Torque Numbers Drop Right After 5000RPMs, What's The Cause?
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Joined: Jul 2004
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From: Sitting In My EHTwo, CA
Torque Numbers Drop Right After 5000RPMs, What's The Cause?
Okay, I've made a previous thread about my weird turbo swap ( https://honda-tech.com/zerothread?id=1637535 ), and am now focusing on the dyno graph that I got from my dyno session at DSR in San Jose, CA. I've seen my brother's previous dyno chart (which was the same turbo that is currently on my car now) and the torque on his chart never really "drops". It'll stop picking up and stay quite leveled, fluctuating here and there very little. Mine however, literally takes a downward slope right at 5k RPMs... What's causing this? And is it fixable?
My Dyno Chart.
Notice How my torque drops at 5k RPMs.
Here's a dyno chart from Marauder, which was posted on my previous thread.
Notice How his torque flattens out after 5k RPMs.
Modified by fms1day at 12:01 PM 5/26/2006
My Dyno Chart.
Notice How my torque drops at 5k RPMs.
Here's a dyno chart from Marauder, which was posted on my previous thread.
Notice How his torque flattens out after 5k RPMs.
Modified by fms1day at 12:01 PM 5/26/2006
Thread Starter
Joined: Jul 2004
Posts: 1,055
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From: Sitting In My EHTwo, CA
Re: Torque Numbers Drop Right After 5000RPMs, What's The Cause? (Type-S RaCeR)
Well, electrically, my VTEC is crossing over... But I've heard it could be something inside the motor, but then again, if it was a bent valve or something, I believe not having VTEC kick in to be the least of my worries, right?
Thread Starter
Joined: Jul 2004
Posts: 1,055
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From: Sitting In My EHTwo, CA
Re: Torque Numbers Drop Right After 5000RPMs, What's The Cause? (aallbbeerrtttttt)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aallbbeerrtttttt »</TD></TR><TR><TD CLASS="quote">
didn't your d16z6 have 190psi all across with compression? i doubt it's internal problems...</TD></TR></TABLE>
Yeah motor was showing 200psi all across before it was put into the car.
I doubt it too, but what can be at fault here?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmrprojects »</TD></TR><TR><TD CLASS="quote">it should be fine. i dont think all tq curves are perfectly straight</TD></TR></TABLE>
I know it's not perfectly straight but I'm quite positive that a car's torque doesn't drop from 140 to 90. Which to me doesn't seem right in any sense
didn't your d16z6 have 190psi all across with compression? i doubt it's internal problems...</TD></TR></TABLE>
Yeah motor was showing 200psi all across before it was put into the car.
I doubt it too, but what can be at fault here?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmrprojects »</TD></TR><TR><TD CLASS="quote">it should be fine. i dont think all tq curves are perfectly straight</TD></TR></TABLE>
I know it's not perfectly straight but I'm quite positive that a car's torque doesn't drop from 140 to 90. Which to me doesn't seem right in any sense
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