I haven't laughed that hard in a long time...Thanks!

I put a few tanks of terribles 100 octane in the boat when I was at parker, and read the plugs - it was a hair on the richer side deemed pretty close to perfect. ran well.

After playing in parker on memorial day, the following weekend in havi, I still had one tank with some 100 in it, but put 91 in both tanks at fill up. Basically one tank with a mix, then one tank with pure 91 (AZ gas).

The next morning, I went out for a tune. I lost a little more than 350 rpm, with nothing else changing. Reading the plugs, it looks a little lean now.

I am wondering if it is the octane, or possibly oxygenated gas causing the issue. This is the first time I've tried to run anything but pump gas, just wanted everyone's opinion.

I'm gonna be there - where to stay? I don't want to spend 100/night !

Are there available campgrounds around there?

Yea, I only ran the boat Sat morning / late evening and Sunday night. Too many people otherwise... Oh well Havi next week!

I'm dying to know what's in the moo for an engine.

OK, now I'm looking at putting a set of turbos on the BB Mopar in my boat.

Can you run those with an engine cover? I've never done a turbo motor before (let alone in a boat), but it would seem like it would make the most sense from a log manifold perspective.

Nothing beats a 8-71 for visual, but a flat cover with a turbo sounds pretty awesome to me.

Do they have water cooled turbos? Fire is not my friend. Ebay has turbos pretty cheap, and it would be pretty easy to plumb them up.

Anyway I'm just toying with the idea - thoughts and comments welcomed.

To really adjust the mains, you need to see what MPH / RPM you get at WOT and adjust for max.

If you are trying to find a balance between milage and performance, leaning the primaries while bumping up the secondaries is acceptible (but won"t give you as much power as if a 4 bbls were ratio'ed the same).

I notice on my engine, I cruise around with 9-11 inHG , so by me having a 6.5 PVs in there, it is (intentionally) lean at mid throttle. Unless the carb is super lean, the PV should have nothing to do with throttle response, that is the job of the acc pump(s). In tuning my engine BTW - I needed the smallest pump cam on the smallest pump setting with a very large squirter (.40) to get the throttle response great without bogging.

You typically size the PV's according to engine idle vaccum. I pull 10 inHG at idle - so I need to run something about 2 inHG lower (at a minimum) to be right - the 6.5's are the most common size so that is what I used. The factory 8.5's in my 9776's were marginal and showed when I came off plane and the inHG dropped to 8 ish - the PV's opened dumping a ton of gas in like I was at full throttle (because that is what the PV's thought), and killed the engine. The 6.5's eliminated the dreaded off plane engine stopping along with a bit more fuel on the idle screws.



 

OK, so is it safe to go yet? IE, I don't want to be the only one there. Need to see some nice talent!

I know I'm late to the discussion, but one fact to consider is the RPM range. While a specific carb may make more power on the dyno, you need to be careful and look at the RPM it made it at. If the engine makes 75 more HP but it was 1000 RPM higher, you may not be able to use it.

Also, when looking at carbs, the intake style plays a big part. A stock 454 with a dual plane may like a 850 best, but throw a single plane on the same engine, and it will probably perform better with a 750.


Once you start getting into large cams and such, your airflow requirements can go through the roof, but you also have to turn the rpm's too. Jets have the handicap of the hard stop rev limiting impellor unlike cars that have nothing to really limit the RPM.

IMHO - Sleeper you need a bigger carb than 1250 :-)

My 528 is running 1660 CFM, and it is under carbed. Usually if you have to jump more than 5-6 jet sizes up from stock, you can gain more by switching carbs.

Hey guys,

Im looking for a 1310 style U joint that can be seperated in order to run the engine off the hose. I have one right now but I dont trust it, and its cant be seperated. Does anyone have one in good shape theyd be willing to part with?


Andy

Maddog, drive down to mission viejo and have drivelines unlimited redo it. I spent a whopping 60 bucks and I have a like new shaft that is really smooth (had it on the lake for the first time yesterday).

After sitting all winter, being abused due to engine swaps, santa anas, etc; I need a really good cleaner for my interior to get it back into the new shape it was 12 months ago.

Are there any good seat cleaners out there? I also want to scrub the carpet - any advice?

The distributor is in the correct location 

Yea, for a V-drive!

I need to go this afternnon to see if I can make a trip to havi this weekend....