Project Mooooooooo.........

« **Reply #200 on:** April 05, 2009, 01:38:20 AM »

I was kidding boost, sorry, didn't see the connection you were making on the vac secondaries until I reread that. My bad.
Hoping I don't have that problem, we'll see!

Thanks,

Ray

« **Reply #201 on:** April 05, 2009, 04:32:49 AM »

Quote from: boost on April 04, 2009, 07:58:50 PM

Will the vacuum secondaries work, I'm just saying with my motor they wouldn't open up all the way,the motor wasn't making any vacuum do to the cam.

Vacuum secondaries open when the velocity of air flowing through the primaries reaches a certain rate. With two carbs and a high duration cam, the secondaries would not open completely because the velocity of air flowing through the primaries was too low (low vacuum). IMHO you should be running smaller vacuum secondary carbs or using mechanical secondary carbs. A simple way to increase vacuum signal is to add 4-hole under carb spacers...they's cheaper than new carbs...

Run it and see what happens

p-jet

« **Reply #202 on:** April 05, 2009, 05:03:56 AM »

That's my plan. You and Boost could very well be right on that! Gonna take some convincing to get my son to stick his face into the carbs at speed on this thing to see, tho. But I may be able to sell the idea,

But I figure if they don't open all the way, it's over carbed, maybe, You guys have me re thinking this.

But that shouldn't be a big deal as long as it performs to 5000 rpm like it did before (Starving, but it did it). Hoping it will keep going to 6000. If need be, I'll convert them over to mechanicals. But was hoping to avoid that. Again, we'll see when it hits the water.

I think I upset boost by not understanding his post and being a smartass about it. We weren't even discussing the Vac Secondary issue, and I didn't understand. Leave it to me to put my foot in my mouth! Sometimes what sounds funny in my lil brain doesn't sound funny when you read it.

Trust me, I value everyones input on this. I ain't a pro.

Ray

« **Reply #203 on:** April 11, 2009, 06:56:50 PM »

OK, Been awhile since I updated everyone on this whole deal. Got the fuel lines ran, then redid them again a couple of days ago with real AN6 fittings and hose (Might be small, we'll see). But got it fired! Was hesitating, but after simply firing her for 3 or 4 seconds, 3 times, she idles at 800 rpm! Something she couldn't do with 1 750 carb.

Got some routing issues with the plumbing now that I have to fix before the engine cover goes back in. One wants to run on the crank, the other too close to the alt. Should be able to get the engine cover back in complete with dual remote filters that I HOPE will lower the Oil pressure. What size AN fitting fits the Bassett T valve? -10 or -8? I think I can solve that one with that, a -10 or -8 AN to 1/2" MPT 90, the other one needs a compression 90 to 1/2" FPT. Problem solved without going to all Braided stainless and AN fittings right now. (will eventually, this thing has cost me enough thus far, and is working fine).

Ray

« **Reply #204 on:** April 11, 2009, 06:59:14 PM »

I guess theres more than one way to skin a cat....Huh?

« **Reply #205 on:** April 11, 2009, 07:54:08 PM »

« **Reply #206 on:** April 11, 2009, 08:06:32 PM »

Thanks Terry, As I've said before, couldn't have done this without you. I think you knew this was possible all along tho. My lil brain kinda worked overtime getting the carbs mounted this way, but wow, does it look sweet like this (Not as sweet as your Dominators over an 8-71 huffer, but still sweet).

Thanks for the info. thought they were -8. Didn't want to order fittings and have them the wrong size,

The braided lines I got with the headers seem to be -6 with -8 fittings on them. Weird. No I did not weld the weep holes (Thanks Nordie), lol. Gonna order a few fittings and some -8 braided to start to clean up this plumbing this week. Taking BOTH boats out next Sunday!! Gotta see how well this setup works and get a GPS on it. All indications are the intake swap went smooth.

FYI, when putting a Weiand Tunnel ram on a BBF, don't use the front and rear seals with the intake set!. RTV. They don't tell you that. Also used the race "pan" that was under the RPM, so two layers of RTV, but it still worked.

Ray

« **Reply #207 on:** April 11, 2009, 09:35:14 PM »

I think that pan is to keep hot oil off the manifold, my last boat had a tunnel ram and it would frost up at 108* outside!

« **Reply #208 on:** April 11, 2009, 09:48:37 PM »

Uh oh, lol! You Kill me!

Ray

« **Reply #209 on:** April 11, 2009, 09:55:53 PM »

I'm not kidding, ask the ole lady, that thing would frost up and have condensation running off it.

« **Reply #210 on:** April 11, 2009, 10:04:25 PM »

Check it out

« **Reply #211 on:** April 11, 2009, 10:21:12 PM »

Hey Ray at least you have your dizzy at the right end LOL

« **Reply #212 on:** April 12, 2009, 04:04:50 AM »

Quote from: HDriderTH on April 11, 2009, 09:55:53 PM

I'm not kidding, ask the ole lady, that thing would frost up and have condensation running off it.

Maybe I shouldnt'a put the pan back in. It didn't seem to do much with the RPM intake? 'cept hold some of the milkshake back, lol. I guess we'll hafta see. I plan a lot of seat time this summer in it, so we'll find out! No diverter, so you and the 'ole lady' (She'll beat ME for saying that) are safe riding in my wake at Echo Bay. You can check for frost then, lol.

Quote from: 76NORDIC on April 11, 2009, 10:21:12 PM

Hey Ray at least you have your dizzy at the right end LOL

Does make it easier, but in all honesty, clearance wouldn't have been an issue had the dizzy been on the 'wrong' end, lol. And I coulda ran my Comp 9000! But it does run sweet! Did the same thing with it after resetting everything and reindexing where #1 starts, get it to true TDC, back it off to about 10 degrees BTDC, tightened it up. She fired first try (After the fuel bowls filled up).

Funny thing was, ran the llines like I did so it would line up easily for a rear mounted electric Holley Black pump I got. But the fuel pressure at idle off the mechanical was 7 psi? Might not need the electric after all.

Ray

« **Reply #213 on:** April 12, 2009, 08:47:39 AM »

No your ok, motors like cold air. You see the frost on that manifold? You wanna find out what the pressure is at running speed. Again, I run two Doms off a mechanical pump, have no idea what the pressure is. I wondered about it till I saw a grand national boat #369 running all the same Mike Kuhl shit I got. I think the pump is Kuhl or Clay Smith, it's worked for the last twenty five years so i'll leave it alone.

« **Reply #214 on:** April 12, 2009, 10:21:43 AM »

Our old race boat pull air over about four feet of the bottom of the hull (aluminum) to cool the air down, colder the better, I have a picture somewhere of a tunnel ram on one of the river racers that actually had about 3/4" of frost built up on the base of the manifold after a 38 MPH run...

GT

« **Reply #215 on:** April 12, 2009, 11:06:22 AM »

Quote from: HDriderTH on April 11, 2009, 09:35:14 PM

I think that pan is to keep hot oil off the manifold, my last boat had a tunnel ram and it would frost up at 108* outside!

they are not joking, my old flatty and forkedup both would frost up the manifold, didn't matter how hot is was outside either, kinda freaked people out that didn't know

« **Reply #216 on:** April 12, 2009, 05:37:51 PM »

what makes it frost up? lol sorry if its a stupid ques.

« **Reply #217 on:** April 12, 2009, 06:12:44 PM »

Latent heat of vaporization

As the air goes through the tunnel, it is under low pressure because it is below the throttle blades, it is also wet from the fuel, causing a refrigeration effect to take place, it is the exact basis of how a centrifugal chiller works for industrial cooling plants....

I tried to use laymans terms, so hope that answered your question...

GT

« **Reply #218 on:** April 12, 2009, 06:41:12 PM »

oh lol wow. I never heard of that happening on an engine before. So its basicially like low side high side and the pressure differential makes it frost up? Do low rise manifolds do it or just tunnels?

« **Reply #219 on:** April 12, 2009, 06:54:48 PM »

Shoulda kept my mouth shut, coulda had some fun w/ Ray

« **Reply #220 on:** April 12, 2009, 06:58:29 PM »

tell him to keep driving till the manifold warms up

« **Reply #221 on:** April 12, 2009, 07:40:22 PM »

Quote from: maddogg20 on April 12, 2009, 06:41:12 PM

oh lol wow. I never heard of that happening on an engine before. So its basicially like low side high side and the pressure differential makes it frost up? Do low rise manifolds do it or just tunnels?

A good high rise or a properly working Air Gap might do it if conditions were dead on...

Quote from: HDriderTH on April 12, 2009, 06:54:48 PM

Shoulda kept my mouth shut, coulda had some fun w/ Ray

I was thinking the same thing......

GT

« **Reply #222 on:** April 12, 2009, 09:32:03 PM »

Hey Ray, what kind of intake manifold did you have on there before this swap? And might you be interested in selling it?

« **Reply #223 on:** April 12, 2009, 11:00:08 PM »

Quote from: HDriderTH on April 12, 2009, 06:54:48 PM

Shoulda kept my mouth shut, coulda had some fun w/ Ray

I saw you comin on that one!

Quote from: Nick on April 12, 2009, 09:32:03 PM

Hey Ray, what kind of intake manifold did you have on there before this swap? And might you be interested in selling it?

It's an Edelbrock Performer RPM. (Not the air gap one). New, really, the only run time it has had was during the cam Break in, the weekend at Mead and one short local lake ride. Dunno if I wanna sell it or not tho. It worked VERY well, and from what I got today from the new cruiser I may want to use it on that one, maybe, who knows?.

Ray

« **Reply #224 on:** April 17, 2009, 06:33:07 PM »

OK, Got the Moo named finally! Guy does awesome work! Does it all Freehand. Told him the name, left it up to him how to do it! I think it's awesome what he came up with!

And a Nice touch!

Guys been doing it like 55 years. Works for us part time now.

His name is Al Cajthaml, (goes by 'Cy'), Phoenix Az (602)820-5765

Also have a girl in our paint department willing to do the engine cover for a GREAT price too. Will keep you updated.

Ray

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