Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

mods increase mph at rpm's?

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Old Oct 8, 2005 | 12:33 PM
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92'si's Avatar
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Default mods increase mph at rpm's?

<zips up flame suit>

Ok, i know my mods are minimall at best but...

my speedo has been broken for some time and will work on occasion. but lately (after mods have been done) it will work and it will say im going faster then i beleive

For example before when at 2000 rpm in fourth gear i was going 40, but now at same rpm it will say 47.

Is my speedo or v.s.s. just completely shot now or... did the mph acctually increase?
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Old Oct 8, 2005 | 12:35 PM
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ABK
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Default Re: mods increase mph at rpm's? (92'si)

did you change your ecu, wtf are your mods?
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Old Oct 8, 2005 | 12:35 PM
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Default Re: mods increase mph at rpm's? (92'si)

sounds like a ? a ricer would ask..but a good one

bump for answer
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Old Oct 8, 2005 | 12:35 PM
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Default Re: mods increase mph at rpm's? (ABK)

mods in sig, ecu is stock. only asking cause my speedo not working and i go by rpms to see how fast im going, dont exactly want a ticket.


Modified by 92'si at 3:47 PM 10/8/2005
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Old Oct 8, 2005 | 12:52 PM
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Default Re: mods increase mph at rpm's? (92'si)

the speed at any RPM is dependent on tranny ratios.change the tranny ratio and you will get a different speed at the same RPM.HP has no bearing on this.
tire diameter also affects this,but that doesn't reflect in your speedometer.
Chris
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Old Oct 8, 2005 | 01:13 PM
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Default

Ditto to what chris said, no matter if you are making 100 hp or 1000, the mph at any given RPM will be the same as the internal ratios have not changed.
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Old Oct 8, 2005 | 01:15 PM
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Default Re: mods increase mph at rpm's? (92'si)

The only mod I know of that will change your speedo is rims.
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Old Oct 8, 2005 | 02:35 PM
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Default Re: mods increase mph at rpm's? (96 SOHC VTEC)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96 SOHC VTEC &raquo;</TD></TR><TR><TD CLASS="quote">The only mod I know of that will change your speedo is rims. </TD></TR></TABLE>
BUT,your speedo will still indicate the same speed at the same RPM,regardless of tire diameter.
your actual speed will change.
Chris
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