flight_of_pain

i did search but came up with far too much to sift through.

i have an s4 n/a with a blown 6port in it, and a streetport 4port engine sitting on my deck. what would be the cheapest way to run the 4port, manifold wise, so that i can drive it. is there a 4port LIM that I can use with my stock UIM.
sorry if the ? is noobish, but i'm still learning

isaac

brainndropp

If you're trying to get a 4 port motor to work in your 2nd gen you will have to use a carb setup. You won't be able to use a fuel injection intake manifold and expect it to work with your ecu.

flight_of_pain

carb setup would require money, which is what i dont have would it be worth it to throw the rotating assy. from the 4port into the 6port irons, or would i be better off trying to sell/ trade it for a running 6 port engine?

thanks

isaac

brainndropp

sell your 4 port or trade it for a 6 port...there is nothing interchangable between your 4 port and your 6 port except internals and you will need an expensive rebuild kit to do that.

flight_of_pain

out of curiosity, if the LIM was fabbed to fit the 4port (no emissions), what would cause it not to work with the ecu?


isaac

brainndropp

A LOT!

pengarufoo

it will run with the stock ecu.

easiest way would be to get the 4 port manifolds and run it like it's a turbo motor with no turbo on the NA ecu.

if you have to use your 6 port manifolds there would be more fabbing/modifications involved to make it work well.

flight_of_pain

thanks pengarufoo, anybody run this setup before? all i would need would be the complete(upper and lower) turbo manifold correct?

isaac

cafcwest

Can someone tell me (or him) why he cannot bolt the 6-port intake manifolds on the 4 port motor and run the car just like a de-emissions and de-6 ported(as in taking the sleeves out) motor??

flight_of_pain

are the bolt patterns different, or just the port shape\# of ports?

Aaron Cake

iTrader: (1)

Bolt patterns between the 6 port and 4 port engine are the same, it's just the ports that are different. You can port the manifold to match...

4 port LIM will NOT bolt to the upper intake. Even if it did, the combination would be WAY too tall to fit under the stock hood.

Stock ECU will run a 4 port engine just fine.

flight_of_pain

thanks aaron, i think im going to port the manifold then and use the sp 4port.