Offshoreonly.com
Page 5 of 6
« First
3
4
5
6
Show 40 post(s) from this thread on one page

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   Thoughts on 496 HO and other engines in stock form? (https://www.offshoreonly.com/forums/general-boating-discussion/346912-thoughts-496-ho-other-engines-stock-form.html)

Ryan00TJ 11-20-2017 09:01 PM
Originally Posted by Knot 4 Me (Post 4594853)
I don't believe you can get that coop gap intake anymore from Raylar. Now they just hog out the stock intakes. Better flow but they are still a heat sink.
They will still make them but $$$. Updated pricing is on their website. The intake is a very nice piece and you can really see the time and effort required to build one.

Keith Atlanta 11-20-2017 09:15 PM
There were a few methods of extrude honing the stock intake. Then there were a few people porting them too, but they would cut the plenum off the bottom so they can get to the runners then weld it back on. If they could get a hundred more horsepower out of the stock intake I still dont know if I could use it - it is one ugly son of a gun.

Somebody should summon Vortech Bandit. He has modified the 496 as much or more than Raylar. Extremely creative guy and spent a lot of time but really got the 496 pumping.

BUP 11-20-2017 11:01 PM
Originally Posted by Keith Atlanta (Post 4594945)
There were a few methods of extrude honing the stock intake. Then there were a few people porting them too, but they would cut the plenum off the bottom so they can get to the runners then weld it back on. If they could get a hundred more horsepower out of the stock intake I still dont know if I could use it - it is one ugly son of a gun.

Somebody should summon Vortech Bandit. He has modified the 496 as much or more than Raylar. Extremely creative guy and spent a lot of time but really got the 496 pumping.
Just to add - their starting platform was not black side mercruiser it was the GM HP 3 - 8100 with 525 to 550 hp to start with inwhich was a lot better starting point than the Merc HO mag 425 hp. The HP 3 - 8100 used MEFI 4 compared to PCM 555 inwhich early years of 555 no one had a remap program offering.

MR.HAPPY 11-21-2017 01:36 PM
How many safe Horses can you get out of remapping the PCM on a HO?

c0ncEpT 11-21-2017 03:27 PM
Originally Posted by boomer (Post 4554142)
Because no engine should be run at 5000 rpm all the time unless its in a 500 mile race at Daytona.
Why would you run an engine around the Dayton 500 at half throttle?

Sydwayz 11-21-2017 03:59 PM
Originally Posted by c0ncEpT (Post 4595104)
Why would you run an engine around the Dayton 500 at half throttle?
If I had 2X as much power as 2nd place, sure; just enough throttle to stay out front.

hogie roll 11-21-2017 05:12 PM
Fastest 496 boats are what?

BUP 11-21-2017 08:08 PM
Originally Posted by hogie roll (Post 4595125)
Fastest 496 boats are what?
Sportboat stock apps for retail sales these 2 come to mind, The Velocity 260 and 30 Y2k Superboat --- totally complete stock installs of the Mercruiser 496 HO 425 hp / Bravo drives.

Knot 4 Me 11-22-2017 07:59 AM
Didn't Eliminator run 105 MPH in a 30' cat with stock 496 MAG HO's?

CJSYD 11-26-2017 08:24 AM
Originally Posted by Ryan00TJ (Post 4594538)
I'm currently installing Raylar's rockers and 80mm Cool Gap intake. I had these parts on the shelf so I figured might as well install them.
Looking forward to the bolt on results... Nice!


All times are GMT -5. The time now is 09:50 PM.
Page 5 of 6
« First
3
4
5
6
Show 40 post(s) from this thread on one page


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.