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Put wife's Spyder RT/AC on the Dyno (long story)

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After adding Cowtown’s RT Performance Package to Barbwire’s 2010 RT/AC (Ram Air, Green Air Filter, Iridium IX Plugs and Two Brothers Exhaust) I wanted to make sure that the fuel/air mixture was within limits without having to add any peripheral device. Note: I was assured by Len and Dan at Cowtown that all was good and there was not an issue and nothing else would need to be added. I called Lamont and asked him if he knew of any body that could Dyno the Spyder and he didn’t. I got out the phone book and found FASTECH Motorsports in Louisville, TN., just up the road, ½ mile, from Alcoa Good Times. Unknown at the time but this would prove to be very helpful. Mark the owner of FASTECH had never put a Spyder on his in ground Dyno but said he could so I made the appointment. Not being knowledgeable of the complexity of the computer system on the Spyder we put the Spyder on the Dyno got her all secured and started the Dyno run, remember I said I had no knowledge of the computer system, well it wasn’t long before the learning started with the help of others. Being as the front wheels were not turning the Spyder threw the following codes, ABS Fault, Check Engine Fault and went into Limp Mode. I called Lamont told him what I was doing he told me I have to remove the Wheel Speed Sensor, I asked him about the codes and he said I would need to take it to a dealer to get them cleared. Remember Alcoa Good Times is just down the road, yahoo! With the Wheel Speed Sensor disconnected we rode the Spyder to the dealer. I spoke with Shawn the service manager and told him what I was doing and asked if he could clear the codes he said he could and went to check with his tech as to how long it would be, came back and told me it would be about 20 min before he could get to it. Note: Alcoa Good Times is the dealer we go to for service and Shawn is the new service manager and he and his staff will and have gone beyond what you would typically expect from a dealer. The Tech cleared the codes and we were on our way back to FASTECH. Well we didn’t get but 1/8[SUP]th[/SUP] of a mile from Alcoa when Barbwire signaled me that there was a problem; remember the speed sensor was disconnected when the codes were re-set & I forgot to give this info to the Tech. Now we had more codes. I told my wife to turn around and go back to Alcoa and I would go get the bolt that holds the speed sensor in. Back at Alcoa they put the speed sensor back in cleared the codes again and back to FASTECH. I called Lamont again and he told me the error of my ways and told me the correct set-up procedure to get the Dyno done without throwing codes. Now for the Dyno results, 95.2 HP, Fuel/Air mix range 14.5 @ 2800 rpm and 12.8 @ 7600 rpm. These results serve as a good snap shot of the state of tune for the Spyder and supports Cowtown’s claim that no other peripheral device would be needed.

Again Lamont thank you for all the assistance, Shawn at Alcoa thank you for taking care of me, both times. If you are in the area stop by and visit with the staff at Alcoa Good Times. BTW you hear so much about dealers not giving priority to out of town riders, well Shawn told me that if at all possible they will move an out of town rider up front if they have the means to get them back on the road. Len and Dan at Cowtown thank you for knowing about the product you sell and providing the correct information as to the characteristics of the Performance Package you have put together. Most dealers just want to sell a product and have no real knowledge of the specifics. It should be noted that Barbwire was opposed to the whole Dyno thing, but she let me do it anyway. Her quote was she felt like she took her prize racehorse out and rode him to death ‘cuz she doesn’t like to hear her Spyder rev’d that high.
 

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Wont the numbers change with the RAM air mod? it will force more air in when running to the engine I assume...
 
Dyno charts, After adding Cowtown’s RT Performance Package to Barbwire’s 2010 RT/AC (Ram Air, Green Air Filter, Iridium IX Plugs and Two Brothers Exhaust)
 

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"After adding Cowtown’s RT Performance Package to Barbwire’s 2010 RT/AC (Ram Air, Green Air Filter, Iridium IX Plugs and Two Brothers Exhaust) I wanted to make sure that the fuel/air mixture was within limits without having to add any peripheral device. Note: I was assured by Len and Dan at Cowtown that all was good and there was not an issue and nothing else would need to be added."

Sure would like to hear more about the Performance pkg details in terms of air/fuel tuning. Along with other RT owners, I am using the TBR pipe & Green Filter but had to finally add a TBR juice box to adjust the air/fuel mixture to avoid the constant backfiring/popping on deceleration, plus surging at low speeds.
There must be something else involved here to avoid these issues. Has the ECM programming been changed by BRP to compensate for the higher air flow? I am not an engineer or a race tuner but my experience with opening the exhaust and intake on the RT has not been without problems. Maybe Len can help us... sure would sell a bunch of those Performance packages!
 
I had concerns when I was talking with Len about his RT Performance Package. I was not interested in putting any type of tuner on Barbwire’s RT and had a bigger concern with the sound of the new exhaust. Len assured me that I would not have to put any type of tuner on the Spyder and was sure that the exhaust note would not be too loud, as that was a concern. Len and Dan both assured me that there would be no issue with backfiring/popping on deceleration. Even though I was still a little skeptical we made an appointment with Dan at Cowtown to have the work done at the front end of out vacation and to share in the Fall ride with Cowtown down to Branson. Upon completion of the stated modifications we found Len and Dan’s statements as to the performance of the RT Performance Package to be spot on. Barbwire has put over 2K miles on her Spyder since the work and has not experienced any negative performance issues. Drivability has improved as well as an improvement in fuel mileage 3 to 5 miles per gal depending on driving conditions, speed, and wind. With that said I still had a concern as to the fuel/air mixture being within limits. I wanted to make sure that with the modification we did not create a lean air mix condition. Drivability and performance did not indicate an issue I just wanted to make sure, that was the reason for the Dyno You might want to give Len a call and discuss your issues with him; he and his service department team seem to have a handle on what they are doing.
 
Dyno charts, After adding Cowtown’s RT Performance Package to Barbwire’s 2010 RT/AC (Ram Air, Green Air Filter, Iridium IX Plugs and Two Brothers Exhaust)

nice ! thanks for sharing. the HP and torque looks pretty linear which is nice to see.

you can see where it goes from closed to open loop feedback in the AF Ratio. The closed loop area is the shaded area in the attached pic below:
untitled.JPG
What I was referring to is if the computer can not compensate totally for the additional air coming into the engine when riding at higher speeds it will lean out the AF ratio some. I am guessing that it wont make much difference to the AF Ratio and may add negligible slightly to the peak HP ...

The problem for 2011 and now 2012 RTs is Dynojet doesnt make an addon that I know of yet for your Spyders. Dynojet also makes the newer 2Bros Juice Box for them. but as was mentioned by others there is no Juice box and no Dynojet PC V for the 2011 and 2012 models yet as they changed the wiring connectors.... The Dynojet makes the closed loop area richer to 13.6:1 AF Ratio from the stock is 14.7:1. I am not sure what the OPEN loop area is after installing a Power Commander or JB Pro.
 
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Thanks for all of the information! I guess that I'm going to have to start working on the Missus again; I'll try the "Better fuel economy" tactic this time!:D
 
It would be interesting to see what effect just the air filter and exhaust had, without the ram air, for those with the RTS or LTD versions that can't add the ram air without losing their foglights.
 
Not to worry, Len is working on and has the solution for those that have the RTS or Limited so you too can have Ram Air. Not sure when he will have the kit available, maybe late Nov.
 
It would be interesting to see what effect just the air filter and exhaust had, without the ram air, for those with the RTS or LTD versions that can't add the ram air without losing their foglights.

my guess is you are seeing the effect wo ram air unless they could put a blower pushing 50 mph wind into the front air ram ports
 
my guess is you are seeing the effect wo ram air unless they could put a blower pushing 50 mph wind into the front air ram ports
That would be my guess, too, but I'd like to see the numbers. I think the cool intake air from the Ram air intake is probably a benefit.
 
RT-Performance

Hi gang, yes we are working hard to make all this work and come out right. We now have a kit for RT-S's and have installed several 5 of these with great results. We are working on the system to make it easy and able to ship and sell. As of right now we are only installing them pesonally to ensure proper instalation and be able to monitor the spyders. I want this to be an easy bolt on system that could be both installed by dealer or owner with step by step instuctions and pictures as well as dvd. The one thing is for sure it take all the steps to make it right you can do a few things but leave out one thing and the whole system does not work in its entirety. We will to be offer stage 1 kits and stage 2, and stage 3...... 1 being just the motor preformnace, stage 2 to include Elka's, And stage 3 to be our dash and gauge package included with graphics, And so on. Thanks for all your support we want to do our best to put out quality and working kits. We have some great folks, working with us to make all this right. should have all this ready to be able to ship soon. But can do installs now.
 
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