with a bigger lifter?

mike
Mike,

I did consider it, but I already had a good set of Isky lifters I was planning to re-use. Ended up having to go to a different lifter due to an interference issue. The next iteration will have bushed lifter bores and a .904 lifter. Possibly a 55mm cam tunnel.

I could tell you the intake runner volume........but I'd have to kill ya (just kidding). Keep in mind that the intake runners in this casting are longer to allow standard 18 deg. intakes to bolt up. That further skews the numbers. You can't compare it to a 23 degree head. The cross section is conservative. It was designed to peak at 7200 RPM, and it basically did. All that being said, I measured 314 cc.


Quote:
Originally Posted by Orr89rocz View Post
Looks like a very stout setup, and a long project to get everything in order! Any reason for the 450 cube 4.125" stroker setup vs say a 3.75-3.875 stroke and rev higher to make power? Just curious.
I've got a 9.325" tall deck block.....might as well take advantage of the extra room
.......and it is going in a heavy car/Chevelle
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Last edited by DragRacer; Apr 27th, 12 at 8:30 PM.
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  #20  
Old Apr 27th, 12, 9:06 PM
lun40119 lun40119 is offline
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Default Re: 450 SBC Preliminary Dyno Results

Very nice Jason!!!

Jakey likes'em rowdy!!!
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  #21  
Old Apr 27th, 12, 9:12 PM
DragRacer DragRacer is offline
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Default Re: 450 SBC Preliminary Dyno Results

Quote:
Originally Posted by lun40119 View Post
Very nice Jason!!!

Jakey likes'em rowdy!!!
Thanks Jake!

Team Clueless......Pissed Off Small Block subsection!

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  #22  
Old Apr 27th, 12, 9:15 PM
BowtieAaron BowtieAaron is offline
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Default Re: 450 SBC Preliminary Dyno Results

that is badass.

whats the longevity of a motor of this caliber? is it streetable at all? how often will you be needing to freshen it up? rings/bearings/valves/springs wise?

aaron
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  #23  
Old Apr 27th, 12, 9:29 PM
lun40119 lun40119 is offline
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Default Re: 450 SBC Preliminary Dyno Results

Quote:
Originally Posted by DragRacer View Post
Thanks Jake!

Team Clueless......Pissed Off Small Block subsection!

That would be one Bad A$$ Section..........It would have to be uncensored too..........You know how the Rowdy's Roll!!!

I really like the headers Jason.......they remind me of another set I have seen. I just wish they fit in my car.......
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  #24  
Old Apr 27th, 12, 9:32 PM
40Coupe 40Coupe is offline
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Default Re: 450 SBC Preliminary Dyno Results

Looks to me like there's a new SBC sheriff in town in TX!

870 don't cut the mustard anymore John. Looks like Jason ain't playin'. LOL
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  #25  
Old Apr 27th, 12, 9:50 PM
Wolfplace Wolfplace is offline
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Default Re: 450 SBC Preliminary Dyno Results

Very nice Jason,, congratulations
Been a long haul with a headache or two along the way so it is really great to see all your hard work giving you a little something back.
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  #26  
Old Apr 27th, 12, 10:30 PM
540Hotrod 540Hotrod is offline
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Default Re: 450 SBC Preliminary Dyno Results

Wow...that is one bad boy!!

Drag Week???


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  #27  
Old Apr 27th, 12, 10:38 PM
Bob West Bob West is offline
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Default Re: 450 SBC Preliminary Dyno Results

Very nice!!! I guess we can use my car as the tow vehicle
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  #28  
Old Apr 27th, 12, 11:04 PM
JOHN WILSON JOHN WILSON is offline
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Default Re: 450 SBC Preliminary Dyno Results

Excellent results & effort, Jason!!

Your oil change results are real similar to what I saw. IIRC, mine picked up about 7hp at pk, but the middle of the pull was a solid 10-12hp better. Too bad you didn't get to test the 2x4 setup. I'm sure there's still more hp with that arrangement.

Garret, those sbc guys needed a new sheriff anyways. The old sheriff disappeared over a year ago and smallblock land is running amuck with these pesky junkyard LS engines.
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  #29  
Old Apr 28th, 12, 2:31 AM
blue66 blue66 is offline
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Default Re: 450 SBC Preliminary Dyno Results

Very Very nice Jason!! Heck of a build!
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  #30  
Old Apr 28th, 12, 8:46 AM
lun40119 lun40119 is offline
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Default Re: 450 SBC Preliminary Dyno Results

Quote:
Originally Posted by JOHN WILSON View Post
Excellent results & effort, Jason!!

Your oil change results are real similar to what I saw. IIRC, mine picked up about 7hp at pk, but the middle of the pull was a solid 10-12hp better. Too bad you didn't get to test the 2x4 setup. I'm sure there's still more hp with that arrangement.

Garret, those sbc guys needed a new sheriff anyways. The old sheriff disappeared over a year ago and smallblock land is running amuck with these pesky junkyard LS engines.
What's an LS engine???
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