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well, well, well.....SLEDGEHAMMER mustang dyno results

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Old 06-20-2005, 04:12 PM
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special tool
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Default well, well, well.....SLEDGEHAMMER mustang dyno results

Well - here are the results of the sledgehammer head at 24 psi. Please remember, this is a MUSTANG dyno - commonly accepted by proffesionals to read 10% LOWER, on average, than the dynojet - as it is a load dyno.
I dropped the thottle a little early - probably had another 10 horse, or so. I like to be easy on the equipment.

I will be going to the dynojet in a couple weeks - I am not really worried about seeing a 500+ RWHP dynojet number, now. Should be a stroll by the lake.
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Old 06-20-2005, 04:15 PM
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NZ951
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Mother of god! What was the exact HP on that run? And on a mustang! Just goes to show, smarter is better. What was the HP gain?
Old 06-20-2005, 04:17 PM
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shaheed
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your sig needs updating....
Old 06-20-2005, 04:30 PM
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Ian Carr
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total crap. the festiva makes more power

I woulda been there today but i have no wind shield because the stupid wind shield people are stupid.

note to self. Wind shields with antenna in them ARE 1 IN WIDER
Old 06-20-2005, 04:30 PM
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Crikey! When can we start placing orders?
Old 06-20-2005, 04:36 PM
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MPD47
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Very nice Jim. I'm just guessing, going by zooming in in photoshop but that appears to be about 475whp/454tq, on a Mustang Dyno no less!
Old 06-20-2005, 04:43 PM
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Yeah - the peak HP is printed out on the bottom right-hand side of the sheet.
472/438.

She gets along pretty good on the street.

75 F today - wish it had been a little cooler.
My previous run was about 45-50 F
Old 06-20-2005, 04:43 PM
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Chris Prack
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Very nice results! I have been away for a while, other than John's kit what have you done to your engine?
Old 06-20-2005, 04:43 PM
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Are the valves bigger? How much for the head? John or ST, email me!
Old 06-20-2005, 04:44 PM
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Oh and I promise no more email meant for my ex girlfriends ST.
Old 06-20-2005, 04:54 PM
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Jim you have a PM
Old 06-20-2005, 04:55 PM
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How's her valves?
Old 06-20-2005, 05:02 PM
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Mike S
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Pre Sledgehammer Test

The link is above to the first dyno run. Just looking at the pics I'm guessing 30HP and 20 lb-ft of torque? Not crazy about the comparison due to the ignition miss on the first one but it also looks like the area under the HP curve is much better.

The upper end seems to be kind of bumpy still which makes me think that the ignition is a tad weak? Are you running that new wasted spark add-on from vitesse?
Old 06-20-2005, 05:13 PM
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Awesome Jim
Old 06-20-2005, 05:25 PM
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OMG!!
Can you tell me if the head has moved the powerband?


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