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No real need to take it easy - Motronic will ensure that boost and timing are limited when air temps get out of control... you can run without the intercooler OK.
Please forgive my potential ignorance on this one...
Is there a question here as to whether it's "without intercooler" or "without intercooler but with a bypass hose"?
If there is simply no intercooler, and no intercooler bypass hose, what path does the air take into the manifold? Does it still go via the filter (MAF, turbo, etc), or is the engine sucking it straight in from somewhere after that?
Ck.
Shocked, exhausted, hosed, bushed, dumped, chipped, mounted, filtered, gauged, packed, intermittantly wiped and braked. I mean broken. Now, about the car...
Please forgive my potential ignorance on this one...
Is there a question here as to whether it's "without intercooler" or "without intercooler but with a bypass hose"?
If there is simply no intercooler, and no intercooler bypass hose, what path does the air take into the manifold? Does it still go via the filter (MAF, turbo, etc), or is the engine sucking it straight in from somewhere after that?
Ck.
Huhh - not sure I understand you... There isn't such a thing as an "intercooler bypass hose".
The car in question got a frontal ding which holed the intercooler. The owner is looking to temporarily run with a section of hose in place of the damaged intercooler just to keep the car on the road as its driveable otherwise.
Plenty of old turbo cars ran without an intercooler - they are a relatively new invention.
Don't forget the intercoolers location on the intake path is between the turbo compressor output and the inlet manifold. Its job is to reduce air temperature (effectively increasing the mass where flow and pressure is constant) - the result of cooler air is increased knock resilience and therefore more power and torque available.
The owner is looking to temporarily run with a section of hose in place of the damaged intercooler
Yup that's what I meant by "intercooler bypass hose". Didn't express myself very clearly - apologies. First day back at work after a week of getting up late and lazing around watching Wimbledon, so brain not firing on all cylinders again yet.
Originally posted by S2central.net
Plenty of old turbo cars ran without an intercooler - they are a relatively new invention.
Realise that
Wasn't clear (to me at any rate) in the original post whether there was a section of hose in place of the intercooler - is just says "without one".
Ck.
Shocked, exhausted, hosed, bushed, dumped, chipped, mounted, filtered, gauged, packed, intermittantly wiped and braked. I mean broken. Now, about the car...
Bypassing it with a piece of pipe, that's what I meant too.
S4s have two intercoolers, yes? As I understand it the old 1.8T A4 had one on one side only and the S4 had a matching symmetrical opposite.
Does this mean mcandmar intends to run one side with the i/c and the other side without?
__MDC__
The later 2.7 V6 bi-turbo S4's (A4 based) had two intercoolers, but going off the pics in Marks gallery, this is the ealier urS4 (audi 100/AAN 20v turbo engine) which only has one intercooler.
2001 Avus Silver B5 RS4.
2004 A4 Avant 1.8T quattro Sport-LE.
1995 S2 Coupe - sold (sniff)
Sorry to confuse everyone, i did mean putting a pipe in place of the intercooler, car is a 93 URS4.
First pic shows the hole in the bumper that the intercooler made. The second pic is looking forwards to the output side of the IC, you can see two red marks where the output hit the front cross member, the top left hand corner of the IC is the part that poked out through the bumper, it got pushed back into the car and pulled the intercooler apart.
If there is simply no intercooler, and no intercooler bypass hose, what path does the air take into the manifold? Does it still go via the filter (MAF, turbo, etc), or is the engine sucking it straight in from somewhere after that?
Ck.
If the intercooler is removed and nothing is put back in its place then the car simply won't run. I discovered this when one of the hoses fell off my intercooler.
The car will stall and will not idle at all. You could hold it at a certain rev level using the accelerator, but as soon as you try and pull away, it would stall again.
... Motronic will run without intercooler, and without a pipe in its place. You'll have to disconnect the MAF plug, it'll run super rich (default value), but it will certainly get you home.
Never show a fool a half built house.
Never underestimate the power of stupid people in large groups.
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The more bread you have, the less **** you eat
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