wanting to super charge 525s
 

:asskiss:what is the best option for super charging 525s and make them live with the most horse power?

I am guessing 525efi Merc's, my 2 cents would be Whipple, do a post in GD many hve done them with very happy results.

what is gd?

GD = General Discussion, and the 525 3.3 whipple is a great way to go, same thing I am doing over the winter to mine with upgrading the motors to 509's. Good luck with your project.

GD= General Discussion, I think a guy had a 38 Hustler whippeled 525efi's got 780 on dyno, but I wouldn't push them that far.:evilb:

Drives?
 

You need to consider your drives as well. More HP is a great thing as long as it doesn't destroy other parts.

Alot of guys make a living rebuilding blown drives. Same guys that gave you more power to start with.

Sell the boat and get one with 700's and #6's

Agree.....that amount of HP will kill your drives, sooner or later, and as we all know that's big $$$$$.

It really depends on the boats length and weight - not just the amount of HP. You can probably get away with doing 750 HP+ in a 35 Fountain or smaller with twins, but try that on a 38 Top Gun and you'll be poping drives left and right.

whipple it!

laszloO1 , when you did your motors who flashed the computer, Set the I.A.C. and T.P.S sensor?? or did you have a scan tool??

well keep in mind you don't need to set boost to 700+ HP onw could choose to set 3lbs probably around 640hp, and the drives should live, maybe a little longer:ernaehrung004::cool-smiley-026:

the boat is a 42 poker run im looking at with 525efi's with bravo xr's, does anyone know what hp rated the drive's are and if they will live max'd out?:asskiss::hitfan:

Most likely bump to sportmasters to handle the new power.

XR comes standard with a 600sci, so you should be fine up to around 600-650hp:ernaehrung004:

I have a 38 with 600s ITS sportmasters and lost 2 uppers in 125 hrs the 42 pokerrun should weigh about the same. That sounds about right no more than 650.

Whippled 525's work awsome! HTG Marine on Grand Island,NY can install and give you a turn key package...tuned , propped and dialed in if that is what your looking for. It takes 1 week...don't miss a weekend! Check it out at www.htgracing.com or email at [email protected] We have 39 Velocity ,40 Baja and 32 Sunsation with Whippled 525's....no problems. Can also make you a nice deal on kits if your installing yourself.

Do a search on 42PR drive issues.

They have a rep for being hard on drives with stock 525's, I think your asking for trouble putting more power to them.

Maybe look into upgrading to Teague Platinums or the high end Imco, if you want to spend the $ , re-rig with #6's.