robert.b.west Posted October 24, 2011 Report Posted October 24, 2011 I got my Serval back in March. My mods are listed in my sig. The only difference was the pipes. When I got it I did not want to spend money on another set of pipes so I just stuck with my t-5's and it ran very well but it was not as significant of an upgrade from my dune ported 350 as I would have liked. At the time I was actually regretting getting the serval and thinking that I should have got a cub. Over the summer I ended up breaking down and buying a set of cpi's and going with what other people seem to be running on the Serval. The power increase was very significant. The t-5's seemed to have just a mediocre mid to high end power but the cpi's really seemed to wake it up from late mid range to high. After switching to the cpi's I now really enjoy this motor and would suggest it to anyone that is looking for a dune motor that also like to drag for fun. Quote
lms1977 Posted October 24, 2011 Report Posted October 24, 2011 good right up!! how much if any did it affect you bottom end power? Quote
robert.b.west Posted October 24, 2011 Author Report Posted October 24, 2011 good right up!! how much if any did it affect you bottom end power? I would say that bottom to mid range was for the most part an unnoticeable change between the two sets of pipes but it was a big change from the dune ported 350 to the serval. Quote
barahonapr Posted October 24, 2011 Report Posted October 24, 2011 Hopefully the shearers I get make a big difference! Im going from totally stock yo serval 35mm carbs shearers. So im sure I could tell..haha Quote
sprinklerman Posted October 24, 2011 Report Posted October 24, 2011 Hopefully the shearers I get make a big difference! Im going from totally stock yo serval 35mm carbs shearers. So im sure I could tell..haha I did a 421 serval on my bike (now my wifes) and went from t5's to Shearers..the T5's were holding it back seriously compared to the Shearers. You'll be pleased with your choice. Quote
lms1977 Posted October 24, 2011 Report Posted October 24, 2011 I did a 421 serval on my bike (now my wifes) and went from t5's to Shearers..the T5's were holding it back seriously compared to the Shearers. You'll be pleased with your choice. did you notice any difference in bottom and midrange? Quote
sprinklerman Posted October 24, 2011 Report Posted October 24, 2011 honestly, its hard to tell the bottom- end power because it comes"on the pipe" so fast...... but the mid-range pull was quite a bit better. The over-rev and top-end pull were also much better. Quote
barahonapr Posted October 24, 2011 Report Posted October 24, 2011 I hope mine does!! How many hoses did u get on it? Quote
sprinklerman Posted October 25, 2011 Report Posted October 25, 2011 I hope mine does!! How many hoses did u get on it? Darn close to 80HP after more tuning and a swap to 35PWK's. Quote
dirtydownunder Posted October 25, 2011 Report Posted October 25, 2011 shearer and cpi have more power everywhere, compared to the t5 on the serval. t5 is a crap pipe for the serval. Quote
guns4children Posted October 25, 2011 Report Posted October 25, 2011 serval w/ r2s and 35pwks FTW! its making big hp and its still in boxes! Quote
camatv Posted October 25, 2011 Report Posted October 25, 2011 are those hand coned CPI's? thats sweet Quote
bigborebanshee Posted October 25, 2011 Report Posted October 25, 2011 I did not have T-5, I had DMC aliens which are not much different than T-5's on a set of vitos 421 cylinders.With 30mm carbs and DMC pipes,it made 55hp I bolted on a set of CPI inframes and 34.5 PJ carbs with a full airbox and K&N powerlid.The engine made just under 80hp and probably would have made more with shearers considering the 200 degree exh port duration .Some pipes just won't work on the big bore stroker engines. Quote
figaro Posted October 26, 2011 Report Posted October 26, 2011 guys I'm starting my build this month probably next week i will buy the suspension and tires etc... so i was wondering what will i be best off with Serval dune ported and 35pwk on Sheerers or CPIs? also should i use Hanson full clutch parts or lock up ? will i need a cool head for the bike and a larger radiator ? Quote
Glenyboy Posted October 26, 2011 Report Posted October 26, 2011 guys I'm starting my build this month probably next week i will buy the suspension and tires etc... so i was wondering what will i be best off with Serval dune ported and 35pwk on Sheerers or CPIs? also should i use Hanson full clutch parts or lock up ? will i need a cool head for the bike and a larger radiator ? Try some r2 pipes, haven't heard a bad thing about them! Quote
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