Open downpipe ?
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Open downpipe ?
Hey my friend is a supra guy and he every once in a while like to run just open downpipe. he was wondering if a 7 running just downpipe would have enough back pressure and would be safe on the car... i explained the noise it would generate. thanks
#4
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in a rotary engine u dont need back pressure theres no valves to burn... ive ran open down pipe several times , so yes its safe for the engine, and the turbo is plenty of backpressure by it self....
i guess technically it would be " dangerous" to be shooting flames under the car, or ehxusat gas fumes could harm u, and its illegal technically...... but im sure u know this and dont care haha
i have never seen a car spool better with more exhaust..... its allways a restriction...
i guess technically it would be " dangerous" to be shooting flames under the car, or ehxusat gas fumes could harm u, and its illegal technically...... but im sure u know this and dont care haha
i have never seen a car spool better with more exhaust..... its allways a restriction...
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Originally Posted by cpubugs
Why would you run a downpipe on a NA?
n/a with a broken exhaust or dp only is horrid! and I drive a loud road race exhaust system on my n/a and love it
Dave
#18
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Originally Posted by TehMonkay
I mean my exhaust broke off before the cat, and the 2 pre-cats were empty.
However my friends 85GS is much louder running open manifold though.
However my friends 85GS is much louder running open manifold though.
haha ohh god i had this happen before, man that was bad....
ive ran open RB header at hte track before THATS LOUD, good god, even with ear plugs after a few runs my ears felt lik they were going to bleed, for hrs! haha
#20
Lovin my 7
My first car was an Olds Cutlass Supreme, I took the Olds 260 v8 out and replaced it with a small block 350, and after the swap i guess we forgot to tighten the E. Manifold bolts and on the way back from fueling up they vibrated loose, the headers separated from the manifold and it was like both sides did it simultaneously. Me being a dumb 16 year old at the time had no idea the consequences, thought it sounded cool so we drove it all the way home. Needless to say the 1500 bucks I had just spent (well mom my mom spent) on head work had to be redone... But I imagine the rotary with no exhaust is even louder.
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hmm never thought about that good question althou thinking about it. the quicker the turbo spools up the fast the car will pull. so i vote no. ......answers?
Last edited by Turbo11; 03-01-07 at 04:46 PM.
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