trickedcarbine Posted March 28, 2013 Report Share Posted March 28, 2013 Just curious as a comparison, have you ever had your 18dm dyno'd? what did it make? You would think there would be a huge difference between 18dm and 4m serval. Is this Kevin Gigot? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 28, 2013 Report Share Posted March 28, 2013 Cheek with Andy at no limits he's been telling me of some nice results he's been getting from porting the serval. He was telling me last week about a 392 he done stock carbs PC pipes with lower compression 120 psi (was what customer ask for) that he ported made low 70's I think he said 72hp 43tq. He said a little more compression and CPI pipes and he thought close to 80 was reachable with that engine ported. Huh, Andy is finally a believer in the PC combo now?..... Quote Link to comment Share on other sites More sharing options...
gomerkfx700 Posted March 28, 2013 Report Share Posted March 28, 2013 No he is not thats what the customer had or wanted so that's what it was tuned with he said it would have been close to 80 with better pipes to make a long story short Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted March 28, 2013 Report Share Posted March 28, 2013 I also need to add that I rode a FAST 4mm Serval with a cleanup port at Nationals last year and it had tons of power everywhere. I ran the same 22" cut tires that I run on the 18DM with 15/41 gearing and it pulled them easily. I'm guessing that motor to make mid 70s for power. Just curious as a comparison, have you ever had your 18dm dyno'd? what did it make? You would think there would be a huge difference between 18dm and 4m serval. No comparison at all. My 18DM makes 136hp and 78tq. Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted March 28, 2013 Author Report Share Posted March 28, 2013 I wonder how a high HP banshee dyno chart looks overlayed on a high hp 4 stroke curve. I know TQ is king for them. Quote Link to comment Share on other sites More sharing options...
possum Posted March 29, 2013 Report Share Posted March 29, 2013 No comparison at all. My 18DM makes 136hp and 78tq. Are these numbers a lil low for a 18 dm? Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted March 29, 2013 Report Share Posted March 29, 2013 No comparison at all. My 18DM makes 136hp and 78tq.Are these numbers a lil low for a 18 dm? My junk is on gas with in-frames. With the DM out-frames it made 6 more HP. I'm guessing alky would be another 10 or so? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 29, 2013 Report Share Posted March 29, 2013 My junk is on gas with in-frames. With the DM out-frames it made 6 more HP. I'm guessing alky would be another 10 or so? Any way you guys can get some sort of hand built inframes done to make up the difference, or is it totally redundant? Andy at Grand River is a whiz with that shit. But I can see why you guys are hesitant to venture off from what you have because it still works so well Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted March 29, 2013 Report Share Posted March 29, 2013 Any way you guys can get some sort of hand built inframes done to make up the difference, or is it totally redundant? Andy at Grand River is a whiz with that shit. But I can see why you guys are hesitant to venture off from what you have because it still works so well I'm more interested in the torque curve than peak HP. It has better torque with the in-frames. Quote Link to comment Share on other sites More sharing options...
special06shee Posted March 29, 2013 Report Share Posted March 29, 2013 I'm more interested in the torque curve than peak HP. It has better torque with the in-frames. Does this apply on most motors? Or just your particular build? (As far as a better tq curve with in frames) Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted March 29, 2013 Report Share Posted March 29, 2013 Does this apply on most motors? Or just your particular build? (As far as a better tq curve with in frames) I would venture to say most motors will make better torque with in-frames. Quote Link to comment Share on other sites More sharing options...
Sev Posted March 29, 2013 Report Share Posted March 29, 2013 I was out at Redline in February and witnessed a ported 4mm Serval on pump gas with I believe 35mm PWK make 85hp with CPI. Un-ported, that motor made 78 I think. On race fuel, I believe Redline is getting low 90s. That was my motor and it did dyno at 85.78 after porting (got to through that .78 in there) lol. the timing is set at 4.5 degrees with Cameron's cut domes. I love this set up for a fast dune play bike. Oh before the porting it dyno'd at 74.54. and yes this is on pump. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted March 29, 2013 Report Share Posted March 29, 2013 Well, there you go! Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted March 29, 2013 Report Share Posted March 29, 2013 That was my motor and it did dyno at 85.78 after porting (got to through that .78 in there) lol. the timing is set at 4.5 degrees with Cameron's cut domes. I love this set up for a fast dune play bike. Oh before the porting it dyno'd at 74.54. and yes this is on pump. What kinda torque? Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted March 29, 2013 Author Report Share Posted March 29, 2013 Sev you have to post some videos of your bike to hold me over until mine is done! Quote Link to comment Share on other sites More sharing options...
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