[twowheeladdict]

Have you all noticed how much knowledge skeptic purports to have about the mean streak, yet all his posts are just to cut down someone else's post, instead of offering helpful advise to the person asking the question?

Way to go skeptic.

 

[skeptic]

Have you all noticed how much knowledge skeptic purports to have about the mean streak, yet all his posts are just to cut down someone else's post, instead of offering helpful advise to the person asking the question?

Way to go skeptic.

Interesting considering that your post offers no "helpful advise to the person asking the question" and was clearly only posted to "cut down someone else's post".

Sounds like more hate and discontent being stirred up by a hypocrite troll that doesn't own a Mean Streak. Way to go... :slap:

 

[madperson]

Have you all noticed how much knowledge skeptic purports to have about the mean streak, yet all his posts are just to cut down someone else's post, instead of offering helpful advise to the person asking the question?

Way to go skeptic.

Yep another troll the Mods need to get rid of in my humble opinion.

 

[twowheeladdict]

Interesting considering that your post offers no "helpful advise to the person asking the question" and was clearly only posted to "cut down someone else's post".

Sounds like more hate and discontent being stirred up by a hypocrite troll that doesn't own a Mean Streak. Way to go... :slap:

Correction. No longer owns a mean streak. Still waiting for you to share your vast knowledge by answering questions instead of finding fault with people's posts. Can't bring yourself to actually be helpful?

 

[Ponkster45]

Well I put the PC111 back on - as bolt on said in his post "an engine will run forever a little rich, but pre-detonate/destroy pistons running lean"

I gave the throttle body a clean and the air cleaner was cleaned and re oiled and its pulling like a train.

Thanks for all your help and input , sorry we couldn't discuss this without the mud slinging - I for one will be putting the past behind me, unblocking people who were ignored in the past and seeing if we can get on without having a "pop" at each other.

We are all bikers (or people that like motorcycles) at the end of the day - we are not going to agree all the time but lets see if we can try to take a breath before we hit the post button.

 

[bolt-on-bandito]

Yes, if the bikes had 02 sensors it could be totally different, like potentially closed loop instead of the open loop system our Mean Streaks have. Unfortunately our ECUs are primitive, open loop, and smart as a rock.

Adding resistance to trick the air temp sensor we've been doing forever. It fell from favor when we got PCII/PCIIIs and could richen and lean selectively instead of just adding fuel everywhere so your already too rich full throttle A/F ratios are even richer when you add a resistor.

The other problem adding a resistor is it's not a consistent "correction" over varied air temps, You need temp compensated resistance like "booster plugs" supply to get consistency.

The reason there's no good answer to the "do I need a PCIII (or similar)?" question is because the TPS settings our bikes were delivered with vary widely. It's why some bikes would run nicely on regular while others would detonate even on premium. With the common "big three" some bikes run ok with no mapping changes, some don't, many owners wouldn't know the difference anyway.

Hmmm, maybe i have been using open loop and closed loop in the opposite meaning. I thought open loop meant there was an 02 sensor and and intake air sensor (or throttle position sensor) and that the two sensors were always trying to balance each other out.....as if the intake sensor shows X amount of air/temp, then the exhaust sensor would determine that enrichment/redudction of fuel.... i thought closed loop meant only 1 sensor was doing the adjustment, with no feedback from any other sensor. That's the terminology with cars. But anyway, I think the points remain the same. I for one picked up my bike last summer for $2K, so there is no way i am going to put a $300-400 fuel mapping mod on my bike. It idles, runs, and has great WOT characteristics.

I guess overall i am really happy with how the bike performs, and am no longer the "every last HP possible" kinda guy. I can see how the EFI is primitive, but remember, the factory isn't out to produce razor's edge perfromance. they want reliable, long lasting, solid power. I am good with primitive....i still like carburetors, despite being born in '81!

 

[skeptic]

I am good with primitive....i still like carburetors, despite being born in '81!

I'm older and I also still like carbs. I'd prefer a carb over the (primitive) EFI our Mean Streaks have. Even with a PCIII it's limitations are frustrating. On the other hand, my BMW has a very smart Bosch BMSK (ECU) that's been reflashed. It runs better than any carb setup could.

I have the old serial port PCIII on my Mean Streak. I've been tempted to get the newer USB version that has the accelerator pump function. It could improve "tip in" with lean cruise mixtures but as you've found, it runs "good enough" so I haven't.

 

[carryall]

Great post Skeptic. I like carbs for the simple fact they are easy to diagnose air/fuel problems but, for performance and general reliability, F.I. has it's benefits for sure.

 

[bolt-on-bandito]

I'm older and I also still like carbs. I'd prefer a carb over the (primitive) EFI our Mean Streaks have. Even with a PCIII it's limitations are frustrating. On the other hand, my BMW has a very smart Bosch BMSK (ECU) that's been reflashed. It runs better than any carb setup could.

I have the old serial port PCIII on my Mean Streak. I've been tempted to get the newer USB version that has the accelerator pump function. It could improve "tip in" with lean cruise mixtures but as you've found, it runs "good enough" so I haven't.

First gen, crappy OEM EFI lead me to convert my 1994 mustang to a carburetor. the '87-'93 "Fox body" mustangs had the same 5.0 engines and were (under-rated) at 225HP.....but were closer to 250. the next gen gained about 500lbs. a shallow hood line, which meant a very restrictive intake, and a bunch of emissions controls, and were rated at 215hp!!!

Can you imagine the absolute crap storm if new Vette or Stang came out with LESS hp then the current model? That was the 90's

Anyway, Ford switched to the 4.6, OHC modular motors, which are super expensive, and less durable, BUT have a far superior EFI system. I was faced with a custom stand alone EFI system, a custom tune, or adding a cam position sensor and other sensors, and trying to retrofit a factory EFI system. Instead i swapped the intake, ran fuel lines, a fuel press reg, and slapped a carb on it. Best decision i ever made! Long story short, the meanie EFI is kinda lame, and i am not impressed with the modules, so I plan to just leave it alone and enjoy driving.

In my experience the major advantage of EFI is MPG and easier tuning abilities. Carbs are easy to tune ONCE you know what you are doing, but the learning curve is steep, and it's becoming a lost art. New efi tuners can be adjusted from your phone. I am not interested in spending $300 on a module to improve my MPG by +3.....that would take a lot of fill ups to offset.

$.02

 

[jarmoke]

Yep, different kind of opinions. Anyway, at least in Europe bikes are tuned up so that they will pass pollution tests. It is not tuned how engineers have planned the engine. My personal experiences are that PC does make a huge difference when tuned up in dyno by professional, and if I ever change my bike the new one will be tuned up in dyno for sure - as well as our car's TDI engine is tuned up in dyno (tuning without turbo in cars is not so efficient). I have noticed a huge difference both in cars and bikes, and I have allways told the dyno company that I'm not interested about max HP, but I'm interested of nice and steady torque curves... And every time they have succeed, I'm really happy about results with all bikes and cars which have been dynoed...

Edit: When talking about cars, I'm talking about European models... I do not have any understandin of American cars

 

[bolt-on-bandito]

.

Edit: When talking about cars, I'm talking about European models... I do not have any understandin of American cars

American cars are awesome. that's all you need to know!

 

[Bonequark]

Yep, every post of yours shows how true this is.

When you run a Meanie that looks like this, you should take the banana out of your *** and humbly admit failure. You trashed a good looking machine!

 

[skeptic]

When you run a Meanie that looks like this, you should take the banana out of your *** and humbly admit failure. You trashed a good looking machine!
View attachment 106138

Pic came from here: http://www.riderforums.com/general-mean-streak/88742-let-s-see-those-bags.html if anyone's interested. I'm not sure why any rational person would think it's relevant here. :confuse: It's certainly nothing I find embarrassing...

 

[Ponkster45]

So here I am replying to a thread I started two years ago and since then the forum seems to have died on its arse with most of the big hitters moving on - so Im not sure if anyone is even going to read this , but here goes anyway:

My use of the meanie has taken a strange turn - no longer the power cruiser with me trying to squeeze as much HP and max savage acceleration , now it is attached to a sidecar and now smooth and steady is the order of the day with my top speed around 65 to 70 mph occasionally and the normal speed around 50mph. Yesterday the bike died and was not getting fuel and it turned out that the PC111 had upped and died - it looks like the bike was telling me it didnt need the fuel computer anymore , so I have gone full circle and will be "Running Zeros" after all !

 

[lee]

That's a new twist for sure. Looks kind of fun, though.