VTEC in reverse?

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06-03-2009, 10:18 AM
infurNOS

VTEC in reverse?

I have been told many things about hitting VTEC in reverse, most of them say it is disabled once in reverse, but USDM versions seem to have no problem doing it:

http://www.youtube.com/watch?v=4cmlGs41OsY

whats the truth behind it all? unless the USDMs ECU's are different or VTEC does really engage in reverse
06-03-2009, 10:46 AM
CB7_OWNER

Looks pretty legit... prolly have to go out and try it out for yourself.. loollool
06-03-2009, 10:47 AM
infurNOS

yep
lol
06-03-2009, 10:50 AM
Tai

Adjusting damper on stock shocks and now this.
06-03-2009, 01:58 PM
ECU-MAN

you can hit VTEC in any gear forward or revers

only factor is you have to go faster than 30Km/h or it will not kick in

the PGMFI ECU does not know what gear your car is in on MT
06-03-2009, 02:01 PM
kazam

y do u wanna hit vtec in reverse LOL
06-03-2009, 02:04 PM
tayl51601

Plus you need to be doing at least more than the RPM that vtec is set to kick in at......... I dont know where the revs normally are in reverse because im usually looking behind me lol

You have to be nuts though to want to reverse with vtec haha
06-03-2009, 02:44 PM
infurNOS

Quote:

Originally Posted by Tai

Adjusting damper on stock shocks and now this.

whats your point?
06-03-2009, 02:49 PM
jaydenn

Quote:

Originally Posted by kazam

y do u wanna hit vtec in reverse LOL

LOL! :thumbsup:
06-03-2009, 03:07 PM
hero

will the speedo hit 30kmph if you car is going backwards.?

if its on teh old speedo cable ones.. you k's would go backwards means you would be -'ve kmph
06-03-2009, 03:08 PM
hywindz

Exactly, what is the point of this question? Just a hunch but I think Tai is trying to say this thread is pointless.
06-03-2009, 03:10 PM
98vtir

Quote:

Originally Posted by kazam

y do u wanna hit vtec in reverse LOL

lol thats funny as. sure you can. i've never done it tho and don't plan on it :P
06-03-2009, 03:19 PM
infurNOS

Quote:

Originally Posted by hywindz

Exactly, what is the point of this question? Just a hunch but I think Tai is trying to say this thread is pointless.

exactly, thats why i put it in the noob or basic questions forum.
no harm in asking...
thanks guys :thumbdwn:
06-03-2009, 03:25 PM
cymax

Quote:

Originally Posted by hero

will the speedo hit 30kmph if you car is going backwards.?

The speedo on your dash will not move no matter how fast you go on reverse. Unless you have a digital speedo or an RSM.
06-03-2009, 03:26 PM
ECU-MAN

Quote:

Originally Posted by hero

will the speedo hit 30kmph if you car is going backwards.?

if its on teh old speedo cable ones.. you k's would go backwards means you would be -'ve kmph

the odometer might go backwards on a cable speedo but the ECU only see pulses of 5v. so it measures as forward speed
06-03-2009, 03:28 PM
ECU-MAN

Quote:

Originally Posted by cymax

The speedo on your dash will not move no matter how fast you go on reverse. Unless you have a digital speedo or an RSM.

not true

the VSS sends signals regadless of direction. and its the same signal in either direction

only cable Speedo wont register
06-03-2009, 03:39 PM
hero

jsut 12v the vtec soleniod to kick vtec in.

why not for the hell of it and put it on uptube
06-03-2009, 03:49 PM
cymax

Quote:

Originally Posted by ECU-MAN

not true

the VSS sends signals regadless of direction. and its the same signal in either direction

only cable Speedo wont register

Fair enough with that theory. But I don't remember my speedo moves in my EG and DC2 when I reverse my car. I only see my RSM indicating the speed.

I'll try it later after work when I collect my car later. :)
06-03-2009, 03:58 PM
MMike

Quote:

Originally Posted by kazam

y do u wanna hit vtec in reverse LOL

to reach 88mph and go back to the future fa sho
06-03-2009, 05:03 PM
ECU-MAN

Quote:

Originally Posted by cymax

Fair enough with that theory. But I don't remember my speedo moves in my EG and DC2 when I reverse my car. I only see my RSM indicating the speed.

I'll try it later after work when I collect my car later. :)

dont crash while testing it
06-03-2009, 05:15 PM
hywindz

Quote:

Originally Posted by MMike

to reach 88mph and go back to the future fa sho

hahha my vtec just kicked in backwards yo!
is there such thing as racing backwards?
06-03-2009, 05:55 PM
migoreng

how about dyno your car in reverse gear?
:P
07-03-2009, 12:07 PM
OMG.JAI xD

Mates done it before.

On a dc2r with i/h/e. Vtec DEFINATELY kicked in.

Reverse gear gets pretty loud at those revs though.
07-03-2009, 12:26 PM
STTICH

wont that be 'ouch' in the gears? lol
07-03-2009, 07:47 PM
Alpine

VTEC JUST KICKED IN REVERSE, Y0

http://www.car-accidents.com/2005-Car-pics/1-23-05.jpg
09-03-2009, 10:10 AM
cymax

Quote:

Originally Posted by cymax

Fair enough with that theory. But I don't remember my speedo moves in my EG and DC2 when I reverse my car. I only see my RSM indicating the speed.

I'll try it later after work when I collect my car later. :)

Hey ECU-Man, speedo moves as I go faster when I was reversing. Thanks for the great info. My bad for giving wrong information.

:)
11-03-2009, 11:04 AM
garagedefend

yeah it can. you can also do it in neutral if you've got the box set to do a standing vtec xover
11-03-2009, 02:42 PM
ECU-MAN

Quote:

Originally Posted by cymax

Hey ECU-Man, speedo moves as I go faster when I was reversing. Thanks for the great info. My bad for giving wrong information.

:)

thats right

usually when your going fast enough in revers to make the needle move you not looking at the needle, your looking behind you :)
11-03-2009, 11:24 PM
VTECMACHINE

LOL LOL LOL LOLLLLL!!!! I started a thread like this on JDMST years ago. hahaha!!

Yes it is possible. Dave R/Shifty/The Dave did in infront of my eyes. It's awesome, and makes me want to get straight cut gears. hahah.. LOL...
11-03-2009, 11:32 PM
euromandeluxe

Quote:

Originally Posted by kazam

y do u wanna hit vtec in reverse LOL

To turn a FF into a rear engined RWD.

Traction ftw!
11-03-2009, 11:53 PM
Chernoby1

Quote:

Originally Posted by euromandeluxe

To turn a FF into a rear engined RWD.

Traction ftw!

More like a Forklift than a porche though... rearwheelsteering is fooked lol.
12-03-2009, 12:45 PM
dc2dc2dc2

i've done it before
in a paddock
pretty fun
lol
12-03-2009, 05:34 PM
euromandeluxe

Quote:

Originally Posted by Chernoby1

More like a Forklift than a porche though... rearwheelsteering is fooked lol.

Oversteer ftw!
12-03-2009, 07:12 PM
johnny5

jesus... u learn something new everyday...
12-03-2009, 10:07 PM
paps02

biggest fail thread in the world. why would you want to vtec reverse???

made me lol though
13-03-2009, 08:55 AM
jdm_ek4yo

LOL. I wouldn't say this thread fails.
Vtec in reverse is awesome as long as u dont hit nething.