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-   -   Cam choice (https://www.offshoreonly.com/forums/general-q/363750-cam-choice.html)

phragle 11-05-2019 05:15 PM

Custom Bob Straub 7/8 race grind with the even/odd cylinder swap with 3.14159265359 degree advance.

jdf4068 11-05-2019 05:43 PM


Originally Posted by GPM (Post 4713768)
What are your plans for the boat, how are you going to run it, towing skiers, cruising or a lot of wot ? what exhaust , what intake, carb or efi ?

to answer your question,,,cruiser 89 scarab 3. Has dual plane now ..going single for sure,,,exhuast is gill offshore wet style ..ard 5500- 5800,,, props are hydro 4 blade 27 pitch ...bravo drive 1.50 Does this help ?

jdf4068 11-05-2019 05:44 PM


Originally Posted by BBYSTWY (Post 4713767)
Comp custom grind...ran it in my motor for 8-9 hours...nothing wrong with it at all just going a little bigger

Its a flat/button nose cam

If you're interested PM me...was gonna throw it on here once I get it pulled which should be this coming Saturday.

i might be. Then i could have another made ,,,

phragle 11-05-2019 05:45 PM

Belt driven intake manifolds would really wake it up.....

jdf4068 11-05-2019 05:45 PM


Originally Posted by sutphen 30 (Post 4713759)
3/4 race cam for sure.:D

naw dawg. Let’s go full race deal ,,lol

GPM 11-05-2019 05:50 PM


Originally Posted by jdf4068 (Post 4713775)

to answer your question,,,cruiser 89 scarab 3. Has dual plane now ..going single for sure,,,exhuast is gill offshore wet style ..ard 5500- 5800,,, props are hydro 4 blade 27 pitch ...bravo drive 1.50 Does this help ?

Did you do any port work on the heads

compedgemarine 11-05-2019 06:08 PM


Originally Posted by sutphen 30 (Post 4713759)
3/4 race cam for sure.:D

had an old timer at a car show once ask me if I had a 3/4 cam in my motor, I said "no, I put the whole thing in there". he didnt seem impressed with my answer.

jdf4068 11-05-2019 06:21 PM


Originally Posted by GPM (Post 4713779)
Did you do any port work on the heads

no not really just cleaned up a few spots ...123 cc

GPM 11-05-2019 06:59 PM

What compression ratio

jdf4068 11-05-2019 07:09 PM


Originally Posted by GPM (Post 4713794)
What compression ratio

9.5


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