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Help with dyno results

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Old Sep 28, 2009 | 01:31 PM
  #1  
NuclearMuscle523's Avatar
NuclearMuscle523
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Default Help with dyno results

Went to the dyno. Came back with ~270hp ~270tq
Airfuel pretty much 12 straight across. I have the Hipo kit with 2.8" pulley
Wet-x kit also.
Shouldn't I be getting closer to ~350 for both?
Car is making about 7lbs of boost when it should be around 11. Even put a brand new belt on 10mm smaller to eliminate chance of slip and it is still making 7lbs.
And this was on a dynojet this time.
Old Sep 28, 2009 | 10:29 PM
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A DynoJet will read lower than a Mustang Dyno. Not sure why your boost is low, but I've never seen an X-Charger produce 350 rwhp on either dyno.
Old Sep 30, 2009 | 04:12 PM
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Originally Posted by 28HopUp
A DynoJet will read lower than a Mustang Dyno. Not sure why your boost is low, but I've never seen an X-Charger produce 350 rwhp on either dyno.
Someone correct me if I'm wrong, but don't you have the 2 dynos backwards? I believe the Mustang dyno reads lower than the Dynojets do.
Old Sep 30, 2009 | 11:05 PM
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Originally Posted by TRUEBLUE3934
Someone correct me if I'm wrong, but don't you have the 2 dynos backwards? I believe the Mustang dyno reads lower than the Dynojets do.
You're right. It's the mustang Dynos that read lower than the dynojet dynos.
Old Oct 1, 2009 | 10:09 PM
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Your boost is low for the 2.8" pulley. I suspect there's still some belt slip going on. You should be around 8-9lbs with the 2.8"
Old Oct 1, 2009 | 10:17 PM
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Even put a brand new belt on 10mm smaller to eliminate chance of slip and it is still making 7lbs.
and it should make 11, Ive seen it make 11
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