Why is my dyno graph spikey from 6k-8k?
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Joined: Jun 2004
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From: Appleton, WI
Why is my dyno graph spikey from 6k-8k?
As the title states, looking to find out why my dyno graph from last week is really spikey from 6000 rpm to 8000rpm. Detonation? I do have the intake cam advanced 3.5 degrees and exhaust cam retarded 1 degree, but dang!
I pulled a few degrees timing up top on runs 2 and 3 per the dyno operater, but still spikey. He also mentioned I should pull more timing?
Background:
Self-tuned P06 ECU OBD1 Hondata S300 on 94 B18c1 in 91 CRX Si. I/H/E/IM, crower stg1 cams.
I can't check hondata smanager logs for detonation as the p06 ecu doensn't have knock sensor circuitry, which is a bummer.
Please keep unrelated comments to yourself, I appreciate your input.
Oh and I know someone will ask whats with the dip on run 1 at 3000-3600 rpm. Vtec was at 3500 for dyno pull 1, and changed to 3000 for pulls 2 and 3 per dyno operator.
Mike
I pulled a few degrees timing up top on runs 2 and 3 per the dyno operater, but still spikey. He also mentioned I should pull more timing?
Background:
Self-tuned P06 ECU OBD1 Hondata S300 on 94 B18c1 in 91 CRX Si. I/H/E/IM, crower stg1 cams.
I can't check hondata smanager logs for detonation as the p06 ecu doensn't have knock sensor circuitry, which is a bummer.
Please keep unrelated comments to yourself, I appreciate your input.
Oh and I know someone will ask whats with the dip on run 1 at 3000-3600 rpm. Vtec was at 3500 for dyno pull 1, and changed to 3000 for pulls 2 and 3 per dyno operator.
Mike
Honda-Tech Member
Joined: Jul 2008
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From: CRX nation, U.S
Re: Why is my dyno graph spikey from 6k-8k?
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Davanca
Acura RSX DC5 & Honda Civic EP3
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Jan 4, 2004 03:19 PM
