jonesgti_r
New Member
Does the length of the pipe between the airfilter and turbo make any difference to performance?
Is a shorter pipe run preferable :?:
Is a shorter pipe run preferable :?:
airfilter intake pipe
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skiddusmarkus
Active Member
I'd disagree there but not sure why it does.You can tune the length to change torque characteristics.
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Anonymous
Guest
i've heard of,or read this somewhere tooskiddusmarkus said:
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Anonymous
Guest
you could be rightMarkTurbo said:
i just remember hearing/reading something on the subject but would not like to say in what context it was used :?
skiddusmarkus
Active Member
I don't know why it's supposed to make a difference.In the grand scheme of things having an inlet 12-24" shorter on a turbo car is neither here nor there.The amount of time it would take the air passing through it to cover the extra length is going to be measured in fractions of a second.
I'd say the design of the pipe is more important,with having a straight a pipe as possible with smooth bends desirable.
I'd say the design of the pipe is more important,with having a straight a pipe as possible with smooth bends desirable.
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Anonymous
Guest
is it not something to do with air velocity being reduced the longer the inlet is :?:skiddusmarkus said:
skiddusmarkus
Active Member
Apparently that doesn't work if you have a MAF as it needs to be something like 14" away from the turbo.
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osmium
Guest
I read somwhere, I think it was on these forums actually about pipe lengths and that sort of thing.
IIRC it goes something like this, and more relevant to NA rather than turbo cars but the principle still applies to some extent. A longer intake run creates a greater amount of momentum of the air going into the engine, the air close to the engine drags in air from the filter end of things.
thats probably a very bad description but basically long pipe = more low end torque, short pipe = less restrictive, so there is a middle ground for what the best pipe length is.
someone correct me if I'm wrong, or link it if I'm right
IIRC it goes something like this, and more relevant to NA rather than turbo cars but the principle still applies to some extent. A longer intake run creates a greater amount of momentum of the air going into the engine, the air close to the engine drags in air from the filter end of things.
thats probably a very bad description but basically long pipe = more low end torque, short pipe = less restrictive, so there is a middle ground for what the best pipe length is.
someone correct me if I'm wrong, or link it if I'm right
skiddusmarkus
Active Member
I wasn't but it would be a similar principle.
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leeboy
Guest
I dont think it would make any difference if the pipe was larger, you might get a different noise, but the turbo has a nice steel pipe bolted to it, so even if it was larger it would still have to compress down to that size.
The original pipe has nice smooth bends, were as some cars have the consantena type rubber pipe, that would restrict a little, but size depending. Air does increase in speed if it has no bends to go around, but its all getting mashed up into a turbo, compressed, pushed throught an intercooler, then fed into a cast aluminium inlet manifold, the inlet pipe is the least of the worries.
The original pipe has nice smooth bends, were as some cars have the consantena type rubber pipe, that would restrict a little, but size depending. Air does increase in speed if it has no bends to go around, but its all getting mashed up into a turbo, compressed, pushed throught an intercooler, then fed into a cast aluminium inlet manifold, the inlet pipe is the least of the worries.
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AndrewD
Guest
tuning the length of the pipe can make a big difference in power, as for example on both the intake and exhaust runners, the length can change the peak torque / power band by varying the length
changing the diameter of the pipe can change the velocity of the gas, and also the strength of the pressure pulse for pulse tuning and can lead to HUGE increases of power for money!
so YES IT WILL MAKE A DIFFERENCE esp post turbo and lag also!!
changing the diameter of the pipe can change the velocity of the gas, and also the strength of the pressure pulse for pulse tuning and can lead to HUGE increases of power for money!
so YES IT WILL MAKE A DIFFERENCE esp post turbo and lag also!!