has anyone put a 3rd gen manifold on any year 2nd gen? if so? noticable difference? what mods have to be done? do you need upper and lower? throttle body? sensors? add ons and cancelations? help please. i'm sure im not the first to wanna do this. thanx

-FD LIM bolt pattern and port pattern to block is not the same, not good canidate

-S5 TII LIM good canidate to use

-Port match and bolt pattern match S5 TII LIM to FD UIM or

-Fab adapter plate for bolt pattern and runners for the TII LIM and FD UIM

-If no adapter plate, cut casting to fit TII fuel rail under FD UIM

-If no adapter plate, port and bolt pattern match using centre stud as a guide (very important)

-If no adapter plate, be careful on port matching, primary runner wall is thin on the FD UIM where you need thickness

-FD UIM requires FD TB, secondary plates have +5mm diameter

-TPS wiring fab work required to work with whatever you are using, FD TPS is FD TB specific

-BACV wiring fab work required (if you want to use it)

-IAT is FD Specific, plug IAT hole in UIM and tap 1/4" NPT somewhere in the intake for FC IAT

-FD Elbow assembly is different than all FC, Use the FD Elbow or fab it as required for your use





Pictures:



1. Picture of hood clearance (plenty) with no adapter

2. Screwdriver pointing at thin runner wall

3. Explanation, pictures of offset holes, centrestud as guide

4. Close up of (slightly shifted, for drama purposes) FD UIM gasket over FC LIM

5. FD UIM gasket over FC LIM, red shows where primary runners for FD UIM go









After port matching and making it happen, I'd rather fab an adapter plate for the sake of having better proportioned runners, and having no worries about the primary walls and the bolt holes all lining up perfect every time.



This car was N/A, and no I didn't dyno it. No numbers, sorry.

Edit: Removed a majority of my post because Colin's explanation is much better.



I may be mistaken, but I believe RE Amemiya (I can never spell than name correctly, but I think you know who I mean) sells a kit to do this, with a spacer to go between the manifolds and a 3rd gen TPS->2nd gen plug adaptor as well, but I think its a bit pricey.

FEED sells an adapter, and it's like 500 bucks or something ridiculous





For a chunk of aluminum, lol...





If you have the know how and resources, you can fab your own plate out of aluminum stock for 20 bucks

great info thanks man. pictures are helpful too. do you know of any aftermarket manifols?

colin make me an adapter https://www.nopistons.com/forums/pub...IR#>/smile.png



but yea colin definitely nailed the answer, with pictures. high five for him.



kevin.

So anyone out there with a dyno map showing hte gains of all that work?

if not that much gain...i still looks better! but i too am wondering if theres a signifigant gain.

does anyone know an exact web site or something so i can get a kit to do this or even the adapter plate. wires? anyone!?!?

Who needs an exact dyno number to tell you that straighter runners and bigger secondary plates are better for your ported engine?