Offshoreonly.com - low compression 548 dyno testing has begun!!

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - low compression 548 dyno testing has begun!! (https://www.offshoreonly.com/forums/general-q/344612-low-compression-548-dyno-testing-has-begun.html)

Quote:

Originally Posted by articfriends (Post 4546024)

IF i had a 38 AVS they would be a good bolt on having 3 feet between bulkhead and motors, this 15 or 18" though, no way. Everytime i wanted to do anything it would involve tearing all kids of stuff out, engines sit way lower in this boat than my baja. My son who works for me INFORMED me if i decided to put them in I'm on my own as he doesnt want to endure the pain either!

Sorry to hear about your first world struggles. I will gladly do you and your son a favor and take them off of your hands! I am just that good of a friend to consider doing this for you....haha!

Quote:

Originally Posted by Gimme Fuel (Post 4546025)

Sorry to hear about your first world struggles. I will gladly do you and your son a favor and take them off of your hands! I am just that good of a friend to consider doing this for you....haha!

Guy who bought my 272 wants us to install and tune one on it for him this spring, i have one scattered in parts but i bought ceramic bearings for it and need to put it back together

Quote:

Originally Posted by articfriends (Post 4546000)

Id put some low boost prochargers in my scarab (i still have 2 m3sc's and aw 504 innercoolers) but im getting too old to contort my body around in bilge, squeezing all that between backseat and engines would suck donkey balls, i will buy whipples first if it ever comes to that.

Hmmm I have space ... lots!!

Quote:

Originally Posted by Full Force (Post 4546039)

Hmmm I have space ... lots!!

And probably 1/2 the size of articfriends......he isn't the smallest of people. :)

I can totally see that. A buddy of mine has a 33 avs. I remember looking in his bilge one day at the docks, and immedietely thought " i do not want to work on that thing "

Awesome boats, but man , they are tight in the bilge. There was one out on west coast for sale, with #5 drives, that had to be really tight with trannys in there.

Quote:

Originally Posted by MILD THUNDER (Post 4546047)

I redid my interior last year and converted my hatches to split double hatches with rams on sides, that got rid of that huge ram in middle, now i can squeezein front of motors if needed. Mounting innercoolers though in that area would use up all the real estate. Offshore excursion told me to put them under back seat but bulhead has about everything from boat mounted on it on aluminum diamond plate, would be quite the project, not even sure if i attempted it thay innercoolers would fit under back seat, not condidering it, my speed goal is only 95 to 100 mph, boat already runs 84/85 with stock power so no reason to boost it to 1000+ hp

Quote:

Originally Posted by articfriends (Post 4546000)

Whipple port Injection intercoolers with your prochargers......Problem Solved!

I have been watching this thread a lot because I have been working on my low compression 500/540 efi

was a 540 short deck , 8.48 to 1 , 525 efi cams , dart 345 123cc heads , 500 efi intakes . guess of 550hp

now with a little work .

no with the same shortblock , 540 upped compression to 9.74 because of milling heads from 123 cc to 116 cc and gaskets from .53 to a .41 . cams swapped to a custom grind from comp , intakes from efi 500 to a single plane and a 4150 quick fuel 1050 cfm . dyno tested 710 hp now !

Kennyd, could you post the custom cam specs you used?