briana

this is a update on a previous thread, I was having issues with upgraded 502's from az speed package , figured it all out, the motors had bad rings 20% leakage hindering increased hp from the upgrade.

soooo i need some imput on performance based off of the motors that a plan to get built to put in my 1998 35 lightning.

540 ci 675hp naturally asper motors

i plan on converting my current motors to this set up


before i pull the trigger what perfromance #'s will i see with this set up?

jryan26

I would guess 95mph?
Mav35 care to chime in?

Marginmn

iTrader: (1)

If you put some shorties on it that will be a smoking fast ride. Mid to upper 90's.

tomtbone1993

iTrader: (3)

i get 93-95mph with same motors triple application

briana

one question is?

should i make the switch from efi to carb.

i feel that there is a lot more hp to gain out of a carb motor vs. efi
I really would love to get rid of the computers thats why i am thinking carb.

Perfectmix

Hey man, I believe you own the boat with the Livorsi sticker on the side. I saw you in the Palaco Grande canal about a month ago. I was rolling in a 35ZF Donzi with Verados.
Anyway I don't know if you are interested but OSO member Ratman has a set of 700hp na's for sale in the classifieds. He is in Tampa area, I think the mills are still in his boat and can be run. Just a suggestion. Good luck you have a sweet boat.
Josh

briana

yep, thats me, the motors are giving me fits and its time for more hp and speed. i just want the gains iam looking for and i will be done. yea right well for now

BKSAE

Briana, Just sitting here eating lunch and noticed Highest and Best Use. I'm in the same profession here in KY / IN. Do you have a 35'. My old one is for sale right now (96' model). I took 502 efi's out and kept what i could and converted them to 540s with carb (high hp requires fuel-doesnt matter if carb or efi). Carbs are easier to tune. I got 90 mph with 540s in a 96' 35, small step. I never tried imco lowers, but needed them for higher drive height. Probably could have got several more mph out of boat. I ran 89.9 on gps at 5,250 rpm-and I could hold it wide open for a full tank of gas and do it again. I know a good mechanic if you need one.

jryan26

Brian
Who does your motor work?

BKSAE

Kelly Rickert in Evansville, IN. Extreme, Speed & Marine. (812) 457-1294. He's built 2 -540s for me for a 1993-32' boat was real fast and maintenance free. 2-540s for 96' 35' - 89.9 mph-never turned a wrench on them-sold that boat for a 2001 42'. He's currently working on my 575's. Adding chillers, ecm, upgrades and a few other improvements. He's always built them with durability high on the list.