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Ok i'm looking for some advice for all the gear heads out there. This past summer I upgraded our prop from a 3 blade aluminum to a 4 blade stainless and it make a great deal of difference in the hole shot. Does anyone have any experience with any engine upgrades to get some additional horsepower out of their 5.0l merc? I saw this Boost Chip online has anyone used these or heard of these helping?
Hello. I have a 2011 signature 310 and have had nothing but issues since the day I bought it. In the beginning i had electrical issues and the boat would keep shutting off after several months that was resolve and since then I been having issues with the boats performance and fuel economy. Top speed is around 40 mph with less than a half a tank of gas on a good day and fuel consumption is around 45gph at WOT. The port motor (mercruiser 5.0) is always a few hundred RPMs lower than the starboard when accelerating and at WOT. And the port motor is always burning around 2gph more than the starboard. The dealer and chaparral do not seem to know what the issue is. I tried in the beginning of the season changing the props from 22.5 to 24's but all that did was give me slower acceleration. Does anyone have any thoughts as to what the issue may be and how I can fix it. I been living with it for 2 years and quite frustrated. Thanks in advance for any help.
Finally overcame my fear of drilling Gelcoat and installed the trim tabs. WOW! Handling is dramatically improved. The bow hardly rises on hole shot, and nose wandering at idle speed is non-existent. I can't tell if top speed has improved because I am working some water out of the gas tank, but I can tell by feel that planing time and speed have improved. I can highly recommend the mod.