Finally the porting started
#1
Finally the porting started
Well so long of not working on the engine, I decided yesterday to start the port. Guess what it is?
It's not fully done as you can see, especially on the bridge side.
It's not fully done as you can see, especially on the bridge side.
#4
Senior Member
Joined: Dec 2002
Posts: 613
Likes: 2
From: North Atlanta, GA
Re: Re: Finally the porting started
Originally posted by Felix Wankel
in the water seal
in the water seal
Not for street driving though...i'm moving away from mine for now. Got tired of always working on the car and just using it for racing. Feel like making it more daily drivable, i want to put a stock port in it and try to make it go low 14's.
Trending Topics
#10
Well I have more pictures, here is a link to mazdatrix for more explanation about J-bridge: http://www.mazdatrix.com/faq/portbp.htm
My pictures:
My pictures:
#15
Originally posted by Cody
Hmm. That kinda looks like a big sloppy *** mess. hehe...at least it matches the car.
Hmm. That kinda looks like a big sloppy *** mess. hehe...at least it matches the car.
I am using carbon apex seals.
#20
revhed - they were talking about the car itself. But anyone who knew half of the work Omid put into that wouldn't have called it a mess anyway. How many folks have their FBs sitting on FC suspensions anyway?
#21
Thanks for the support guys. Yeah lots of work. I think it's over 2000hours now. Yeah some people say the car looks like a mess, but obviously they haven't tried doing a real project. It's getting there. Some more time and MONEY and it will be done.
#23
"J or Monster Port
The J ported engine (also known as monster port) is as big as conventional side-plate porting can go. It is the same as the bridge port in design, but the bridged port is now fatter and extends past the face of the rotor and into the housing’s water seal / O-ring requiring the need for the seal to be cut back and filled with a metal type sealant such as "Devcon", plus, depending on the side plate used, the water gallery requires blocking off and filling on the side plate and the rotor matching.
Cutting into the rotor housing is also needed for port matching. The main problem with this design of port is a short life-span as water does and will seep through the seals. The main field where a J-port is likely to be seen is on the track where restrictions don't allow peripheral porting, or a slightly wider power band is desired. Typically around 300hp can be expected.
PRO'S: Slightly better power than a bridge port (5 to 10%) without the expense of a PP
CON'S: Short life-span, 6-12 months / 5,000-10,000km, narrow power band, need for free-flowing/loud exhaust system, poor drivability"
#25
I don't think there is a point to *any* bridgeport unless its a track car or if you don't drive it often (if a wild engine in my SVO only lasted 20K miles, that'd be fine since it gets driven about 2000 miles a year).