halfgassed

Looking for some input from both sides of the fence. I'm finally starting to collect parts for my engine build, boat is a 90 38 fountain fever with 454 mag carb motors. I recently had all the vinyl redone so I do not want to cut up my sun pad for blower hatches or scoops, thus the reson for the low profile blower shop 250s' or prochargers. I want to end up with intercoolers which makes me nervous about the assembled overall height of the TBS250/intercooler/carb/spark arrestor. Does anyone have a similar combo that has a measurement I could compare to on my boat?

Do the prochargers whine as much as the your typical roots style blower?

Also looking for input from owners of each setups, pros/cons/would you purchase again? etc/etc/etc

Thanks
matt

corey331

ProChargers won't whine like a roots blower. You'll hear them more at idle making a whistle sound, I kinda dig it. A guy I know has a 32 Fountain with twin hp500's that he put 250's on with out coolers. If I remember right, there wasn't room for them. But the boat ran really really well without them. If I remember right, he was pushing 100mph.

CDShack

Matt, go on Youtube and there are several videos of racecars and offshore type boats with Prochargers. They rattle a bit at idle, but still have a distinctive cool sound I think.

(I also have two Procharger Carb boxes if you need them)

SB

iTrader: (1)

I don't like the Procharger Rattle / Whine / Ding Ding Ding a ling ding ding / at idle. Sounds like loose bolts, nuts, and washers and something's ready to fall off. Drive's me nuts.

CDShack

I think it's an acquired taste! haha! (I switched to turbos!--all the whine, no rattle)

ACrooks69

iTrader: (1)

I agree with you SB, I don't care for the sound of the gear mesh at idle, but I don't mind it as the shaft speed increases and the audible gear mesh frequency get higher.

paul buckner

Here's my dealings with procharger (ATI)this was not for a boat but a car not that this should matter.
P600 didn't make the boost they claimed parts of kit missing and and intercoolers different from what I ordered ,
They did send missing parts after hours on the phone .
Motor needed more boost so ordered a D1 from a agent not self contained this leaked oil from day one sounded like a bucket of bolts at idle , it did make the boost they said it would .
There was always a pool of oil in the inlet neck which got worse so I decided to take it apart .
Found best part of a tube off JB weld where the oil seal fits , and the hole they machined for the seal was to deep and left 5 thou of alley left to hold the seal in which fell of when the seal came out .
Called them up and the tried to tell me that the dark grey stuff I was looking at was silicon and denied they would use JB weld , finally they came clean and said it was JB weld and only used it on some of the head units when the casting came out not too good .
I am guessing they never though any one would take it apart .
I have kept the emails from them and took pictures of the mess .

ezstriper

Ran a M3 for 5 seasons, not a single issue, but I did my research and set up the fuel system correctly and had very little noise with hatch closed, no where near the noise of friends 525SC's

MILD THUNDER

iTrader: (3)

You'd probably be better off clearance wise, heat wise, simplicity wise, power wise, and cost wise, to stick a couple 420 or 8-71 blowers on , without intercoolers, rather than the 250, with intercooler.

MILD THUNDER

iTrader: (3)

I did have 250 B&M blowers, and stock hatches on my 38 Fever. The hatches needed those dog dish style inserts to fit the flame arrestor, but the top side of the hatch/upholstery remained intact. Being that my boat has SSM IV drives, the engines are prob mounted lower than yours though in the hull.

I have molds for these in case you wanna do some race hatches. You can still lay across them with a towel if need be.