FD3S Manifold on FC3S Engine
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FD3S Manifold on FC3S Engine
Hey guys, ive seen this mod on a few cars and i have pruchased an FD manifold thinking it was straight forward, to my suprise it isnt. Either i have to make an adapter for the bottom intake manifold or an adapter for the top. Ive seen this done a a few cars and i would love to know what the easiest solution to this is.
Hope to hear from anybody on this, thanks.
Hope to hear from anybody on this, thanks.
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You'd need to make one of these, . That's the FEED model of it, it goes from S5 LIM to S6 (FD) UIM. Also, unless you have an S5 TPS (electric) you won't be able to use the FD TB/TPS unless you provide a way for the S4 mechanical TPS to fit. It's a chore to say the least. The reason for using the S5 LIM is because it's a little closer to the S6 jazz, making an adaptor for the top to bottom or bottom to top would be the same thing. Judging from your sig ('87T) you've got a bit of work ahead if you really want it to work.
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Thanks for your replies guys, as a matter of fact im aware of that adapter you show there "barcode", ive browsed through the JDM rotary sites for a while, i also have a video from RE Amemiya with that White Super G FC they built. It HAS at least an UIM from an FD, but since the video is on my PC the quality is a little low and i cant make out if the LIM is from the FC motor or the FD motor.
Also, i should mention that i am using a Haltech on this car so the TPS i have for the FD manifold will work just fine.
Anyway, ill do a search on here for more info, thanks again.
Also, i should mention that i am using a Haltech on this car so the TPS i have for the FD manifold will work just fine.
Anyway, ill do a search on here for more info, thanks again.
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You do not have to use an adapter, you can modify the manifold to fit. Also try searching over on www.teamfc3s.org it has been discussed at length there.
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Originally Posted by LT8TurboII
You do not have to use an adapter, you can modify the manifold to fit. Also try searching over on www.teamfc3s.org it has been discussed at length there.
Originally Posted by raising arizona
Yup, all you need to do is port match the manifolds to line up... I did this and it works fantastic... The FD TPS is soooooooo much better
Let me know,
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http://www.teamfc3s.org/forum/showth...ghlight=fd+uim
There's the link, lots of good info. The search button is your friend...
There's the link, lots of good info. The search button is your friend...
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Originally Posted by ultradef
http://www.teamfc3s.org/forum/showth...ghlight=fd+uim
There's the link, lots of good info. The search button is your friend...
There's the link, lots of good info. The search button is your friend...
I will try to post pics on the process when i can. The other option i see is using side housings from a cosmo or REW engine. But that raises the stakes a bit. I have access to those engines here, but they are expensive and/or who has them in good condition dont like to part with the parts.
Thanks all for your help.
Last edited by Claudio RX-7; 09-04-04 at 01:37 PM.
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i did the swap and im still using the stock ecu
heres how you wire it if you have a s4
fd tps with tab up
prong 1 is ground=black and brown
prong 2 is (narrow)signal= green/red
prong 3 is 5 volts= brown/white
**** 4 is (full range) signal= leave unplugged because you dont have full range (s5 does)
heres how you wire it if you have a s4
fd tps with tab up
prong 1 is ground=black and brown
prong 2 is (narrow)signal= green/red
prong 3 is 5 volts= brown/white
**** 4 is (full range) signal= leave unplugged because you dont have full range (s5 does)
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So i guess the FD LIM does not match the S4/S5 engines?
EDIT: Nevermind, i found my answer on the other forum.
EDIT: Nevermind, i found my answer on the other forum.
Last edited by Parastie; 09-04-04 at 05:20 PM.
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Originally Posted by calio64
i did the swap and im still using the stock ecu heres how you wire it if you have a s4 fd tps with tab up
prong 1 is ground=black and brown
prong 2 is (narrow)signal= green/red
prong 3 is 5 volts= brown/white
**** 4 is (full range) signal= leave unplugged because you dont have full range (s5 does)
prong 1 is ground=black and brown
prong 2 is (narrow)signal= green/red
prong 3 is 5 volts= brown/white
**** 4 is (full range) signal= leave unplugged because you dont have full range (s5 does)
Let me know,
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i actually have a s5 ecu, but yours should work you just dont have full range signal to hook up, if you have a s-afc you can tell by the throttle % to be 100% sure, it should work
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Well, i just got my self a Haltech E6K and will be removing the factory ECU pretty soon, and will resolve to bolt the FD UIM onto the FC LIM and work my way from there. In the long run my goal is to get a Cosmo 13B-RE engine and build that up for max performance. Ill will post the pics of the manifold mod when i have it done.
Thanks for all your comments, if i have time i will try to fire up the engine with the factory ECU and the FD UIM to see if it runs.
Thanks for all your comments, if i have time i will try to fire up the engine with the factory ECU and the FD UIM to see if it runs.
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Ok, i just got my self a 2nd Gen intake manifold gasket and placed it ontop of the FD UIM to see how much matching i have to do, and its disappointing at worst, there is A LOT of port matching to do, and the nut holes on the FD UIM have to be opened too close to the runners, and im affraid they wont fit. I could get smaller sized nuts.
This mod is becoming more trouble than its worth, anybody here do it with success and can share the process?
This mod is becoming more trouble than its worth, anybody here do it with success and can share the process?
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As has been posted many times, you can't match the FD UIM to the S4 LIM. You must use an S5 LIM and then port-match the two halves. This is why you should thoroughly research this type of mod before you start spending money. Unless you're planning on making a lot of power, the relatively small gains won't warrant all the hassle.
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Originally Posted by NZConvertible
As has been posted many times, you can't match the FD UIM to the S4 LIM. You must use an S5 LIM and then port-match the two halves. This is why you should thoroughly research this type of mod before you start spending money. Unless you're planning on making a lot of power, the relatively small gains won't warrant all the hassle.
After thorough verification of all 3 types of manifolds, series 4, 5 and 6, i have seen what has to be done, you where right on the fact that both the s4 and s5 manifolds vary a bit, i hadnt noticed, to get the S5-LIM and S6-UIM to line up you need to use the long screw as your guide, the outter most screw holes on the S6 man. have to be drilled a bit inward so they can line up, the inner 2 screw holes on the s6 man. have to also be drilled inward and towards the main runners, and the main runners have to be machined inward to line up with the S5-LIM, and it worries me a little because it comes pretty darn close to the edge of the manifold it self and i wouldnt want to damage it.
Anyway, im hopefull that i can pull it off, if not, i will start the car with the S5 manifold installed so i can get it running first, then ill finish off the manifold mod.
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Originally Posted by barcode
You'd need to make one of these, . That's the FEED model of it, it goes from S5 LIM to S6 (FD) UIM. Also, unless you have an S5 TPS (electric) you won't be able to use the FD TB/TPS unless you provide a way for the S4 mechanical TPS to fit. It's a chore to say the least. The reason for using the S5 LIM is because it's a little closer to the S6 jazz, making an adaptor for the top to bottom or bottom to top would be the same thing. Judging from your sig ('87T) you've got a bit of work ahead if you really want it to work.
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Probably the best thread on fitting the FD UIM is this one from Blue TII, but unfortunately all the pic links are broken. The text is pretty informative though, and if you PM him he might send you the pics.
Last edited by NZConvertible; 09-27-04 at 04:21 AM.
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Originally Posted by NZConvertible
Probably the best thread on fitting the FD UIM is this one from Blue TII, but unfortunately all the pic links are broken. The text is pretty informative though, and if you PM him he might send you the pics.
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Originally Posted by NZConvertible
As has been posted many times, you can't match the FD UIM to the S4 LIM. You must use an S5 LIM and then port-match the two halves. This is why you should thoroughly research this type of mod before you start spending money. Unless you're planning on making a lot of power, the relatively small gains won't warrant all the hassle.
Any way, i have a lot of s4/s5 manifolds lying around, so i bought the FD manifold to work with. I have the Haltech now, TO4E turbo, FMIC, bigger injectors, and will be bolting it all together, my power goals with a stock motor a over the 300hp mark. Then when i have some more money ill build a proper and more powerful motor for 400+ daily driver. I used to have all that installed, but for reasons too stupid to name i blew up my motor, went broke, sold all the go fast parts, now i want power again, im sick of the stock s4 ECU. :P
Thanks for all your feedback with this.
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