are we all talking about the same Jim?

anywho- I think it slipped by alot of us about using the FD upper on a N.A lower, at least it slipped by me https://www.nopistons.com/forums/pub...IR#>/blush.png

yea i completely forgot it was na n/a lim, lol. oh well.



kevin.

[quote name='Cheers!' date='Apr 26 2005, 11:46 AM']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.


[/quote]



I was not looking at swaping manifolds for increased horsepower or "performance gains" as you put it. I only wanted to swap to FD maifolds because I am more familiar with the fd3 and it's throttle body etc.I was only looking to see if I could swap the intakes to something that I am used to. Come on man, Performance gains and naturally aspriated should not even be in the same sentence. https://www.nopistons.com/forums/pub...#>/biggrin.png

Regardless It seems easier at from what I understand to just leave it be and get familiar with the odd s4 N/A manifolds.





Thanks for the input.

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

I agree... if you aren't looking for performance gains... just increase your knowledge about another rx7 component.

[quote name='Fd3BOOST' date='Apr 26 2005, 05:38 PM']I was not looking at swaping manifolds for increased horsepower or "performance gains" as you put it. I only wanted to swap to FD maifolds because I am more familiar with the fd3 and it's throttle body etc.I was only looking to see if I could swap the intakes to something that I am used to. Come on man, Performance gains and naturally aspriated should not even be in the same sentence. https://www.nopistons.com/forums/pub...#>/biggrin.png

Regardless It seems easier at from what I understand to just leave it be and get familiar with the odd s4 N/A manifolds.

Thanks for the input.

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


[/quote]



You can always polish the S4 manifolds to a mirror finish like your FD ones.. Yum.. those polished FD ones you did on yuor blue car are so nice...

[quote name='Cheers!' date='Apr 27 2005, 04:43 AM']You can always polish the S4 manifolds to a mirror finish like your FD ones.. Yum.. those polished FD ones you did on yuor blue car are so nice...


[/quote]





Why thank you sir. https://www.nopistons.com/forums/pub...#>/biggrin.png Yea I suppose I will just dress up what is there. Knowing my dad he will give it some weird ass two tone paint job anyhow.

I actually think a S4 upper looks nice just the way it is

when its clean its naturally shiny, paint the fins with some black paint if its worn and it looks awesome as is.

[quote name='Rob x-7' date='Apr 27 2005, 03:45 PM']I actually think a S4 upper looks nice just the way it is

when its clean its naturally shiny, paint the fins with some black paint if its worn and it looks awesome as is.


[/quote]





Yea well this car was about as dirty and ugly as could be. It might make a difference with some new paint and a fresh engine bay.

the finish on the upper is quite durable, go at it with some degreaser and a pressure washer and I bet its good as new under there, as long as it wasnt corroded that is