joewest Posted April 16, 2013 Report Posted April 16, 2013 Thinking about getting some shearer pipes wondering how they will work with a aggressive trail port? Gonna build a 421 serval some day. Will they work good with it too? Im asking because I know there made for drag racing Quote
thomas h. Posted April 16, 2013 Report Posted April 16, 2013 I like mine. If your rodeo g in slow tight areas 80% of the time don't buy but if your on the pipe a lot do it. I think most pipes sing off at 8500 rpm but shearer peak at 12k if your carbs can do it. You will notice right away the extra rpm. Quote
joewest Posted April 16, 2013 Author Report Posted April 16, 2013 Do CPI pipes have more mid range then shearer? I trail ride a lot but pretty open trails and like to drag race my friends. Quote
thomas h. Posted April 16, 2013 Report Posted April 16, 2013 If mid range is your aim the consider pro circuit or rockets. CPI and shearer are close with shearer peaking more hp. Quote
joewest Posted April 16, 2013 Author Report Posted April 16, 2013 Yea I've got fattys honestly just don't care for the sound and I want a exhaust that I can build a 421 serval around. I want a pipe that has good mid and high power Quote
10milmike Posted April 16, 2013 Report Posted April 16, 2013 Yea I've got fattys honestlyjust don't care for the sound and I want a exhaust that I can build a 421 serval around. I want a pipe that has good mid and high power How are u going to tell someone to Run CPI if u do not own them. How u you know they have more mid range then Shearer. U ever dyno a set of CPI vs shearer on your motor. I have. And I can tell you this.Shearer was more mid and top power over CPI. And peak Rpm also. Quote
10milmike Posted April 16, 2013 Report Posted April 16, 2013 How are u going to tell someone to Run CPI if u do not own them. How u you know they have more mid range then Shearer. U ever dyno a set of CPI vs shearer on your motor. I have. And I can tell you this.Shearer was more mid and top power over CPI. And peak Rpm also. Sorry I am tried and I read the post wrong. Sorry Quote
skywalker7374 Posted April 16, 2013 Report Posted April 16, 2013 I would go with the shearers, because they hit around 6k and sign off at around 11k...not too many pipes out there with that broad of a power range. Quote
joewest Posted April 16, 2013 Author Report Posted April 16, 2013 How do DMC 916 compare to shearers? Will they still work with a 421 serval? Quote
Nightmare Posted April 16, 2013 Report Posted April 16, 2013 How do DMC 916 compare to shearers? Will they still work with a 421 serval? They don't compare. Two different pipes for different riding styles. Sent from my SGH-T679 using Tapatalk 2 Quote
joewest Posted April 16, 2013 Author Report Posted April 16, 2013 Will they still work good with a serval? Quote
skywalker7374 Posted April 16, 2013 Report Posted April 16, 2013 http://forums.atvdragracers.com/index.php?app=core&module=attach§ion=attach&attach_id=12209 Here is a good dyno run that shows the true potential of a shearer inframe. This motor was built by Matt Shearer..and its really not an all out motor just made for broad real world useable power Quote
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