|
Originally Posted by Petesflht
(Post 3249439)
I did the raylar upgrade along with dana flow torque headers on my 496 ho. the set up is suppose to dyno out at 572 hp. top end is 75 gps with a 1.5 bravo, labbed 28" bravo1, midrange is really nice and gets on plane effortlessly. I had hoped for a higher top end, this cost me just over 15 K.
|
Originally Posted by Petesflht
(Post 3249439)
I did the raylar upgrade along with dana flow torque headers on my 496 ho. the set up is suppose to dyno out at 572 hp. top end is 75 gps with a 1.5 bravo, labbed 28" bravo1, midrange is really nice and gets on plane effortlessly. I had hoped for a higher top end, this cost me just over 15 K.
|
I have a 95 525 and the factory performance sheet says 78.7mph on radar with a bravo one 14.5x26 4blade. Havent got it fixed up yet to confirm those numbers.
|
Let's always compare Apples to Apples!
The speed differences here need to be compared based on GPS or speedo and the water type, salt or fresh and how well the propping is being done. Also remember a 525efi will run up to 5400rpm on its rev limiter setting while a 496HO will top out at 5150 rpm with a Raylar kit and no re-programming so the extra rpm available with re-programming and good prop work will make them perform the same. With a good aftermarket header the Raylar'd 496 will give any Merc 525efi a run for its bragging rights. Hey, they are great engines, they outta be, they cost 2-3 times more than a stock 496HO!
We ran a Raylar equipped 496HO in our Laveycraft race boat in 2006-2008 and we actually out accelerated the 525's out of the turns and our speed runs at Loto speak for themselves. As for the weaknesses of the 496, yes a few have broken pistons, many of those supercharged stock blocks but the percentage of breakage will fool you. There are over 35,000 496's out there in our sport versus about 4,000 HP525efi's and the 496 actually has less broken engines from pistons by percentage than the broken HP525efi's in the last 9 years. Lets face it a lot of claims versus real world results on the internet forums are about 25% misinformation,25% stretch, 25% hearsay 25% and actual verifiable results! Best Regards, Ray @ Raylar |
25% misinformation,25% stretch, 25% hearsay |
Originally Posted by Raylar
(Post 3268126)
The speed differences here need to be compared based on GPS or speedo and the water type, salt or fresh and how well the propping is being done. Also remember a 525efi will run up to 5400rpm on its rev limiter setting while a 496HO will top out at 5150 rpm with a Raylar kit and no re-programming so the extra rpm available with re-programming and good prop work will make them perform the same. With a good aftermarket header the Raylar'd 496 will give any Merc 525efi a run for its bragging rights. Hey, they are great engines, they outta be, they cost 2-3 times more than a stock 496HO!
We ran a Raylar equipped 496HO in our Laveycraft race boat in 2006-2008 and we actually out accelerated the 525's out of the turns and our speed runs at Loto speak for themselves. As for the weaknesses of the 496, yes a few have broken pistons, many of those supercharged stock blocks but the percentage of breakage will fool you. There are over 35,000 496's out there in our sport versus about 4,000 HP525efi's and the 496 actually has less broken engines from pistons by percentage than the broken HP525efi's in the last 9 years. Lets face it a lot of claims versus real world results on the internet forums are about 25% misinformation,25% stretch, 25% hearsay 25% and actual verifiable results! Best Regards, Ray @ Raylar |
I have a 95 27 with 525sc the factory sheet says 78.9 on radar. I haven't got it out yet but I'm sure that is close. 1.5 Bravo
|
Originally Posted by EarlyInheritance
(Post 3402228)
I have a 95 27 with 525sc the factory sheet says 78.9 on radar. I haven't got it out yet but I'm sure that is close. 1.5 Bravo
|
540 -2 imco shortie
|
I like Raylar's setup..and its trouble free... nice gear..dont knock if you havent tried it!!and I have Dana Flo Torque headers as well..
Originally Posted by Raylar
(Post 3268126)
The speed differences here need to be compared based on GPS or speedo and the water type, salt or fresh and how well the propping is being done. Also remember a 525efi will run up to 5400rpm on its rev limiter setting while a 496HO will top out at 5150 rpm with a Raylar kit and no re-programming so the extra rpm available with re-programming and good prop work will make them perform the same. With a good aftermarket header the Raylar'd 496 will give any Merc 525efi a run for its bragging rights. Hey, they are great engines, they outta be, they cost 2-3 times more than a stock 496HO!
We ran a Raylar equipped 496HO in our Laveycraft race boat in 2006-2008 and we actually out accelerated the 525's out of the turns and our speed runs at Loto speak for themselves. As for the weaknesses of the 496, yes a few have broken pistons, many of those supercharged stock blocks but the percentage of breakage will fool you. There are over 35,000 496's out there in our sport versus about 4,000 HP525efi's and the 496 actually has less broken engines from pistons by percentage than the broken HP525efi's in the last 9 years. Lets face it a lot of claims versus real world results on the internet forums are about 25% misinformation,25% stretch, 25% hearsay 25% and actual verifiable results! Best Regards, Ray @ Raylar |
| All times are GMT -5. The time now is 08:04 PM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.