Weller's Dyno Run Results comparing the YXZ1000R to the XP1000 - Stock and Modified

62272 Views 82 Replies 39 Participants Last post by Deeyoh, Sep 16, 2015

450grl

Discussion Starter · Sep 14, 2015

Here are our dyno sheets showing the YXZ1000 up against the Polaris RZR XP1000.

The top image shows the YXZ with our new WR Edition full dual exhaust with the YXZ stock airbox/stock filters and an XP1000 with dual Muzzy's and aftermarket filter/intake. The bottom image shows both vehicles in stock form with no mods. We use the same size dyno tires for all of our dyno runs for continuity.

Pretty cool gains from just a full pipe on the YXZ!

Text Line Parallel Pattern Pattern

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Bravo_Thr33

· #2 · Sep 14, 2015

This has a nicer torque curve than I was expecting. Thanks for the info. Looks like this will be a fun machine.

Gunny

· #3 · Sep 14, 2015

When I first looked at this I thought oh shit, no horsepower until rpms are reached. But the torque curve
is much better than I expected and it will have plenty to get you rolling!!
Looks great

Gunny

· #4 · Sep 14, 2015

This is kind of a crazy looking hp curve, don't you all think. You know the YXZ is at rpm before it shifts??? Why does the curve build gradually like that?

topgun

· #5 · Sep 14, 2015

Nice, thanks for posting!

Turboedsupe

· #6 · Sep 14, 2015

Gunny said:
This is kind of a crazy looking hp curve, don't you all think. You know the YXZ is at rpm before it shifts??? Why does the curve build gradually like that?

Have you ever seen a dyno graph? They hit a certain gear then slow down to a low rpm and then gun it to redline. Looks like 4th gear was used.

Gunny

· #7 · Sep 14, 2015

So you are saying they started the at 18 mph in 4th gear? That would splain the missing shift points!!

Turboedsupe

· #8 · Sep 14, 2015

It would be nice to have rpm instead of mph but either way thanks for posting the info

DV8TED

· #9 · Sep 14, 2015

Those are some very good gains with only an exhaust! I can't wait to see the additional results once the programming starts to get re tuned. I'll bet another 10hp is very realistic with the programming and advancing the ignition. Nice post!

Bravo_Thr33

· #10 · Sep 14, 2015

I guess theres a few people not used to a relatively normal dyno graph, and are only used to seeing CVT machine dyno graphs... haha... its all good though

Kalop

· #11 · Sep 14, 2015

So... the claim is 77hp to 86hp with ONLY exhaust change (no ecu, no intake, nothing else) ????

If that's claim... hate to be the THAT GUY but I just don't see it happening.

Thanks for posting dyno's though.

Flame away.

Reactions: 2

Desertdog

· #12 · Sep 14, 2015 (Edited)

DV8TED said:
Those are some very good gains with only an exhaust! I can't wait to see the additional results once the programming starts to get re tuned. I'll bet another 10hp is very realistic with the programming and advancing the ignition. Nice post!

ECU reprogramming is already under way by Benchmark performance

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450grl

Discussion Starter · #13 · Sep 14, 2015

Kalop said:
So... the claim is 77hp to 86hp with ONLY exhaust change (no ecu, no intake, nothing else) ????

If that's claim... hate to be the THAT GUY but I just don't see it happening.

Thanks for posting dyno's though.

Flame away.

We have zero reason to lie about it....can't manipulate or fluff numbers on our dyno, either. If you have ever bought a Yamaha sport quad you already know how easy it is to uncork the stock stuff........

Reactions: 5

Hoseclamp

· #14 · Sep 14, 2015

Nice numbers, glad to see realistic XP numbers too.

Reactions: 1

Desertdog

· #15 · Sep 14, 2015

450grl said:
We have zero reason to lie about it....can't manipulate or fluff numbers on our dyno, either. If you have ever bought a Yamaha sport quad you already know how easy it is to uncork the stock stuff........

Yep, exhaust, intake and tuner on my raptor 700 made it feel like a whole new machine. It actually gave it a lighter feel because it was so much more responsive.

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Hoseclamp

· #16 · Sep 14, 2015

Lol. My outy xt with a 1133 kit felt like a big husky enduro afterwards. Blip and let the rear steer it

BlueCoyote

· #17 · Sep 14, 2015

Nicely done Weller Racing!
And after some intake and re flash work it should get even better.
IMHO Yamaha left lots more HP to be found - so the 2017 can have 122hp, etc.

Reactions: 1

TxChristopher

· #18 · Sep 15, 2015

450grl said:
We have zero reason to lie about it....can't manipulate or fluff numbers on our dyno, either. If you have ever bought a Yamaha sport quad you already know how easy it is to uncork the stock stuff........

Alba's dyno showed the factory AFR to be on the rich side (no surprise there) so it is also not surprising that gains could be had easily on the exhaust side which would naturally lean it up for more power.

Reactions: 2

mtoma

· #19 · Sep 15, 2015

Nicely done Weller and thanks for posting 450grl.

Hey Kalop, so are you saying they fudged dyno results?

zztop

· #20 · Sep 15, 2015

Seems like its getting better n better.

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