Guest Ron BOLIN Posted November 7, 2003 Share Posted November 7, 2003 what is the difference of a tunnel ram intake with 2-carbs totaling 850 cfm and a single high rise intake with 850 cfm carb? Quote Link to comment Share on other sites More sharing options...
johnc Posted November 7, 2003 Share Posted November 7, 2003 About $450.00. Quote Link to comment Share on other sites More sharing options...
waynekarnes Posted November 14, 2003 Share Posted November 14, 2003 the cfm would be the same. issue is, that tunnel ram is only good for rpms above 4 grand. not designed for around town, low rpm driving. meant for full on, full throttle operation. the high rise ( depending upon the design ), usually produces more horsepower and torque, than the factory manifold. a good street driven manifold, comes in around 1500 and pulls through roughly 4500 rpm, the normal range of most spirited daily driving. some manifolds start performing around 2500 and pull through around 6200 rpm. this would be for a cammed engine, headers, worked heads, ect. not a fun engine to be stuck in traffic with. you looking for instant on, instant off, acceleration, get the tunnel ram. looking for something to improve gas mileage, increase the fun ratio, and response of your stock or slightly warmed over engine, get a dual plane high rise, 1500 to 4500 high rise manifold. don't fall for the " if a little is better, too much is just right" way of doing things, on a street driven car. moderation is the key to a successful, fast, fun daily driver, street car. want to build an all out race car, that you sneak out once a week, get the tunnel ram, ect. be way fun, for a while anyway. til your stuck in traffic, with a clutch set up so stiff, that your left leg starts shaking, stop-go, stop-go, temp gauge starts climbing, and no one moving to let you over to the shoulder as the radiator pukes. that big flat spot, caused by the tunnel ram, makes it impossible for you to smoothly pull up in line with the slow moving traffic, plus that fabulous smell of burning peanuts, as you smoke yet another clutch disc and pressure plate, as you slip the clutch, to keep the engine from loading up and dieing, while you inch forward. tell you, i have owned "way too fast". super quick and reliable, is much more fun, in a street beast. but you didn't ask that.... 850 cfm, tunnel ram VS. high rise. 850 cfm is 850 cfm, but think ... this way ... a gallon of milk in a jug, being poured into a glass VS. a gallon of milk sprayed out of a fire hose. both still a gallon of milk, just delivered differently. how do you want your milk delivered ??? Quote Link to comment Share on other sites More sharing options...
Guest Ron BOLIN Posted November 14, 2003 Share Posted November 14, 2003 thanks wayne,you really helped me out. now i wont have to do the trial and error thing on this one. ron Quote Link to comment Share on other sites More sharing options...
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