IcemanG17

Louies is fully under the stock hood.......

that does look sweet....real muscle car mean really!

6.0-928S

Lol!
Not hardly! I had to buy the throttle bodies but I made the manifolds myself. The total cost of the aluminum, plates, tubing, was less than $100.00. I ported the plates to transition from the oval ports in the head to almost round. I cut tubes at an 18 degree angle. Then I compressed the round tubes at the base only to match the base plate porting. (.5 inch). Then I made the throttle body mounting plates (.375 inch), & countersunk them halfway with 2.25 recesses. Snapped the tubes to the top plates, had them welded (I'm not good enough to make the beads I'd like). Now I'm fabricating the airbox from aluminum to hold the MAF & airfilter to fit inside the air scoop, hence the need for the hood angle info that you so graciously provided. Tryin' ta make it all come together.
Thanks again,Hammer

6.0-928S

Thanks Brian. After functionality, that's the idea. I'm an old American Hot Rodder. I thought of the best way to make horsepower & mid range torque with the intake & merged it with a muscular look.
As I said, I spoke with Louie. One of his requirements for his (obviously successful setup) was to stay under the hood. That wasn't one of mine. I admire & respect what Louie has done, don't get me wrong. I just didn't make an underhood requirement part of my idea that's all. I don't expect to make his kind of horsepower. But that doesn't mean I won't try!

Regards, Hammer

mark kibort

exactly!!!

mk

BC

Thats just beautiful.

Bill Ball

My SC 's being modified (more internals spacers and peripheral fasteners in the manfold).

6.0-928S

Here's some update pics on my progress. I've decided against the fiberglass shaker & I'm having a talented friend make me one from aluminum. But today I got the linkage, breather, & vacuum setups mounted. I mounted a tower in the valley fed by four cam cover lines. The base of the tower is thru-mounted by the allen plug at the center of the block which I drilled through so the oil can drain back into the crankcase. The hole in the top plate in the tower is for access to the allen bolt at the base. The tower doubles as the mount for the vacuum box & the throttle bellcrank. There will be a hose from the back of the tower going to a carbon breather filter open to the atmosphere. The ISC motor will have a line going to the back of the vacuum box. Both the ISC & the carbon filter will mount on the airbox which, since I'm still waiting for the scoop, I haven't fabbed up yet. Thought you guys would like some pics..........

Bill Ball

Quite beautiful.

One question...What controls the flow from the "tower" catch can into the block so that positive crankcase pressure doesn't just blow the oil out the breather? The main problem I see with every breather setup so far is managing positive crankcase pressure. In stock motors, the only crankcase ventilation appears to be from the oil filler neck, and oil-laden vapor being thrown off the crank is pushed out at high velocity through small breather orifices and can dump a ton of oil into the throttle housing or, if ventilated externally, into the catch can or atmosphere.

In my car, at very, very high speed, I find a LOT of oil comes out of the unfortunately small filler neck breather and almost none out of the cam covers.

6.0-928S

You said it exactly Bill, the "unfortunately small" breather. Small in this instance translates to "high velocity". By having four "large" 8AN feeds into a "larger" tower the velocity goes down & translates to "slow". Oil in suspension will drop out of suspension at low velocity. Kinda makes the tower an oil seperator. It always worked on my drag cars where engines are always at maximum throttle. I expect it to do the same on a street altho hi-output motor.
In the stock setup the oil filler neck is directly over a crank throw so the oil is actually thrown up the neck with great force. I blocked mine off. The hole in the center of the valley is shielded by a main journal bulkhead & can't get oil thrown directly upwards.

Regards, Hammer

Bill Ball

Hammer:

Lot's of people have tried all kinds of baffles inside the filler neck area to attempt to stop the oil thrown off the crank from exiting the neck via the breather. I think the problem is that the oil is still carried around the baffles by the high velocity air. Most of it is small droplet/vapor churned up by the crank, not thrown off, that just goes with the airflow and even that which condenses on whatever baffles, gets blown out when it drops off. The airflow velocity is just too high.

I hope your setup works well. You won't know until you go to the track or open road race. Joe Fan has an elaborate breather system. Even though he moved the filler at least 18 inches away from the stock opening, if the cap is even slightly loose loose, huge amounts of oil will exit it. This proves to me it is VAPOR and will defeat almost any baffle. Even intact, he can fill a quart catch can in 30 minutes on the track. Tim & Cheryl, despite the latest and greatest breather system from DEVEK will overflow their catch can during a race. I think people underestimate the need for more crankcase breathing and better oil vapor management. I don't have the answer to keeping the oil in the engine at high speed.

90 S-4

Hammer,
I've been wondering where you've disappeared to, You've obviously been
very busy working on your motor, and boy does it show ! Very nice !
One question, in one of your post's you said the mtr will vent to atmosphere
but in your description of the vent tower you mentioned a vacuum box sitting
on the top/rear of the vent tower ? Are you going to be incorporating an external
crank case vacuum pump of some sort, or just going to vent to atmosphere ?
Keep up the good work & keep dem pics coming..
Joe

6.0-928S

Thanks Joe. In the first picture you can see the top of the tower without the vacuum box/bellcrank installed. There will be a pipe plug blocking off the access hole before the vacuum box is bolted on.(the four helicoiled holes on top of the tower mount the box. The vacuum box is fed from below each throttle blade in the ITB's. So the vacuum box will be seperated from the crankcase breather by the mounting plate. That's how the tower/breather, vacuum box, & linkage mount are all solved by one assembly.

Bill, I don't claim to know all the answers to the oil breather problems 928's have. I just gave it a lot of thought & this is my attempt to solve the problem. It HAS to be better than the status quo. It's my effort & we'll see what happens. I guess I'll call it research & development.

Thanks, Hammer

90 S-4

Oh ! a vacuum box for the brake booster, got it, thanks, good idea.

John Veninger

Run a small drain line (-4) back to the oil pan.
I made a can like Tony H. did for my old 5.0l hybrid. The can had two lines in from the engine and then two lines to a catchcan w/ breather. The catchcan would only have a few teaspoons after 30 min. Before that it would fill!
Caused me a crash way back when

6.0-928S

Hi John,
The tower is sitting on the center hole in the valley of the block. (between the knock sensors) From the factory it is plugged with an allen plug. I drilled a hole through the center of the allen plug & used it to mount the bottom of the tower. When the oil accumulates it the tower it will drain back into the crankcase.

Regards, Hammer