Author |
Message |
Alex IROC Z-28
CCFBG Club Member
Joined: Sat Dec 01, 2007 4:41 pm Posts: 1091 Location: Toronto
|
TPI in a boat
Well I was thinking to swap my quadrajet carb to a tpi setup. I know my "canue" likes to rev high so I just wonder if tpi is a good call even that is a intake for low to mid rpm?
Anyone done that? Seen?
Tks
_________________
|
Wed May 18, 2011 4:01 pm |
|
|
Z28 MeTaL HeAd
CCFBG Club Member
Joined: Tue Feb 28, 2006 1:42 pm Posts: 2739 Location: Mississauga
|
Re: TPI in a boat
Alex IROC Z-28 wrote: Well I was thinking to swap my quadrajet carb to a tpi setup. I know my "canue" likes to rev high so I just wonder if tpi is a good call even that is a intake for low to mid rpm?
Anyone done that? Seen?
Tks Not a good idea. You need RPM's in a boat just as much as you do torque and horsepower. Now, if you said you wanna swap a holley stealth ram setup on there then by all means.
_________________2012 Camaro 2SS/RS - LS3/TR6060: BTR Cam, Long Tubes, 3" Catback, UDP, CAI Intake, Air Scoop, 3.91 Gears, Poly Diff Bushings, Toe Arms, Poly Subframe, Poly Radius-Rod bushings, ZL1 Suede Shifter, ZL1 Mounts, Arun Tuned - 475rwhp 443rwtq 11.97 @ 116 w/ 1.85 60'Listen To Song Of My People!
|
Wed May 18, 2011 8:17 pm |
|
|
efh
Senior Forum User
Joined: Sun Jan 07, 2007 3:29 pm Posts: 633 Location: Guelph
|
Re: TPI in a boat
Depends on a lot of thing what rpm does the boat run at cruise ? EFI in a boat isn't as easy to do as in a car , if the boat has water cooled exhaust manifolds then you have issues with no good place for an O2 sensor . LOts of little things to think about and look into .
|
Wed May 18, 2011 8:55 pm |
|
|
lotsatas
CCFBG Club Member
Joined: Sat Jun 04, 2005 6:58 pm Posts: 1291 Location: Waterloo
|
Re: TPI in a boat
|
Thu May 19, 2011 8:16 am |
|
|
FOWL PLAY
CCFBG Club Member
Joined: Mon Sep 01, 2008 9:01 pm Posts: 1061 Location: Barrie
|
Re: TPI in a boat
Put that in your Pontoon boat Paul
_________________ 1995 FORMULA CURRENTLY INBETWEEN RIDES
|
Thu May 19, 2011 11:38 am |
|
|
Alex IROC Z-28
CCFBG Club Member
Joined: Sat Dec 01, 2007 4:41 pm Posts: 1091 Location: Toronto
|
Re: TPI in a boat
Let's say that I like to play with my tools n learn a bit more. I thought I was dropping my new motor on my canue tomorrow but when I pulled my drive out I discover a bad bearing on the transom so no motor in my canue lol
_________________
|
Thu May 19, 2011 9:33 pm |
|
|
ktuga
CCFBG Club Member
Joined: Tue Mar 10, 2009 11:23 pm Posts: 223
|
Re: TPI in a boat
Z28 MeTaL HeAd wrote: Alex IROC Z-28 wrote: Well I was thinking to swap my quadrajet carb to a tpi setup. I know my "canue" likes to rev high so I just wonder if tpi is a good call even that is a intake for low to mid rpm?
Anyone done that? Seen?
Tks Not a good idea. You need RPM's in a boat just as much as you do torque and horsepower. Now, if you said you wanna swap a holley stealth ram setup on there then by all means. its possible and he can use the tpi set up. a company (i think K&N) sells the tpi air filter for marine use. now, he forgot to mention this motor is a 305 center bolt head (same type found on the 87 f-bodies). with the cam he has and some porting on that intake, we can rev a bit higher. efh wrote: Depends on a lot of thing what rpm does the boat run at cruise ? EFI in a boat isn't as easy to do as in a car , if the boat has water cooled exhaust manifolds then you have issues with no good place for an O2 sensor . LOts of little things to think about and look into . about the oxygen sensors, he doesn't need! O2 sensors are just to help on regulating better the air/flue ratio. ALSO, some people mention the fumes and gases that a marine engine can let escape(bc most of them are carburetor). In this case, the gasoline is being injected at the port and not at the start of the runner. And to mention, he has a fan that ventilates the engine compartment. for safety, he could connect that fan to a relay, and everytime he would turn the engine on, the fan would work. any more questions?
|
Thu May 19, 2011 11:22 pm |
|
|
ktuga
CCFBG Club Member
Joined: Tue Mar 10, 2009 11:23 pm Posts: 223
|
Re: TPI in a boat
Alex IROC Z-28 wrote: ....but when I pulled my drive out "but when we pulled the drive out.." thank you
|
Thu May 19, 2011 11:25 pm |
|
|
efh
Senior Forum User
Joined: Sun Jan 07, 2007 3:29 pm Posts: 633 Location: Guelph
|
Re: TPI in a boat
Not sure why everyone seems to think that boat motors scream high rpm .Boat motor are basicly a truck motor on water most cruise at between 3000 and 4500 rpm well in the area that the TPI motor is happiest [best truck motor GM never put in a truck right Hawk ] I wanted to know if what his cruise rpm was just to make sure his wasn't the exception . If your seriously thinking about it then get a set of through the hull headers ,and pick a good camshaft so the you can properly run the EFI and go to it . If your not going to put the headers on it be real careful with cam choice , water cooled exhaust can't handle too much overlap and revision in the exhaust , water tends to get sucked back into the motor rather than dumping into the lake .
|
Fri May 20, 2011 8:41 am |
|
|
mikesz1984
Forum Moderator
Joined: Fri Mar 18, 2005 6:54 am Posts: 1840 Location: ingersoll
|
Re: TPI in a boat
my boat never sees over 4300 rpm, but it is a big block, on my old 18ft with a smaller motor it never seen over 4500 rpm, according to the marina i go to, the boat max speed that you want is all depending on the pitch of the prop, and they recomended getting your best speed at 3900 to 4100, but not going over 4300 ever. but you also want to take into account your holeshot(aka getting the boat up onto plane).
_________________ 355, trickflow heads, comp cams roller cam, compcams rollertip rockers. First fuel injection, t56, hooker headers, dynomax exhaust.
|
Fri May 20, 2011 9:12 am |
|
|
efh
Senior Forum User
Joined: Sun Jan 07, 2007 3:29 pm Posts: 633 Location: Guelph
|
Re: TPI in a boat
mikesz1984 wrote: my boat never sees over 4300 rpm, but it is a big block, on my old 18ft with a smaller motor it never seen over 4500 rpm, according to the marina i go to, the boat max speed that you want is all depending on the pitch of the prop, and they recomended getting your best speed at 3900 to 4100, but not going over 4300 ever. but you also want to take into account your holeshot(aka getting the boat up onto plane). Exactly prop design dictates the rpm a boat motor has to run just like a airplane Gypsy Major airplanes run [if I remember correct 2300 , if it ever hit 3000 things have already gone drasticlly wrong ] Take the exhaust off your car run it under load at 3000 rpm for 1/2 an hour and see what it sounds like .
|
Fri May 20, 2011 9:57 am |
|
|
Alex IROC Z-28
CCFBG Club Member
Joined: Sat Dec 01, 2007 4:41 pm Posts: 1091 Location: Toronto
|
Re: TPI in a boat
ktuga wrote: Alex IROC Z-28 wrote: ....but when I pulled my drive out "but when we pulled the drive out.." thank you Sorry you are wrong u were pulling and I was praying!!! I have to teach you EVERYTHING OMG!!! lol lol lol lol lol lol lol
_________________
|
Sat May 21, 2011 10:44 am |
|
|
|