I've seen a couple of manufacturers have their exhaust systems dyno'd so I thought I would make a thread with it all in one place. Also if you have a custom setup (like Mr. 5W0P3) and you get it dyno'd please post it up here.

Please make sure that you post all of the setup along with numbers represented. (In case someone is at work and may not be able to see hosted images)

Also, please keep the posts in here on-topic as I'd like to sticky this for everyone.

Thanks!

-Gary



****Late edit****

Please post if it's your dyno'd numbers or the manufacturers.

From Two Brothers:

43.1 hp : Slip on, Juice Box and no lid.
40.5 hp : Stock

http://i82.photobucket.com/albums/j254/gwwaddle/TRX700XX/twobrothersdyno.jpg

From HMF:

Blue=all stock
Red=HMF Slip on, airbox lid off, Optimizer
Green=HMF Full system, airbox lid off, Optimizer
Peak HP:
Stock 39 HP
Slip on, optimizer, lid off 42.5 HP 3.5 HP gain over stock
Full system, optimizer, lid off 44.5 HP 5.5 HP gain over stock
Optimizer base settings: 1.5/3.5/3.5

(sorry for the tiny pic, the one on their site was tiny too.)

http://i82.photobucket.com/albums/j254/gwwaddle/TRX700XX/700xxHMF.jpg

It's interesting to see the different baseline numbers for stock, which in my mind shows the difference in the dyno's.

The difference in the bikes too, Ive dynoed bikes that were different from each other by almost 2hp stock and modded the same. Any of those an actual member dyno sheet or they advertisement sheets by the manufacturers of the parts? That plays a little part too.

Advertisements...(sigh)

But I have since added that request to the main post and my sequential posts afterward.

Are you guys all basically running 93 octane pump fuel, or race gas with the exhaust and fuel controller upgrade?

Shouldnt be any race gas for a 10:1 engine(or a 11:1 for that matter). 93 will be just fine for 10:1-11:1, if it had anything over 100 octane it would hurt power.

<---- Pump gas. (93)

i am actually talking to one of their techs, and they said pump is fine, and all their dyno runs are on pump gas

talking the HMF techs i meant to write on the previous post

higher octain is un-need unless you are running 13-1 compression or higher

What about 92 and 91 octane?

Actually these big engines will need around 100 octane with a true 12:1 build depending on elevation and cam timing. The chamber doesnt have the right engineering to properly run pump at 12:1. The design is too "lazy" to be effecient enough at those levels. The 450s and crotch rockets have alot of engineering in the chambers and cam timing to run pump on 12:1 or there about depending on what brand we are talking.

What about 92 and 91 octane?

What ever your permium pump gas is will be fine.

i guess we will have to see when detenation ocures since thats the only reason to run race fuel is to prevent detenation. hey scuzz just for comparison throw in the dyno sheet from the raptor that on the two bros site

You betcha...one sec.

Actually these big engines will need around 100 octane with a true 12:1 build depending on elevation and cam timing. The chamber doesnt have the right engineering to properly run pump at 12:1. The design is too "lazy" to be effecient enough at those levels. The 450s and crotch rockets have alot of engineering in the chambers and cam timing to run pump on 12:1 or there about depending on what brand we are talking.

I don't think it would be recommended to run the 12:1 on 93 with a stock cam but should be fine with a stage II or higher. Would have to actually now the cam specs but generally speaking this would be ok.

I don't see a programmer listed....
http://i82.photobucket.com/albums/j254/gwwaddle/TRX700XX/twobrothersraptor.jpg

I thought the raptor had top end power... You have a big 3 dyno sheet for the raptor Bo?

I thought so too, I'm searching the raptorforums now but all I've found was people with other engine work. I'll post as soon as I find something.

ct full exh pcIII lid off vs stock
http://i552.photobucket.com/albums/jj332/hpfreek/700raptordyno.jpg

That doesn't explain much.

What exhaust?

Programmer?

Lid on/off?


I don't doubt that they make that power; I think the group needs that information.

I just IM'd one of the moderators at raptorforums to ask them if I could make a thread. I wanted to as first so as not to come off as troll-ish.

Fount one!

This thread:

http://www.raptorforum.com/forums/showthread.php?t=48819

If you read the bottom of the graph it tells you what was done.

http://i23.photobucket.com/albums/b357/dcloveridge/quads%20and%20trucks/003-11.jpg

that one was with a full ct racing exh power commander 3 and lid off

My findings as well on the 700 Raptor, very simular power band to the XX:
1st pull is stock with the baffle and lid pulled.
2nd pull is Big 3.
3rd pull is Big 3, 11:1, porting, X1 cam TB bore.
4th pull is Big 3, 13:1, porting X2 cam, TB bore.
http://i60.photobucket.com/albums/h15/Bo_White/Bo1.jpg
http://i60.photobucket.com/albums/h15/Bo_White/Bo2.jpg

These last ones look lean up top with it jumping around, it shouldn't be that. They may have been on knobby's also

They were on slicks and a 3500lb roller on a Dynojet car dyno. They will be like that, you should see a graph on knobbies lol.

Like I always say, doesnt matter the dyno or the numbers as long as you have a baseline to compare to on said dyno.

........

Like I always say, doesnt matter the dyno or the numbers as long as you have a baseline to compare to on said dyno.


Excellent point, I also believe that said base numbers need to be run reasonably close, and not 6 months apart.

Well, in a way yes for the most accuracy but thats what correction factors are for. Still will give ya a good ballpark on gains....or losses lol. I dynoed my Z28 about 7 months apart once without a single change to the car and it was .7hp off from the last time.

I imagine that if were a lot cooler for 1 vs the other it would make a bigger difference on a car.

The correction factors take that into account and recalculates the #s. SAE is the most commonly used correction factor and STD is the second most common. If you look at High Dessert Dyno sheet in the description it has SAE 1.14 or SAE 1.13 thats the multiplication factor it used to show actual power on that day with those weather conditions.

This is a dyno run on knobbies thats a comparison between a Big 3 700 Raptor and a Big 3 Raptor with 11:1 and ported head.
Big 3 Raptor pull:
LTE duals
GYTR intake
Dobeck TFi
Big 5 Raptor pull:
GYTR single exhaust
GYTR intake
Dobeck TFi
11:1 Wiseco
stock valved ported head
http://i60.photobucket.com/albums/h15/Bo_White/bovsruss.jpg

On this dyno(and most others) slicks will give ya another 3rwhp. I would have liked to put the duals on the Big 5 bike and dynoed again again to make it even better of a comparison.