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tom's snowmob turbo... 30 hp?

early in the year aerocharger was claiming 190hp at 8lbs of boost in their advertiseing. people complained that it wasn't much for the money.
Now the are claiming they dyno 240hp at 7psi.
That is pretty amazing. :rolleyes: the few 800r' dyno sheets that I have seen were 220hp at 10lbs of boost with a garrett turbo. Bryce had a post somewhere that a xp makes about 8hp per lb of boost. He said the xr1200 made the most hp per lb of boost of any sled they have worked on. 9hp per lb of boost. I believe bryce.
 
another thing I laugh about is that last year their were posts from aerocharger that turbo's were getting destroyed because they were runing over 10lbs of boost and overspooling the turbo. aerocharger would not warranty them because they were overspooling the turbo. Several were posting that their aerocharger turbos were failing at 12psi.
their was a post on snow and mud where they were saying 10-12 was the highest for maximum engine durability. they didn't mention their turbo's will not stay together over 10psi.
cut and past from some posts by aerocharger_brad on snow and mud.

"Dyno testing was all done at 7psi and made 240hp even at 6psi I would estimate 231hp. "

so only 9hp per lb of boost?? Must of made 177hp stock on this dyno.

"We do believe 12psi will be the highest we will want to run and most should stay at 10psi for maximum durability of the engine."

:lol:

post located here:

http://www.snowandmud.com/forum/460/800-e-tec-turbo-systems-37830-2.html
 
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early in the year aerocharger was claiming 190hp at 8lbs of boost in their advertiseing. people complained that it wasn't much for the money.
Now the are claiming they dyno 240hp at 7psi.
That is pretty amazing. :rolleyes: the few 800r' dyno sheets that I have seen were 220hp at 10lbs of boost with a garrett turbo. Bryce had a post somewhere that a xp makes about 8hp per lb of boost. He said the xr1200 made the most hp per lb of boost of any sled they have worked on. 9hp per lb of boost. I believe bryce.

Not sure even where to start on this. 190hp at 8psi may have been the 600c we were working with. The 800 makes 240hp at 7 psi per the race dept.
 
another thing I laugh about is that last year their were posts from aerocharger that turbo's were getting destroyed because they were runing over 10lbs of boost and overspooling the turbo. aerocharger would not warranty them because they were overspooling the turbo. Several were posting that their aerocharger turbos were failing at 12psi.
their was a post on snow and mud where they were saying 10-12 was the highest for maximum engine durability. they didn't mention their turbo's will not stay together over 10psi.
cut and past from some posts by aerocharger_brad on snow and mud.

"Dyno testing was all done at 7psi and made 240hp even at 6psi I would estimate 231hp. "

so only 9hp per lb of boost?? Must of made 177hp stock on this dyno.

"We do believe 12psi will be the highest we will want to run and most should stay at 10psi for maximum durability of the engine."

:lol:

post located here:

http://www.snowandmud.com/forum/460/800-e-tec-turbo-systems-37830-2.html


DO NOT RUN A 53 ON A CAT 800 ABOVE 10psi. THE TURBO IS TO SMALL! Stock 800 E-TEC makes 164hp
Max boost depends on application and elevation. Our 930 runs 18psi.
 
When you guys first came out with your etec turbo kit their were a few posts claiming 190hp at 8 psi. The posts were clearly for the 800 etec. I believe 190hp at 8 psi. That is nothing to complain about. at say 8000' a turbo etec at 8psi is still making very close to 190hp where a NA etec would be making about 121hp at 8,000'.
I don't care what the race department says. at low boost levels (7psi is low boost) different turbos, intercoolers, etc. are only going to make a few hp difference. Nothing huge like you are claiming. no way a garrett gt 2871 is going to make 220hp at 10lbs and your making 240hp at 7psi. a 2871 on the same dyno at 10lbs probably makes 270hp then if you are claiming 240 at 7psi.
Now if you were runing 25psi and up and claimed one turbo had a significant gain over another I could maybee believe that. My money wouldn't be on the aerocharger making more power though.
It was not a 53 that people were complaining about it was a aero 66 that was comping apart at 12psi. So is it going to be ok to run 12-14lbs of boost on a etec 800 with the aero 66 or is your turbo going to fall apart and you will not warranty it because it was runing too much boost?
 
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For whatever it's worth...I was up at the snowies this weekend sitting at Lake Marie 10k ft. taking a break with our group.. Plenty of Turbos banging on the 3 ft of fresh..Killer day! A Local dealer had one of the new Aero Etechs up there on 6.5-7lbs boost..letting his customers try it out. One of them had a 22 yr old son with one of VOHK's '10 HCR 800s with 9 lbs, all titanium bolts, lightweight parts etc..Garrett race gas setup.. From what we could see, the boosted Doo without a doubt, had nearly the same climbing ability and hill speed. Both riders switched... Both gave each other compliments, imagine that!. Both were very impressive sleds. Both riders agreed they had nearly the same power..There was a second Etech pump gas setup running at 5 lbs.. most guys said the power was similar to 8-10lbs of other Turbos they had ridden.. All I'm saying is.. there's must be something related to the Rotax motor design and being boosted. They definitety like it. I have no idea if a Garrett would make the same power as the Aero, boost for boost but...I defiinitely like the idea of running less boost/more reliablility and gettting more power to the ground..Rotax has a long history of making big power,,nobody can dispute that.. My 2 cents... from what I was able to witness. One thing is for sure, it's out that the Doo race dept. has several on the snow this year on the RMSHA circuit with some of the best riders in the sport (ie; Vinnie Clark, Snow Week Racer of the Year) to name a few..I'm excited to see how it develops as Rotax and Doo definitely have the budget and resources to get it figured out, otherwise they wouldn't put their name on it..they are Frenchies right? LOL Must be something there huh? I want to say one thing before I quit..Who the heck cares who's kit is better as long as we have several companies investing in our sport and spending valuable resources...all to us, the CUSTOMER"S benefit? Seems like a good deal for us, not necassarily a great financial investment for the turbo manufacturers and suppliers IMO.. We should be more thankful and appreciative we have them ( I mean all of them),, or just go back to riding carbed normally aspirated stockers and shut up. Im really sick of the brand loyal, turbo loyal bashing that is going on this site right now..About ready to check out on this site. It used to be a great source for the sport..now it's become a punk kid, keyboard racing, drama, dik measuring contest every day..I guess in about 10yrs I'll be done riding hard..which is about the same time our sport will be dead at the rate it's going.. I'm done now....:face-icon-small-dis
 
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Yah and RK Tek Pistons make an extra 15 horse! NOT!!!!

And SLP pipes make 10 extra HP in the mid...NOT

And Reeds add an extra 5 HP.....NOT

The aerocharger E-tech on 7 lbs of boost makes 240 hp.....
 
funny though , the guy that makes the turbo says 80HP and the guy that fabs the kit says 30

who are you gonna believe ?

i want to say its a typo on toms part but its posted like 4 times all over the page ?



check it out for yourself ...

http://www.shoptomssnowmobile.com/E-TEC-Turbo-Kit-detail.htm?productId=-287654&catalogId=-844&fpg=1

Correction the Turbo and the kit are Manufactured by Aerocharger. This is the first kit for the Ski-doo with a Aerocharger that is manufactured by Aerocharger. Tom is a dealer that is spending time to create his own set up, Clutching......
 
Yah and RK Tek Pistons make an extra 15 horse! NOT!!!!

And SLP pipes make 10 extra HP in the mid...NOT

And Reeds add an extra 5 HP.....NOT

The aerocharger E-tech on 7 lbs of boost makes 240 hp.....


I Agree. Well mostly.. As I've had about every mod thinkable over the last 25 yrs but one last question for you.... How does the new Pro with an undisputed 20-less dyno HP EVEN come close to the proven new 164 HP Etech and the 160+HP M8? Ahhhhh....no way right? :face-icon-small-win

God help us if the Polaris camp sees this post or they'll come unglued on this one. LOL They'll be all over it defendind the performance of their new PRO.. and rightfully so. They flat get it done on the hill.

My personal experience is that when you do a LOT of little things on a chassis, it adds up to something big...meaning good power to the ground. Thats exactly what the new PRO has done now that they finally got in the weight game. The XP has always been hard to beat on the hill, if the owner has it even remotely dialed...So I wasnt suprised with what we saw.. I am sure the newly boosted PROs are seeing similar results with less boost than they ran on their Dragons?
 
the new pro is alot more effecient in making power so is the etec.

my personal opinon ( and i am not bashing here) is the numbers are corrected on the dyno for absoulutes. i could be wrong i have not seen a dyno sheet yet but that would be my guess.

Or there could be a new size of turbo out that is flowing a ton more air.


Is there any way that you guys at aerocharger can teach us something that we don't know or understand how you got those numbers. brp race dept did the runs so there has got to be a sheet some where.
 
At the end of the day..one could take the stance of new PRO owners.. it doesn't really matter who, when, or how the numbers were validated as much as what we see on the hill.. I think you nailed it IMO.. the new Etech chassis and motor is obviously very EFFECIENT.. which would lead one to believe that we will see more performance from the boosted Etechs and PRO's vs much higher levels on the older Dragon and M Chassis. As for specifics on the Aero Turbo Kit,, that's a question for the ones that build them.

Probably 20 guys watching there that day,, over half of them rode them. All I know is all of them have their 08/09/10 carbed XP's for sale and claim they're buying an Etech Turbos for next year. The kid on the Cat climbed off it and said "how much"... there you go.

We are told there are multiple kits on the snow now with mileage building up every day and valuable reliability testing going on.. which most guys are concerned about before taking the plunge..

Regardless, the whole group (very picky I might add) was impressed.
 
the new pro is alot more effecient in making power so is the etec.

my personal opinon ( and i am not bashing here) is the numbers are corrected on the dyno for absoulutes. i could be wrong i have not seen a dyno sheet yet but that would be my guess.

Or there could be a new size of turbo out that is flowing a ton more air.


Is there any way that you guys at aerocharger can teach us something that we don't know or understand how you got those numbers. brp race dept did the runs so there has got to be a sheet some where.




I concur,, the tesing would have to be sealevel corrected or mythical
Who did the testing at the race shop ?
I do not want to ask the wrong person , i will be in the locked door side friday and would LOVE to confirm this for the masses,,

and Rocky,, you dont have to like me but you do have to prove they can be superior to the carb sleds on the hills,, hows that going so far ?

Gus
 
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