first ride on dragon silber kit. When i left the parking lot and check everything over it all looked good when i got on the throttle the boost went to 10psi so i stopped and rechecked the controller, it was turned all the way down and still had 10 pounds of boost i turned the boost knob about 1 1/2 turns up and it was still at 10 pounds. i looked at the directions and it was all connected right. could this possibly be a fuel controller problem? i only want to run 7-8 on pump fuel. thanks
no boost controller operation on silber kit
- Thread starter SPARK PLUG
- Start date
so you have the low boost wastegate actuator? mine only goes down to about 8 and when i turned it up i had to turn the knob quite a few times before it finally started going up. other than that the only thing i could think of is you got your lines mixed up from your boost controller
Im not sure what waste gate i have. when i ordered the kit i told justin i wanted to run 7-8 pounds of boost. the connection in correct per installation insructions and the controller is turned all the way down. i do have a call into Justin but im sure he's busy testing
Mine was running around 10 lbs too until I got a couple good rides on it. It's almost like it needed to be broke in or something. Now I can get it down to about 8. It's like the spring in the actuator freed up a bit with a couple heat cycles in it.
As far as you not getting any increase in boost with turning your knob out check and see if you have some pre load on your waste gate actuator rod. You should have to pull the rod slightly to get it on the wastegate pin. If not you need to loosen the jam nut and turn it in some to shorten the rod.
If that doesn't fix it then look for a leak in your charge tube clamps and your intake boots.
As far as you not getting any increase in boost with turning your knob out check and see if you have some pre load on your waste gate actuator rod. You should have to pull the rod slightly to get it on the wastegate pin. If not you need to loosen the jam nut and turn it in some to shorten the rod.
If that doesn't fix it then look for a leak in your charge tube clamps and your intake boots.
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francois
Member
I had the same problem on my td8 on the first couple of rides but my reason was not the same.
Me and Justin thougth about it for a looooong time trying to thin about all the possibilities. Looked at the tension in the wastegate, it was ok, dismount everything to make sure nothing was blocking the wastegate and that it was working properly, look for leaks, my last choice was to drew the hole of the waste gate bigger but I didnt have to do it in the end which Im pretty happy with!
Keep in mind that it was minus 10 cielsius on the test ride so Justin thought the air was too dense especially at 0 elevation! But no, now I can boost zero psi if I wan't and here is what my problem was..
The attitude box!!! At first i had the instructions for the gen 3 so the install was not even close to be okay lol. The fuel injection was so ****ed up that it would backfire non stop when reving up higher than 6000rpm. Everytime there was a backfire the pipe was push out of the y-pipe thus creating a leak in the circuit and of course with the explosion a back pressure issue. At least that was my conclusion. As soon as I redid the wiring and that it would not backfiring anymore the boost went straitght back to zero. I began testing at 3 psi, than 4-5, and now Im running 7-8 psi with almost no problem.
All that to say, there can be a lot of reasons why it is not going lower than 8 psi. Keep in mind you may have to drill the wastegate hole bigger to allow for an easier airflow.
Me and Justin thougth about it for a looooong time trying to thin about all the possibilities. Looked at the tension in the wastegate, it was ok, dismount everything to make sure nothing was blocking the wastegate and that it was working properly, look for leaks, my last choice was to drew the hole of the waste gate bigger but I didnt have to do it in the end which Im pretty happy with!
Keep in mind that it was minus 10 cielsius on the test ride so Justin thought the air was too dense especially at 0 elevation! But no, now I can boost zero psi if I wan't and here is what my problem was..
The attitude box!!! At first i had the instructions for the gen 3 so the install was not even close to be okay lol. The fuel injection was so ****ed up that it would backfire non stop when reving up higher than 6000rpm. Everytime there was a backfire the pipe was push out of the y-pipe thus creating a leak in the circuit and of course with the explosion a back pressure issue. At least that was my conclusion. As soon as I redid the wiring and that it would not backfiring anymore the boost went straitght back to zero. I began testing at 3 psi, than 4-5, and now Im running 7-8 psi with almost no problem.
All that to say, there can be a lot of reasons why it is not going lower than 8 psi. Keep in mind you may have to drill the wastegate hole bigger to allow for an easier airflow.
Standard actuator is 7-8 lbs minimum
Low elevation actuator is like 4lbs minimum I believe.
Low elevation actuator is like 4lbs minimum I believe.
Make sure the actuator rod is not bidding if not you might need to adjust the tension on the waste gate.
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