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Does VTC Prevent tuning on the Dyno.

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Old Dec 30, 2003 | 09:48 PM
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Default Does VTC Prevent tuning on the Dyno.

I was just wondering because im going to get my car dyno on friday. And i was wondering is it possible for it ot be tuned. I was reading that VTC ajust the cam timing at different rpms. So im thinking if it does this automatically then it would be impossible to tune. If this is the case, then im assuming that VTC must be disabled, if thats possible.

Is the main purpose of VTC is to have better fuel economy, or was honda trying to help us out on dyno tuning. Meaning that whatever parts we slap on the the K20 as long as there is no check engine light the VTC will tune the cams to work at it's best with those mods, thus eliminating tuning and saving us money.
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Old Dec 31, 2003 | 01:26 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (davanca24)

anyone have any insight.
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Old Dec 31, 2003 | 04:04 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (davanca24)

I would tihnk yes, to some extent VTC does limit timing tweaks in the traditional sense, but you can alter the signals that VTC receives from the sensors or reprogram the ECU altogether. This is a good question for the experts at Hondata.
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Old Dec 31, 2003 | 04:56 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (davanca24)

AEM and Hondata are working on programs that will allow you to tune the motor without eliminating the VTC. You and the VTC because it helps add torque.
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Old Dec 31, 2003 | 05:18 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (GreenR)

i dont know how much the VTC cam gear can adjust timing, i think its only 10 degrees either way tho
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Old Dec 31, 2003 | 06:32 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (JUN EK9)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JUN EK9 &raquo;</TD></TR><TR><TD CLASS="quote">i dont know how much the VTC cam gear can adjust timing, i think its only 10 degrees either way tho</TD></TR></TABLE>
it actually can adjust the timing 50 degrees, if it's an even split between advance & retard, that's 25 degrees either way. but it might not be an even split.
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Old Dec 31, 2003 | 07:01 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (chunky)

VTC will help overall perf. But the secret is tuning VTC. For hondata owners they see a difference because hondata themself tuned the VTC for better low RPMs.
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Old Dec 31, 2003 | 07:49 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (aznbo1626)

Hey if you want to dyno and make good power Check out the hondata site they have a programmable ECU for the K series.
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Old Jan 2, 2004 | 05:39 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (chunky)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chunky &raquo;</TD></TR><TR><TD CLASS="quote">
it actually can adjust the timing 50 degrees, if it's an even split between advance & retard, that's 25 degrees either way. but it might not be an even split.</TD></TR></TABLE>

i guess i was off by 30 degrees then

where did you get the info about 50 degrees?
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Old Jan 2, 2004 | 09:12 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (JUN EK9)

I dynoed my car today. All i have is a Injen SRI. i just wanted to see what i was putting down. It came out to 172 WHP 125 Lbs of torque.

So what i learned so far is that the Injen SRI just makes your vtec sound good. It doesn't deliver any power. SO if anyone is looking ot get an intake don't buy the injen sri.
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Old Jan 2, 2004 | 11:04 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (davanca24)

Thats a pretty good dyno. alot of RSXs are like at 160 stock
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Old Jan 3, 2004 | 07:59 AM
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Default Re: Does VTC Prevent tuning on the Dyno. (davanca24)

And i was wondering is it possible for it ot be tuned.

it is a pulse width modulated device.... pseudo simple, but you will need to base it on RPM's and load.

I.E. wait till a standalone is released with PW control.

the EMS has two PW channels
BTW
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Old Jan 4, 2004 | 03:19 PM
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Default Re: Does VTC Prevent tuning on the Dyno. (B18CXr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18CXr &raquo;</TD></TR><TR><TD CLASS="quote"> And i was wondering is it possible for it ot be tuned.

it is a pulse width modulated device.... pseudo simple, but you will need to base it on RPM's and load.

I.E. wait till a standalone is released with PW control.

the EMS has two PW channels

AEM EMS or Hondata? I been waiting on AEM for like 10 months.
BTW </TD></TR></TABLE>
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