If you don't mind me asking, what was the dollar outlay for this upgrade in power?hand26 foot Force cat with cuddy and open bow. Installed whipple along with good set of pistons and rods on 496HO went from 70 to 88 on gps. Mid -range is great. 30 pitch ( not Labbed)
So roughly $1K per MPH. How many hours were on your HO? I've got 150 on mine and looking to upgrade power over the winter season. Want mid to upper 80's MPH. Thanks!devilI spent approx 17,000 on upgrades. That includes motor coming out and block being deck, bored. Went through stock heads just to make sure.
2005 built HO. I'll have to look into wether it has the Moto puter. Was originally thinking about a 525 as an upgrade, but like that whipple bump in HP! Oh, shouldn't the exhaust (headers) be changed or upgraded? I'll need to change out the steering and am now also thinking bout the drive toughness...Sounds like the kids won't get any presents for Christmas!devilDepends on which HO you have. If yours is an older one with a motorola computer you are limited. That computer cant be reprogramed, but should have a forged crank. If it is newer, you need to change the crank, pistons, rods, slap a blower on it with some boost(6-8psi) and get the computer remapped. That will get you where you want. I rebuilt mine last winter( mine is the old one) and can only get 81.The motor had a procharger on it for four seasons when i decided to freshen it up. I had the heads ported and polished but made no difference in regards to performance, the computer held me back. Hape this helps
...as a point of reference then, a whippled HP500 is what you suggest as a possible cost effective power upgrade? Are we talking roughly 700 to 750 HP? I appreciate your feedback!devilThe 525 will be your best bet but still wont be enough for high 80s without a supercharger. I believe the the HP500 is better suited for boost. With a 525 they basically convert the electronics back to a HP500 and supercharge it so dont waste the extra dough if you are looking for the extra power.