aftermarket/Euro Throttle body for 16V
11-13-2003, 08:34 PM
#76
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I've never seen the U in my car before, but doesn't in go into the ''valley'' and that is where air comes through to go into the TB? If so, will you have to take the U off to port it or leave it on. Becuase I was thinking if you left it on pieces of metal would get in there? Anyone correct me if i'm wrong.
Also, I'm going to dyno my car after I'm done installing everything, does anyone have an estimate on how much it coest to dyno your car, and are they familiar with air/fuel tuining on 928s, if needed? Just wondering, I don't know if different people quote differently or if all dynos run the same.
Thanks,
Cory J.
82 Weissch
Also, I'm going to dyno my car after I'm done installing everything, does anyone have an estimate on how much it coest to dyno your car, and are they familiar with air/fuel tuining on 928s, if needed? Just wondering, I don't know if different people quote differently or if all dynos run the same.
Thanks,
Cory J.
82 Weissch
11-13-2003, 08:45 PM
#77
Rennlist Member
If you bolt the U to the throttle body and open the throttle plate, use a magic marker and outline the porting. then, carefully take out as much material all the way through as possible, only to the bottom of the U, as teh entrance where the AFM meets the US is a correct diameter for the system.
MK
MK
Originally posted by Jon F
Mark, I sent you an e-mail about porting the "U" section. I'm not clear on what material has to be removed after opening the throttle body portion of the "U" to 3.3" or so. Did you port the "U" all the way through or just blend it outward from, say, halfway, to the throttle body opening?,
Mark, I sent you an e-mail about porting the "U" section. I'm not clear on what material has to be removed after opening the throttle body portion of the "U" to 3.3" or so. Did you port the "U" all the way through or just blend it outward from, say, halfway, to the throttle body opening?,
11-14-2003, 06:24 AM
#81
Rennlist Member
Just to let you guys know I am expecting to receive several sets of Euro intake systems next week...............
I have your names on file, so I will offer parts in the order people registered their interest.
I have your names on file, so I will offer parts in the order people registered their interest.
11-14-2003, 05:36 PM
#82
Rennlist Member
If/when I can get ahold of the parts I'd like to do this. But I'm having a little trouble with concept of what has to be ported and how this is done. Any before and after pictures would be most appreciated.
Mark
Mark
11-14-2003, 05:40 PM
#83
Rennlist Member
For those of you that done know what the "U" is, Its the section of the US air intake system that attaches to the bottom of the throttle body and has a rubber o ringed opening that the AFM slides in and out of when mounting the stock air box. on top of the throttle body, mounts the Plenum for which it has a rubber tube with two metal hose clamps. on the plenum are the 8 ports which mate to the runners.
The larger diameter Throttle body mounts to the "U" but the U is designed for the much smaller diameter US Throttle body. So, with an Air grinder, you would remove the material to port match the "U" to the new , much larger throttle body.
Mk
The larger diameter Throttle body mounts to the "U" but the U is designed for the much smaller diameter US Throttle body. So, with an Air grinder, you would remove the material to port match the "U" to the new , much larger throttle body.
Mk
Originally posted by Jon F
Thanks Mark! I'll post before and after pictures of the "U" section tomorrow when the porting is finished.
Thanks Mark! I'll post before and after pictures of the "U" section tomorrow when the porting is finished.
11-14-2003, 09:25 PM
#84
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I haven't yet finished the porting, but I wanted to post an update. I'm using a Dremel so it is taking a long time, but I found a few good bits to use and it sped up the work considerably. I've basically finished the rough porting around the throttle body opening but haven't finished smoothing the transitions or removing all of the material that I'll end up taking out from the rest of the pipe. Most of the metal will be removed in the last 1/2" of the "U" section, because the pipe itself is not very thick and you cannot remove that much material. Essentially, the idea seems to be to open up the throttle body end to the size of the opening of the throttle body and then blend the rest of the "U" as cleanly as possible. I'll post some updated pictures when the rest of the porting is finished.
11-14-2003, 09:31 PM
#85
Rennlist Member
you got a long long way to go, but good job so far. especially if you are using a dremmel. Ive been there , it aint fun. I could have it done in less than an hour with the air tools, and it will be much cleaner. you only have to worry about one area of the U for thickness, and it is obvious. the rest of the areas you need to get a lot of mass out of it. and you need to port much further down, expecially in the thick areas. (near the vent ports too, and on the inside of the radius. you can really widen it up. remember, if you dont get that area widened , you are probably leaving power on the table. critical too, because it is a "U" and the "U" has more losses , so it needs to be as large as possible.
Scots was a work of art, if I say so my self. I did the grunt work, and he cleaned it up with a dremel to make it shine!
keep going and dont stop until I see the final picture
MK
Scots was a work of art, if I say so my self. I did the grunt work, and he cleaned it up with a dremel to make it shine!
keep going and dont stop until I see the final picture
MK
Originally posted by Jon F
I haven't yet finished the porting, but I wanted to post an update. I'm using a Dremel so it is taking a long time, but I found a few good bits to use and it sped up the work considerably. I've basically finished the rough porting around the throttle body opening but haven't finished smoothing the transitions or removing all of the material that I'll end up taking out from the rest of the pipe. Most of the metal will be removed in the last 1/2" of the "U" section, because the pipe itself is not very thick and you cannot remove that much material. Essentially, the idea seems to be to open up the throttle body end to the size of the opening of the throttle body and then blend the rest of the "U" as cleanly as possible. I'll post some updated pictures when the rest of the porting is finished.
I haven't yet finished the porting, but I wanted to post an update. I'm using a Dremel so it is taking a long time, but I found a few good bits to use and it sped up the work considerably. I've basically finished the rough porting around the throttle body opening but haven't finished smoothing the transitions or removing all of the material that I'll end up taking out from the rest of the pipe. Most of the metal will be removed in the last 1/2" of the "U" section, because the pipe itself is not very thick and you cannot remove that much material. Essentially, the idea seems to be to open up the throttle body end to the size of the opening of the throttle body and then blend the rest of the "U" as cleanly as possible. I'll post some updated pictures when the rest of the porting is finished.
11-15-2003, 09:10 PM
#87
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Well, I'm bored. What do I do when I'm bored? Tear the car apart and look at something. Here's some pics-
Euro/ROW intake spider.
N!
[Yes I put the socket wrench away!]
Euro/ROW intake spider.
N!
[Yes I put the socket wrench away!]