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-   -   My first half bridge :) (https://rotarycarclub.com/showthread.php?t=3827)

-xlr8planet- 08-30-2008 08:19 PM

My first half bridge :)
 
I started today. I gave it about 4 hours of work
No work on the bowl or manifold side port ... yet

Im using a dremmel and a small carbide bit. Its all I was able to find

http://img222.imageshack.us/img222/2...2008603uk4.jpg
http://img214.imageshack.us/img214/1...2008604ge5.jpg

ok, here we go
http://img401.imageshack.us/img401/3...2008605ej9.jpg

and this is as far as I was able to go today
http://img261.imageshack.us/img261/5...2008619xo2.jpg
http://img241.imageshack.us/img241/5...2008620dy1.jpg

Phoenix7 08-31-2008 02:06 AM

damn, I don't know much about porting so I can't really tell if it's good or bad. How far along are you?

-xlr8planet- 08-31-2008 10:14 AM

Quote:

Originally Posted by phoenix7 (Post 41520)
damn, I don't know much about porting so I can't really tell if it's good or bad. How far along are you?

its not even close to finished so ... we cant tell now if its good or bad :)

Rogue_Wulff 08-31-2008 12:49 PM

A dremel is slow, but less chance of making a major error.
I also like the tape covering the area you don't want to hit. Those carbide bits can jump out of the hole, one hit in the wrong spot can ruin the plate. They can jump without warning, even when you have used them for years.
When it comes to porting, getting in a hurry is the fastest way to make mistakes. Take your time, and it should turn out good. Just remember that the entire port area needs to be shaped as smooth as possible to acheive the best flow pattern.
I'm guessing you are planning to street port the center iron, since you say it's a 1/2 bridge. What type of induction are you planning to run?

-xlr8planet- 08-31-2008 02:39 PM

Quote:

Originally Posted by Rogue_Wulff (Post 41549)
A dremel is slow, but less chance of making a major error.
I also like the tape covering the area you don't want to hit. Those carbide bits can jump out of the hole, one hit in the wrong spot can ruin the plate. They can jump without warning, even when you have used them for years.
When it comes to porting, getting in a hurry is the fastest way to make mistakes. Take your time, and it should turn out good. Just remember that the entire port area needs to be shaped as smooth as possible to acheive the best flow pattern.
I'm guessing you are planning to street port the center iron, since you say it's a 1/2 bridge. What type of induction are you planning to run?

ITBs

I got a set of cbr600rr itbs. They are 40mm and came with a nice tps and 8 injectors

I already have a megasquirt

Eatmyclutch 08-31-2008 05:42 PM

Looks like fun.

WE3RX7 08-31-2008 09:30 PM

Looks good, good shape for now, still probably need to do the backcutting and smooth it out, but should make for some fun!

Go FULL bridge :) 1/2 bridges are for quitters!

Nutsid 09-01-2008 03:39 AM

Quote:

Originally Posted by Rogue_Wulff (Post 41549)
A dremel is slow, but less chance of making a major error.
I also like the tape covering the area you don't want to hit. Those carbide bits can jump out of the hole, one hit in the wrong spot can ruin the plate. They can jump without warning, even when you have used them for years.
When it comes to porting, getting in a hurry is the fastest way to make mistakes. Take your time, and it should turn out good. Just remember that the entire port area needs to be shaped as smooth as possible to acheive the best flow pattern.
I'm guessing you are planning to street port the center iron, since you say it's a 1/2 bridge. What type of induction are you planning to run?

I was always curious as to what the difference was between a full bridge and a 1/2 bridge. I didn't realize that the irons weren't port matched before now. I am actually going to begin porting my extra irons as a full bridge soon since they are just laying around and I want the extra practice on porting so that when I get the engine I plan on using as a permanent fixture in my FB (right now a street ported 12A is ready to drop in short of the clutch/flywheel/pressure plate needing to be put on). This was the guinea pig engine to see how well I can get a street ported engine running before doing a TII street port and bigger turbo to swap into my FB.

I can't wait to see the finalized project, Gabriel.

-xlr8planet- 09-01-2008 09:15 AM

Quote:

Originally Posted by Nutsid (Post 41645)

I can't wait to see the finalized project, Gabriel.

My trip to the states will take a big hit on my savings, but I guess it will be worth every penny.

:)

I think I will finish this engine probably mid next year

-xlr8planet- 09-02-2008 09:33 PM

I worked a lot today :D

http://img255.imageshack.us/img255/2...2008625wt7.jpg

diabolical1 09-25-2008 11:39 AM

are you planning on turbocharging later on down the road? just curious as to why you decided on a half bridge instead of full.

all in all it looks like it's all coming together. let me echo the sentiment that you should take your time. it's best to make sure it's done right as opposed to just "done".

-xlr8planet- 09-25-2008 01:00 PM

I wont go turbo later on.

I plan on cracking open this engine at least a couple of times, so if I see fit going full bridge later on .... hehehe I will.

I will stay with the h bridge + 100shot of NOS for now.

jtbshaw 09-27-2008 09:34 AM

On my last 1st gen, i ran the same setup that you are going with....1/2 bridge and 100 shot. The 150 shot was insane. I also planned to go turbo, but couldn't come off of the spray. You can read more about my old setup here: http://www.cardomain.com/ride/852654. Looks good so far, I'm sure that you will have a blast with it when you are finished.

Todd B.

-xlr8planet- 09-27-2008 09:29 PM

Quote:

Originally Posted by nolimitind (Post 48325)
On my last 1st gen, i ran the same setup that you are going with....1/2 bridge and 100 shot. The 150 shot was insane. I also planned to go turbo, but couldn't come off of the spray. You can read more about my old setup here: http://www.cardomain.com/ride/852654. Looks good so far, I'm sure that you will have a blast with it when you are finished.

Todd B.

Opening link right now :D

BigTeddy 10-17-2008 03:24 PM

http://i101.photobucket.com/albums/m...Halfbridge.jpg


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