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-   -   Scarab 29 repowering (https://www.offshoreonly.com/forums/scarab/187005-scarab-29-repowering.html)

MalteseScarab 05-19-2008 11:03 AM

Scarab 29 repowering
 
Hey everyone I have a Scarab 29 with twin 350 Magnum with Bravo drives I currently run around 70mph.

I currently taking part in some boat races and I need more HP and I am not sure whether to put prochargers on or replace my 1996 350 magnums with the new 383 stoker engines rated at 350hp (by the way is it possible to put the 383 scorpion rated at 400hp or it can be used only on ski boats).

I would like my engines to be around 400hp which I think should push the boat in the 80 to 85mph range. I am worried whether to prochargers can do the job and keep my engines reliable.

Thank you

tssteph 05-19-2008 12:07 PM

1 Attachment(s)
I had them on mine for 2 years with zero problems. nice addition to the 350 mag setup. Ran 80 in ideal situations and was very fuel efficient. very tight to install. But then again anything in a 29 scarab engine room with twins is tight.

hunster 05-19-2008 08:35 PM

I think the 400 hp 383 is set up different for inboards. Met a guy last fall that does the quicksilver remans and builds the 383's , thats kinda all he would tell me. They are / were working on some higher hp ones he mentioned though .

MalteseScarab 05-22-2008 12:11 PM

Thank you for the information. I just been with Procharger on the phone and told me they are not sure if the system fits my 350 since they are from 1996. Does anyone know what is the difference between my 350 from 1996 and those from 1999?

My top cover are like those of the 502efi with the intake on the left hand side? If anyone have any pictures with 1996 350 mag procharges please let me know they will be very helpful?

Thank you

tssteph 05-22-2008 12:17 PM

Send me the pic with the cover removed and I will tell you if it looked like my 98's. The merc web site part ordering system may help you out.

MalteseScarab 05-22-2008 12:45 PM

I am trying to post an image but cannot do so as I am only a registered member and I cannot upgrade as I am outside Us.
My engine are exactly the same like the P29 do you know any of those procharged.

MalteseScarab 05-22-2008 12:50 PM

There is a Scarab 29 for sale on offshoreonly the 4 advert advert no 22746 my engines are the same.

tssteph 05-22-2008 01:55 PM

Those are very different then my 98 was.

BY U BOY 05-22-2008 02:46 PM

There are some 6.2 that will be 530 hp and about the same tourge that will be availible soon.:D

Scarab28Germany 05-25-2008 04:52 PM

Maltese Scarab
Upgrade not posible Why?
I´m from Germany and it was very easy

MalteseScarab 05-26-2008 12:13 AM

Is it possible to send me some pictures of your engines I do not know why the guy from procharger was not sure if they fit.

By U boy which company are these engines will be available from?

BY U BOY 05-26-2008 09:58 AM


Originally Posted by MalteseScarab (Post 2569722)
Is it possible to send me some pictures of your engines I do not know why the guy from procharger was not sure if they fit.

By U boy which company are these engines will be available from?

Marine Power is marinizing the new corvette engine. I know there is a few guys testing them out on the racing circuit. I'm not sure on a date that they will be comming out but sounds like a good package.

ECeptor 05-26-2008 11:04 AM

Isn't Raylar developing a 550hp all aluminum small block 427? That would be a huge jump in power along with a significant reduction in weight. You would be both more efficient and faster. Not sure the cost, but likely not cheap.

trc2 05-27-2008 04:45 PM

Good luck with the repowering make sure you use a good shop that can do the install right I'm having a hell of a time with my engine redo I put on new heads and the 5 psi pro charger and its still not right yet started in January

tssteph 05-28-2008 07:05 AM


Originally Posted by trc2 (Post 2571407)
Good luck with the repowering make sure you use a good shop that can do the install right I'm having a hell of a time with my engine redo I put on new heads and the 5 psi pro charger and its still not right yet started in January

What problem are you having?


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