Torque Numbers Drop Right After 5000RPMs, What's The Cause?
05-25-2006, 11:02 PM
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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
06-21-2006, 09:03 PM
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Re: Torque Numbers Drop Right After 5000RPMs, What's The Cause? (fms1day)
anyone up for a turbo leak or faulty waste gate? around 5000rpms if it seriously craps out i would think theres something up with the VTEC cross over.
06-21-2006, 09:08 PM
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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?
06-22-2006, 06:59 AM
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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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06-22-2006, 08:05 AM
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Re: Torque Numbers Drop Right After 5000RPMs, What's The Cause? (fms1day)
If you think this is a "problem" unique to your car, you need to do a lot more research.
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