Throttle body pipe mod, done...
05-01-2009, 02:34 PM
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Throttle body pipe mod, done...
Spent a hell of a day (actually 4.5 hours) installing my throttle body pipe.
I got this about a year ago and it has just been sitting around so i finally got the urge to do it today... couldn't find my racheting wrenches so it was a ***** to get into those tight spaces...but i got it done....
Just got back from a test drive... with the A/C on... sorry it's 35*C here at 9:30 PM (Saudi Arabia).
The throttle response is improved, the pounce on power on a downshift is great. Power from 3000 to redline is imporved for sure and the intake noise is deep and louder like a BWAAAAA in baritone...
Love it...
I got this about a year ago and it has just been sitting around so i finally got the urge to do it today... couldn't find my racheting wrenches so it was a ***** to get into those tight spaces...but i got it done....
Just got back from a test drive... with the A/C on... sorry it's 35*C here at 9:30 PM (Saudi Arabia).
The throttle response is improved, the pounce on power on a downshift is great. Power from 3000 to redline is imporved for sure and the intake noise is deep and louder like a BWAAAAA in baritone...
Love it...
Last edited by nuclearhappines; 05-01-2009 at 02:42 PM.
05-02-2009, 05:25 PM
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This what i used... but it was a TIGHT fit
1 1807-RA018 60mm 90* Bend
2 1808-SA011 Silicone hose coupler 65mm X 70mm
4 1805-SA008 Spring type hose clamp 29-75mm
I was about 3 fingers wide ... so 1.5" to 2" short with that elbow... so i found some 60mm exhaust pipe lying around the house and cut a section of it...
the final setup was the stock intercooler hose --> HKS coupler --> my 2" extension pipe --> mercedes benz OEM hump coupler (that used to sit a the bottom of the stock elbow) --> HKS 60mm 90* bend --> the other HKS coupler on the throttle body..
It would be better if you got a 90* manderel bend so you wouldn't have to do what i did...
the other thing is the elbow and the intercooler hose don't line up perfectly... now since i have 3 couplers in there, at every connection there is a slight bend... so over all i made it 3" to the side to meet the stock intercooler pipe...
but if i had to do it again... I'd probably get a 22* or 45* silicone coupler to go at the bottom on the stock hose... and so that goes up and left (if you're trying to visualize this with me) to bring the 90* bend closer to lining up perfectly (rather than stubbornly) with the throttle body.
The stock pipe is small, it's ROUGH! on the inside (and it shouldn't be ... it's a good cheap mod...
worth it in drivability.
1 1807-RA018 60mm 90* Bend
2 1808-SA011 Silicone hose coupler 65mm X 70mm
4 1805-SA008 Spring type hose clamp 29-75mm
I was about 3 fingers wide ... so 1.5" to 2" short with that elbow... so i found some 60mm exhaust pipe lying around the house and cut a section of it...
the final setup was the stock intercooler hose --> HKS coupler --> my 2" extension pipe --> mercedes benz OEM hump coupler (that used to sit a the bottom of the stock elbow) --> HKS 60mm 90* bend --> the other HKS coupler on the throttle body..
It would be better if you got a 90* manderel bend so you wouldn't have to do what i did...
the other thing is the elbow and the intercooler hose don't line up perfectly... now since i have 3 couplers in there, at every connection there is a slight bend... so over all i made it 3" to the side to meet the stock intercooler pipe...
but if i had to do it again... I'd probably get a 22* or 45* silicone coupler to go at the bottom on the stock hose... and so that goes up and left (if you're trying to visualize this with me) to bring the 90* bend closer to lining up perfectly (rather than stubbornly) with the throttle body.
The stock pipe is small, it's ROUGH! on the inside (and it shouldn't be ... it's a good cheap mod...
worth it in drivability.
05-03-2009, 03:22 AM
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01' C32o
Damn, that's a unique and cool mod, and I definitely see where it would improve over the stock setup. Maybe you should post a DIY or something like that; even better, market it! I'd buy one!
BTW, what engine did you do it on?
BTW, what engine did you do it on?
05-03-2009, 02:18 PM
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This is on a supercharged M271 engine...
I'm not the first to do this mod....
https://mbworld.org/forums/2497571-post21.html
I did it a bit differently... but still worked out great... if you look at team redline's picture, he removed the mounting point where the intercooler hose is connected to the engine... and on my car since the pipes i had were short (and we don't really have speed shops for this kind of stuff here in Saudi)... I had to do what I had to do to get it on...
What I have in mind next is this:
1- There was oil in the throttle pipe when i took it off... a catch can would be a good idea.
2- A completely heat shielded filter (Such as the blitz sonic power or one of the others pictured below) connected to a 3" pipe being fed directly from the driver's side vent (yet sheilded from the radiator air ...
But i'm debating on this weather a larger filter (like the K&N in the airbox) which has more surface area but being fed by a 2.5" pipe (for a 3" filter) and two 90* bends is better or weather direct 3" access to a smaller filter is better.
I think I already know the answer to this, and it would probably be more about weather you want your power from 2000 to 4000 or weather you want it from 4000 to 6000 ...
But i haven't taken decision to do this yet because i still have more important stuff to get done first (get my midpipe and pulley installed and see how i feel about that power level).
I'm not the first to do this mod....
https://mbworld.org/forums/2497571-post21.html
I did it a bit differently... but still worked out great... if you look at team redline's picture, he removed the mounting point where the intercooler hose is connected to the engine... and on my car since the pipes i had were short (and we don't really have speed shops for this kind of stuff here in Saudi)... I had to do what I had to do to get it on...
What I have in mind next is this:
1- There was oil in the throttle pipe when i took it off... a catch can would be a good idea.
2- A completely heat shielded filter (Such as the blitz sonic power or one of the others pictured below) connected to a 3" pipe being fed directly from the driver's side vent (yet sheilded from the radiator air ...
But i'm debating on this weather a larger filter (like the K&N in the airbox) which has more surface area but being fed by a 2.5" pipe (for a 3" filter) and two 90* bends is better or weather direct 3" access to a smaller filter is better.
I think I already know the answer to this, and it would probably be more about weather you want your power from 2000 to 4000 or weather you want it from 4000 to 6000 ...
But i haven't taken decision to do this yet because i still have more important stuff to get done first (get my midpipe and pulley installed and see how i feel about that power level).
