another cam thread
another cam thread Looking for a cam recommendation for my jet boat. I have a 18' jet boat that i have been running a high compression nitrous 5.3 in for a few years now. It runs really well and i have it pretty dialed in.
i have decided to make the change to turbos and i am working on my kit.
Here are the specs for the build
Iron block 5.7 boring a 5.3 to a 3.905
Edelbrock victor JR intake
Trick Flow gen x 205 heads (58cc)
JE -19.5cc Dish pistons/Scat rods/Stock crank
will have CSU build me a carb
Plan to run either 91, or avgas if i need more boost to hit my goals.
twin rev9 72/68's
No intercooler
im looking for a cam and i do not care about idle quality. I dont mind running decent fuel if i have to but would like to be where i want on 91.
My power goals are very reasonable i feel. Im guessing somewhere in the 800-850 Flywheel HP range will get me where i want to be. I was pretty happy with the on bottle performance of the boat before, and am only looking for a little bit more. Atleast with this hull, if i upgrade hulls i want the ability to "turn it up" for more performance later on if needed
Here are a few that im looking at, thoughts or any recommendations on other cams i am open to
BTR Turbo Stage 2 or 3 cam
TSP "Bald Eagle" LS1 Boosted cam
Lil John's motorsports Stage 2 or 3 twin turbo cam
or any other recommendations?
thanks
i have decided to make the change to turbos and i am working on my kit.
Here are the specs for the build
Iron block 5.7 boring a 5.3 to a 3.905
Edelbrock victor JR intake
Trick Flow gen x 205 heads (58cc)
JE -19.5cc Dish pistons/Scat rods/Stock crank
will have CSU build me a carb
Plan to run either 91, or avgas if i need more boost to hit my goals.
twin rev9 72/68's
No intercooler
im looking for a cam and i do not care about idle quality. I dont mind running decent fuel if i have to but would like to be where i want on 91.
My power goals are very reasonable i feel. Im guessing somewhere in the 800-850 Flywheel HP range will get me where i want to be. I was pretty happy with the on bottle performance of the boat before, and am only looking for a little bit more. Atleast with this hull, if i upgrade hulls i want the ability to "turn it up" for more performance later on if needed
Here are a few that im looking at, thoughts or any recommendations on other cams i am open to
BTR Turbo Stage 2 or 3 cam
TSP "Bald Eagle" LS1 Boosted cam
Lil John's motorsports Stage 2 or 3 twin turbo cam
or any other recommendations?
thanks
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Stock ls1 cam would make 800 flywheel with that setup.
Choose a cam based on dynamic compression and the RPM range you need. Peak power output is going to hit your goals under almost any circumstance.
Choose a cam based on dynamic compression and the RPM range you need. Peak power output is going to hit your goals under almost any circumstance.
TECH Fanatic
Joined: Oct 2015
Posts: 1,280
Likes: 28
From: Pittsboro, IN
I had a stock 4.8 with a pair of those turbos and the LJMS Stage 2 TT cam. Car went 8.95 @ 153 at 3325lbs. Well over 900hp flywheel on e85. Should easily meet your goals with that bigger built motor.
I would rather have something with some decent sound at idle. I dont mind an agressive cam. I am currently running the BTR Stage 4 LS1 cam (235/242 .621/.595 111lsa)
What about the power range of this size turbo? I would like the engine to start making power somewhere around the 3500 rpm range.
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