Always appreciate your posts and experience with turbos. Thumbs up!

 

I might add if you can't afford a new engine don't modify the one you have LOL.

 

Valid point unfortunately very few individuals can afford to replace their engine in reality and most want more performance which can be had within reason if one chooses a reputable tuning company and conveys they need a safe trail tune on pump gas!

 

Here is a link from 2019 when I made a simular post with a guide for the 900t. It has aged pretty well since the 900t was in its infancy at the time. Hurricane Dave stated I was wrong and Ben at Turbo Dynamics also stated that I was wrong and he was making 200hp at 13.8psi of boost on the old 900t with a smaller Turbo, more restrictive exhaust etc compared to the 900r. Unfortunately the dissemination of misinformation has continued over to the 900r now!

900 Ace turbo Performance Guide

Well with all the misinformation about the tunes and HP being thrown around I thought I would offer a guide to dispel some myths and provide what I feel is legitimate and realistic expectations for this platform. Ecu tune only: Irregardless of tuning company, approximately 180hp is what you...

www.dootalk.com

 

So, with that said, what's the target boost for PEFI Stage 1R?, Hurricane ECU?. Thanks.

 

@68gmc , in your opinion, and with your testing and results, what's the best Tune out there for the masses?

 

When u and if u reply to this, state the $$ cost so we all have some knowledge of this and HP .

 

It's a bit of an oversimplification to say above X boost isn't safe.

First off, WHY isn't it safe? Injector duty cycle above 90%? Insufficient fuel to the engine causing lean condition? Need to be specific. What is the reason it's being labelled as unsafe and what is the engine damage that is going to result from the condition.

Injector duty cycle is more a long term thing, and it'll cause problems with the injectors and possibly the driver circuits in the ECU.

Lean condition, leading to knock and elevated EGT will cause damage immediately.

I can go dig up my 1R logs and post duty cycles and target boosts, but this blanket claim is an oversimplification.

 

The average person is looking for a general guide which I have provided. If your setup deviates from the aforentioned and you are comfortable with that then that is great. I am just trying to help out the average guy that wants a safe trail setup and wants to educate himself on the general safe limits of the platform.

BJK

 

68 gmc. You and I talk a lot and I think u are bang on. If u want 210 to 220. Then things need upgraded to parts. Great post well done buddy

 

@68gmc And @legend007 , thanks for answering the questions.

 

All that being said how safe is the stand alone replacement ecu tune from hurricane performance?

 

well if the hurricane ecu runs anything more than 18.5 with the stock injectors then it is running with no safety margin in the injectors so not very safe.
once a injector hits 90% duty cycle it is basically wide open...no more fuel can come out.
my stock mach z for comparison with the maxxecu and bigger injectors running 250kpa (21.5~psi) runs at around 62% duty cycle at wideopen throttle at 8200rpm and .79 lambda
And that was with VP Madditive and zero knock in the log. A very happy and safe engine!

 

@68gmc , I assume you have ran the Hurricane Ecu?, or at least have first hand knowledge?. I'm asking to know, not asking to spread BS etc. I'm just a fellow gear head, trying to weed out the BS..

 

I have first hand knowledge of the aftermath of the Hurricane ECU yes. Best case scenario some poor starting, drivability issues. Worst case scenario you are looking for an engine and that is not cool!

 

@68gmc , I appreciate the honest feedback. Thanks...

 

This is a great thread guys. Let's keep the real, factual information coming..

 

@68gmc @legend007 , is the Hurricane ECU with a upgraded Injector good?.

 

Hurricane to the best if my knowledge does not have an injector upgrade option available and is still concentrating on refining his stock injector tune. I am sure he will eventually get there and have a sound offering the the 900r but he rushed to market and unfortunately it did not go well IMHO!

BJK

 

@68gmc , again, Thanks....

 

Just posted and some food for thought if you want to upgrade your 900t/r

 

Is MoTeC M130 a thing of the past now?

 

While the Motec M130 is available through Whalen speed with John Reed Racing firmware and harness for the 900r it is important to note that Motec does not support the firmware which may or may not be an issue in the future. Also, Their core business is side by sides and support for sleds can be an issue as SxS take priority. Finally the pricing for the M130 package is a lot more expensive listing well beyond $6000.00 CAD. Availability of the Motec package is also a factor as they have been on backorder all season. In the end the Motec is still a great package but for this application there are more cost effective solutions readily available that are just as good or better.

BJK

 

I appreciate all your knowledge 68gmc. You sure do help with the decision making on what application a sled head desires to run.

 

Is MoTeC M130 a thing of the past now?
[/QUOTE]

 

Motec can be purchased through Whalen Speed

 

I would agree on that friend just called last week for full motec from Whalen roughly 7500 with everything. And all components on your sled don’t work. I shipped a second turbo there to get an another’ prure built sent in September got 13 weeks ago. They are a side by side guys If u need a complete built motor great but not cheap u have to think what u want out of your sled. This is my opinion. For the first bang for buck is mcx piggy back great little kit and pretty budget Guys would be very happy second maxx third would hurrcaine or pefi. Remember this is my opinion but I have been doing this for 30years and I ride a lot and test just don’t post because u just get hammered from guys that think they no everything but really only race don’t put big miles on like I do cheers Chris

 

I would agree on that friend just called last week for full motec from Whalen roughly 7500 with everything. And all components on your sled don’t work. I shipped a second turbo there to get an another’ prure built sent in September got 13 weeks ago. They are a side by side guys If u need a complete built motor great but not cheap u have to think what u want out of your sled. This is my opinion. For the first bang for buck is mcx piggy back great little kit and pretty budget Guys would be very happy second maxx third would hurrcaine or pefi. Remember this is my opinion but I have been doing this for 30years and I ride a lot and test just don’t post because u just get hammered from guys that think they no everything but really only race don’t put big miles on like I do cheers Chris

Well said Chris....

 

Great read , thanks for the info 68gmc, I have been watching countless YouTube videos of the can am mackerel 900r and what’s working there and coincides with the info in this post, I contacted evolution motor sports , they do the ecu operation and for 550$ . They offer ski doo 850 mods and said they plan to offer setups for the Mach in the fall . The pic is for a 550$ ecu flash the can am

 

EVO wants to get into the turbo snowmobile market? That’s great news if true…

 

BJK what data do you have to support your claims??

 

Here is some info with a datalog of stock injectors that support his claims..

 

Yet basically everyone is running 18 plus pounds of boost. Lol

 

If they were logging AFR’s they would see very lean conditions. I went through this 3 or 4 years ago with my 900. I was into the 15:1’s at just over 18lbs on a cold day.

 

He’s simply just pointing it out. If you wanna run 18 plus go ahead. I’d rather have some one be up front than cause damage to your motor. Wouldn’t you?

 

injectors are cheap and safest way to run