Atomic Monkey Posted July 6, 2014 Author Report Share Posted July 6, 2014 Does anyone know if UPP part # 1106 is the one for use with the crossover tube? Having problems finding that out on the Googler... Quote Link to comment Share on other sites More sharing options...
slobanshee Posted July 6, 2014 Report Share Posted July 6, 2014 Why not remove the crossover all together Quote Link to comment Share on other sites More sharing options...
Atomic Monkey Posted July 6, 2014 Author Report Share Posted July 6, 2014 I want to keep the crossover. Maybe its just being anal-retarded about things, but I think it helps buffer the intake pulses and aids in keeping the airflow across the jets more consistant at lower RPMs. Also, I set the cylinders up individually, and the adaptors I made for my sync gauge fit real nice in those ports with the crossover removed. Quote Link to comment Share on other sites More sharing options...
Atomic Monkey Posted July 6, 2014 Author Report Share Posted July 6, 2014 Anybody remember the days of "Roost Boost" and the Yamaha "Energy Induction". I was surprised to see a stock "boost bottle" on a newer Rotax 600 when I helped rebuild some carbs last winter. Seems like its more than just an aftermarket gimmick if OEMs are doing it. Granted, it won't really do anything if you run WOT all the time. Quote Link to comment Share on other sites More sharing options...
Nightmare Posted July 6, 2014 Report Share Posted July 6, 2014 My 35 PWK'S never hit with UPP's Neither do my Mikuni 41's It's the billet intakes that are the problem. Get the UPP. Agreed, next intakes I buy will be upp's. Imo the wicked motorsports intakes are probably as good as it gets when it comes to billet. Quote Link to comment Share on other sites More sharing options...
iLLiCiT Posted July 6, 2014 Report Share Posted July 6, 2014 Upps Quote Link to comment Share on other sites More sharing options...
possum Posted July 6, 2014 Report Share Posted July 6, 2014 Upps Quote Link to comment Share on other sites More sharing options...
Deadbeat Posted July 7, 2014 Report Share Posted July 7, 2014 Trinity Stage IV 2 into 1 no wait.. maybe...herm....Upps? Quote Link to comment Share on other sites More sharing options...
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