low elevation turbo

[snowman80]

I was wondering if any of you are running turbos at low elevation? I would like to try it and think it is very possible to do. I live at 1500 feet of elevation and I know I couldn't push much boost but at least I would be able to run it. I really just want the turbo for out west and I was thinking about just getting two sleds but I would like to try running a turbo at low elevation.

 

[Ryanlilly]

You could always run a low compression head, that should help. I know there are flat landers that run turbos. Im sure they will chime in.

 

[Sunvang]

Om going to run Silber turbo kit, with a power addiction 11.1 head at around 5-7psi of boost, 400-1000meters over sea level. Done with mounting and test startes it, tuning and testing will start soon

 

[skotertoken]

I ran a 2011 Assault rmk with silber turbo and Power Addiction 11.1head, pump gas and at 1000ft. No worry running 8psi, did try 10psi but then my clutching where to light. But if you will be running those heads you will have to make a custom maping, on the other hand you will put out more power than those that run the stock head.

 

[Super B]

I run a silber turbo on my D8 at low elevation and out west. For around home, I use Silbers low boost actuator at 3-4 PSI with about 10% race gas as added insurance. I have ran 7-8 psi in MN with a 50% mix of race and pump gas.

 

[allblowdup]

I ran a bd rg d7 kit for two years at 10-12 lbs on c14 at 1500 ft. No problems until 14 psi then it would lift the head and burn the orings. Went like hell though. This year I am going to try and run 10 psi on a bd intercooled pro on av gas. With there timing mudule of course.

 

[m1kflyingtiger]

What does their timing module do as far as helping with low elevation?

 

[TurboMatt]

What does their timing module do as far as helping with low elevation?

It backs off the timing a couple degrees, less timing = usually less detonation

 

[m1kflyingtiger]

Is that a bd only thing or will it work with any kit? And would it require changes to the fueling, or just allow for more boost (or lower octane fuel) at a low elevation?

 

[piper]

I have been running Silber kit on my 2011 Pro Assault..

From 0-1000 meters..

14 psi on 100LL fuel.

here is a clip from me on 40 meters level

http://www.youtube.com/watch?v=g3x-rpBYp6I&feature=youtu.be

400 meters

http://www.youtube.com/watch?NR=1&v=D6rIbscySxg

 

[TurboMatt]

I have been running Silber kit on my 2011 Pro Assault..

From 0-1000 meters..

14 psi on 100LL fuel.

here is a clip from me on 40 meters level

http://www.youtube.com/watch?v=g3x-rpBYp6I&feature=youtu.be

400 meters

http://www.youtube.com/watch?NR=1&v=D6rIbscySxg

Impressive.
Are you running the stock head or something different? Any other mods that are allowing you to run that much boost on 100ll at sealevel?

 

[RedBeard]

I run a silber turbo on my D8 at low elevation and out west. For around home, I use Silbers low boost actuator at 3-4 PSI with about 10% race gas as added insurance. I have ran 7-8 psi in MN with a 50% mix of race and pump gas.

Any chance you'd share some of your clutching with a fellow flatlander from MN? I've got D-8 Switch, putting a used BD turbo on, and the clutching I got with it is for a RMK at altitude.

 

[skotertoken]

Matt. He's running Power Addiction 11.1 heads, he should be able to run 10-12psi on pump. No need for 100ll.

 

[piper]

The Power add turbo head will only work opp to 8-9 psi..

The design on Power add will not work og mid range on this sea level on higher pressure then 7 psi because of high temps

The head im yousing for more pressure is a home made head, reworked from the 13.1 head polaris changed out.

On this sled i was yousing the silber helix and springs, 78g weight.

On my 2009 Swback dragon with Boondocker race turbo im yousing 48str, hard spring in driven, hard drive spring, 76g for mountain driving, i have been driving at the most 18 psi + 40 HK boss noss on this sled for water drag with C14 fuel
http://bildr.no/view/981267

 

[powerfuldodge]

I just ordered a Silber kit for 0-3000ft. I was told to run a low compression head with comes in the kit, and I can run 91oct. fuel. I just wanted a reliable kit that i can run all day long. With a little extra jam running 4-5 PSI..

 

[CMX]

I heard last spring that BD had a new timing key for the 2011 pro which would allow high boost at low elevation.

 

[piper]

I got 2 timing module to day, 1 for 2009 800 and 1 for 2011/2012.

-3 degrees.

will try it out on snow when it het here, but dyno first

 

[Super B]

Any chance you'd share some of your clutching with a fellow flatlander from MN? I've got D-8 Switch, putting a used BD turbo on, and the clutching I got with it is for a RMK at altitude.

I am running Silber's clutch kit with Team Rooster weights. As far as what springs & helix I have, I do not remember off the top of my head.

 

[francois]

When turbo last season, riding anywhere between 0 to 2000 ish feet. 100LL up to 13psi no det on both sleds (09 800 dragon and 07 700 dragon). In my opinion, if you are running around 7psi at low elev pure 100LL is over doing it. Loosing on throttle response... I haven't been very lucky so far tho with a bunch of problems...clutching is the biggest, tried a couple things from guys on this site but it was not working too good for me, the best so far is Silber's clutch kit but I still need to fine tune it. Looks like a straight 48 or 50 helix is the way to go for turbos so I might give it a try this year. Other problems I have had is a major bog when you want to go from idle to WOT. It takes a good 1 or 2 seconds to clear off, and im not talking about turbo lag im really talking about a fuel/air problem. Can become really tricky when you're in a tight spot!

Other problem I have had is controlling the boost. Because it's so cold here and so low in altitude I have a tendancy to over boost and on the 700 I can not bring the psi's down!! That might be a problem with the wastegate tho.

Went thru a set of reed valve and they are a pain in the *** to change...

For me the intercooler is useless, create a lag that I do not need especially because like I said it is really cold in Quebec, Canada and I normally want to ride at around 8 psi.

One a/f ratio gauge went to crap

and other than that everything went well lol...

Im by myself here so I have to do all the testing...nobody has turbos around here so I learned a LOT last year!

Be ready to spend several hours, testing, fixing, thinking about your sled lol. If you have a friend that has a turbo make him your best friend now!

Good luck

 

[powerfuldodge]

I just want to confirm with guys who have turbo kits on there Pros who ride at low elevation (0-3000ft) that they are running 4-5 PSI and are running pump fuel. I ordered the Silber kit and was told pump gas is all I needed but was told by someone today that pump gas and turbo will not work at our elevation. I will have to mix the fuel 50/50 which I don't not want to do. I was told this from the guy who sets up and installs turbos for areo charger in Edmonton. He just told me that I will not be able to run pump fuel with any boost at my elevation but I will find that out. But I was told by Silber that pump fuel is all I need. I dont want to spend $5500 on I kit that I have to run race fuel ,I usually put on 2000miles a winter ,fuel cost would be a little expensive if I have to do a 50/50 mix. Just looking for some input.

Thanks
Ian