Hi All,Iam new to this site and also the p/c world in general,so please be patient with me and I will try to follow all the rules,etc.My name is Scott and been mopar fan most of my life(a/b/c/e bodies)I have owned many and still do.I now own a bone stock 73 satellite 318/904/8 1/4 and looking to juice it up a bit.I already built a 8 3/4 w/391 suregrip,a 727 w/trans go tf2 and a 340 that needs attention yet,I want to run a new tunnel ram that I have had for years(edelbrock street ram)with 500 carters.I do not know if porting/polish the T/R is going to be toward my advantage or not.I am thinking of a 2800-3200 stall and I dont know(cam)yet.Any advise much thanks,Scott

 

I have little experience with tunnel rams, but I wouldn't bother with anything more than a gasket match and blend.

 

Porting and polishing can net nice gains. Most port because the intake is the restriction in the build. Meaning the heads flow more air than the intake can feed it.

Example: Head intake flow 250 cfm @.500. When attached to the intake they flow 230 cfm @ .500. In this case cleaning up the intake and or porting could net positive results. I said could as its a little more complicated that than this but the example is sound.

In your case you are flowing 1000cfm thru 2 carbs thru a big tunnel ram. I suspect your intake flow exceeds the flow of the cylinder heads. I don't know your head flow so take this with a grain of salt. I am assuming they are stock or close too.

X2 as stated above.. I always clean up the area around the gaskets and make sure there isn't a step when you sit on the intake. And I clean up any casting slag or high spots.

Don't worry about the learning curve with the PC. No one is critical on these pages. Welcome to the forum and Merry Christmas!

 

Welcome to the forum.... Be sure to check out the Mopar of the Month contest.. I have no experience with tunnel rams so can't help you there but sure someone on here can.....

 

You'll be wasting your time with a Tunnel ram. Theyre only good for "show" appearances as they look cool sticking out of the hood. You'll make more power and tq with a single 4 bbl thats tuned to your motor.

 

welcome to the forum if you go with a T-ram 4 cyl. Hondas and such will dust you from standing stop drag race
Better off with a low single 4 bbl intake

 

I used to believe that too , we tried a tunnel ram vs a single plane intake on the dyno & the tunnel ram won & not just at wide open throttle , tuned properly you may be quite surprised how well the Tunnel ram will work , blending into the runners & port matching is as far as I would go with port work though .

 

thanks much for your thoughts.

 

Iam unsure of who Iam mailing at this point?But to answer one member's question,I will be going with a set of X-heads with a comp grind,thanks a bunch,Scott

 

Man,was that a hard hit!4 cyl honda's???

 

Scott,


The 340X heads flowed ballpark of 215cfm / 145cfm @.500 of lift. Very good flow numbers for the day. Very good.

For an all out strip motor your tunnel ram will work but will put the power band up so high it will be non responsive in the lower rpm range for street use. Hence the "killed by rice burner comments".

When you take a stock 340 X headed motor and add headers, a dual plane intake, 750-850 Holley and Comps 268H cam you came up with about 390HP. This motor was a "bolt on" dream. Magnum motors are the same way. Search the web as this 340 build has been replicated hundreds of times.

For a street build I would duplicate this set up but use a newer lobe profile and something with +4 to +6 on the exhaust duration to bump up the weaker exhaust flow some. When you spec a cam and get some springs use beehive style spring to help keep mass down in the valve train. This will pay dividends in a quick revving motor.

Best advice would be to pick the cam and your goal before the heads go to get freshened up. If you need to drop a seat or narrow a step its less cost to do it all at once.

 

My 4 cylinder neon will dust plenty of v8s

 

A T-ram will work as long as you are leaving at about 3000 RPM or higher and winding up to 9000 and up
below that thay are useless

 

If someone puts a T-Ram on a stock 318 with 2 600's on it
I would race it in a 8th mile with my stock Accord ( daley driver) and bet $1000.00
with 2 750's I would up it to $2000.00

 

Welcome aboard.

 

my edel air gap is similar to a tunnel ram the runners are straight with a divided plenum. i find a big diffidence from the edel dual plane rpm manifold
i'm not surprised that Chryco Psycho proved it on the dyno

 

Not even in the same league of intake manifolds. One intake has way LONGER STRAIGHT runners than the other...

A tunnel ram is a WASTE of time, especially on a stock motor. Go to the track, look at any 8, 9, 10 second car. Theyre running ONE HUGE *** Carb on a 4bbl intake tuned for THAT motor. No one runs tunnel rams.

 

Hi,I just love your r/t,back in the day my buddy owned one(318 2 barrel/auto)The only thing I recall it having was headers and I recall it dusting many cars including my 73 olds cutlass 350/4,and wasnt even close(I used to tell my buddy it was a freak)

 

Hi,looks is part of the reason,I guess Iam trying to have the best of both worlds,I thank you for your thoughts,Scott

 

Hi,I would like to thank everyone(even the negative ones)for all your input,Iam polishing the T/R as we speak.If is doesnt work out I will be bolting on a single carb,Thanks again,Scott

 

Hey Scott, it's yours and you do it the way you want to. No matter what anyone says. You only have to please yourself.

 

Welcome!

Got any pictures?

 

Thanks for the positive outlook

 

Not yet,but soon.

 

I would stick with the small 500 carbs and definitely go to the 2800 stall converter