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XMXZX

2012 wr 450 mods

14 posts in this topic

Just bought a 12 wr about a month ago and i put 100 miles on it so far. I had an 05 and liked it a lot. I've done a lot of searching and just have a question about the gytr ecu. I do mostly road and trail riding not crazy aggressive. I plan on making it street legal, gytr fmf pipe, and the new ecu. It seems my 05 was a lot faster and I just want to wake the new one up a little bit.

Do you have to by the programmer for the ecu? Not sure if I really need it if I install the new ecu and take out the throttle stop. Would it be comparable to the 05?

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Wow, you must be really patient to put 100 miles on a completely stock one! I recently got a 2012 model as well and uncorked it immediately.

Yes, you need the programmer to load maps into the ecu. Once you have your pipe installed, throttle stop removed, and the ecu with an appropriate map on the bike, it will run like it is supposed to. I also removed the baffle from the air box (not sure how critical this is).

Maybe search "2012" in this forum? Lots of good info.

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The GYTR ECU does come with a map installed. Way better than the stock ECU. But you did change the pipe. So I would get the programer. With the stock pipe the GYTR hits hard. I set the timing back a little to smooth it out. With the FMF Q4 you need more fuel and there are some good maps out there. I run a custom map that still uses less timing than other FMF maps. It takes the hard hit out of it.

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Thanks for the replies. I am going to order the ecu and pipe soon and see how it is with the map that comes with it before I order the programmer.

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Thanks for the replies. I am going to order the ecu and pipe soon and see how it is with the map that comes with it before I order the programmer.

You'll be impressed with the performance increase from just the pipe and ECU. If you get the Q4 you don't need to worry about adding fuel. Your bike will run fine.

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I just bought a 2012 WR450F in May. Had dealer install GYTR FMF 4.1 and ECU/Throttle race kit. Bike with base settings (all Zeros) felt terrible to me. Coming from "00 Husky 610TE the WR felt like a two stroke (no bottom end and nasty hit). I have never shifted so much in the last 13yrs. I never thought I would have to 'lug' a 450 in second with any forward momentum. On my second time out, while changing grip, I looped the bike and crushed the muffler like a soda can. Recently, I had dealer reprogram the ecu to "riding in slippery conditions" map and bought a FMF Q4. I have yet to take the bike out to test the new map but feels much better on street test ride and sounds 100% better. Is this engine just normally 'buzzy' sounding? (Again just comparing to my husky)If the WR didn't turn so much better than the 610 I would sell the WR and keep the Husky. I like low end torque.

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I was planning on buying the FMF powercore 4 Gytr slip on silencer. I see some of you are running the q4 hex. What's the difference and which one would you suggest? The one I was looking at is $279 shipped.

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Try looking here:

http://www.thumpertalk.com/topic/1021269-1213-wr450-comp-ecu-maps/

 

I can "lug" my bike running the #9 map from this thread.

 

I'll second that. I have the Q4 Hex and running (a slightly modded) version of map #9, and I can lug my bike plenty. It's actually pretty mellow off the bottom, and very manageable in tight single track. It still has plenty of mid/top power, I can snap wheelies in 3rd off the throttle alone. The stock all zeros map was way too snappy and snatchy off the bottom for me.

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I was planning on buying the FMF powercore 4 Gytr slip on silencer. I see some of you are running the q4 hex. What's the difference and which one would you suggest? The one I was looking at is $279 shipped.

 

I went with the Q4 Hex as I think the bike has plenty of power as is (my previous bike was a 250F) and I don't want it loud. I called FMF and asked them about Q4 vs Powercore with the quiet insert, and they said the Powercore runs best open, and if you're going to run the insert all the time, you're better off with Q4 that's designed to run quiet from the get go.

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I went with the Q4 Hex as I think the bike has plenty of power as is (my previous bike was a 250F) and I don't want it loud. I called FMF and asked them about Q4 vs Powercore with the quiet insert, and they said the Powercore runs best open, and if you're going to run the insert all the time, you're better off with Q4 that's designed to run quiet from the get go.

I went with the Q4 Hex for the same exact reason. Was riding a YZ250F and it was loud to the point of being tiring, even with earplugs. I bought the WR to be a trail bike and was looking for tractable power at all speeds, not just maximum hp on the track. The Q4 is surprisingly quiet but the motor still revs nicely...does not seem choked up at all.

We rode some deep sand this weekend, and I loved that the WR didn't have to be revved to the moon...plenty of torque.

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Question about the programmer... can it be used on more than 1 bike? Or is it like a diesel chip, that can not be used on a different truck until you remove it from the other?

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Question about the programmer... can it be used on more than 1 bike? Or is it like a diesel chip, that can not be used on a different truck until you remove it from the other?

 

Definitely more than one bike. Should work on all FI WR/YZF 450s. It can store up to nine maps, so you could definitely share with a buddy if that's what you're after.

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