So I've heard of it for a few years and have never seen it. What is it. I've been searching for 2 days and have found nothing... Some1 please help...

58 views and noone knows...

i think you've heard incorrectly.... because i've been active in the forums for a good amount of time and never heard of teardrop porting...



maybe they were describinb the shape of the primary and secondary ports.... its kinda like a crooked teardrop

here we have VWs "teardrop" wheels. maybe they meant that the ports look like them. instead of it being a whole hole, it kinda tapers like the "teardrops" in the rims....

http://www.c3cars.com/CFJFiles/C3Cars/14867.jpg

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Yea I know about teardrop alloys, I had them on my Jetta. I met this guy at a Mazda meet and he was telling me to make sure that when i port my engine to make a teardrop in the port. I think what he ment was making the bowl part of the port into a teardrop shape when i port it. He seemed to know his $#!+, so I listened. I think he ment someting like teh attached pic. Too bad Ito or BDC are never around anymore...

Tear drop porting is basicly what old school'rs call street porting.

that's what I was figuring. cause the poeple who've mentioned it have been in the game for atleast 10 years. His exact words to me were, "When you port it make sure you teardrop port it along with the bridge. There's enough meat in the iorns to do both."

Ok, alot of people are messed-up with this one ! Tear drops on the iron plate go right above the port whole's. There not teardrops, there just little hole's that are place on a angle, so with the drill bit it looks like a tear drop. The objective here (Back in the day's) was to get more power without having to have a brideport. So, instead of the BP you have between 3 to 5 hole's on the iron plate's and the engine give's you more power and a very radical sound. It also isn't as loud as a BP but better than a SP. Usally, the secondary are done, but it can be applied to any engine especially when there isn't enough room little on a 6 port engine where you're kind of skeptical to do a BP. I have owned two and had constructed for myself one with this type of application. If you go over to the Latinamerican forum you'll see many that know about it and probably still use it. Again, this was a technic that was used years back ! https://www.nopistons.com/forums/pub...IR#>/bigok.gif

Teardrop port = Bridgeport, backcut style, with no full eyebrow. The eyebrow would be "dotted". That makes little teardrop shapes, with the tip of the drops pointed at the internal iron face.



Correct?

Yes ! You are absolutely correct. This is a nice technic to apply to an engine that you want to sound distinic from the rest and there's benifits from it as well.

thanks for clarifying that GSL13B.



would anyone happen to have pictures of this technique? now that its explained and clarified?

Or better yet, videos or sound clips?

Guys... it's just a bridgeport



just less porting, more iron surface area







you still achieve the early intake opening of a bridgeport, it's just less dramatic because it's not a full eyebrow





this is how they did it in the old days







sorry for the crappy drawing, but to make a bridgeport, you drill holes at an angle (to smooth the airflow), and then use your die grinder to smooth it out and make a full eyebrow. then the bridgeport becomes whats called a "backcut" because the airflow is directed into the port. some bridgeports are drilled straight and ported straight, there is no "backcut"



a non-backcutted bridgeport is created by drilling straight holes. the straight holes would be the non-backcutted version of a "teardrop" port



teardrop porting is one step away from a bridgeport



teardrop is oldschool, it has evolved into bridgeporting

thats they way i imagined it colin, just not that many....



i wonder if the series of holes like that could cause premature wear on the side seal since that certain part of the sideseal would see multiple openning and closing edges. im sure probably not, but something to think about

Don't they call that a (swiss) "cheese port"? https://www.nopistons.com/forums/pub...IR#>/smile.png





-Ted

I didn't mean to make so many holes in the pic, but hey they are crappy doodlings anyways so no big deal. https://www.nopistons.com/forums/pub...IR#>/smile.png

i allways heard of that calles a swis chease port or a cheater bridge. huh. allright then. forget that then I'm going full bridgy!

I was thinking of trying that on a 6 port. I just dont know if the benefits outweigh the down sides, compared to a decent street port.