im sure the LIM could work with out any problems but the 88 is a 6 port vs a 4 port FD/RE. im almost positive that the UIM will not fit the NA LIM.(ask vosko to look at how i had to modify the T2 LIM to work with an NA UIM, not a whole lot of work though, just not drop in). also, for the UIM, u want to keep the because of the dynamic chamber. as far as manifolds id look into getting a S5 NA UIM and LIM. however im not sure if youd need any other intake parts off the S5. im also almost positive that any LIM from a 13B will mate to any 13B at the engine, again bearing slight differences between a 6 port nad 4 port. another thing is cause of the shape, a T2 inatke sits higher than the NA, might have problems with the hood closing. i did on and FB, however.



hope i didnt confuse yall....

jim had a fd upper on a s5 lower with a N/A hood and it cleared fine

[quote name='Rob x-7' date='Apr 25 2005, 06:56 PM']jim had a fd upper on a s5 lower with a N/A hood and it cleared fine


[/quote]

T2 LIM and FD UIM? the NA LIM is shorter than the T2, and the NA UIM is taller than the T2.

Is the S5 lim 4 or 6 port?



Just to share, I opened the engine up yesterday. Looks like the the bearing on the eshaft was worn slightly. Not sure the part name but where the input shaft slides in near the rear main. That threw things off a bit, the corner of the apex seal was jarred loose and gouged the rotor and the housing. Either that or the lack of oil caused the seals to chatter or just freeze up allowing the coprner to fall into the combustion chamber. Either way it made a mess of the parts. So if anyone has a reusable rotor and housing I am in the market.

S4 NA lim is 6 port, S5 NA lim is 6 port.



How did the FD stuff get started in this thread. I thought FD3sboost's engine he was working on was a NA engine. IF you can use a FD UIM on a NA LIM that is news to me.

[quote name='Fd3BOOST' date='Apr 26 2005, 08:03 AM']Is the S5 lim 4 or 6 port?



Just to share, I opened the engine up yesterday. Looks like the the bearing on the eshaft was worn slightly. Not sure the part name but where the input shaft slides in near the rear main. That threw things off a bit, the corner of the apex seal was jarred loose and gouged the rotor and the housing. Either that or the lack of oil caused the seals to chatter or just freeze up allowing the coprner to fall into the combustion chamber. Either way it made a mess of the parts. So if anyone has a reusable rotor and housing I am in the market.


[/quote]

on jims car? 4 port.



you can also go to mazdatrix and check out the gaskets and see how they differ.



http://mazdatrix.com/c-2.htm

[quote name='Cheers!' date='Apr 26 2005, 05:52 AM']S4 NA lim is 6 port, S5 NA lim is 6 port.



How did the FD stuff get started in this thread. I thought FD3sboost's engine he was working on was a NA engine. IF you can use a FD UIM on a NA LIM that is news to me.


[/quote]





Ok so the tii is the four port then? I would not have to ask these questions If I happened to have them all handy to compare. I have the N/A s4 lower. I already know that won't work with an FD uim. I was under the assumption that I could use a S5 6 port with a FD uim. I guess this is not the case? Are all the N/A lim's shortys?

[quote name='treceb' date='Apr 26 2005, 06:43 AM']on jims car? 4 port.



you can also go to mazdatrix and check out the gaskets and see how they differ.



http://mazdatrix.com/c-2.htm


[/quote]





Hey thanks, at least now I see where the ports meet. Looks like the FD and the TII would work well but the tii lower would not work with the N/A irons.



Might just be bettter to leave it all stock and just be done with it.

https://www.nopistons.com/forums/pub...IR#>/blink.png

A 4 port manifold off a turbo engine can only work with a turbo engine.

A 6 port manifold off a NA engine can only work with a NA engine.



I'm not sure about the interchangeability between using S4/S5 LIM or UIMs. I don't know what teh difference is.



My comment is: You should fix the 6 ports on your S4 NA and don't worry about performance gains from the manifold. Unless you can polish the internals of it. To add to why you shuld make yuor 6 ports work:



An engine's performance is not measured by peak Horsepower, it's a measure of the area under the HP or Torque curve (HP is calculated from torque - so same thing). When you wire your 6 ports open, the area under the curve decreases because you have shitty power at the bottom end. You would lose in a simple drag race off the line if you start at anything below 5000+ rpms if the car beside you had his 6 ports working.



Oh and don't bother with the electronic 6 port, that is just another thing to go wrong. Stock worked, so fix it and keep it stock.

in NA form, you want the dynamic chambers "twirling" effect to speed the flow of air through the intake.

the next best thing to the stock S4 intake is the S5 intake. only cause it flows better. how much, i dont know.



but yeah like cheers said, polish/port the intake for better flow.