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Thread: STIC jetting thread:

  1. #861

    Default Re: STIC jetting thread:

    Quote Originally Posted by STIC Fuel Systems View Post
    Dear Bowser:
    No! send directly to STIC Headquarters; P.O. Box 1119; Eagle River, Wisconsin 54521. If you ship by UPS or FEDX; send it to street address: "3730" Hemlock Lane. You must send a complete block and tube together; we have the STIC JD Jetting kits in stock; there is no charge for the exchange. Call at 1-715-479-7822 or email at vortex@sticduel.us
    thanks George, will get it off and in the post. Should have done it ages ago
    2018 KTM 300 XC
    2018 KTM 500 EXC
    2018 KTM 300 EXC TPI 6 Days - Gone
    2015 Husky FE 501 - Gone
    2014 Husky FE 350 - Gone
    2010 CRF250R - Gone
    2009 Husaberg FE450 - Gone

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  3. #862

    Default Re: STIC jetting thread:

    Quote Originally Posted by bowser View Post
    George or JD, my SIC still has the old metering block and needle that came with it. Fuel economy is terrible, how do I go about getting the new block and red hot needle/jetting setup? send direct to JD?
    What sort of range are you calling as terrible? As a guide, 80kms should be a minimum for general trailriding and 50-60 km's for racing offroad.

  4. #863

    Default Re: STIC jetting thread:

    Quote Originally Posted by cluffie View Post
    What sort of range are you calling as terrible? As a guide, 80kms should be a minimum for general trailriding and 50-60 km's for racing offroad.
    last ride was probably 75km's max, open fire trails
    2018 KTM 300 XC
    2018 KTM 500 EXC
    2018 KTM 300 EXC TPI 6 Days - Gone
    2015 Husky FE 501 - Gone
    2014 Husky FE 350 - Gone
    2010 CRF250R - Gone
    2009 Husaberg FE450 - Gone

  5. #864

    Default Re: STIC jetting thread:

    Quote Originally Posted by bowser View Post
    the last ride was probably 75km's max, open fire trails
    ,
    The new 2.870mm (aka .113A) and the new 2.900mm (aka .114A) will make a dramatic increase in performance with a mileage improvement; providing you ride with some restraint. It is tempting to get on the throttle with the enticement of improved performance when using the STIC system. The new tubes have an additional emulsion hole to improve the low-end cleanliness. Overall, you will see an improvement in mileage and performance; it is recommended that you use the "New" STIC JD jetting kit, it comes with two needles that are STIC specific; the Red is .1072" at the top straight section and the Blue is .1062" on the top; they both have the smaller tip at .055." We stock the new "A" series tubes and the STIC JD jetting kits. If you have the older tubes; if you send the block or the complete carburetor to us we will give you the new tube (no-charge); these are exchange only, you must send the complete block with the tube to STIC Headquarters.

  6. #865

    Default Re: STIC jetting thread:

    Quote Originally Posted by STIC Fuel Systems View Post
    ,
    The new 2.870mm (aka .113A) and the new 2.900mm (aka .114A) will make a dramatic increase in performance with a mileage improvement; providing you ride with some restraint. It is tempting to get on the throttle with the enticement of improved performance when using the STIC system. The new tubes have an additional emulsion hole to improve the low-end cleanliness. Overall, you will see an improvement in mileage and performance; it is recommended that you use the "New" STIC JD jetting kit, it comes with two needles that are STIC specific; the Red is .1072" at the top straight section and the Blue is .1062" on the top; they both have the smaller tip at .055." We stock the new "A" series tubes and the STIC JD jetting kits. If you have the older tubes; if you send the block or the complete carburetor to us we will give you the new tube (no-charge); these are exchange only, you must send the complete block with the tube to STIC Headquarters.
    thanks George, mrs posted the carby over to you today. I'll pm you wit the details etc.
    Wayne
    2018 KTM 300 XC
    2018 KTM 500 EXC
    2018 KTM 300 EXC TPI 6 Days - Gone
    2015 Husky FE 501 - Gone
    2014 Husky FE 350 - Gone
    2010 CRF250R - Gone
    2009 Husaberg FE450 - Gone

  7. #866

    Default Re: STIC jetting thread:

    February 12, 2020 STIC SSST™

    ¶ 1 OK, here is the answer to the larger main jets when using the STIC metering block. There is a tipping point in the jet orifice size; meaning there is a point where the smaller jet will initially flow more fuel at a certain suction (aka vacuum; thus, richer at lower rpm) and it will saturate faster (reaching its maximum flow rate) before going lean. As the jet orifice size is increased beyond the tipping point; the jet will require greater suction to flow more fuel and will initially be leaner at the lower rpms. This is the same analogy as pulling soda through a small 1/4-inch straw; it is relatively easy; however, when the straw is increased to one inch; it will require substantially more suction to move fluid through the larger straw. If the suction (aka induction suction, vacuum) is the same as that exerted on the smaller straw; then the flow through the larger straw will be less (aka cleaner and leaner). Other things that affect the richness and leanness; is the float height. The higher the float level the higher the fuel level in the main jet tube (or orifice passage); thus, requiring less suction to pull the fuel from the wet level to the carburetor bore. A lower float level requires more suction to pull the fuel from the wet level to the carburetor bore; thus, an initial leanness. In principle, the float level can be used as a final tuning aid. Bottom line a very large jet can be utilized to make the carburetor cleaner in the lower rpms

    ¶ 2 This brings up the formula P (pressure)= area ÷ force; this equates to the larger jet orifice has fewer pounds per square inch acting on the larger jet bore surface area. Thus, when the orifice reaches a certain area (size) it will flow less fuel at the same pressure (in this case the prevailing atmospheric pressure). Calculated flows through an orifice are called the “Reynolds number” (aka calculated flow rate). Reynolds calculations are based on precise measurements; including the density of medium; angles, orifice diameter; pressure applied, temperatures, etc.; it goes on and on. In summary, Reynolds number (flow rates) calculations in a laboratory will give you a ballpark estimate as to what the jet orifice size should be. When you enter the fluctuating dynamics of the real world of an Internal Combustion Engine (ICE) running; where the environment and the rider also affect the engine’s performance; Reynolds numbers become difficult to predict (incalculable).

    ¶ 3 Here are some of the factors the STIC interprets; pressure on one side of the jet (float bowl); suction applied to the other side (induction suction, aka differential pressure drop). Here is where the STIC shines; it is designed to create a calculated artificial pressure drop ahead of the liquid-based on its ability to “auto-select” the higher prevailing pressures. There are several STIC features that allow the STIC tube and block to lift fuel from the larger orifice progressively; the STIC is emulsifying the fuel with air thus making the fuel mixture lighter. From this point, the STIC entrains the oxidizer into a series of orifices that cause the emulsified mixtures to again merge and to be vectored into the direction of the central flow’s longitudinal axis. Again, the oxidizer molecules are forced to mix (merge) with the fuel molecules as they are forced through a series of adiabatic expansion passages wherein the air and fuel mixtures are condensed into a cooler more vaporous mixture. In summary, for those that have experienced the STIC acceleration feature in all gears; they will attest to this STIC characteristic of instant acceleration and how smooth it is; it knows what you and the engine wants.

    ¶ 4 The STIC is designed to calculate where it is and to make calculations all the time; this is called SSST; STIC Solid State thinking (processing). There is an understated revelation in the STIC home page; look to the top left of the web page and you will see the term: SSST.

    ¶ 5 When the STIC is activated; by the engine starting; it receives continuous real-time information from the engine; its surroundings, and rider input. Although I revealed this on the webpage several years ago; it went unnoticed. The reason I did not explain the SSST it in the initial revelation of the STIC; no one would have believed me. The patent issued recently, the key was designing the STIC to instantly auto select from numerous variable conditions; and to instantly make calculated flows based on input; now you know; it appears to be true.
    Last edited by STIC Fuel Systems; 02-13-2020 at 03:44 PM.

  8. #867

    Default Re: STIC jetting thread:

    Here is a brief History of the STIC:

    How great is the JD Jetting Kit for the STIC metering block? The KTM, Yamaha, Honda 125’s — all the way to the 500’s; they are ripping to the moon with the combo.

    Here is a great YouTube site; search verbiage — “stic metering block test” — this brings up hundreds of STIC videos. You should post on this site; this would be a great site for you to expose your working knowledge. There is nothing more thrilling for those that don’t ride to be in the hands of the rider with a Go-Pro that is narrating the ride.

    Here is a good example of TOKYO Off-Road videos.

    https://www.youtube.com/channel/UCp3...z5HXL_7L9fes6A

    He has thousands of viewers on his postings, and he answers his viewers. Click on Videos (play all). Here is a video on his tear-down after using the STIC metering block for 150 hours.

    https://www.youtube.com/watch?v=8hFqWWUh1xI&t=10s

    In the beginning, there was the basic carburetor that was thought to have evolved to its highest level thought possible. Who knew there would an old man that worked on carburetors all his life and recently revealed there would be even greater discoveries that will knock your hat in the creek.

    https://www.youtube.com/watch?v=Bv17qRAL1pI&t=3s​

    The relationship with Mark from TOKYO started when Harris Performance (Derek) sent him a STIC metering block to test; from there he was impressed, contacted STIC and the rest is history. He has tested the STIC against the Smart Carburetor, Lectron, and the TPI; the STIC outperforms all the competition. Originally, the STIC was developed for hot motocross; as you can see Mark rides the hills in Japan and they wanted the best of everything; torque, finesse, and low-speed instant acceleration in all of the ranges. With input from all over the world; STIC was able to meet its demand by improving the product without changing the concept. The first issue; there were no needles available to make it clean on the bottom; this led to making dimensional changes to accommodate the needles from James at JD Jetting that we currently use, they are highly recommended. The needles from JD Jetting are STIC specific. That’s the short story.

  9. #868

    Default Re: STIC jetting thread:

    Quote Originally Posted by STIC Fuel Systems View Post
    This typo in post #859 had me convinced my email server was broken!

    vortex@sticfuel.us worked.

    Might be helpful to add it and your phone # to your signature.

  10. #869

    Default Re: STIC jetting thread:

    Once upon a time: caution this is not a fairy tale

    Dick, Jane, and Spot (dog) like HOT motocross and Hot Carburetion. Jane says, “Dick, Is the new STIC system better than fuel injection?” Dick replies and exclaims “oh yes.” Jane and Spot like fast two strokes; they are really impressed with the Keihin with STIC insert. Jane says to Spot; “WOW, see Dick run; Dick is very fast”. Jane says, “Spot, see the STIC insert work; Dick is very fast on his STIC Husqvarna equipped Keihin carburetor.” Jane and Spot (Spot barks) are happy that John is wicked fast on his Husqvarna 300. Jane and Spot think Dick's bike is on Steroids [STIC]. To see Dick go very fast click on this video below to see Dick accelerate; he is very happy and very fast on his STIC Rapid Transit System. Jane and Spot are happy that Dick is not on steroids; that it is a Keihin carburetor that is on STIC steroids.

    For details see the following video with Dick (aka John) on his hot Husqvarna 300.

    https://www.youtube.com/watch?v=B57ufZuLetI&t=12s
    Last edited by STIC Fuel Systems; 02-14-2020 at 07:24 PM.

  11. #870

    Default Re: STIC jetting thread:

    Quote Originally Posted by 380EXCQLD View Post
    This typo in post #859 had me convinced my email server was broken!

    vortex@sticfuel.us worked.

    It might be helpful to add it and your phone # to your signature.
    Thanks for noticing the typo; vortex@sticfuel.us ----- phone 715-479-7822,

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