No Limit Powersports Posted January 16, 2011 Report Share Posted January 16, 2011 CP industries has done single handledly more things for this industry than probably any other company in the business. Calvin is an innovater and without him where would our sport be today. NO other cylinder manufacturer builds anything even remotely close to the serval cylinders. Everyone thinks they know what will work on these cylinders because thats what worked on there stock cylinder. Its not opinion but fact that a traditional trail style pipe will not come close to performing as other options will from bottom to top. The idea behind the serval is to be able to bolt on big hp and tq numbers that are not directed for the drag strip, and thats exactly what they did. IMO they are the perfect setup for just about anybody thats not trying to drag race. They can be setup to make the power and tq you want at a usable rpm all while doing it on pump fuel. Quote Link to comment Share on other sites More sharing options...
RZBansheeMan Posted January 17, 2011 Report Share Posted January 17, 2011 (edited) CP industries has done single handledly more things for this industry than probably any other company in the business. Calvin is an innovater and without him where would our sport be today. NO other cylinder manufacturer builds anything even remotely close to the serval cylinders. Everyone thinks they know what will work on these cylinders because thats what worked on there stock cylinder. Its not opinion but fact that a traditional trail style pipe will not come close to performing as other options will from bottom to top. The idea behind the serval is to be able to bolt on big hp and tq numbers that are not directed for the drag strip, and thats exactly what they did. IMO they are the perfect setup for just about anybody thats not trying to drag race. They can be setup to make the power and tq you want at a usable rpm all while doing it on pump fuel. What exactly is the general consensus on the best all round 80 hp with broad torque set up combination ( using current design ) pipes - carbs - timing - compression ?? Mike Edited January 17, 2011 by RZBansheeMan Quote Link to comment Share on other sites More sharing options...
SuperMex Posted January 17, 2011 Author Report Share Posted January 17, 2011 What exactly is the general consensus on the best all round 80 hp with broad torque set up combination ( using current design ) pipes - carbs - timing - compression ?? Mike That's my question, I am no expert nor am I a guy who builds these motors for a living so that being said what is the best all around setup for a duner. M&M atv you guys have had your hands on a few of these and I am personally going to be buying one of these bad boys thru you so are R-2s and say 35pwk going to fit this cylinder? What is the best general setup numbers wise? Quote Link to comment Share on other sites More sharing options...
rubberneck Posted January 17, 2011 Report Share Posted January 17, 2011 CP industries has done single handledly more things for this industry than probably any other company in the business. Calvin is an innovater and without him where would our sport be today. NO other cylinder manufacturer builds anything even remotely close to the serval cylinders. Everyone thinks they know what will work on these cylinders because thats what worked on there stock cylinder. Its not opinion but fact that a traditional trail style pipe will not come close to performing as other options will from bottom to top. The idea behind the serval is to be able to bolt on big hp and tq numbers that are not directed for the drag strip, and thats exactly what they did. IMO they are the perfect setup for just about anybody thats not trying to drag race. They can be setup to make the power and tq you want at a usable rpm all while doing it on pump fuel. I know in the ATVdragracers thread it was mentioned that with the dome configuration they tried, that raising compression and timing simply resulted in more detonation. Have you guys been able to play with any race fuel set ups yet. I know they are still fairly new, i was just wondering if you have been able to gain even more in the middle. I have been running race fuel in my stock cylinder bikes for the last couple of years. Cheaper fuel sounds killer, but since im running it anyway in the other bikes i was thinking may as well set this one up for 110 also. Or have you found it to be detrimental as well. Im running CPI inframes and 34 lectrons on the bike. Im thinking this would make a good combo based on all the threads so far. Quote Link to comment Share on other sites More sharing options...
No Limit Powersports Posted January 17, 2011 Report Share Posted January 17, 2011 There are some gains to be had from bumping up the compression some but its not a huge gain. Big enough to justify race fuel?... well probably not for me at least. My vision of the serval cub is to be able to build a killer trail dune motor that will do everything that you want it to do well. If im building a trail motor or a dune motor IMO i would personally set it up for pump fuel cause its my daily driver if you will. The serval did not like timing in the testing we done so this just drove the nail in the coffin in the "this is going to be a perfect pump gas motor" discussion. Knowing the characteristics of the r2's i think that they will be a good choice for the serval, the best?... thats tbd. If i was personally setting another one up for my self from scratch it would have shearers 35 pwk's and run on pump gas. Do some killer suspension work and this would be a awesome duner. Quote Link to comment Share on other sites More sharing options...
SonOfSand Posted January 17, 2011 Report Share Posted January 17, 2011 There are some gains to be had from bumping up the compression some but its not a huge gain. Big enough to justify race fuel?... well probably not for me at least. My vision of the serval cub is to be able to build a killer trail dune motor that will do everything that you want it to do well. If im building a trail motor or a dune motor IMO i would personally set it up for pump fuel cause its my daily driver if you will. The serval did not like timing in the testing we done so this just drove the nail in the coffin in the "this is going to be a perfect pump gas motor" discussion. Knowing the characteristics of the r2's i think that they will be a good choice for the serval, the best?... thats tbd. If i was personally setting another one up for my self from scratch it would have shearers 35 pwk's and run on pump gas. Do some killer suspension work and this would be a awesome duner. What about splitting the difference and running Avgas (100LL)? Is there a happy medium of timing an compression that would give enough gains to justify 100LL @ $4.70/gallon? Or has the law of "diminishing returns" set in at 91 octane? Thanks for all your feed back Andy, I think about Servals all day now. Quote Link to comment Share on other sites More sharing options...
No Limit Powersports Posted January 17, 2011 Report Share Posted January 17, 2011 We run av gas in lots of bikes with great success. Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted January 18, 2011 Report Share Posted January 18, 2011 (edited) I was really leaning towards the race gas build too. I run 110 at 40:1 in all my bikes and only use this one for Silverlake. (This serval would be in the wife's dune bike with a +6 arm) I don't want to buy 2 different fuels. I'd like to do either a 400cc stock stroke long rod serval (I already have this crank&rod combo) or a 421cc 4mill long rod serval with either CPI Big Bore In-Frames or Shearer Small Bore In-Frames. (I have both and would dyno to find the best choice for this combo) I was hoping that with a little more compression and +4 timings I might see a little more HP and even more torque in the mid. You dont think so? Don't get me wrong...we should all applaud the fact that you can make 80HP on pump gas. (Your not going to get that out of a fully dune ported 4mill stock cylinder on pump gas. ) But there has to be a way to tweek a little more out if the fuel will allow it..... Edited January 18, 2011 by WINDYCITYJOHN400 Quote Link to comment Share on other sites More sharing options...
SuperMex Posted January 20, 2011 Author Report Share Posted January 20, 2011 I just received my R-2's in the mail now I just need my Serval. Quote Link to comment Share on other sites More sharing options...
Keyser Soze Posted January 20, 2011 Report Share Posted January 20, 2011 T-shee should have have rundmc's sevral put together within a couple weeks. Excited to see how they perform in the woods of indiana. Plan on ordering one myself. I assume 30mm oko's would suffice? Quote Link to comment Share on other sites More sharing options...
gotta_goatsfast Posted January 20, 2011 Report Share Posted January 20, 2011 T-shee should have have rundmc's sevral put together within a couple weeks. Excited to see how they perform in the woods of indiana. Plan on ordering one myself. I assume 30mm oko's would suffice? You will most likely give up a little on the top end... but it won't be by much. Just be careful not to suck them bowls dry! Quote Link to comment Share on other sites More sharing options...
tedd1 Posted January 20, 2011 Report Share Posted January 20, 2011 CP industries has done single handledly more things for this industry than probably any other company in the business. Calvin is an innovater and without him where would our sport be today. NO other cylinder manufacturer builds anything even remotely close to the serval cylinders. Everyone thinks they know what will work on these cylinders because thats what worked on there stock cylinder. Its not opinion but fact that a traditional trail style pipe will not come close to performing as other options will from bottom to top. The idea behind the serval is to be able to bolt on big hp and tq numbers that are not directed for the drag strip, and thats exactly what they did. IMO they are the perfect setup for just about anybody thats not trying to drag race. They can be setup to make the power and tq you want at a usable rpm all while doing it on pump fuel. There are some gains to be had from bumping up the compression some but its not a huge gain. Big enough to justify race fuel?... well probably not for me at least. My vision of the serval cub is to be able to build a killer trail dune motor that will do everything that you want it to do well. If im building a trail motor or a dune motor IMO i would personally set it up for pump fuel cause its my daily driver if you will. The serval did not like timing in the testing we done so this just drove the nail in the coffin in the "this is going to be a perfect pump gas motor" discussion. Knowing the characteristics of the r2's i think that they will be a good choice for the serval, the best?... thats tbd. If i was personally setting another one up for my self from scratch it would have shearers 35 pwk's and run on pump gas. Do some killer suspension work and this would be a awesome duner. This is inside info coming from the guy that has had more time with a Serval on a dyno (and published the results in open forums) than anybody else that I know of. Maybe it's just me, but if I was gonna build one of these, I would consider very carefully what this guy has to say... Quote Link to comment Share on other sites More sharing options...
zachass9 Posted January 20, 2011 Report Share Posted January 20, 2011 X2 Andy has spent the time and money to do the R&D on the Serval, and that is why he is building mine! I am going to set it up with 35 pwks on pump gas, with his domes and shearer sbsf inframes, just as he informed me to!! LOL I am doing a stock stroke serval, so hopefully we will have some numbers on the ss version very soon! Zac Quote Link to comment Share on other sites More sharing options...
Nathanwilmes Posted July 15, 2016 Report Share Posted July 15, 2016 Sooo, how do u guys like your Serval's??? I know this is an old thread but im building a serval and saw couple of you were in the process of biulding sevral's years ago and someone kept saying, "once they are out for a while then more will be known" or something like that. Well share the knowledge. Im rebiulding my 91 into one now. Putting 35.5 big bowl mikuni flatslides on it, trued and weld stock crank stock stroke, fast head with 19cc domes(running half 91 half c12 klotz 40:1) getting pro mod done to tranny and heavier springs put on stock clutch. And putting on a pair of pro circuits. I see in the thread a lot of ppl looked down on the trail pipe and would like to hear a later input on it. I will be dynoing this quad after its done in a week or so. Quote Link to comment Share on other sites More sharing options...
Sandking Posted July 15, 2016 Report Share Posted July 15, 2016 Seems like they really like more of a top end pipe like Shearers, Snipers, or CPI's. They also consume more fuel so if your running expensive gas and going on long rides you might want to rethink that one. Quote Link to comment Share on other sites More sharing options...
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