Filter pod users, BEWARE!!

[PJ-Hunter]

DO NOT USE FILTER PODS unless you by-pass the DPM on the 04-06 REV Summits! I had filter pods on and the DPM wasn't bypassed because I didn't know that it had to be done, it created a lean condition and that is why my brand new $2500 motor burned down!

Lesson learned, do not fall for aftermarket claims that nothing needs to be
done except install them! I had used the Timbersled filters and they told me that I didn't need to re-jet, WRONG! And they never said that the DPM had to be bypassed. When you take the stock airbox out it does something with the calibration of the DPM and it compensates when it doesn't need to, therefore causing a lean condition and you cook you pistons, melt your rings, score the cylinder and pi$$ yourslef off!

If you choose to go this route, be forewarned!

 

[hymark860]

I run them but don't run dpm. Its good to know. any pics

 

[echox670]

How do you bypass the DPM?

 

[925Tundra]

Not to say you don't know what your talking about, but I put pods on my 06 600 sdi. Ran it like I stole it for 800+miles and never had any problems. I don't have anything but good to say about pods. So far...I did make sure the sensor was within the correct distance from air intake on throttle bodies. All I'm say'n is could be something else wrong with sled. I personally know three other friends with this same setup. No problems. Good thing to, because I did the fab work and install. 2 600 sdi's, 1 1000 sdi

 

[cruehead]

I'm not saying your wrong Pjthemunchkin , but I run pods with dpm on three sleds. A 06 summitx 800, 08 summitx 800 xp and a 08 freestyle 800 mod and no probs. Maybe i'm lucky!!!!!!!!!

 

[PJ-Hunter]

I run them but don't run dpm. Its good to know. any pics

here ya go! And that is what I was told by TWO different Technicians. When you run filters, you take your airbox off, disconnecting the air hose that connects the DPM to the airbox. This creates a false reading in the vacumm or something like that, causing the DPM to compensate when it shouldn't.

There was nothing wrong with my engine, in fact I was running rich (450 mains and rich on the needle). I thought my DPM may be toast, so I had it tested. Nothing wrong. No air leak in the carb boots, running the correct plugs, timing was corrected by the dealer and the BRP race Dept.

I'm not a technician or a self professed "expert" but maybe a SDI operates differently than a carburated engine.

 

[PJ-Hunter]

I'm not saying your wrong Pjthemunchkin , but I run pods with dpm on three sleds. A 06 summitx 800, 08 summitx 800 xp and a 08 freestyle 800 mod and no probs. Maybe i'm lucky!!!!!!!!!

I had a long discussion with a technician and when I told him what I was running. He stopped me right there and said "That is why you burned down" then he proceeded to explain why, but I am not a tech and I didn't go to school for it either, so I cannot even begin to try to type everything that he had said!

Not trying to start a bash fest, I was just trying to help save a fellow rider the same headache that I have right now.

 

[cruehead]

Please don't think i'm bashing you.I do believe what you were told could be true, and I was serious when I said maybe I've been lucky. I manage a brp dealer and we've been doing this with dpm machines for years. I'm going to call the race dept and find out I'll let you know tomorrow.Sorry if you took me the wrong way....

 

[piper907]

please let us know... I am still running the DPM with my pod filters, no problems yet.

 

[whitefish]

Would like to know as well. Squeeked them first time out with new pods. Not sure what to blame though. Did RKT 830, thermostat delete and pods all at the same time. Ran 390 mains, raised needle 1 from center.

 

[piper907]

As for the Timbersled set-up... I have it on my 05 and I would not recommend buying it to anyone. First, the aluminum cover is a pain in the @ss. I threw it in the garbage and zip-tied the temp sensor by the filters.
I have a ton of venting and I have never had an issue with powder getting near the filters but I would strongly recommend using prefilters for some added filtration (you NEED IT!)...
Most importantly, when you get your filters, take a good look at where the chrome endcap attaches to the filter media. My filters weren't sealed completly with glue so there were open holes where dirty air could pass by the ribbs in the filter. At the very least, pry the chrome endcaps off and re-seal them with something.. I used black gasketmaker.

I have decent EGT temps with 440mains.(pipe/can/reeds/pods).. 3000'-7000' I may go to 430s...

 

[whitefish]

piper-those filters are just $15 SPI filters that can be purchased from anyone. That may be why they are coming apart. I agree on the aluminum cover. Terrible design. I'm stll trying to figure out where my $200+ dollars went on this package.

 

[piper907]

I'm stll trying to figure out where my $200+ dollars went on this package

yup... A guy would be WAY better off buying a pair of 44mm K&Ns with prefilters. I am looking into getting a pair of PiperCross airfilters adaped to the carbs, we'll see.

 

[PJ-Hunter]

Yep, I feel pretty ripped off with the kit! Not happy with it! If you know somebody that wants the kit, I'll sell it for cheap!

Also, the tech guys told me that if the airtemp sensor wasn't in the airbox where it was supposed to be that the readings wouldn't be accurate and that would further inhibit the DPM. I tend to believe them because two different techs from two different shops who didn't know each other said the same exact thing.

 

[hymark860]

Your pictures look like its deto. Is it just a coincidence that the two sleds the went down are a 827 and 830? When I ran dpm with filters I used the k&n filters that angled 15 degrees and drilled a hole in the end for the sensor.

I don't run dpm now because I think you can get the sled to run better without it. I now use kickass filters with prefilters. I also have a set of the spi filters with nos nozzles in them for other occasions.

 

[HardcoreAK]

Key words to note here:

DO NOT USE FILTER PODS unless you by-pass the DPM on the 04-06 REV Summits! I had filter pods on and the DPM wasn't bypassed because I didn't know that it had to be done, it created a lean condition and that is why my brand new $2500 motor burned down!

Lesson learned, do not fall for aftermarket claims that nothing needs to be
done except install them! I had used the Timbersled filters and they told me that I didn't need to re-jet, WRONG! And they never said that the DPM had to be bypassed. When you take the stock airbox out it does something with the calibration of the DPM and it compensates when it doesn't need to, therefore causing a lean condition and you cook you pistons, melt your rings, score the cylinder and pi$$ yourslef off!

If you choose to go this route, be forewarned!

First thing, did the tech verify total engine leakdown before teardown?
Anything less is simply unacceptable diagnosis.

Second, Think about this: If a pod kit says there is NO need to rejet, that means it is not ADDING any airflow which was the reason of the mod. IF your kit isnt adding any airflow what is the point? I have a bit of exp. with motors and sleds and DPM, and I love throwing away airboxes, but this seems like a bit of hooey when the guy says it makes more power without adding any airflow.... besides that your motor is now breathing underhood air. (Its possible that the man said not to rejet, due to a factory over rich condition, but that would be what I call aftermarket suicide)
Third, I like timbersleds suspension stuff but I have seen these pod kits and I wouldnt recommend them to anybody to use OFF TRAIL, they are a race setup only because of the fact that they alter the characteristics of the DPM, which is trying to run with pieces missing....and thats not what you want in the middle of the mountains. I would only recommend slight improvement to the factory airbox, which can be done relatively cheap, and is reliable and consistent.

GOOD POST PJ. Thanks for the advice.

 

[piper907]

Hey Alaska...
Enlighten me a bit... I run these pods in the mountains... in pow... all day long. BUT, I bought the sled with them on and I still have the stock airbox. The sled seems to run pretty good, I have sealed up all the holes in the filters and run prefilters. my temp sensor is ziptied between the filters.

??? do you think I need to disable the DPM??? why or why not?
I really like NOT having a huge @ss airbox under the hood, but what mods have you done to it that work well... If I decide to re-install it?

 

[PJ-Hunter]

Your pictures look like its deto. Is it just a coincidence that the two sleds the went down are a 827 and 830? When I ran dpm with filters I used the k&n filters that angled 15 degrees and drilled a hole in the end for the sensor.

I don't run dpm now because I think you can get the sled to run better without it. I now use kickass filters with prefilters. I also have a set of the spi filters with nos nozzles in them for other occasions.

Deto and running lean. I don't know what caused the deto. It couldn't have been fuel, cuz I filled with fresh before I even started the sled. The only thing we can think of is the pipe/can setup I had was too tight and it caused the deto. Which BRP does state right in their Race manual that the wrong exhaust setup can cause deto. RKT said to run the stock pipe/can, but I didn't have one so I stayed with the CPI. Kelsey thinks that the filters were the straw that broke the camels back and BOOM, no more piston. The piston with most of the damage was the mag side.

The damage was nobodies fault but my own for trying to mess with too much chit!

 

[hymark860]

Your right about the pipe. Ive ran into that very problem a few years ago.
Fresh fuel doesn't always mean its good. Couldve had water in it. The extra timing in the mid or hight water temps can cause deto in the right conditions.

ive ran pods on the 860 for a few years with no problems. The dpm isnt worth having on a mod motor.

Hope you get r back up soon.

 

[ridehard1212]

WHY RUN PODS? U DONT GET MORE AIR? THE AIR U DO GET IS WARM!! i RUN IN THE MOUNTAINS IN 4 FEET OF SNOW WITH NO BOGGING ISSUES AND I RUN A 888 WITH DPM. i JUST THINK PODS ARE NOT WORTH WHILE.