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View Full Version : HOW TO: disable / disconnect / remove the 5k rev limiter



trinydex
10-08-2007, 12:17 PM
with this mod , it will be easier to launch the evo with consistent 60 foot times of less than 2 seconds at the 1/4 mile.



use this mod at your own risk!
the rev limiter acts as a safety device so that evo drivers dont do any unnecessary damage by launching the car too hard.



before mod:
the limiter on a 2005 evo kicks in at 5000 rpms when the car is in gear, clutch depressed, and has no forward momentum
video clip - http://www.we-todd-did-racing.com/wetoddimage.wtdr/wMTEwNzc5MDZzNDEzZGZkMzF5NTQx



what you need, or what i used
1. phillips screw driver
2. small pair of needle nose pliers
3. 10mm wrench or socket



Step 1:
Disconnect the battery (just the negative side)
http://www.hostdub.com/albums/burningmoney97/DSC03021.sized.jpg






Step 2:
Remove this piece that is located below the steering wheel. Behind it is the fuse panel. This hole is what i used 2 look through
http://www.hostdub.com/albums/burningmoney97/100_4448.sized.jpg


I also opened the lower dash (using the phillips screwdriver on the 2 screws), so i could make it easier for me to fit my left hand with the pliers toward the plug that needs to be disconnected.
http://www.hostdub.com/albums/burningmoney97/100_4453.sized.jpg







Step 3:
Locate plug
http://www.hostdub.com/albums/burningmoney97/100_4455.sized.jpg

http://www.hostdub.com/albums/burningmoney97/100_4444a.sized.jpg






Step 4:
Disconnect plug
using the phillips screw driver, push up on the white tap that holds the plug in place
http://www.hostdub.com/albums/burningmoney97/100_4457s121.sized.jpg


while pushing up , pull the plug out using the pliers
http://www.hostdub.com/albums/burningmoney97/100_4462b1.sized.jpg







Step 5:
just let the plug dangle.
http://www.hostdub.com/albums/burningmoney97/100_4466.sized.jpg


then close up lower dash and reconnect battery




no more rev limiter video - http://www.we-todd-did-racing.com/wetoddimage.wtdr/wMTEwNzc4OTZzNDEzZGZkMzF5NTQx





however, this mod does have a strange aftereffect..........
{when shifting at high rpms, the rpms will drop much slower than before}
example: Both of these videos are while accelerating in 2nd gear and then i fully depress the clutch. The second video doesnt look like it, but the clutch was fully depressed for the entire time.
Video: before mod - http://www.we-todd-did-racing.com/wetoddimage.wtdr/wMTEwNzc4NzZzNDEzZGZkMzF5NTQx
after mod - http://www.we-todd-did-racing.com/wetoddimage.wtdr/wMTEwNzc4ODZzNDEzZGZkMzF5NTQx



so after you do this mod, your evo will act a little different. this is a normal occurrence for evos with this mod. just be advised that it will happen and dont freak out when it does



now this slow rpm drop can be either a good or bad thing. depending on how you look at it.
Good -makes rev matching easier
Bad -when coasting in gear it will feel like you still have your foot on the gas.
-making it more difficult to slow down before a turn. especially on a road course





Finally, this mod can be easily reversed by simply disconnecting the battery and reinstalling the plug

djslik408
09-09-2008, 09:35 PM
Is it just me the pics arent just pulling up? Can we have the moderator please fix the pics! Thanks.

earlyapex aka jack ass
09-09-2008, 09:41 PM
No reason to do the actual physical mod, it can be changed via the ecu.

RREVOVIII
09-09-2008, 09:43 PM
Is it just me the pics arent just pulling up? Can we have the moderator please fix the pics! Thanks.
same here, none of the links work also....

RREVOVIII
09-09-2008, 09:43 PM
No reason to do the actual physical mod, it can be changed via the ecu.
+1

djslik408
10-03-2008, 10:26 AM
Both video link arent pulling up either.

TcJayLee
11-28-2008, 07:16 PM
Does anyone have a different link for the videos?