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The reason reeds CAN be a limiting HP factor with EFI is because I ran 14 mm larger throttle bodies with perfect 1185-1200 EGT's.
On a flow bench, the reeds can be blocking what the throttle bodies could flow with the butterflies open.. Less flow equals less power on an engine.
This was a few many years before V Force reeds were available which may or may not have flowed more than stock cages with say Boyeson petals. The reeds couldn't flow more than about 10 mm larger
On a true piston port engine, there was no issue because you're simply limited to port timing.. I have no idea how big a throttle body you could run because nothing larger was available.
Do you even know how they build the pressure to inject? Its not with fuel line pressure.
E tecs injection pressure is 500 Lbs. FAR FAR Over the fuel line pressure.
You need to learn how it works.
Test at 2,000 or more RPM.
Monitor the pressure gauge during test mode.
Fuel pressure should rise to approximately
303 kPa (44 PSI).
Fuel pressure should decrease and stabilize to ap-
proximately 210 kPa (30 PSI).
Fuel pressure should remain stable throughout remaining tests.
Just because you say that snowmobiles 2 strokes run cleaner than comparable HP 4 stroke snowmobiles doesn't mean squat to the people at CARB when considering legislation on dirtbikes. Two totally different classifications of vehicles.
Post a link to these awards that 2 stroke snowmobiles have won from CARB
There are plenty dirtbikes that have green stickers. I own two of them.
The Shop
You're weaving more than Vince Friese on a 12 pack.
That's just bullshit. What have snowmobiles and outboard engines done to keep 2 stroke motorcycles legal in California. They sure didn't do anything to help new 2 stroke pwc's from being banned.
Maybe re-read my post.
I think it will saw the economy, once you see one you will be very open to creative financing.
Then you went on to say that they have received awards from CARB.
So show me these awards. You can't because there aren't any. Explain how snowmobiles have kept two stroke motorcycles from being banned in California. You can't because there isn't any proof.
I used the banning of two stroke pwc's in California as an example of how your theory of snowmobiles saving the two stroke in California is complete bs
You need to read closer before posting.
I said 2 strokes, because CARB wanted to end it all until the boat and sled people stepped in with real emissions testing they could verify.
They even wanted closed course racing bikes stopped. They even had talks about banning leaded fuel in off road closed course, and in NHRA drag racing.
AND that was even before they banned fuel containing MTBE.
For example, this is my exact post. AND I DID NOT say CARB Awarded an award.
I said 2 strokes have won awards. Which they have many times. through MTU and S.A.E. the Society of Automotive Engineers.
3/17/2017 12:26 PM
Without them, 2 strokes would have been banned completely in California. Think about that.
They proved 2 stroke engines can and do burn cleaner than comparable HP 4 strokes.
Read the reports CARB did. 2 strokes have won some awards on this clean burn technology also..
That said maybe someday dirt bikes will get green stickers also.
Please provide a link that shows snowmobile manufacturers had something to do with convincing CARB to continue to allow two strokes in California. Like I said before if they did it sure didn't help the pwc's or as you called them "lake lice"
Please provide a link to the reports CARB did about this subject.
Fuel containing MTBE is not banned in California. VP Fuels uses it to oxygenate some of their products.
The OP's question was about 2 stroke motorcycle EFI. Not snowmobiles saving the two stroke. This is a motorcycle forum.
it's not as simple as just plugging it in, lol. Make sure you know what your buying
I don't know about off road use.
Bummer, glad I don't live there
https://www.arb.ca.gov/enf/advs/advs397.pdf
Pit Row
Most everything here is ethanol, ie U4E and other Ethanol fuels because they arent going to risk fines
Here is another.
MS109E is designed for the same applications as Motorsport 109, offering the same substantial power increases and protection against detonation. Oxygenated with ethanol, MS109E can be used in all 50 states, including those that restrict the use of MTBE in fuels.
California Motor vehicles used, on or off-road, for work, pleasure, or recreation, i.e. cars, trucks, 4X4’s, motorcycles, dirt bikes, ATV’s, dune buggies, sand rails, and other vehicles are not racing vehicles as defined. It is illegal to sell, offer for sale, supply, and offer for supply racing gasoline that is not certified as California RFG for use in non-racing motor vehicles in California.
I've been buying a 5 gal pail of VP race fuel every 2 weeks long before that CARB notice came out. Never have I been asked for my VIN number, my address or where I was racing. The 1st time you buy it and then once a year after you're asked for your drivers license and they have you sign a form that says you know that the fuel is intended for racing vehicles on closed course tracks. After they have your signed form on file all they ask you when you purchase fuel is "Do we have your form on file?" Answer yes and give them your money and you're done.
Once again skidaddle you try to sway opinion your way by posting untruths or changing the intent of the conversation.
We're talking about fuel with MTBE not MS109E with ethanol. Post anything about ethanol fuels you want but it doesn't mean anything because we're talking about a completely different subject.
Like most things, you're wrong about the leaf blower ban. It was outlawed in several California cities because of noise not because it was a two stroke. I'm surprised that you didn't claim that snowmobiles saved them.
I'm still waiting for the CARB reports that show the snowmobile manufacturers saved the two stroke in California like you claim.
Amsoil was making Octane boost, the REAL stuff with Nickel Carbonyl.. OSHA and the EPA came in and said no way. It all helps for a complete burn, it doesn't do whole bunch for performance in small quantities like U4. I still think VP is worth the money from a quality fuel standpoint.
You know, I used to play with Mercury as a kid in the lap. Guess what, I'm fine. Well, some of you don't think so
California should break off and house all the liberal shitheads. Leave the rest of us alone
Same deal with lead paint. As a kid I used to lick lead painted walls and chew on my #2 lead pencils all the time.
gsxr6 wrote: 150 psi for direct injection. Lol try over 2000 psi. Has to overcome the cylinder pressure for the fuel to be able to inject. Charge cooling galore! Hence why turbo four strokes with di can get away with 87 octane.
To be honest, I got a pretty good laugh out if it full well knowing the current DI Etec actually runs less line pressure than their old SDI setup as well which was less than a garden hose too.
I admitted I was wrong that the 500 EFI twin came before the EFI RXL triple.
That machine wasnt available here except by special order, but regardless, it did in fact have EFI from the OEM 1 year prior.
Post a reply to: What exactly is an EFi smoker gonna give us?