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180kmh speed limiter... what are my options?

Engine/Gearbox questions and discussion
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Vtecmec
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Post by Vtecmec » Sun Jul 08, 2018 5:37 pm


newkid
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Post by newkid » Sun Jul 08, 2018 5:46 pm

Vtec definitely has a minimum speed. Vss goes no vtec as it can't tell if that speed is being reached.

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Post by vanzep » Sun Jul 08, 2018 5:47 pm

yep all JDM Preludes that were imported from Japan and were under 10 years old would have had a mph sticker put on the dials and a speedo convertor chip fitted.
ive removed the convertor chip in my BB4 and fitted UKDM (Mph) Dials and a spoon v2 chip from Rob and now have vtec in 1st gear.
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Post by vanzep » Sun Jul 08, 2018 5:51 pm

its a pity that nucleustylzlude isnt about at the moment :)
he did a really good job with the chips and everyone seemed very pleased with the results 8-)
1996-2000 1993 EG9 Blue Civic 1.6 Vti - Traded in against the BB4
2000-2019 1994 2WS BB4 Milano Red JDM Prelude Si VTEC LSD

2015 on > 1991 4WS BB1 Phantom Pearl Grey JDM Prelude Si VTEC LSD
2021 ON > 1998 2WS BB6 White Pearl JDM Prelude Si VTEC

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Post by crxdriver » Sun Jul 08, 2018 8:14 pm

Surely someone has a chip that can be copied to help us guys in need? Then a server fund donation? Ive had this chip-able ECU sat here for an age and just want it installed lol.

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Post by hondaddict » Sun Jul 08, 2018 8:37 pm

newkid wrote:Vtec definitely has a minimum speed. Vss goes no vtec as it can't tell if that speed is being reached.
Sorry, my English is so bad that it is hard to explain for me, but i'll try :

for me, it is not a "minimal speed limitation" but only a way to be sure that the car is moving . This is why if the vss is gone, there's no vtec engagement.
Well, for me the most important thing to keep in mind is that if there's a minimal speed to reach in way of allow the vtec engagement, this value is so low that even if a speed converter is connected between the vss and the ECU, in way of going other the 180 km/h limitation, there will be not a real big difference.

Hope this time what i have in mind is most clearer for you all, if not, i'll try once again. And please don't forget that i'm french and that my English is not very good :oops: And if i'm wrong, don't hesitate to correct me, it is also a manner for me to learn English and to be more understandable for you all :D
Accord Type R , "what else" :lol:

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Post by Vtecmec » Sun Jul 08, 2018 8:50 pm

I understand what your saying, the difference is enough to prevent vtec in first gear.

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Post by newkid » Sun Jul 08, 2018 9:07 pm

https://www.hondata.com/help/flashpro/i ... meters.htm

I know it's flashpro but same idea.

The problem with jdm ecus is its looking for that minimum speed in kph. In the convertor chip is before the ecu the ecu never sees that minimum kph to allow vtec engagement in first. Second etc is fine as it reaches it.

I found the best way round it was spoon chip an switch dials to mph ones. Saves any convertor needing to be used.

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Post by Vtecmec » Sun Jul 08, 2018 9:53 pm

newkid wrote: I found the best way round it was spoon chip an switch dials to mph ones. Saves any convertor needing to be used.
Exactly what I did with mine.

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Post by JEBB4 » Mon Jul 09, 2018 1:21 am

Thanks for the input guys, useful info there, my bb4 had a spoon chip and mph dials and had vtec in 1st... those were simpler times :lol:
I’ll have a look at a converter and try get hold of nucleustylzlude
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