slp single set up question

[skidooboy]

can anyone clarify if you can run the slp single, y pipe and can set on an 09 m8 at
0-3000' on regular 87 pump gas without a controler??? i have saw adds that say yes you can, and i have saw adds that say this pipe is for above 3000' ONLY.

all the following questions are for low elevation ONLY!

can you run this pipe without a controler with stock air box and intake?

can you run this set up with slp air box without a controler?

can you run this set up with bdx air box without a controler?

can you run this set up with timbersled intake without a controler?

did a search on here, some say yes, some say no. want to make the right decision. dont want a burn down. i know i will be safe at altitude out west but, we only go maybe one time a year. so the majority of the riding will be 0-2500'.

thank you for the help in advance. ski

 

[TheBreeze]

yes.

You can run at low elevation on 91 octane with stock air box and slp airbox. I do not know about the BDX or Timbersled.

 

[Graveyarder]

I run the SLP intake and full exhaust on my 07 M8 with no controller on 91 octane. I run 2,500 to 9,000 ft in the areas we ride. According to SLP you need to run 91 octane. Best bet would be to get ahold of them for a straight answer for the elevations you want to ride. If I had this set-up on a newer M8 I think I would run the controller since the 07 runs richer than the later sleds. Hope this helps you some.

 

[JasonAK]

I ran the Slp pipe kit at 0-3000ft. on a 2007 m8 with a BDX Intake, It was lean, on the edge of burn down. If you run just the pipe kit you will most likley be fine, however I would still check the plugs and wash. Every sled is different and you may still require a fuel box.

Jason

 

[Headrush]

I spoke with the SLP reps over the phone and again at Haydays. Their message was consistent, you have to run 91 octane at any elevation and if you run any other intake, besides theirs, you need a fuel controller. You can run the setup at any elevation, but your fuel pressure needs to be at or above a certain PSI.

 

[CatMan88]

What about the m1000 3,000 up? with a bdx intake? All i have heard is u need a box but thought i would ask.

 

[ouellette]

I was gonna start my own thread but decided just to add on to this one. I just ordered a BDX air intake and the SLP pipe setup. Just wondering if I needed a controller for it. I keep getting mixed reviews. I have an 09 M8 and will be doing all my riding anywhere from 4000 to 9000ft. Any help would be greatly appreciated. Thanks.

 

[bigcat_ak]

What about the m1000 3,000 up? with a bdx intake? All i have heard is u need a box but thought i would ask.

I would run the box. I run 2500-6000 with pipe kit and BDX intake. Run 90 octane and the box. Runs stong and safe. Better safe than seized!!!

 

[iluv2fly]

I was gonna start my own thread but decided just to add on to this one. I just ordered a BDX air intake and the SLP pipe setup. Just wondering if I needed a controller for it. I keep getting mixed reviews. I have an 09 M8 and will be doing all my riding anywhere from 4000 to 9000ft. Any help would be greatly appreciated. Thanks.

I talked with slp on this last year when I installed there full pipe, I only live 30 minutes from them. They told me if you stick with there intake and pipe you do not need a fuel controller, however, if you go with an aftermarket intake that eliminates the stock setup than a fuel box is required. There may be some that get away with the aftermarket intake and pipe but slp is going to cover there hide becuase they know some will be to lean.

 

[Cowboy1]

Talked to Brent at Arctic Edge and he recommends running the Boondoocker box with the set up your talking about.

 

[arcticman31]

SLP Single

I have an 07 and a buddy of mine has an 09 both with the slp setup and ride at 9 to 12,000 feet........No Controller and absolutly no problems

 

[YooperScott]

Straight from SLP's website....

"This pipe is compatible with the stock ECU on 2007-09 models at all elevations. It is also compatible with the stock ECU when used in combination with SLP High Flow™ Intake Kit (part #14-299) and V-Force 3 Reed Valves (part #22-103). Other modifications including but not limited to: head modifications, increased timing, cylinder porting or intake modifications other than the SLP High Flow™ Intake Kit in addition to the pipe may require the use of an EFI control box.

Fuel Requirement: Minimum 91 octane pump fuel "

That is what SLP says, decide to believe it or not. Two questions I like to ask myself in this case: First for those that claim it's "on the edge" how exactly do they know this and do I blindly believe them just because they said so? Second is the person telling you that you need something else standing to make money from you? If yes then I take that into account on my decision. I am going to add the pipe and run in the UP of Michigan and hope SLP is right. The pumps have 92 or 93 there so in theory that adds a touch of safety to it. The fact that SLP claims you can run their intake and reeds also either means there is still some margin left in their opinion and/or those mods don't actually help. I tend to think the later but that is just my opinion.

 

[JasonAK]

[QUOTE

That is what SLP says, decide to believe it or not. Two questions I like to ask myself in this case: First for those that claim it's "on the edge" how exactly do they know this and do I blindly believe them just because they said so? Second is the person telling you that you need something else standing to make money from you? If yes then I take that into account on my decision. I am going to add the pipe and run in the UP of Michigan and hope SLP is right. The pumps have 92 or 93 there so in theory that adds a touch of safety to it. The fact that SLP claims you can run their intake and reeds also either means there is still some margin left in their opinion and/or those mods don't actually help. I tend to think the later but that is just my opinion.[/QUOTE]

I only found out that mine was on the edge of lean burndown because I pulled the top end to put in new pistons and rings. When I did so I found that there was little to no wash on the piston and cylinder. The pto side pistion and ring was tost and scared at left side of exhast port (cylinder just barley made it).

Jason

 

[iluv2fly]

I have an 07 and a buddy of mine has an 09 both with the slp setup and ride at 9 to 12,000 feet........No Controller and absolutly no problems

You can run the pipe with no fuel controller but the question is can you run the pipe and BDX intake together with no controller. Only looking at piston wash, egt's, or an 02 sensor will be able to tell you that.

 

[YooperScott]

I only found out that mine was on the edge of lean burndown because I pulled the top end to put in new pistons and rings. When I did so I found that there was little to no wash on the piston and cylinder. The pto side pistion and ring was tost and scared at left side of exhast port (cylinder just barley made it).

Jason

How many miles were on the engine? How hard do you run it? What sort of octane and quality of gas do you use? How do you know the pipe made the difference and without the pipe the same might have happened? What other mods were on the sled? Please realize I am not trying to be a smart a$$ here, I am asking this sincerely and certainly willing to learn something if possible.

 

[JasonAK]

How many miles were on the engine? How hard do you run it? What sort of octane and quality of gas do you use? How do you know the pipe made the difference and without the pipe the same might have happened? What other mods were on the sled? Please realize I am not trying to be a smart a$$ here, I am asking this sincerely and certainly willing to learn something if possible.

I run it hard and I put alot of miles on the sled over 1600 just last season with the following set up. Now understand that I ran this set up for 2 seasons. I ran it with a boondocker box and added fuel, I had good wash and plug color. At the end of last season we were doing some ridding at 3500ft and I 000 the boonbox to see how it would run. After checking the wash I could see that it was running leaner. I did not know how lean untill I pulled the top end off.



Slp pipe kit, BDX Intake, Boyseen rage cage,

 

[YooperScott]

Thanks.

Actually this leads me to a fundamental question here. Why is it that altitude even has a factor in safety or not? I realize ~3% loss of power per 1000' altitude but the assumption here is that the computer is compensating for altitude (perhaps this is the flaw in my logic???) . Now I could see if the added power from the pipe down low maxed the stock fuel system and created a need for bigger pumps, injectors, pressure, or something like that but if a box can fix it then why isn't the computer taking care of this or else causing the same edging on lean condition regardless of altitude? Next question then would become, what sensor(s) are being used to do this compensation for altitude and can they be tricked with resistors or something into "thinking" you are say 1000-2000 feet lower than actual thus causing the stock system to add more fuel and somewhat remove the need for a box?

 

[thump426er]

I can put a comment on the computer side of the question but that is it. And could be way off base but here goes.

Keep in mind a sled injection system is like an old school car injection system; that is they have a select number of maps and parameters that fit for each map. ie: it isnt changing constantly to adjust for every pressure/temp/load etc change with a constantly changing map structure as a new vehicle would today. It basically reads the outside parameters and if they fall within "x" then, use map 1, if parameter value "y", then map 2. As I understand there may only be 5 or 6 different maps the computer can pull from to match with the parameters it picks up.

So essentially the computer is going to give a map structure that might be perfect for your given day/temp/alt etc or it might be a bit of a compromise on any given day.

And, dont forget as stated in Anchorman - 60% of the time,,, it works everytime.

And better safe than sorry, run the box, more tailoring anyway so you cant go wrong cause you may add things later anyway.

 

[YooperScott]

If that's true then I would think there is a way to trick it down if say at 1500' you can get it to run at the 0' map. Or perhaps there is a 0-3000' map, 3000'-6000' map, etc.... But then that leads me back to why is it we only seem to be concerned with the lower altitudes and why wouldn't we have a "problem" with others too?

My fear, other than piling on the cost, of doing a box like the PCIII is if SLP doesn't already have a setup for just the pipe (which they probably don't since they say you don't need it) then how do you tune it? I had programmable fuel injection on my HEAVILY modified '94 Z28 back in the later 90's and it was a pain. Yeah it sounds all good and cool to say you have total control but unless you are starting from a map that is pretty close just getting the thing to run ok can be a challenge. I was able to use a dyno that could be loaded and wideband o2's and sit at all levels to adjust until good but that is no small deal. I am guessing this sled stuff is peanuts in comparison but it's still a road I would rather not go down, however naturally I want the "+14 hp and -8 lb". What options are out there, if any, other than BDX's $200 adjustable fuel pressure regulator. That is the easy way to add fuel a bit across the board, just raise the pressure a couple psi. $200 for a fuel pressure regulator falls into my too pricey for what you get catefory. Any way to "modify" the stock regulator for a little more pressure?

 

[skidooboy]

as far as why it works at higher elevations is simple fuel curve physics. you need less fuel at higher altitudes. so if the m8's are fatter on the parameters accross the board, the higher you go with the sled, the less fuel you need, the more cushion you have. as you drop lower to the 0-3000 elevations you are making more power, and even though the parameter might be fatter, you still might not have enough cushion to run safely without a controler from what slp states.

i still dont have enough info to talk myself into running this without a box. but as yooper has said, the cost for what you get is slowing the purchase. i am really leaning (no pun intended) toward just running it stock, +14 hp and -8 pounds or not. 550 for the pipe, then the air intake, then the fuel box or regulator your getting close to the 1000 mark, and i still wont know if it makes power or is safe at 0-3000.

maybe i should just pay the 495 to rk tek and get his 15+ hp power upgrade. want reliable, safe, and EASY power gain. dont want to be dickin with a fuel box all day every day to get the thing to run.

please for everyones sake, lets keep this about the m8's only. please start another thread for the 1000 then, we all know what each other is talking about. ski