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twilightprotege said:
I haven't removed mine, but I think your IM is not right...
J-Spec Intake Manifold
- Thread starter twilightprotege
- Start date
I haven't removed mine, but I think your IM is not right...
twilightprotege
Member
- :
- 2001 323 Astina SP20 (P5)
easy to see my dilema isnt it!
that's why i'm wanting to check what's what. maybe i have another spec manifold compaired to everyone, but that would be silly from a mazda manufacturing point of view.
that's why i'm wanting to check what's what. maybe i have another spec manifold compaired to everyone, but that would be silly from a mazda manufacturing point of view.
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twilightprotege said:
Could it have been a fluke? Maybe some how you IM made through to the production line and maybe it shouldn't have?
Stranger things have happened...
twilightprotege
Member
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- 2001 323 Astina SP20 (P5)
maybe......
maybe it's some thing mazda has done because the aussie fs-de is a cross between the us version and the Japanese fs-ze????
maybe it's some thing mazda has done because the aussie fs-de is a cross between the us version and the Japanese fs-ze????
According to the manual for the 2001 protege, the VICS system is called "Variable Inertia Charging System". The short round runners are not supposed to go to the plenum. To understand why, you need to understand intake inertia charging and I don't feel like getting into that right now. (VTCS is the other thing)
I don't know how the JDM manifold works, but that's how the USDM manifold is set up. Your Aussie manifold is probably the same.
I don't know how the JDM manifold works, but that's how the USDM manifold is set up. Your Aussie manifold is probably the same.
twilightprotege
Member
- :
- 2001 323 Astina SP20 (P5)
yeah that's exactly what i described. the VICS runners do not connect to the plenum direct, but edwin seams to be saying different
twilightprotege
Member
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- 2001 323 Astina SP20 (P5)
yes edwin, please clarrify this a bit more
Actually maybe the disconnected plenum is to provide an accessible air supply. Basically it is like an air capacitor. if the VICS opens it might pull air from a "air reserve" to insure constant air flow. Maybe its when the VICS is closed...i m kinda ****** up right now. But it sounds like an air storage chamber especially if it doesnt offer additional air flowing. One problem with the MAN and our situation is that albeit the great FAQ..thanks for that...he has a 1.8 L which in my knowledge wouldnt offeras much in understanding the 2.0L FS-DE/ZE engine. I think the aussie/e-spec engine is a hybrid fs-de/fsze engine. tell me more twilight what do u want to do....with this knowledge?
twilightprotege
Member
- :
- 2001 323 Astina SP20 (P5)
well...what i'm trying to work out is how to mod the IM for even better power now. what i was thinking, is if the VICS butterflys do indeed open at high rpm, to drill through the chamber to the plenum. when the vics is close it wont make any difference, but when open, shorter runners to the head...but...i'm guessing a more turbulant flow...which sort of brings me to my next idea...
a total guttering of the lower half of the IM - like what greenmp3 (i think that's his name) has done, but leave the top half alone. so once again it will be ok at low rpm because the runners are still the same length, but at high rpm - even more air can get to the head.
anyway, i was going to do a bit of testing on the IM in the new year (hence all the q's). see what the VICS butterflys are definately doing in my engine (coz for all i know they could be opposite to you guys), do some very close inspections of the IM, maybe get a few people to check it out and see what they think.
the only down side to playing with the IM is getting tools down into those damn hard to reach places....grrr...or then again....put the money into a custom IM
a total guttering of the lower half of the IM - like what greenmp3 (i think that's his name) has done, but leave the top half alone. so once again it will be ok at low rpm because the runners are still the same length, but at high rpm - even more air can get to the head.
anyway, i was going to do a bit of testing on the IM in the new year (hence all the q's). see what the VICS butterflys are definately doing in my engine (coz for all i know they could be opposite to you guys), do some very close inspections of the IM, maybe get a few people to check it out and see what they think.
the only down side to playing with the IM is getting tools down into those damn hard to reach places....grrr...or then again....put the money into a custom IM
twilightprotege
Member
- :
- 2001 323 Astina SP20 (P5)
i just wish
1) theman would continue in this thread to explain more about the IM. afterall he did say we all have dual runners...urr...why doesnt mine and have you checked your own (j-spec and old one)??? also he seams to go away from threads when people question his knowledge. and
2) there were other people that have taken their IM out and REALLY looked at it....maybe this j-spec IM is BS afterall???
1) theman would continue in this thread to explain more about the IM. afterall he did say we all have dual runners...urr...why doesnt mine and have you checked your own (j-spec and old one)??? also he seams to go away from threads when people question his knowledge. and
2) there were other people that have taken their IM out and REALLY looked at it....maybe this j-spec IM is BS afterall???
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The FS-ZE manifold is pretty decent. As for why your IM is wierd? I don't know. I'll take mine off sometime soon.
Um, Maybe drill holes so that the "short" runners are then connected to the plenum? Then it would do what you wanted it to. Or rather, what it is supposed to do?
Um, Maybe drill holes so that the "short" runners are then connected to the plenum? Then it would do what you wanted it to. Or rather, what it is supposed to do?
twilightprotege
Member
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- 2001 323 Astina SP20 (P5)
yeah that's what i want to do....will definately be thinking about it
p5sundevil
Member
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- 03.5 MidnightBlue p5
lol, bumped after 7 months =), but i too am interested in this...
also has anyone ever looked into getting some specs from essential speed since they supposedly have an aftermarket IM available for the fs.....
also has anyone ever looked into getting some specs from essential speed since they supposedly have an aftermarket IM available for the fs.....
anarchistchiken
Member
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- 03 Silver Protege5
Holy s*** I have no idea what anyone just said. Whatever happened to mr Man anyway?
p5sundevil
Member
- :
- 03.5 MidnightBlue p5
TheMan, from what I have seen, hasnt been around these forums since about when this thread died last december, i know when the other protege forums had their issues and evaporated is about when he stoppped checkin in. Too bad cause even with the attitude sometimes he knew his s*** about the BP and FS platforms, not to mention about every other mazda platform.
also for those interested there is an entire FS-ZE engine on ebay right now that was at 450bux last night, for that much it is worth it alone for the IM and cams....not to mention having a spare header to have work done to, or bottom end.
also for those interested there is an entire FS-ZE engine on ebay right now that was at 450bux last night, for that much it is worth it alone for the IM and cams....not to mention having a spare header to have work done to, or bottom end.
