Cobra Eaton Stiegemeier Blower Porting

Bob is the man on M112s, but hasn't done anything worthy of discussion with the M90 (mainly because there isn't enough of a market). Magnum Powers (Charles Warner) and ESM (Wade Embree) are still the go to guys for M90 porting and other inovations.

David
 
I have a pair of steg welded heads. I bought them from Dave D.
in 2005. Dave had them made for himself for resale. I think those
were the last 3.8 SC heads he worked on.

They are still in the box they came in. I had them flow tested,
and desided not to use them. The heads that I built for myself
showed much better numbers.The Steg heads came with new
valves, bee-hive springs, Titainium collers.

Randy
 
Randy N Connie said:
I have a pair of steg welded heads. I bought them from Dave D.
in 2005. Dave had them made for himself for resale. I think those
were the last 3.8 SC heads he worked on.

They are still in the box they came in. I had them flow tested,
and desided not to use them. The heads that I built for myself
showed much better numbers.The Steg heads came with new
valves, bee-hive springs, Titainium collers.

Randy
Click to expand...


Randy

Are you still building your Top SC? Glad to see your post thanks for the info on Stag heads
 
Jim I havent been trying to build a top SC Bird over the past few years.
I have been getting the parts together and testing them with a stock
motor.

My plans have been to build more efficant motor for my 1990 SC Bird.
And use it for local weekin car/bike shows. To pull a trailor & haul a
1980/1990 eara H.D Pro-Mod/ Pro-stock drag bike on it. Retain good
fuel mileage, 25 MPG. for when I want to drive it to the grocey store..
My hopes and plans where to have around 325 to 350 RWHP.

I have another SC 3.8 motor that I hope to assemble some day. I have
plans to excede 550rwhp. with All motor. But I want to build or buy
a roller rail chassis to run this motor in. Most likey will run a glide trans
behind it. This is the trype set-up that would suit me best,a 6 banger
bracket car. If I keep the boost level down,and run around 400 RWHP.
This should be a fun/fast enough car thats easier to maintane. I would
feel happier and more at home, reaching though a tube chassis to work
on a 3.8 SC motor.

These two ideas have always been my plans. If I run into a roller rail
chassis, or an affordable narrowed rear end,etc. I will do the tube
chassis car. If the rail roller or I don't run into affordable parts for a build.
I will have a spare motor for my SC Bird somday.

I suppose time will tell me what I will be doing. My builds are
typical as everyone elses builds. Except for more fiberglass body
parts, heads, manifold, blower,etc on the 90 SC Bird. On my built
motor heads, manifold, headers, blower,etc more hand built parts,
will be different than others builds.

I am doing most what you or anyone would do for building there motors.
The only diffence, the car or the rail chassis that I will be using will be
much lighter than most.My 90 SC Bird will look complete, not a stipped
out car to lighten.

Later JIM, Randy
 
Last edited:
Randy N Connie said:
Jim I havent been trying to build a top SC Bird over the past few years.
I have been getting the parts together and testing them with a stock
motor.

My plans have been to build more efficant motor for my 1990 SC Bird.
And use it for local weekin car/bike shows. To pull a trailor & haul a
1980/1990 eara H.D Pro-Mod/ Pro-stock drag bike on it. Retain good
fuel mileage, 25 MPG. for when I want to drive it to the grocey store..
My hopes and plans where to have around 325 to 350 RWHP.

I have another SC 3.8 motor that I hope to assemble some day. I have
plans to excede 550rwhp. with All motor. But I want to build or buy
a roller rail chassis to run this motor in. Most likey will run a glide trans
behind it. This is the trype set-up that would suit me best,a 6 banger
bracket car. If I keep the boost level down,and run around 400 RWHP.
This should be a fun/fast enough car thats easier to maintane. I would
feel happier and more at home, reaching though a tube chassis to work
on a 3.8 SC motor.

These two ideas have always been my plans. If I run into a roller rail
chassis, or an affordable narrowed rear end,etc. I will do the tube
chassis car. If the rail roller or I don't run into affordable parts for a build.
I will have a spare motor for my SC Bird somday.

I suppose time will tell me what I will be doing. My builds are
typical as everyone elses builds. Except for more fiberglass body
parts, heads, manifold, blower,etc on the 90 SC Bird. On my built
motor heads, manifold, headers, blower,etc more hand built parts,
will be different than others builds.

I am doing most what you or anyone would do for building there motors.
The only diffence, the car or the rail chassis that I will be using will be
much lighter than most.My 90 SC Bird will look complete, not a stipped
out car to lighten.




Later JIM, Randy
Click to expand...




Randy

On your rail chassis what type are thinking on using? out here with the Nostalgia Jr fuel they use Sterling chassis also in T/F
 
Jim Demmitt Jr said:
Randy

On your rail chassis what type are thinking on using? out here with the Nostalgia Jr fuel they use Sterling chassis also in T/F[/QUOTE


If every thing would fall in place, parts, chassis, etc. I plan to do
a rear mount engine, glide ,Short wheel-base.

I just want to build a car that will be easy to work on.
To me the fun is about the build, I can't tune. so this rail & my
SC Bird car, likey will never be started & ran.

I have just been looking around the IL. area. The rolling chassis
that I have looked at,the build was not up to my safety specs.
Looked at two the past year or so. I did like the looks of one
chassis, it had a rear mount small block chevy motor &
glide trans, shade tree welded narrowed 9" ford rear, looked
bad..

Randy
Click to expand...
 
Randy

You might want to look into SW Race Cars 800-523-3353 they build bracket and Comp nice rear engine dragster chassis not high priced like the other big chassies builders. Another idea check National Dragster in the classifieds you always see them for sale with up to date certification Headman build some as well for brackets and Super Comp
 
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