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Does any buddy know how gases flow in a pipe with a bend?
It does not look like it!
If any buddy can show me the difference on a dyno between
mandel and crush bent exhaust.I will eat my exhaust. What you need for a better flow is call (cobra neck) bend.
Same ID pipe!
SVT 99 #526 of 2760
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They speak english in Canada, right?
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Scourge of the Master Debaters
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Scourge of the Master Debaters
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Not in Quebec... they speak French. That still doesn't explain why its in the wrong forum, though 
Beer is my Gatorade.
Hooray Beer.
'98 "Sport" Pacific Green
'98 E0 SVT Silver Frost
Pictures
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99 SVTC, T-Red, #652/2760-12.8.1998
Mother#@%@!* did I sound abstract?
I hope it sounded more confusin than that!
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Originally posted by JonnySVT:
Nothing like grammar and spelling errors to prove a point. Also, unless I'm completely off the top here, mandrel bends DO keep the same ID, that's why they're better than crush bends.....I'll just give you the benefit of the doubt and say you're drunk. 
I know I do not know how to spell and my grammer is the
s-hits. Put From what I can see you do not know how a gas flows in a pipe went it as a bent.
SVT 99 #526 of 2760
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Originally posted by Jason43:
They speak english in Canada, right?
Apparently not.
Bless our servicemen & women overseas.
L.Cpl Ian Malone, 1st Battalion Irish Guards, R.I.P.
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you're way off man   Mandrel bends maintains the same ID all the way through the bends. Crush bends are just like they sound; the piping is crushed slightly while bending, decreasing the ID of the pipe. A truly excellent exhaust can make a big difference to performance. You want to maintain velocity of the exhaust gases with as little restriction as possible. The reason is the scavenging effect on your engine. What this means is that with an excellent system, each exhaust pulse, as it races through the piping, leaves a slight vacuum behind it to help suck the exhaust out of the next cylinder when the exhaust valve opens. This helps make your engine more efficient. You want to pump in all of the air you can, and pump all of the exhaust out. This is especially important at high rpm, when things are happening more quickly Think of your exhaust system as freeway. The larger your exhaust system, the more lanes in the freeway for traffic (or exhaust) to travel. Now lets say your exhaust system is two lanes of a 4 lane freeway. With a mandrel-bent exhaust, you maintain both lanes as you go around a bend. With a crush-bent exhaust your freeway goes from 2 lanes on the straights to 1 lane on the bends. Not very good, eh? Both lanes of traffic have to squish into one to go around the bend. Traffic already has to slow down to go around the bend, but having to go down to one lane too slows it down further. This isn't much of a problem when traffic is light, but traffic is heavy (i.e. your foot is down on the throttle and rpms are up) things start to back up before you reach the bend. In this case, though, tempers don't flare and horns don't honk - you just lose performance. ok..I'm done now
Derek Johnson
88 TurboTBird 32psi, t3/t4 bb 50trim, megasquirt, 3 bar map, 50lb inj, roller cam w adj. gear, header, 3" downpipe and full exhaust, gutted intake manifolds, spec stg 3
95SE 3L gone
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'03 SRT-4
50 trim turbo + support
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Quote:
Put From what I can see you do not know how a gas flows in a pipe went it as a bent.
WTF are you getting at? Did you discover a new way of life or something?! What I was saying is described in 3LPower's post above, I just thought it was a relatively simple subject to understand and did not need to go that far...but obviously it was necessary because you're on another planet. Well rocket scientist, how does "gas flow in a bent pipe"?...as you put it. 
99 SVTC, T-Red, #652/2760-12.8.1998
Mother#@%@!* did I sound abstract?
I hope it sounded more confusin than that!
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CEG\'er
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Originally posted by JonnySVT:
Quote:
Put From what I can see you do not know how a gas flows in a pipe went it as a bent.
WTF are you getting at? Did you discover a new way of life or something?! What I was saying is described in 3LPower's post above, I just thought it was a relatively simple subject to understand and did not need to go that far...but obviously it was necessary because you're on another planet. Well rocket scientist, how does "gas flow in a bent pipe"?...as you put it.
Maybe he is refreing to harmonics in the exaust and all that but I still don't see what that has to do with the way the pipes are bent, lenght and the shape of the bends yes but not the way they are bent. So yeah what do you know that rest of us don't? Besides it's the headers that do the reall exaust work, the rest is just to keep the neighbours happy (and the eco nazis)!
airman1
Black '95 Mondeo
V6Si
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