29 w/500 EFI and a Procharger?
 

I'm thinking of buying a procharger for my 29. I have the 500 EFI. Just curious about a few things. 1) What will this do to my planning ability 2) Gas Mileage?? 3) What type of headaches will I have with this set-up. Any help would be great!

Oh yeah, what size prop should I spin? Thanks

PM hp500s. He had prochargers on his 500efis.

That's me!!!
Bought the boat used and only had them for 20-25 hrs before they were pulled. Some dumbazz has them now! :eek: :drink: . (since I didn't have these long, get other opinions from people with more experience....below are my thoughts)
With the Procharger you will need to run a bigger prop which may effect the ability to stay on plane at low speed. I had the 8 PSI systems and the props were so big (34P) that it would blow out getting on plane so I'd have to be careful then. If you stick with the 5 PSI system you shouldn't have these problems and still gain over 10MPH. Fuel burn on mine (again 8 PSI) was pretty bad. It may have been the fuel curve that it was setup with but I feel like I was getting .8-.9 mpg when I should have been seeing 1.3 with that hull. You'll probably go up 1 size, if your slightly under proped now you might jump 2. IE: If you run a 28 now, you'll likely need a 30, slight chance of a 32.

I have a 01' 35 Lightning that did have 500EFI's with Procharger's running 5 LBS of boost. The boat was pretty fast I never got it exactly dialed in because one motor blew a head gasket and scored the deck of the block. The motors only had 80 HRS when this happened. I would suggest the Whipple kit because they can be tuned more precise and feel they are safer.

[QUOTE=t500hps;2059720] Some dumbazz has them now! :eek: :drink: .


Hey...I resemble that comment! :D

Dont worry t550hps...You will still be able to outrun a FEW single engine fountains...:eek:

I'd throw Whipple into the mix. Ours have been nothing but reliable.

I had a Vortech on my 02 29 with 500 EFI. It hit 86 with a 30 Bravo 1. Search this forum for the build up. It also ran in the low 80's with a 28 Maximus till the XZ let loose. Midrange cruise was fantastic. I still have the Maximus' (LH and RH).

I can tell you that the Vortech is very integrated with the 500EFI and ran good right out of the box. I did a rebuild before the install and I doubt that 500EFI would have survived without head gaskets.

Good luck,

F

Since I don't boat on a smooth lake I'll be able to outrun them ALL! :drink:

Let me ask, What were the planing characteristics after the install? I would love to gain MPH but I really don't want to take 10 minutes getting on plane. I heard the gas mileage on the Procharger is pretty bad because you have to adjust fuel flow for WOT. Is this the same with Vortech?

I think this should get you to the thread.


http://www.offshoreonly.com/forums/s...ad.php?t=72856

The boat planed much more easily with the Vortech with any of the props. I also tried a 32 Bravo which was a little big but still went 80 at about 4800. I think a labbed 32 prop would have been about right for top end.

The Vortech runs like stock at all speeds, just more of it. No excess black soot and mpg seemed aobut the same if you don't get on it all the time. Maybe the idle had a slight pulse to it.

Get a fuel pressure gage. The only problem I had was that the fuel filter actually unscrewed and a fuel hose cracked, both showed on the gage imediately. The guy who bought it from me had the original belt go after about 100 hours.

The whine boss, the whine!

Install one of the new 662 motors and run the hell out of it .