Speedwerx ECU Re-mapping for Arctic Cat 9000 / Yamaha Sidewinder 998 Turbo

If you are serious about getting the maximum performance out of your 998 turbo machine, our ECU re-mapping is the place to start.  Our new mapping set-up offers the most control to all of the hidden features in the stock ECU and allows us to produce the most power and the best throttle response and acceleration.

You must send your ECU box to us for re-mapping! Please include a note with your return address and order number. The return shipping cost for the service of your choice will be added when purchasing online.

Ship To:

• Speedwerx, Inc.
  
• 20195 Greystone Avenue
  
• Forest Lake, MN 55025

Speedwerx ECU Maps Tested at DynoTech Research!

Many of you have been anxiously awaiting more information on our Arctic Cat 9000 / Yamaha SideWinder 998 Turbo ECU mapping, and after a considerable amount of dyno and field testing we have some details to share on the three Pump Gas / Trail maps that will be available this season-

• RPI-9000-1    Stage 1    Stock Exh.    (220.8 hp*)
• RPI-9000-2    Stage 2    91 octane     (254.2 hp*)
• RPI-9000-3    Stage 3    91/110 Blend     (271.6 hp*)

A Knock Light is a standard feature on all of our maps to give you a little more peace of mind and a safety margin should you get some low quality fuel. Extensive work went into the OEM knock detection feature to make this work better in high boost applications so you will have the safest and most reliable system available to give you a little more peace of mind and a safety margin should you get some low quality fuel. It's simply incorporated into the mapping to appear on factory digital display for a true plug and play installation without the need for external lights or wiring scroll down to see a quick vid of it in action.

These maps were developed for Speedwerx by Precision EFI and we have the exclusive rights to market them to consumers, dealers, and performance shops. A Flash Tool for dealers or shops to install the maps in-house on a pay per license arrangement will also be available. Serious tuners can also purchase the Multi-Map Bundle + Dash Upgrade to have the ability to switch maps using the stock digital dash display at any time. Any dealers interested in getting setup to flash ECU’s should contact Doug at 651-982-6020 or dtoepper@speedwerx.com.

• RPI-9000-FT    Flash Tool    
• RPI-9000-MB   Multi-Map Bundle + Dash Upgrade  

*Please Note: the horsepower ratings as stated are in hot and humid August air- the Stage 3 will make around 280hp in cool, dry winter air.*
Billy Howard from our Eastern Distributor Howard’s Inc. brought his machine to DynoTech Research where they ran the three maps in addition to the stock baseline and our Stage 1 muffler that does not require an ECU remap- here’s Jim’s write-up with the results and some notes and tech info.

2017 Arctic Cat Thundercat turbo, tested with Precision EFI Stage Tuning and Speedwerx Mufflers
Billy Howard of Howard's Inc Kubota, SkiDoo and Arctic Cat (and Speedwerx distributor) in Coudersport PA brought this low mile stock 2017 Arctic Cat Thundercat turbo to DTR to test Speedwerx mufflers and the anxiously awaited Precision EFI pump gas ECU reflashes. Speedwerx would like to provide this technology to its distributors, dealers and customers, and are working on a marketing plan with Precision EFI.
Sebastien Guay, owner of Precision EFI, spent his early years first doing the Advanced Certification program at EFI University in San Diego, then spent several years in New Zealand working with, and finalizing the development of the VI-Pec standalone EFI system (the preferred standalone used by Hypersports, BMC, D&D, Speedwerx on their X-Games winning supercharged 800 Cat twostroke, and many others). In 2009, Sebastien came back to Canada with fully developed VI-Pecs to market and opened Precision EFI at the Autodrome Saint Eustache racing facility in Quebec, north of Montreal. The facility is set up with a complete fabrication shop, all wheel drive chassis dyno and a fully instrumented engine dyno for building and tuning high end EFI race cars that are run at the Autodrome. They also have a snowmobile chassis fixture for instrumented crankshaft dyno testing like we use at DTR that they use for snowmobile VI-Pec and factory ECU tuning. Today, an important part of Precision EFI's business is marketing/ tuning VI-Pec standalone ECUs in North America and cracking and retuning automotive and powersports ECUs.

These three reflashes were developed first on Precision EFI's fully instrumented engine dyno, then field tested last winter in Canada on Thundercat/ Sidewinder beta test trail sleds. Factory detonation protection is surely adequate for normally aspirated operation, but marginal for boosted operation on pump gas, hence the need for extensive field testing prior to release. Precision EFI has reconfigured the digital dash display to include a knock light that will warn the rider of any possible detonation when operating on occasionally inevitable low octane fuel or in abusive, harsh conditions (scroll to the bottom to see a demonstration video of the knock light). They also have developed an electronic box to be used by distributors/ dealers for installing these totally encrypted reflashes over the internet on a pay per license arrangement.
Billy had with him two Speedwerx stainless quiet mufflers—one 2.25" ID and the other a higher flowing and just slightly louder but easily “trailable” 2.5" ID.  We tested the fuel in the tank with our Zeltex 101C octane/ ethanol % tester, and it was 92.2 R+M/2 octane with 3.3% ethanol.

At the beginning of the test session, the air was hot and humid. The Thundercat EFI will adjust fuel flow to compensate for changes in temperature and barometric pressure, but can't measure humidity with its speed density system. So the water in the air displaces O2 with no change in fuel flow, resulting in slightly richer mixture and reduced HP. Note that the stock fuel curve leans out mixture as revs climb beyond peak HP RPM. Based up on their own winter air dyno testing, Sebastien had expected HP to be closer to 280, and plans to return after optimal cold weather has arrived in WNY. The DTR refrigerated intake air system can provide 1000 cubic feet of dry winter air in August, but our experience using that system on our first preproduction Sidewinder showed the stock intake air thermocouple is too slow to react to the sudden 60F drop in intake air temperature during the 10 second transient dyno test —causing leaner-than normal A/F ratio. We had the same experience with the plastic coated SkiDoo Etec intake air temperature sensors, and now use one with plastic carefully removed exposing the metal element when testing with winter air in summertime. With that, the BUDS shows intake air temperature drops as quickly as our rapid response custom SuperFlow intake air temp sensor.

Stock baseline in 75.8% humidity, .75 in hg vapor pressure air

EngSpd   STPPwr   STPTrq   BSFA_B   FulA_B  LamAF1 ElpsTm   BoostP FulPrA
RPM        CHp        Clb-ft       lb/hph      lbs/hr     Ratio      Secnds     psig     psig
6500    158.7    128.3    0.465    66.6    12.45    0.57      7.9    52.1
6600    159.7    127.1    0.470    67.6    12.36    1.04      8.0    52.2
6700    160.5    125.8    0.470    68.0    12.26    1.40      8.0    52.2
6800    161.4    124.7    0.467    68.0    12.16    1.75      8.1    52.2
6900    162.6    123.8    0.465    68.1    12.10    2.10      8.1    52.2
7000    163.8    122.9    0.460    67.8    12.06    2.46      8.1    52.2
7100    165.1    122.1    0.458    68.1    12.04    2.80      8.2    52.3
7200    166.7    121.6    0.460    69.1    12.03    3.09      8.4    52.5
7300    169.2    121.8    0.466    71.1    12.05    3.40      8.7    52.9
7400    173.6    123.2    0.474    74.1    12.09    3.79      9.2    53.3
7500    178.9    125.3    0.476    76.6    12.12    4.14      9.7    53.7
7600    183.5    126.8    0.474    78.3    12.09    4.49      9.8    53.8
7700    186.8    127.4    0.479    80.5    12.01    4.88      9.9    53.8
7800    188.8    127.1    0.482    81.9    11.94    5.18      9.9    53.8
7900    190.2    126.4    0.488    83.4    11.87    5.53    10.0    53.9
8000    191.5    125.7    0.492    84.7    11.79    5.88    10.0    53.9
8100    192.9    125.1    0.493    85.5    11.74    6.22    10.0    53.9
8200    194.0    124.3    0.495    86.3    11.74    6.57    10.1    53.9
8300    195.3    123.6    0.493    86.6    11.77    6.93    10.1    54.0
8400    196.9    123.1    0.489    86.5    11.84    7.18    10.2    54.0
8500    198.2    122.4    0.485    86.3    12.00    7.57    10.2    54.1
8600    200.1    122.2    0.481    86.4    12.03    7.91    10.2    54.1
8700    201.7    121.8    0.481    87.2    12.01    8.23    10.2    54.1
8800    202.2    120.7    0.486    88.2    12.01    8.61    10.2    54.0
8900    201.5    118.9    0.488    88.3    11.97    8.97    10.2    54.1
9000    199.3    116.3    0.486    86.8    12.07    9.31    10.4    54.2
9100    195.9    113.1    0.476    83.5    12.61    9.68    10.5    54.4
9200    189.3    108.1    0.459    77.8    13.54  10.19    10.7    54.6

Leaving the stock ECU in place, we installed the Speedwerx 2.25" muffler. The reduced backpressure allowed a bit more boost pressure that the ECU compensated for-- delivering additional fuel flow. Also, note the Elapsed Time of the first two tests which is virtually identical--critical in ensuring perfect repeatability during transient testing with any dyno. The SuperFlow 902 water brake absorber with new style PID controller gives us this identical rate of engine/ absorber rotor acceleration.

Stock ECU, Speedwerx Stage 1 Muffler

EngSpd   STPPwr   STPTrq   BSFA_B   FulA_B  LamAF1 ElpsTm   BoostP FulPrA
RPM        CHp        Clb-ft       lb/hph      lbs/hr     Ratio      Secnds     psig     psig
6500    163.8    132.3    0.458    67.6    12.52    0.59      8.6    52.7
6600    164.8    131.1    0.457    67.9    12.40    1.01      8.6    52.7
6700    165.5    129.7    0.459    68.5    12.28    1.41      8.6    52.7
6800    166.7    128.7    0.452    67.9    12.22    1.78      8.6    52.8
6900    168.0    127.9    0.446    67.4    12.17    2.12      8.6    52.8
7000    169.1    126.9    0.447    68.0    12.11    2.49      8.7    52.8
7100    170.4    126.1    0.447    68.6    12.07    2.82      8.8    52.9
7200    172.2    125.6    0.455    70.6    12.07    3.11      9.1    53.1
7300    175.5    126.3    0.470    74.3    12.09    3.42      9.7    53.7
7400    181.0    128.5    0.481    78.4    12.10    3.74    10.4    54.3
7500    188.4    132.0    0.481    81.6    12.11    4.10    11.0    54.9
7600    195.4    135.0    0.475    83.5    12.10    4.46    11.4    55.3
7700    200.9    137.0    0.470    85.0    12.02    4.83    11.7    55.6
7800    204.5    137.7    0.470    86.6    11.91    5.18    11.7    55.6
7900    206.0    137.0    0.476    88.3    11.78    5.53    11.7    55.5
8000    206.8    135.8    0.486    90.5    11.66    5.93    11.7    55.5
8100    207.9    134.8    0.491    91.8    11.59    6.24    11.7    55.5
8200    208.4    133.5    0.496    93.0    11.52    6.56    11.8    55.4
8300    209.3    132.4    0.502    94.6    11.50    6.89    11.8    55.5
8400    210.8    131.8    0.507    96.0    11.54    7.22    11.9    55.5
8500    212.6    131.4    0.506    96.7    11.60    7.57    12.0    55.6
8600    214.5    131.0    0.503    96.9    11.63    7.89    12.0    55.6
8700    215.8    130.3    0.502    97.3    11.63    8.27    12.0    55.6
8800    216.7    129.3    0.501    97.6    11.61    8.63    12.0    55.7
8900    216.1    127.5    0.509    98.7    11.56    9.00    12.1    55.8
9000    214.1    124.9    0.515    98.9    11.62    9.34    12.2    55.9
9100    211.9    122.3    0.509    96.8    11.91    9.65    12.3    56.0
9200    205.3    117.2    0.493    90.8    12.68  10.19    12.2    56.1

Reinstalling the stock muffler, Sebastien installed a "Stage 1" reflashed ECU. This gave us an extra 1.5 psi of boost, and a nearly 20hp increase over stock with even safer A/F ratio than stock.

Precision EFI Stage 1 Tune, Stock Muffler

EngSpd  STPPwr   STPTrq    BSFA_B   FulA_B  LamAF1  LM1Air   Boost FulPrA
RPM       CHp         Clb-ft        lb/hph     lbs/hr     Ratio       SCFM     psig    psig
6500    169.0    136.5    0.442    68.7    12.57    203      8.8    53.7
6600    169.3    134.8    0.442    68.9    12.40    201      8.7    53.7
6700    169.4    132.8    0.446    69.5    12.25    200      8.7    53.7
6800    170.2    131.5    0.447    70.0    12.18    201      8.7    53.7
6900    170.8    130.0    0.447    70.1    12.11    200      8.7    53.7
7000    171.8    128.9    0.448    70.8    12.08    201      8.8    53.7
7100    173.6    128.4    0.453    72.3    12.07    205      9.0    53.9
7200    176.1    128.5    0.459    74.3    12.04    211      9.5    54.4
7300    181.3    130.5    0.461    76.7    12.06    218    10.3    55.1
7400    188.4    133.7    0.460    79.6    12.08    227    10.9    55.6
7500    195.8    137.1    0.460    82.8    12.08    235    11.3    56.1
7600    201.8    139.4    0.461    85.4    12.06    243    11.6    56.4
7700    206.3    140.7    0.463    87.7    11.99    248    11.8    56.6
7800    209.0    140.7    0.465    89.3    11.87    250    11.8    56.5
7900    210.3    139.8    0.469    90.6    11.74    251    11.8    56.4
8000    210.8    138.4    0.475    91.9    11.58    251    11.8    56.4
8100    211.6    137.2    0.478    92.8    11.53    252    11.8    56.4
8200    212.1    135.8    0.487    94.7    11.51    257    11.9    56.5
8300    213.6    135.2    0.491    96.1    11.52    261    11.9    56.6
8400    215.4    134.7    0.491    97.0    11.55    264    12.0    56.6
8500    217.4    134.3    0.496    98.8    11.64    271    12.1    56.7
8600    219.5    134.0    0.499  100.3    11.65    275    12.1    56.7
8700    220.4    133.0    0.500  101.0    11.60    276    12.1    56.6
8800    220.8    131.8    0.497  100.5    11.57    274    12.1    56.7
8900    220.3    130.0    0.494    99.6    11.55    271    12.1    56.7
9000    219.5    128.1    0.490    98.4    11.59    269    12.2    56.7
9100    216.8    125.1    0.482    95.7    11.90    268    12.2    56.8
9200    214.2    122.3    0.471    92.2    12.37    269    12.3    56.9

Next, a larger but still quiet 2.5" ID Speedwerx stainless muffler was installed with an ECU with Precision EFI Stage II tune. This brought boost up to 14psi, and with still safer-than-stock A/F ratio generated well over 250hp. Note that the Precision tuning eliminates the gradual leaning of mixture as revs climb toward the 9200+ rev limit— something critical when running "out of gear" on the lake and having revs climb toward the rev limiter. Remember the factory deto protection may be adequate at stock HP levels but may lack the extreme, rapid reaction (fuel enrichening and timing retard) necessary to protect the engine properly from detonation at 250+ HP.

Precision EFI Stage 2 Tune, Speedwerx Stage 2 Muffler

EngSpd  STPPwr   STPTrq    BSFA_B   FulA_B  LamAF1  LM1Air   Boost FulPrA
RPM       CHp         Clb-ft        lb/hph     lbs/hr     Ratio       SCFM     psig    psig
6500    175.2    141.6    0.462      74.4    12.55    220      9.3    54.3
6600    177.2    141.0    0.469      76.4    12.42    223      9.4    54.3
6700    178.7    140.1    0.476      78.2    12.30    226      9.5    54.3
6800    180.6    139.5    0.480      79.7    12.22    229      9.6    54.5
6900    183.4    139.6    0.485      81.7    12.18    234    10.0    54.8
7000    187.8    140.9    0.484      83.6    12.12    239    10.4    55.2
7100    192.7    142.5    0.484      85.8    12.03    243    10.9    55.6
7200    197.8    144.3    0.490      89.0    11.93    250    11.4    56.1
7300    203.9    146.7    0.496      92.9    11.86    259    12.2    56.7
7400    212.1    150.5    0.497      96.9    11.84    270    12.9    57.4
7500    220.7    154.5    0.490      99.4    11.82    277    13.5    57.9
7600    227.3    157.1    0.485    101.3    11.80    281    13.7    58.1
7700    231.5    157.9    0.483    102.8    11.77    285    13.9    58.3
7800    234.7    158.0    0.485    104.6    11.73    289    14.0    58.4
7900    237.8    158.1    0.486    106.2    11.71    293    14.2    58.5
8000    240.6    158.0    0.487    107.7    11.66    296    14.2    58.5
8100    242.7    157.4    0.493    109.9    11.58    300    14.2    58.5
8200    244.7    156.7    0.496    111.5    11.52    303    14.2    58.5
8300    246.4    155.9    0.497    112.3    11.49    304    14.1    58.4
8400    247.9    155.0    0.497    113.1    11.52    307    14.0    58.2
8500    249.8    154.3    0.499    114.4    11.52    311    14.0    58.2
8600    251.2    153.4    0.504    116.1    11.48    314    13.9    58.1
8700    252.5    152.5    0.509    117.9    11.46    319    13.9    58.1
8800    253.7    151.4    0.511    118.9    11.45    321    13.9    58.0
8900    254.2    150.0    0.515    119.8    11.43    323    14.0    58.0
9000    253.0    147.7    0.526    121.9    11.40    328    14.0    58.0
9100    250.9    144.8    0.536    123.0    11.36    330    13.8    57.9
9200    244.1    139.3    0.542    120.9    11.35    324    13.4    57.5

Finally, here's the 2.5" Speedwerx muffler with Precision EFI's "Stage III" tune. This adds another two psi of boost and nearly 70hp more than stock on 92.2 octane pump gas! Note the conservative A/F ratio all the way to the rev limiter. And also note the gradual application of boost as revs climb from lower RPM. This boost curve is designed for maximum midrange acceleration at WOT without risking encountering deto that might occur from creating excessive torque (high operating combustion pressure) at low RPM. Remember--detonation is a time-dependant phenomenon so it's wise to keep WOT tuning moderate at low revs, and increase the boost as revs climb. The time-dependant issue explains why we might be able to safely make more HP on pump gas with the high revving, smaller bore triple. Most wise tuners always felt the 250 was the pump gas limit on the Suzuki turbo bigger bore low revving two cylinder (many who have tried to operate the boosted Suzuki twin on pump gas at higher HP levels had to resort in installing heavy head studs to keep quietly detonating engines from lifting the heads and spewing coolant). But the lower torque, higher revving Yamaha triple with less timing advance surely explains its greater pump gas HP output with no signs of detonation.

Precision EFI Stage 3 Tune, Speedwerx Stage 2 Muffler

EngSpd  STPPwr   STPTrq    BSFA_B   FulA_B  LamAF1  LM1Air   Boost FulPrA
RPM       CHp         Clb-ft        lb/hph     lbs/hr     Ratio       SCFM     psig    psig
6500    184.4    149.0    0.504    80.9    11.92      227      9.2    54.1
6600    183.3    145.9    0.508    82.2    11.79      228      9.3    54.1
6700    183.8    144.1    0.513    83.5    11.68      230      9.4    54.2
6800    185.3    143.1    0.519    85.4    11.59      233      9.6    54.3
6900    187.8    142.9    0.521    87.0    11.56      237      9.9    54.6
7000    191.5    143.7    0.523    89.0    11.52      242    10.3    55.0
7100    196.7    145.5    0.525    91.7    11.42      247    10.9    55.5
7200    202.0    147.4    0.533    95.8    11.36      256    11.6    56.1
7300    208.2    149.8    0.539    100.7    11.33    269    12.5    57.0
7400    216.5    153.6    0.536    104.3    11.34    279    13.3    57.7
7500    226.3    158.4    0.531    107.9    11.39    290    14.0    58.3
7600    235.6    162.8    0.524    110.6    11.44    298    14.6    58.8
7700    243.0    165.7    0.514    112.1    11.47    303    15.0    59.3
7800    248.7    167.5    0.511    114.2    11.47    309    15.3    59.5
7900    252.8    168.1    0.514    116.8    11.44    315    15.6    59.7
8000    256.1    168.1    0.512    118.4    11.42    319    15.8    59.9
8100    259.1    168.0    0.513    120.1    11.36    322    15.9    60.0
8200    261.6    167.5    0.520    123.1    11.29    328    16.0    60.1
8300    263.8    166.9    0.524    125.1    11.29    333    16.1    60.1
8400    266.3    166.5    0.523    125.9    11.35    337    16.1    60.1
8500    268.4    165.8    0.521    126.5    11.36    339    16.1    60.0
8600    270.0    164.9    0.519    127.0    11.33    339    16.0    59.9
8700    270.9    163.5    0.520    128.0    11.29    341    16.0    59.8
8800    271.6    162.1    0.525    129.5    11.26    344    16.0    59.7
8900    271.0    159.9    0.527    130.2    11.29    347    15.9    59.7
9000    270.0    157.5    0.533    130.8    11.33    350    15.9    59.7
9100    267.7    154.5    0.538    131.3    11.37    353    15.9    59.7
9200    261.5    149.3    0.540    130.9    11.42    353    15.8    59.7

Update 9/22/17- Since we posted information on our new Arctic Cat 9000 / Yamaha SideWinder 998 Turbo ECU Mapping developed by Precision EFI, one of the most asked about features is the Knock Light since it is something no one else is currently offering for these machines. We are proud to be the first in the industry to offer a Knock Light as a standard feature on all maps at no extra cost. Extensive work went into the OEM knock detection feature to make this work better in high boost applications so you will have the safest and most reliable system available to give you a little more peace of mind and a safety margin should you get some low quality fuel. It's simply incorporated into the mapping to appear on factory digital display for a true plug and play installation without the need for external lights or wiring. Check out this video to see it in action...



10/5/17- Billy Howard from Speedwerx eastern distributor Howard's Inc has been using his own Arctic Cat XF9000 as a rolling test bed on the snow, grass, and on the asphalt like you see here. His full-bodied machine with the basic asphalt setup and the stock engine with only our Stage 3 ECU Flash and Stage 2 Lightweight Muffler (271.6hp @16lbs. boost on pump gas as previously shown at DynoTech Research) runs 9.50 @136mph in the 1/4 mile. In the recent AmSnow Shootout, he ran 5.32 @128mph in the 1/8th mile, good enough for the #5 slot on OSDRA's Crazy 8 all-time quickest in the Pro Mod class. Not too shabby for a pump gas trail sled- keep up the great work Billy!



1/18/18- Flash Tools and Multi-Map Bundle + Dash Upgrade now available from Speedwerx and Precision EFI! In addition to the Stage 1-3 ECU Flashes with the integrated Knock Light as we have shown you previously, more advanced features are available right in the factory gauge cluster including multi-map capability, adjustable launch control, and adjustable traction control. The dash upgrade also enables a boost gauge in the stock cluster as well. Also coming is an air/fuel ratio display in the stock cluster with the addition of a wideband O2 sensor, and a stand-alone dash upgrade so the boost and AFR gauges will work with any flash on the market is coming as well. These features can be installed by sending your ECU and Gauge Cluster to Speedwerx, or any dealer who purchases the Flash Tool will be able to perform these upgrades on-site to make the process quick and easy with minimal down time!

2018 XF 9000 Goes 125MPH on the Hillbilly Highway!