How well does this motor take to supercharging? Will it affect the reliability? What types of superchargers would work well with this motor? Thinking about doing this as a winter project.
dykstra
03-06-2018 06:40 PM
Whipple. A 525 EFI with a Whipple SC is a great package, without breaking the bank.
Sorceress
03-06-2018 07:16 PM
Originally Posted by dykstra
(Post 4614426)
Whipple. A 525 EFI with a Whipple SC is a great package, without breaking the bank.
Was your motor originally the 525 EFI? If so did you have the Whipple SC professionally installed? Also how much MPH did you gain?
F-2 Speedy
03-06-2018 07:30 PM
The whipple 525 kit will make in the 800 hp range.....go to their web site and check it out
7 years and running strong. You can’t tell it’s there. Until you move the sticks...
Make sure you have someone who has done many and knows what they’re doing install it.
dykstra
03-07-2018 07:14 AM
Originally Posted by Sorceress
(Post 4614444)
Was your motor originally the 525 EFI? If so did you have the Whipple SC professionally installed? Also how much MPH did you gain?
No. My engine is a factory Mercury 525SC. It’s old school carb and not EFI.
F-2 Speedy
03-07-2018 07:47 AM
Originally Posted by dykstra
(Post 4614529)
No. My engine is a factory Mercury 525SC. It’s old school carb and not EFI.
That's a 454 correct ? or started life as a 454
Wildman_grafix
03-07-2018 09:04 AM
For the guys that said 5 and 7 years with the Whipple motor, how many hours? For us 5 years would be about 750 hours or more.
I know of people 5 years would be 100 hours, big range.
dykstra
03-07-2018 11:54 AM
Originally Posted by F-2 Speedy
(Post 4614541)
That's a 454 correct ? or started life as a 454
Correctomundo a 454.
Apexwarrior
03-07-2018 03:07 PM
Not sure of exact hours but I’d guess between 200-250 hours..
242LS
03-07-2018 09:43 PM
That is beautiful. Clean.
Young Performance
03-08-2018 12:08 AM
Originally Posted by Sorceress
(Post 4614417)
How well does this motor take to supercharging? Will it affect the reliability? What types of superchargers would work well with this motor? Thinking about doing this as a winter project.
We do a couple of Whipple installs on 525's every year. It is by far the best and only way to go for supercharging a 525. Actually, it's about the only thing I recommend doing to a 525. We have upgraded them in the past to make 650 hp NA. However, they had all broken prior to us doing the work. They had all broke rod bolts, so the entire bottom end was junk. At that point, it made sense to upgrade them to a 540, 547, etc. As a good running engine, you would have to replace so many parts to make any appreciable power gains that it wouldn't make financial sense. That engine is too valuable to cannibalize. And I build marine engines for a living, so I would love to build them. I just can't recommend doing that with a clear conscience. Mercury did a great job of making everything on that engine just good enough to do what it's intended. The heads are mediocre, so is the intake, etc. Even with stoking them and making them into 547 CI, we could only make 650 hp. That's all the intake will allow, and that was with a larger than stock throttle body. You would be better served to sell it and start over. You could build a better engine with better parts and make more power. But, the Whipple is a great alternative. We have done dozens and dozens of them over the years and they are fantastic. I would be happy to answer any questions you may have or give you some numbers as we have been a Whipple dealer for about 15 years now. You can call me at the shop anytime at 615-216-7449
Eddie
twinscrews
03-08-2018 06:04 AM
Listen to what Eddie is telling you, he knows what he is talking about, he is the best in the business.
dykstra
03-08-2018 06:59 AM
Originally Posted by twinscrews
(Post 4614721)
Listen to what Eddie is telling you, he knows what he is talking about, he is the best in the business.
