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Registered User
just looking for some opinions on rev boxes. i know the spark curves of the adjustable ones may make the bike easier to start and have better throttle response. however, for twice the price i don't know if they are worth it. if it will give a slight performance gain or benefit, i might as well get one. if not, i will just get a regular TC box or something similar. any suggestions would be great.
2005 450r
*sold* 2001 400ex
"If you think you can, you can. If you think you can't, your right."
"A leader will take you where you want to go. A great leader will not necessarily take you where you want to go but where you ought to be."
"If you want to do something, you will find a way; if you don't, you'll find and excuse!"
"Its not aptitude but attitude that determines your altitude."
Faaaaaaast
I heard on one of the adjustable ones (dyna FS i think) you can adjust your RPM limit when the clutch is pulled in for perfect holeshots...
2005 Yamaha YFZ450
AIM= EXMX54
Registered User
Originally posted by Florida400EX
I heard on one of the adjustable ones (dyna FS i think) you can adjust your RPM limit when the clutch is pulled in for perfect holeshots...
that is the msd. i am still undecided. i am not really worried about holeshots but mainly better spark, throttle response, etc.
2005 450r
*sold* 2001 400ex
"If you think you can, you can. If you think you can't, your right."
"A leader will take you where you want to go. A great leader will not necessarily take you where you want to go but where you ought to be."
"If you want to do something, you will find a way; if you don't, you'll find and excuse!"
"Its not aptitude but attitude that determines your altitude."
Crainius Maximus
I have the MSD ignition, and I have been extremely impressed with it. Like I had said before, the advantage this ignition has over the Dyna and Vortex boxes is that it comes with a new ignition coil that puts out 30,000 volts, over the stock ignition's 16,000.
The throttle response is unreal with this setup, and it fires up immediately every time. I defninitely picked up a BUNCH of low end torque, and with the high RPM timing retard, I picked up some HP on the top end as well.
I really like the fact that you can adjust the timing advance, both in how much and how fast you want it to reach full timing. It also comes with a fully adjustable two-step rev limiter - definitely badarse for drag racing at the dunes!
If any of you want more details, just let me know!
-Jordan
- 2002 400EX - HMF Ballance full system, FCR39, MSD ignition, PRM bumper/grab bar, Pro Armor skids, Trail Tech bars/clamp, IMS-Roll Design pegs and heel guards, Houser +1 LT/Elka ZPS front end, Elka ZPS dual rate rear w/LT linkage, Lonestar axle, Hiper Tech 3s, Holeshot HDs, YFZ front calipers, YFZ parking brake conversion, Spal cooling fan, CFM oil tank, 450R tail/brake light
- 2009 YFZ450R - Yoshimura RS-2 full system, CFM airbox, MSD Blaster, GYTR bumper and chassis skid, PRM swingarm skid
Registered User
thanks for the info. yeah i knew you were using the msd. i really didn't want to mess with that one because of the installation. however, i will consider. i just need to think a bit more.
2005 450r
*sold* 2001 400ex
"If you think you can, you can. If you think you can't, your right."
"A leader will take you where you want to go. A great leader will not necessarily take you where you want to go but where you ought to be."
"If you want to do something, you will find a way; if you don't, you'll find and excuse!"
"Its not aptitude but attitude that determines your altitude."
Crainius Maximus
Yes, the installation isn't too fun...
- 2002 400EX - HMF Ballance full system, FCR39, MSD ignition, PRM bumper/grab bar, Pro Armor skids, Trail Tech bars/clamp, IMS-Roll Design pegs and heel guards, Houser +1 LT/Elka ZPS front end, Elka ZPS dual rate rear w/LT linkage, Lonestar axle, Hiper Tech 3s, Holeshot HDs, YFZ front calipers, YFZ parking brake conversion, Spal cooling fan, CFM oil tank, 450R tail/brake light
- 2009 YFZ450R - Yoshimura RS-2 full system, CFM airbox, MSD Blaster, GYTR bumper and chassis skid, PRM swingarm skid
Registered User
another thing is, i will be running around 10.8:1-11:1 compression and i will be using 93 octane. with the extra spark and advancing the timing, i may just need some race fuel. heck, the more and more i think about it, the more and more i just want to simplify things and buy a TC box.
2005 450r
*sold* 2001 400ex
"If you think you can, you can. If you think you can't, your right."
"A leader will take you where you want to go. A great leader will not necessarily take you where you want to go but where you ought to be."
"If you want to do something, you will find a way; if you don't, you'll find and excuse!"
"Its not aptitude but attitude that determines your altitude."
Junior Member
im getting the tc box it is an unlimited rev box which will be fine because i know how far i will push the limits of my quad....in fact that and my cam, carb and piston should be here any way now!
400ex all torn up beeing rebuilt
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