rjayb Posted August 27, 2014 Report Share Posted August 27, 2014 True.^ but I can run it on GOOD premium pump too. I prefer the 100LL because of the extra lead in it and more cushion as far as anti-deto properties. So did Cam build it as a ported pump gas setup and you just run the AV for extra protection? Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted August 27, 2014 Report Share Posted August 27, 2014 So did Cam build it as a ported pump gas setup and you just run the AV for extra protection?The porting is a touch more "aggressive" than a standard pump gas port. The domes and timing dictate the fuel requirements more than the porting.My dad rides it and I figured a little more grunt would make it an easier ride for him to handle. So I run a little extra timing and 100LL. When I ran it on good premium pump , I backed down the timing some. But I prefer the setup on 100LL for no more than it costs over premium pump. Quote Link to comment Share on other sites More sharing options...
rjayb Posted August 27, 2014 Report Share Posted August 27, 2014 The porting is a touch more "aggressive" than a standard pump gas port. The domes and timing dictate the fuel requirements more than the porting. My dad rides it and I figured a little more grunt would make it an easier ride for him to handle. So I run a little extra timing and 100LL. When I ran it on good premium pump , I backed down the timing some. But I prefer the setup on 100LL for no more than it costs over premium pump. Smart. I'm with you on the compression and timing. Someone mentioned you had additional port work and I was just verifying it wasn't as cast. Have you had it on a dyno? Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted August 27, 2014 Report Share Posted August 27, 2014 Smart. I'm with you on the compression and timing. Someone mentioned you had additional port work and I was just verifying it wasn't as cast. Have you had it on a dyno? Still a little fat, but a really safe tune. Leaning it out would probably net a few more ponies. Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted August 27, 2014 Report Share Posted August 27, 2014 As cast 421 serval is around 75hp. Confirmed on 2 different dynos. Quote Link to comment Share on other sites More sharing options...
rjayb Posted August 27, 2014 Report Share Posted August 27, 2014 That looks like a badass all duner. What pipe and carb setup are you running? Sorry if it says on the dyno sheet but it's kind of small. Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted August 27, 2014 Report Share Posted August 27, 2014 Vforce3. 39pwk. CPI inframe small bore. Quote Link to comment Share on other sites More sharing options...
LaegerEliminator Posted August 27, 2014 Report Share Posted August 27, 2014 That looks like a badass all duner.Exactly!!! Sent from my DROID RAZR using Tapatalk Quote Link to comment Share on other sites More sharing options...
rjayb Posted August 27, 2014 Report Share Posted August 27, 2014 I figured you had some big carbs by that graph. He wants to try mine with 28pwk's first and see what they do. Quote Link to comment Share on other sites More sharing options...
rjdgriff Posted August 28, 2014 Report Share Posted August 28, 2014 I wanna see how mine runs next to yours at the dunes next month:) yours smoked my 4mil. Should be pretty close this year tho. I can't wait to get this thing in the sand and get traction Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted August 28, 2014 Report Share Posted August 28, 2014 I wanna see how mine runs next to yours at the dunes next month:) yours smoked my 4mil. Should be pretty close this year tho. I can't wait to get this thing in the sand and get traction You plan on packing on about 75lbs in a month? Haha Quote Link to comment Share on other sites More sharing options...
rjdgriff Posted August 28, 2014 Report Share Posted August 28, 2014 You plan on packing on about 75lbs in a month? Hahahaha I don't think that will happen lol Quote Link to comment Share on other sites More sharing options...
rjayb Posted October 7, 2014 Report Share Posted October 7, 2014 Just posted the info on the 421 serval Cam built for me in the dyno forum. http://bansheehq.com/forums/index.php?showtopic=178758 Quote Link to comment Share on other sites More sharing options...
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