Great article on 2011 Apex EXUP

[journeyman]

I also rode 2011 apexes in hurly wi. We did line up 2010 apex and 2011 and bottem and mid range it pulls 2 sled lengths on 2010! Top end was very close we only had room to run about 1/4 mile. yamaha did have 2010 xtx to ride also and I was not impressed. It was the poorest handeling machine I have ever rode, steered hard, and did not ride any better then 2011 128 apex. We did put 150 miles on in some good and some ruff trail conditions. The 2011 works better than I thought it would but I too think it is over priced!

You mean 2010 Nytro XTX I assume being the Apex XTX is new for 2011.

 

[LazyBastard]

Go to the R1 forum and tell them the Exup is in there to boost low and midrange power....lmao, that topic has been beat to death since 1998.

I wouldn't go there and tell them THAT, but I WOULD go there and tell them that it is there to boost the TOP end without COMPROMISING the LOW END.

Ever wonder why race cams make your engine idle like CRAP?

 

[cacsrx1]

Go to the R1 forum and tell them the Exup is in there to boost low and midrange power....lmao, that topic has been beat to death since 1998.

I wouldn't go there and tell them THAT, but I WOULD go there and tell them that it is there to boost the TOP end without COMPROMISING the LOW END.

Ever wonder why race cams make your engine idle like CRAP?

I agree with that to a point. The "low end" on a sled vs. bike are greatly different. The only small advantage the exup has on a bike is 5500RPM and below which is only a hp or 2. Pulling away from a stoplight it might make a slight difference. How many Apexes are gonna cruise at less than 5500 rpms. Unless the "new" apex engine is in a totally different state of tune vs the the old apex-Rx1-and 3 different generations of R1's, your sled will make more power without it.
I do know why the solid roller in my BBC idles badly, and I do know that when your buddys shove shop rags in the collectors it doesnt idle any better.

 

[cacsrx1]

Someone is going to make a ton of money when they develope a kit that includes a 4-2-1 header that does not include the EXUP, and the jumper wires that fool the computer into thinking the exup is still hooked up. Stick a potatoe in your exhaust, does your sled have more power now? is the power more linear?
Since 1998 people have been throwing the EXUP and the header in the dumpster on the R1 sportbikes....why? Because an aftermarket header (4-2-1) without an exup makes more useable power everywhere. This holds true from 1998's all the way to just before the crossplane abortion.

On my 2005 R1 a TI Force 4-2-1-2 exhaust made 17 more hp at 7000 rpm.

Did you really have the bike dynoed with the aftermarket exhaust or are you going by what the mfg. said? Sounds a little fishy. The 2011s I rode were plenty fast and didn't respond like they had a potatoe in the exhaust pipe.

Don't ya love it when people make all sorts of rash claims without even sitting on a new machine??

Go to the R1 forum and tell them the Exup is in there to boost low and midrange power....lmao, that topic has been beat to death since 1998. BTW my R1 only made 17 more hp at 7000rpm, not the 21 that the mfg. claim. Do a little research before you think the exup is the best thing ever.

Did I say it was the best thing? No, I just said it seemed plenty powerful. I had it up to 95 on the speedo in a very short distance before I had to let off. I have spent plenty of time on the former Apexes and I wouldn't say it lost anything by the seat of the pants. Furthermore.......you didn't answer my question. Did you have the bike dynoed to prove your point? I don't care if it is in the midrange or not....these aftermarket companies make all sorts of claims to sell their product. That is my point.

Dynoed twice as a matter of fact. Once stock and once after the custom map, the custom map proved to be worth 5 hp almost everywhere in the curve vs. the dynojet map for this particular set of pipes.

 

[sx7001]

Go to the R1 forum and tell them the Exup is in there to boost low and midrange power....lmao, that topic has been beat to death since 1998.

I wouldn't go there and tell them THAT, but I WOULD go there and tell them that it is there to boost the TOP end without COMPROMISING the LOW END.

Ever wonder why race cams make your engine idle like CRAP?

I agree with that to a point. The "low end" on a sled vs. bike are greatly different. The only small advantage the exup has on a bike is 5500RPM and below which is only a hp or 2. Pulling away from a stoplight it might make a slight difference. How many Apexes are gonna cruise at less than 5500 rpms. Unless the "new" apex engine is in a totally different state of tune vs the the old apex-Rx1-and 3 different generations of R1's, your sled will make more power without it.
I do know why the solid roller in my BBC idles badly, and I do know that when your buddys shove shop rags in the collectors it doesnt idle any better.

You are correct, the new Apex engine is in a totally different state of tune compared to the old Apex engine and bike motors. Airbox, injectors, cams, cam timing, compression, ignition timing and exhaust just to name a few have been changed to work with the Exup system. Also the sled engine peaks at a much lower rpm (compared to the bike)and uses a CVT system. This engine will run on regular or premium fuel with full potential on premium. I know the price of the 2011 is turning alot of people off but once it hits the snow, gets broken in and set up it will be impressive.

 

[cacsrx1]

Go to the R1 forum and tell them the Exup is in there to boost low and midrange power....lmao, that topic has been beat to death since 1998.

I wouldn't go there and tell them THAT, but I WOULD go there and tell them that it is there to boost the TOP end without COMPROMISING the LOW END.

Ever wonder why race cams make your engine idle like CRAP?

I agree with that to a point. The "low end" on a sled vs. bike are greatly different. The only small advantage the exup has on a bike is 5500RPM and below which is only a hp or 2. Pulling away from a stoplight it might make a slight difference. How many Apexes are gonna cruise at less than 5500 rpms. Unless the "new" apex engine is in a totally different state of tune vs the the old apex-Rx1-and 3 different generations of R1's, your sled will make more power without it.
I do know why the solid roller in my BBC idles badly, and I do know that when your buddys shove shop rags in the collectors it doesnt idle any better.

You are correct, the new Apex engine is in a totally different state of tune compared to the old Apex engine and bike motors. Airbox, injectors, cams, cam timing, compression, ignition timing and exhaust just to name a few have been changed to work with the Exup system. Also the sled engine peaks at a much lower rpm (compared to the bike)and uses a CVT system. This engine will run on regular or premium fuel with full potential on premium. I know the price of the 2011 is turning alot of people off but once it hits the snow, gets broken in and set up it will be impressive.

Cams, heads,pistons,compression,bore,stroke,secondary intake butterflies, variable length velocity stacks, catalytic converters, etc.....have all been changed in the bikes over the years with the result of the exup being the same. I hope people dont jump for joy when the catalyatic converter shows up on your sled adding heat, weight, cost, and taking your horsepower.

 

[LazyBastard]

I hope people dont jump for joy when the catalyatic converter shows up on your sled adding heat, weight, cost, and taking your horsepower.

It will definitely come to that eventually. Probably hit the lower power sleds first, likely the 120 and 130 Vectors (or whatever there is when it hits), VK, etc. These sleds are intended to be somewhat moderate/practical, so robbing them a little bit won't make too much of a difference.

 

[LazyBastard]

I do know that when your buddys shove shop rags in the collectors it doesnt idle any better.

Wouldn't expect it to... the restriction has to be at the right place and the right amount in order for it to reflect the pressure waves properly. Remember that the exhaust system was designed by a room full of japanese engineers with pocket protectors -- wasn't just a matter of blocking it off.

 

[cacsrx1]

I hope people dont jump for joy when the catalyatic converter shows up on your sled adding heat, weight, cost, and taking your horsepower.

It will definitely come to that eventually. Probably hit the lower power sleds first, likely the 120 and 130 Vectors (or whatever there is when it hits), VK, etc. These sleds are intended to be somewhat moderate/practical, so robbing them a little bit won't make too much of a difference.

Cats showed up on the literbikes before the 600's.

 

[sx7001]

I hope people dont jump for joy when the catalyatic converter shows up on your sled adding heat, weight, cost, and taking your horsepower.

It will definitely come to that eventually. Probably hit the lower power sleds first, likely the 120 and 130 Vectors (or whatever there is when it hits), VK, etc. These sleds are intended to be somewhat moderate/practical, so robbing them a little bit won't make too much of a difference.

Cats showed up on the literbikes before the 600's.

My 2001 Yamaha XR1800 jet boat had cats on it. 1200cc 2 strokes.

 

[cacsrx1]

I do know that when your buddys shove shop rags in the collectors it doesnt idle any better.

Wouldn't expect it to... the restriction has to be at the right place and the right amount in order for it to reflect the pressure waves properly. Remember that the exhaust system was designed by a room full of japanese engineers with pocket protectors -- wasn't just a matter of blocking it off.

Sad thing of it is, SEVERAL different rooms of japanese engineers figured out how to make more low/mid-torque/horsepower and retain peak hp with overrun capability not using a heavy, expensive, servo, which will sooner or later require some sort of maintenence.

 

[danq]

I wonder if the same engineers that designed the current exhaust system got to work on the "new exup" system? If they did, I hope they considered the extra weight of the exup and redesigned the poor cracking flex pipe, thin titanium Y pipe, and eroding donut system...

 

[lakercr]

I wonder if the same engineers that designed the current exhaust system got to work on the "new exup" system? If they did, I hope they considered the extra weight of the exup and redesigned the poor cracking flex pipe, thin titanium Y pipe, and eroding donut system...

The exhaust system on the 2011 Apex (including the EXUP) is lighter than the exhaust it replaces.

 

[low slung]

cool pic.......

 

[LazyBastard]

Well as I've mentioned, its not that big of a deal.

The main thing is that this is designed as a retrofit to an existing engine design rather than being a whole new engine. It is much easier and less expensive to make changes like this (cams + exhaust + intake) than it is to design a new HEAD. VVT would blow the socks off of this, but would definitely be a much more expensive change to make since it would require a whole new head casting and cams/valves/etc. design. All this required in terms of the head/valves/etc. was a change in the cam profiles, and that is a simple matter of reprogramming the machine that grinds the cams with the new profile specs.

I do know that when your buddys shove shop rags in the collectors it doesnt idle any better.

Wouldn't expect it to... the restriction has to be at the right place and the right amount in order for it to reflect the pressure waves properly. Remember that the exhaust system was designed by a room full of japanese engineers with pocket protectors -- wasn't just a matter of blocking it off.

Sad thing of it is, SEVERAL different rooms of japanese engineers figured out how to make more low/mid-torque/horsepower and retain peak hp with overrun capability not using a heavy, expensive, servo, which will sooner or later require some sort of maintenence.