Brembofreak

Today i do some work on the engine! A friend make me new bigger waterinlets for the intercooler!
Also i get an orginal new set CMI Silentchoise diverters for my engine!CMI build very well with real rear watermixing and an tubular ring in the front at the flange.A bit like the plate under the 496 risers.
After first check about size from the diverters and the endtipps in my boat,i realize that it will not fit together.My tipps over one inch higher and over one more out every side.
So i think some times and bring my boat to my gealcoat specialist.he colse the holes from old tipps and after mount the engine and aliegned,i will drill new holes,fitting to the cmi diverters!Problem is that they all build for old bravo setup with 502 and so! but in my boat was orginal and 496 and endtipp are there higher on transom.
michael

Brembofreak

F-2 Speedy

iTrader: (6)

looks real nice...........

Brembofreak

Ready!

Brembofreak

The first supercharged season go slowly to an end here in germany!
To adjust the engine with the driveguardian was very strange and work only with an orginal drive shaft! The alignment must bei absolut perfekt with the DG or drive will not fit.
I make 50-60 hours without any probs on the engine.Best speed see 81 mls,but with some tricks!
I take all weight in the front cabin out for this! bed and all hardware that can be take out! Also the subwoofers and ampliefer! Near 80 kg! Normal speed ist 78-79 mls in freshwater.
My problem is missing hydraulic streering now and maybe big tabs.At topspeed the 275 beginns slightly to pending from left to right and you must get off the throttle then.
With loaded boat in holiday,cooling box and 2 pallets beer and so the boat runs very stable and no chinewalk but only 75-75 mls.

I have add an custom made alloy tank for shower,sparepropholder,new selfmade carpets in blue(want to make the boat more blue in and outside over the winter).Some Blue leather in the cabin!
I try next step now to find an ITS box or maybe an Add-On steering.
Here some actuall pics!
Michael

Brembofreak

Small update!
At end i have test and Hydromotiv P5-X in 28 and love this Prop.Only 1-2 mls slower that the 28 Bravo.
For next season the Bravo has now an Lab from only known comany in europe that can do it good.
I work now on the cooling system as i try to make it a bit effectiv that standart is!
A Sportmaster -2 lower is on way to me in 1,35 with set new gears in 1:50. I will change gears and maybe podercoat the lower.
For more water throug the headers,i have an plan but not 100 & shure what way is best!!??Backboard header allways a bit hotter then other sider!Get a bit brown on top tube only on warm saltwater.
I like to use the Waterpickup from the Sportmaster,as all say it make much more water in the engine!
Then i like to have stage 2 hardin pump with one intake for water and seperate outlet for IC and engine!
My silent coice from cmi have restrictors in (9,5 and 10,5mm)that i can open if waterpressure go to high with the Sportmaster.
What your suggestions to this cooling??
Or is engough to use only hardin stainless housing on seawaterpump,reroute the IC with an T after the pump? Or feed IC direct from seatrainer??
Many options????
Michael

articfriends

iTrader: (1)

I'm curious how the 1.35 gears run/work. At one point my 2000 272 Baja ran 99.5mph gps (took ALOT of hp to get there).Using 1.50 gears it turned a 32 labbed bravo 4 blade to get there at 6000. With my everyday pulley setup it ran 95/96 turning a labbed bravo one 4 blade 6200/6300. So I decided to try 1.35 gears with 26,27 and 28s, boat seemed less responsive and couldnt quite run its normal number, I switched back. I also put a -2 lower on at one point, boat did not like it and was very dangerous BUT I was running much faster than you, I think when you get into the 90s the boat rides so high out of the water anything you do to raise drive causes problems.

Brembofreak

Thanks for your feedback articfriend!
By the way,i want no ,135 lower,but it was as it was, but seller give me a set new gears in 1,50 with it! so i will use the new 1,50 gears,as at moment my props are real perfect for the setup.
28 bravo lab and and hydromotiv P5-X 28 from BB with lab.So will not test with 1,35 as then need again new props!
Also i will not add more power to the engine,because i want to use it some years and its enough! How much HP you need for this Speed???
I will only add ITS Box and the shorty on it and hope to make the rides a bit safer! Try to get it in the 80 + mls and thats ok for me! So i try to look for bit better cooling system to make it more stable!
What happend when only mount a little smaller pulley for short test on the charger without changing the PCM??? I think this work not or????
Michael

Keith Atlanta

Do a test of 1.35, 1.5 and 1.65 to see what your speeds are. All the new Bajas come with 1.65's. I suspect Fountain is finding speed with the 1.65 setup.

Brembofreak

Hmmm,i have no props to test and my will not work! Now is winter and time to take lowr in parts and powdercoat.Ideal to check bearings and rebuild with new seals.I will complett then with new XR upper.Thats the ground why i want not add much more power.Hope that the Xr stay long as i also have add an driverguardian.
Maybe 1,65 will be a good way,but 1.35 is other turn.
Here in Germany is it not easy to find big Prop for tests,as not much boarts with more than 496 run here.
Michael