Well,that is what I\'d be saying if these were mine.I thought mine were big,and someone said I\'d get no power,then that someone did this! Nice though.
Primary and secondary port.
Exhaust port.
whos engine is that??? thats what mine look like now!
is it an FD engine?
I like your inverted TII TB by the way, much better, let her breath
that look about as big as you can go without loosing corner seals and keeping the oil within the control ring!!
What is the secret with the odd shaped exhaust port?, yours is the same shape?, how does it differ from the stock oval shape?
Tim has a habit of copying my ports but
I think he chickened out of of going to the limit on the intakes as I did.
rgds
Great to see other\'s doing big ports at last.
Well done Brian.(Did not happen by accident either did it?If you know what I mean.)LOL!
Regards
Carl
with my die grinder in my hand I was like a man possessed.
Seriously I spent a lot of time and effort getting these ports the way I wanted. Not too many days hence I shall commence with tuning. So far only me and Tim have posted pics of our ports who else will show there handy work??
rgds
QuoteOriginally posted by BNA_ELLIS
with my die grinder in my hand I was like a man possessed.
Seriously I spent a lot of time and effort getting these ports the way I wanted. Not too many days hence I shall commence with tuning. So far only me and Tim have posted pics of our ports who else will show there handy work??
rgds
I think the phrase you are looking for is
\'get your ports out for the lads\'
those ports look very good. with an REW, i think it would be a waste of time to port any smaller. :D
anyway, i\'m not sure if i just can\'t see it in the photos too well or if you just didn\'t do it, but i\'d advise bevelling the upper edges of the intake ports and the leading edges of the exhaust ports.
again, VERY, VERY nice ports!
QuoteOriginally posted by Carl
Great to see other\'s doing big ports at last.
Well done Brian.(Did not happen by accident either did it?If you know what I mean.)LOL!
Regards
Carl
Come on Carl,lets see some ports,I hear you like big ones!
Some how I don\'t think anyone else will be showing their ports.
rx7 community have more secrets when it comes to porting & tuning than Area 51.
Something could be \'arranged\'.I\'ve got a camera.:D
Hi Tim,
Lend us your camera and I will take some pics for you.
Anyway you have already seen some of my ports.
Nice to see your\'s and Brians are getting to be proper jobs now.
Regards
Carl
This engine (13B) made 440RWHP on RON98 (GT42R)...
Ports are pretty standard...
Learn how to use the Forum Glenn! :)
QuoteOriginally posted by BNA_ELLIS
Some how I don\'t think anyone else will be showing their ports.
rx7 community have more secrets when it comes to porting & tuning than Area 51.
Hi Brian, you have seen mine in person(ports), I think I have posted some primarys on here before.
Come on Carl, dont be shy!!!
After all mine look like Rotecknik$ ports;)
Secondaries...
What kind of boost was that at Glen?
Jase I think you the only person that would make my large ports look small if I remember yours correctly:rollin
rgds
Just under 20psi Brian.
Have you guys seen Cosmo 13B or 20B standard ports? they are HUGE!!! It is one of the reasons why 13 Cosmo engines are quite sort after.
Yes I have , that would be why a certain builder called Tim has an ever growing collection recently.
QuoteOriginally posted by gbutcher
Just under 20psi Brian.
Have you guys seen Cosmo 13B or 20B standard ports? they are HUGE!!! It is one of the reasons why 13 Cosmo engines are quite sort after.
You can go very big on the REW end plates, the RE centre plate is quite handy for size.
Thanks brian my girlfriend says I make others look small aswell:cool
Brian,
Ports look very nice, you well be surprised how un-laggy your turbo will be with those ports:)
Jason
QuoteOriginally posted by JayDee
Brian,
Ports look very nice, you well be surprised how un-laggy your turbo will be with those ports:)
Jason
Jason, yes - that is something many people forget. A nicely ported engine can have a surprising amount of power on its own.
A friend with a bridgeported twin turbo engine in his RX-7 was amazed by the amount of power the engine had, with 0 psi of boost i.e. a stack of torque right from idle.
now this is getting good.
I would post piccys of mine but the engine is back together..... sorry.
Glen, i take it that engine is dowled, do they use short dowels like the mazda stock ones or are they shorter or longer?
Regards
Tony
QuoteOriginally posted by antnicuk
now this is getting good.
I would post piccys of mine but the engine is back together..... sorry.
Glen, i take it that engine is dowled, do they use short dowels like the mazda stock ones or are they shorter or longer?
Regards
Tony
Hi Tony,
Yeah - it is dowelled, but really not the best way. This particular engine was dowelled with the short ones (17 extra dowells, each side of both rotor housings). Some people use this technique some use the heavier through bolts etc., which I believe it better.
Some people like Marty Heard (AVENGE - on ausrotary.com) don\'t believe in Dowell\'s at all, and he owns an 8.1 second 1/4 mile twin turbo 13B.
Go figure! :)
Standard Mazda dowells are still used.
QuoteOriginally posted by JayDee
Brian,
Ports look very nice, you well be surprised how un-laggy your turbo will be with those ports:)
Jason
The pics does not show enough detail but the runners and port shape are a real work of art. I expect full boost to be 5-5.5k rpm but I also expect it to get t there alot quicker than before.:D
Engines not doweled I don\'t believe in that either but to each there own I guess.
My engine isn\'t dowelled either,I have found no need to,not yet anyway.
Tim,
Do you match-port the inlet manifold? I\'m assuming you would - I know some people don\'t and are missing out on more power.
QuoteOriginally posted by JayDee
Hi Brian, you have seen mine in person(ports), I think I have posted some primarys on here before.
Come on Carl, dont be shy!!!
After all mine look like Rotecknik$ ports;)
Hi Jason,
I have put a pic up of my porting on a new thread just for you!
http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=14602
regards
Carl
QuoteOriginally posted by gbutcher
Tim,
Do you match-port the inlet manifold? I\'m assuming you would - I know some people don\'t and are missing out on more power.
I took an imprint of the ports,and laid it on the inlet manifold,then made it match as close as possible.Will have to cut out gasket as well.