header |
|
#1
12-01-2009, 12:13 PM
|
||||
|
||||
|
HP estimate
I know that when new, the non HO 351 was 240 HP. The HO motor (gt40 heads) was 285. From what I have read, the gt40p heads are a little better, about 15 hp more. If I were to add a Performer (or Performer RPM) intake, what additional impact do you think it would have on the hp? 10, 20, 30 extra?
|
|
#2
12-01-2009, 01:22 PM
|
||||
|
||||
|
Quote:
Jim@BAWS
__________________
James (Jim) Kranendonk Pres-BAWS
Tampa Bay's Exclusive MasterCraft Dealer www.BAYAREAWATERSPORTS.com (813) 996-BAWS (2297)
|
|
#3
12-01-2009, 02:28 PM
|
||||
|
||||
|
The performer specs about 10--15 hp. What you will notice is mid range torque. In my experience, it was a nice compliment to the stock GT40 heads.
__________________
Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
|
|
#4
12-01-2009, 02:31 PM
|
||||
|
||||
|
I would recommend the Performer for a boat. I think the Performer RPM is gonna give up some on the bottom and have more than you will use on the top. I think a 15hp gain would be a good guess. Probably not enough for a noticeable seat of the pants difference.
|
|
#6
12-01-2009, 04:58 PM
|
||||
|
||||
|
Quote:
|
|
#7
12-01-2009, 09:04 PM
|
||||
|
||||
|
If you are putting the plain old performer on a 91 and up boat, you are going to be really close to the motorbox, even with a low profile flame arrestor that is fairly hard to come by these days. You could lose the spacer under the carb if applicable. I found myself carving a channel in the noise reduction foam to get some head space.
One suggestion that I never got around to trying is putting a collar on the bottom of the motorbox to raise it up. Seems like a cheap and somewhat easy solution.
__________________
Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
|
|
#8
12-01-2009, 09:39 PM
|
||||
|
||||
|
Quote:
__________________
1991 ProStar 190—Acme 475, GT40-P heads, Edelbrock Performer intake, Mallory YLM Ignition The world is full of youth—what we need is a fountain of smart!
|
|
#10
12-02-2009, 11:03 AM
|
||||
|
||||
|
Quote:
__________________
Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
