How to get a turbo to spool much faster, for $5usd
04-07-2005, 05:38 PM
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How to get a turbo to spool much faster, for $5usd
No... I am not the dumbass some people have made me out to be in <a href="https://forums.audiworld.com/a4/msgs/2303357.phtml"><b>this</b></a> thread.
The discussion between myself and big E pimpin tha DD's was "ways to make a turbo faster, for under $5". This trick, in fact, I learned from someone that has been tweaking audi's for years...
What the long hose will do on a spring-type wastegate is decrease the wastegate creep. This also applies on most ECU controlled wastegates. Most factory systems creep the wastegate open to begin with to increase "driveability".
The volume of a 15-16ft hose, is not enough to create an overboost situation... It will not lag the controls by any measurable amount.
The difference myself and a celica turbo friend noticed on his car (built, 400whp, awd celica, T3/T4 hybrid 60 trim, .63 AR). It was highly noticeable. (this is a spring wastegate)
Between running no wastegate control at all (the maximum a turbo will conveniently spool) and running a typical boost control hose. Running a very long hose (15-16ft) was roughly 50%.
Very noticeable when driving.
To go along with this, or to simply supplement a stock system, you can T (or Y) a small sealed volume into the boost hose. This will increase the volume that some of the boost gas to go through tremendously faster than a longer hose.
A small aerosol can (like a smaller hair spray one) to a 20oz coke bottle is generally the acceptable size.
There *needs* to be a warning about adding a sealed volume. If you don't exceed around a 20oz size, you shouldn't see any difference in maximum boost pressure (even combining them). *However* The more you increase the sealed volume (aka, air proof can with a barb on it) you begin to run the risk of overboosting.
By no means is this a non ghetto way to do anything... Nor does it attempt not to be call that. What it is, is a $5 way to cut turbo spooling down very noticeably.
(If you want, just run the hose straight down first, then make a lap of the engine bay, coming back to the wastegate, so noone can see it.)
And as you can see, the volume and length of pipe does not affect maximum boost at all. The graph was taken at the car's DD pressure.
Grabbing second and spinning tires a good clip with only 7.25 psi of boost is nice. Grabbing fourth and doing it at 25psi is just a sign of shear needing more expensive tires haha.
Detract all you want, because it has the downside of being cheap and ghetto, but realize it does work...
<img src="http://img.photobucket.com/albums/v414/Toysrme/Answers/antiwastegatecreep.jpg">
The discussion between myself and big E pimpin tha DD's was "ways to make a turbo faster, for under $5". This trick, in fact, I learned from someone that has been tweaking audi's for years...
What the long hose will do on a spring-type wastegate is decrease the wastegate creep. This also applies on most ECU controlled wastegates. Most factory systems creep the wastegate open to begin with to increase "driveability".
The volume of a 15-16ft hose, is not enough to create an overboost situation... It will not lag the controls by any measurable amount.
The difference myself and a celica turbo friend noticed on his car (built, 400whp, awd celica, T3/T4 hybrid 60 trim, .63 AR). It was highly noticeable. (this is a spring wastegate)
Between running no wastegate control at all (the maximum a turbo will conveniently spool) and running a typical boost control hose. Running a very long hose (15-16ft) was roughly 50%.
Very noticeable when driving.
To go along with this, or to simply supplement a stock system, you can T (or Y) a small sealed volume into the boost hose. This will increase the volume that some of the boost gas to go through tremendously faster than a longer hose.
A small aerosol can (like a smaller hair spray one) to a 20oz coke bottle is generally the acceptable size.
There *needs* to be a warning about adding a sealed volume. If you don't exceed around a 20oz size, you shouldn't see any difference in maximum boost pressure (even combining them). *However* The more you increase the sealed volume (aka, air proof can with a barb on it) you begin to run the risk of overboosting.
By no means is this a non ghetto way to do anything... Nor does it attempt not to be call that. What it is, is a $5 way to cut turbo spooling down very noticeably.
(If you want, just run the hose straight down first, then make a lap of the engine bay, coming back to the wastegate, so noone can see it.)
And as you can see, the volume and length of pipe does not affect maximum boost at all. The graph was taken at the car's DD pressure.
Grabbing second and spinning tires a good clip with only 7.25 psi of boost is nice. Grabbing fourth and doing it at 25psi is just a sign of shear needing more expensive tires haha.
Detract all you want, because it has the downside of being cheap and ghetto, but realize it does work...
<img src="http://img.photobucket.com/albums/v414/Toysrme/Answers/antiwastegatecreep.jpg">
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