Hey thanks,

Unfortunately I have now burned a piston... The intercooler pickup sucks and is now replaced with a new one I was stupid enough to not gauge the intercooler water pressure:angry-smiley-038:. I will also feed the motor some more fuel just to be sure and start leaning it out from there.
Yes I still have the steel 088 (or was it 188?) heads.

I have a cam from RMBuilder
242º/250º @ .050" / .646"/646" lift valve / 112LSA

You burned a piston, even if thers no intercooler should not have happened, Theres other problems too much boost timeing or jetting. Intercooler are missunderstood they do help and wook well but you cant run a motor dependant on its function. Maby in a perfect world but not in a pleasure boat.

As I wrote in my post I will feed it some more fuel and start from there. The timing is only at 29deg but I just might lower that to 28 as well. We'll see :)

32-34 deg timeing 92-93 square in carbs no power valve it will live forever secret formula but you probaly wont do it ..

I looked at you dyno too much boost drop to 7 and dyno always run rich so when its in the boat its lean .. I have a 55 gall on drum full of pistons you will to untill you learn

I agree with B-Stubb. Taking timing away and adding fuel isn't the answer.

With 31deg timing it was louder on the knock meter, going to 29 did eliminate the suspected knock spikes.

Would you like to explain what makes that secret formula better than the std jetting style with prim, sec and PV's?

Tomas, how is everything going with my old Pantera, havent seen any new video or posts, is Bruces old Pantera still around?

Hi Lukiepal,
I used Bruces old 28 Pantera just one season, 2006. Then I sold her to Pelle in Finland. I Believe he's working on it and she will be back on water 2010 or so. I miss that boat.
The P4-4 are runnig just great. A Bit slow maybe... :D
A funny thing is that we used Bruces old helmets prev weekend on race. Tomas as navigator and me driving, old school classic is the sh*t :D

//Mange

Hey Lukie,

It's going quite well - still lacking some power/speed though, still haven't passed 86mph this summer. :( Hoping to get my hands on a P5X during the winter.

For the moment it's back on the trailer but there's a couple more events it will participate in.

There has been way to much lack of boating this summer - and last... Haven't been in any bigger seas what so ever and that definately sucks!

Thomas, taking timing away from a detonating engine is the correct way to go . I build probably more supercharged engines than most on this site and have no issues with burned pistons. Fuel delivery from pump size, location, fuel line size, filters ect...ect... is extremely important. I thought I had this conversation before. The original tune up we discussed should have been very close if everything else was correct. If there is anything I can be of assistance with please let me know. Thanks again!

Best Regards,

Dean Gellner
Gellner Engineering Marine Power

90mph++ would be nice! :evilb::evilb:

Need to drop the boat from the West bridge central Stockholm to reach that numbers :D

That made my coffee come out my nose! :lolhit:

I would like to see some more pics of that paint job. that looks killer!

You and me - we'll take care of that on the 17th!:drink:

Then I´ll hit the wall, or the floor. :drink::drink::coolcowboy:

DEAN GOT THE TENS UNIT READY TO SHIP, and am looking at a 28 saber in oct with the 3 sutphens and one joker haaha, hey I may have to fly you out here for the install or bring the boat to you so every thing is perfect and pay you of coarse haha. hope you see this later guys good thread.

did you send them the back seat or just measurements for it. if you don't mind whats the cost for the three seats not counting shipping? if you don't mind.

It was a 5-man bolster before so I made a couple very detailed drawing with every dimension imaginable and went to PPI with some sketches and pictures and sat down and wen't through everything. It fits perfectly!

Ive been following the build on this boat for some time. Love the interior. Is the motor back in and running? What was the final top end numbers for the boat ?

Thanks! :)

Yes, the motor is back in and running, didn't use it that much during summer though because of lack of time so it's only been about 600miles or so.

Went for a 70mile ride last weekend but since it was only 40F out (and pretty cold water) the motor was running way too lean above 4500 so it was a very smooth ride.

I will probably go for another couple trips before I winterize the boat, will give it more fuel on the prim's and sec's today to see how it runs.

I got a 85mph run during our Shootout but the motor was detuned by then to be safe, we'll see what the fall brings...

A perfect P4 Class boat dialed in at 85 ;)

Yeep you did :) (@ 0.42 in this clip)
http://www.youtube.com/watch?v=CoZp-...layer_embedded
Some "exotic" boats in our shootout :D

I did 90mph........... :P

Great Job and you also have a geat looking boat...