496 HO manifold restrictor plate removal?
05-16-2005, 03:22 PM
#32
Registered
Join Date: Apr 2004
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
Re: 496 HO manifold restrictor plate removal?
I removed my restrictor plates last week after reading these threads and gained about 100-150 RPM and about 1.5MPH on the GPS. Exhaust sounds a little deeper too.
2001 Baja H2X with 496 Mag HO. Thanks for the advise on easy HP!
2001 Baja H2X with 496 Mag HO. Thanks for the advise on easy HP!
Platinum Member
12-15-2007, 08:29 AM
#36
Registered
Ray is right. I did talked to Merc. about ths for my 496's.
In short. If the warranty is up.. remove it in the warmer/Southern states. Less condensation. Important to "warm" and "cool" at start and shut off to burn off any moisture. Merc. does not reccomend it officially, but will admit some little HP gain, with no negatives, but possible moisture issues.
In short. If the warranty is up.. remove it in the warmer/Southern states. Less condensation. Important to "warm" and "cool" at start and shut off to burn off any moisture. Merc. does not reccomend it officially, but will admit some little HP gain, with no negatives, but possible moisture issues.
12-16-2007, 05:07 PM
#38
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Bob LLoyd posted his dyno test results with and with out the turbulator on his Full Throttle Marine web site. Removal neted 8 hp. http://www.fullthrottlemarine.com/49...%20Article.htm.
12-16-2007, 05:24 PM
#39
Bob LLoyd posted his dyno test results with and with out the turbulator on his Full Throttle Marine web site. Removal neted 8 hp. http://www.fullthrottlemarine.com/49...%20Article.htm.
12-17-2007, 08:08 AM
#40
Registered
Join Date: Apr 2002
Location: Henderson KY
Posts: 946
Likes: 0
Received 0 Likes
on
0 Posts
