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Old 01-22-2013, 11:54 PM
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sbc dual quad tunnel ram setup

can i put a dual quad tunnel ram intake on a stock 350 or 400? will it run ok and will it change anything such as horsepower or anything like that?
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Old 01-23-2013, 05:01 AM
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You can install it. But it will be a turd. Stock engines are designed to run to 3500 rpm. Tunnel rams make power above 4500 rpm.
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Old 01-23-2013, 07:07 AM
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You can put it on a simple suitabily modified engine and get good results, if that simple engine is
built to run well and make good use of a tunnel ram. choice of other supporting parts,,,vehicle gear ratio, torque converter stall speed.

A stock engine in stock tune will not work well. Neither wil stock hyway gears
or a stock torque converter.
The biggest problem when you just throw it on a stock engine is throttle response
from a low rpm.

if you want the tunnel ram to work on the street build a engine around it and gear the car
for it.And get the right torque converter.

When the rest of the combination is well matched to work with the tunnel ram the engine makes big horsepower
( more than any single 4 bbl) really likes to rev up, and will "cruise" and "drive" quite well. But not at 1500 rpm.

Here is a good example of a powerfull street strip pump gas friendly tunnel ram engine.
http://www.hotrod.com/techarticles/i..._anvil_series/
http://www.hotrod.com/techarticles/e...plate_systems/

What are you willing to do towards this.?

Last edited by F-BIRD'88; 01-23-2013 at 07:18 AM.
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Old 01-23-2013, 11:27 AM
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That old high ram in the pic. it is very well known for puddling and needs some internal modifications for max performance (poor choice for the street)!!! Its an old eddy race high ram intake! For very high R.P.M! I ran that intake at the track in the 60's!

What are you calling stock? Stock takes in a wide variety of small blocks ! From the 2 barrel grocery getter to the solid cam high horse power L.T.1 or 400 truck block!

I wont be on this thread! Firebird is very knowledgeable on tunnel rams and you don't need 2 of us repeating the same things! So good luck in assembling a good combination I am interested in your build so I will be reading!

Jester
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Old 01-23-2013, 11:46 AM
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For stock like motors where you are primarily more interested in "the look"
and want low rpm cruiser performance, this guy has a modified tunnel ram plenum
that he says works very well. Its internal volume and shape is a lot different.
It does not make big power because of this. But he says its very responsive and makes good torque from low rpm
and drives welll on mild motors with mild gears and converter.
Because of the intended low rpm use and no need for real big horsepower he uses and recommends using small cfm
carbs with vacuum operated secondaries.

Good for T-Buckets and "cruisers" that use a stock near stock engine. If this is what you are after, have a look.

https://www.realstreetram.com/

Last edited by F-BIRD'88; 01-23-2013 at 11:54 AM.
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Old 01-28-2013, 02:00 PM
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Sorry wrong thread LOL
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