With those pistons and a 106cc head chamber it should be 1.25:1 compression but he's running 427 vette heads with a 101cc head chamber so were still not clear on the compression ratio. Any body have any ideas on what the true ratio would be? We need to know so we put the right fuel in it!
what's this going in?? race boat???
All I can say is that I hope so, it would be nice to have another boat running circles.
[/quote ;D
That looks real sweet.
Now do you know if he has the stuff to do a Holley 950 3brl vac sec carb.
I have one I would like put but in working order.
Thanks
Jim
Pr Comp roller rockers by the way...
rod it looks good ;)
just a couple of things though, turn the scoop around and your oil filter lines they are under pressure sooooooooooooo, i wouldnt want the hose clamps to fail and drain your pan before you noticed. what size are the lines. please reconsider with better lines.
jmho ralph
it looks sweet rod hey it dont matter where the bottle sits its under big time psi just make sure to keep the nose of it up a little bit and put a heater on it get the psi up even more so it flows better and on the silinoids put them on the sides of the carb the gas on the gas side and the nos on the opisite side :)
I ain't racing (yet) so there's no need to turn the scoop around.As a side note , USCG say that all scoops are to be turned backwards . Just thought I'd throw some useless info out there .
The line's are the buyer's remorse part, pics in a few days. 8) O0
As a side note , USCG say that all scoops are to be turned backwards . Just thought I'd throw some useless info out there .
-beerjet-
As a side note , USCG say that all scoops are to be turned backwards . Just thought I'd throw some useless info out there .
-beerjet-
My gas pedal/carb linkage isn't returing all of the way to idle. Is it normal to need a throttle return spring at the carb on a jet boat?As a saftey measure , I have the dual spring at the carb and the throttle pedal has a pretty monster duty one as well. Thats not one place I want to have a problem with .
I got a matching PCV for both sides of the engine and ran a T into the carb. Rubber hose.
Hotrod, you are going to want to eliminate the second PCV valve. For the PCV to work properly and actually ventilate the crankcase, you want a breather on one cover and PCV on the other.
...
... If the stripped threads are on a GM style starter, just replace the solenoid, but use a quality one(like AC Delco). You might also check with the local GM dealer to see if they still supply the low tension return spring for the solenoid plunger. It requires a little less current to actuate the solenoid, helping to prevent "hot start" problems.
My carb guy recomended that I do that with the PCV's. He's been around the racing scene a long time. I'll stick with it unless it causes me problems. Why do you think it will be a problem/not work properly? Thanks.
Depends what he is trying to accomplish. Without a breather, no fresh air will circulate into the crankcase, meaning no fumes will be drawn through into the intake. Hence, no ventilation and the benefit of a standard PCV system won't be there. I can only assume that he is suggesting it as a "poor man's" way of building crankcase vacuum which is usually done to assist in ring seal. Not sure how much benefit there will be as the manifold vacuum in your boat engine at pretty much any speed above idle will be quite low. In a car, things would be different. Not saying his idea wont work or will cause problems, just kind of question its effectiveness.
...
... I was doing some more reading in this thread. Saw your issue with the head studs. Did you get that figured out? Did the nuts torque properly without bottoming on the threads of the studs?
Did he ever explain what it was they were doing or why he used them? Just curious to know what area he was looking to for performance gain.
If you talk to him again, could you ask? I have some ideas as to the why of it, but I like to see if I'm right.
...
About the ProComp studs......If I have the story straight, they are Chinese-made knock-offs of American designed/produced products sold to us by way of an Australian company(to make it not look as if it is Chinese)
That is a pretty big mis-match, but it also looks like you have about a foot of run from riser to tip. Hose should work. If you decide to go with pipe, you would be better off using stainless. Gets pricey, tho....
since its pretty hard to tell from the pictures.... (since I have not seen it in person)
is one side further off then the other side? or are they equally off set and you just created 2 different pipes?
well?
boats come first, get your priority's in order. lol
where are you going this weekend? the outboard is still there! ;D
Boy... you've had your share with this boat haven't you? It's all basic stuff and I'm sure the no spark issue is gonna be a very simple fix.
I really wanted to just say congrats on your daughters graduation! Ours did the same on Thursday. She's off to Chapman college at the end of the summer. 2 in college now and one still in middle school.
what i did was put a test light on the neg side of coil and crank the engine and it did not pulse so no spark. after the repair it pulsed like it should
I am sellin some wheels if anyone is interested...Looks like this guy is trying to jack your thread >:D
I am sellin some wheels if anyone is interested...
I am sellin some wheels if anyone is interested...Now that is some FUNNY SHIZNIT right there.. :o ;D ;D LMFAO!
... I wish I had opted for a having a professional do mine now, but then again I have learned a lot about my engine...
... Hang in there Hotrod...You'll be in the water in no time!! ;)
1 8 4 3 6 5 7 2 I've had it memorized for about 29 years.
I thought that a machine shop did your long block, no?
Yes, I had all the machine work done at a shop, but I did all the assembly myself. I was mainly referring to the valve kissing piston problem I went thru.
Yeah I will, with an outboard! >:D :DYou said it best...........Ohhhh the IRONY!!!!!!!!!!!!!!!!! :o :o ;D
I am sellin some wheels if anyone is interested...What kind of wheels ?
What kind of wheels ?
-beerjet-
They are old school Cragar SS's, but they only fit boat trailers for boats with outboard engines. Sorry Beerjet. Hey, I heard you were looking for a tandem trailer. >:DYup ;)
well lets see the 460 doesnt need sealer around there big ass head bolts, cant put a small block flywheel on big block, yup i'm convinced i'll stay with the ford. :o
just bustin your chops rod
I thought they would all have a vaccum leak ??? I figured that one out the hard way .
FYI: if you've got a BBC with oval port heads and you're using a rectangular port intake manifold you need to use the rectangular port gasket set otherwise 6 of the 8 cylinders will have a huge vaccuum leak.
I think I'm going to puke. :P
Tomorrow I'm dropping off a deposit to start the engine's rebuild. It isn't on schedule to be finished for a couple of months due to finances. ;) I don't want to dump this boat.If you "dump" it . Make sure it at my house !
Everyone is paying like they should on my eBay sells so it looks like I can call my engine builder tomorrow and tell him it's a go...
Hey Ralph, what's your guess (dyno'd?) on the HP in your race boat? 650-700??500 >:D
500 >:D
if you think about it i turn 5200rpm coming out of the corner then back off to 48-4900 rpm down the straight this is with a berk a aluminum impeller, and the pump was done up by jim brock. so if you look at the impeller chart, you tell me how much hp im using :-\
the boat is faster than i run it,
i'm no expert but i dont think the pump being set back does'nt have an affect on the rpm.Set back adds to the stability . Not rpm.
Set back adds to the stability . Not rpm.
-beerjet-
Damnit, if anybody needs stability it's me... :DIf I was you , I'd be a setting back fool then . :D
wtfwlmfao ;D
Was it about that slow ass miller?
I still dont think to would! Even if I just ran one motor ;D
yea, but kid boat in slip porp did too. ;)
Rod needs "hooked on phonics"
We're learning a lot on this thread of my Rogers build aren't we...That Roger's never going to see the water, Your going to sell it first!!!!!!!!!
We're learning a lot on this thread of my Rogers build aren't we...You should call this thread "One step forward and a slip and a tumble down a steep hill back ." ;D
You should call this thread "One step forward and a slip and a tumble down a steep hill back ." ;D
-beerjet-
Why dont you go drink some more! Oh ya, I get the Key!!!!!
just sell the fucn thing and get a v-....
shit i'll have my tahiti done before he even gets close, and i dont even have it yet :-\
there was a '18 Tahiti on craigs last night w/ a 150 hp Merc for FREE!! needed upholstry and carbs cleaned out
We're learning a lot on this thread of my Rogers build aren't we...
already have a family boat and have zero interest in getting a second one. (i.e.: my boat isn't going to have an outboard.)the only boat you have that runs, is an outboard boat. Wait you dont have a key for it!!!! ;DLMFAO! Good one Klesh! ;D
Depends what he is trying to accomplish. Without a breather, no fresh air will circulate into the crankcase, meaning no fumes will be drawn through into the intake. Hence, no ventilation and the benefit of a standard PCV system won't be there. I can only assume that he is suggesting it as a "poor man's" way of building crankcase vacuum which is usually done to assist in ring seal. Not sure how much benefit there will be as the manifold vacuum in your boat engine at pretty much any speed above idle will be quite low. In a car, things would be different. Not saying his idea wont work or will cause problems, just kind of question its effectiveness.
I was doing some more reading in this thread. Saw your issue with the head studs. Did you get that figured out? Did the nuts torque properly without bottoming on the threads of the studs?