ultima 1

hi, I have a well modded s4 tII with a BNR turbo in a first gen car (300+ HP) and I am exploring the option of putting in an FD motor instead.
I am looking for a fun strong, reliable daily driver and I think that despite having to handicap the FD motor with a single turbo only, for chasis clearance, I want some advice about how much better (or not?) the FD motor will make the car perform.

asianguy02

iTrader: (4)

stick with what you have, getting the motor mounts to fit correctly will be a pita in an FC. as far as performance is concerned, I believe the main high points of the FD engine is the sequential turbos since the internals are essentially the same, and in fact I think the FD rotors have a lower compression ratio compared to the TII ones. on account of safety when running slightly higher boost.

Someone may jump in and correct me, but I believe your better off where your at and just porting the motor you have and throwing a bigger turbo on.

canonize-ryda

thought he said "first gen" not FC. anyways making 300 plus in a first gen is way more than i would expect to want for a DD. do u have this fd motor just laying around? or do u have to buy it and if so couldnt u just throw that money into the ride some other way to get desired performance? i have a FC with about 180.. 300 would be awesome to have.... IMO keep the tII engine

asianguy02

iTrader: (4)

its a first gen with a TII engine he says, but still you have a valid point

Aaron Cake

iTrader: (1)

No point going to the 13B-REW if your goal is only 300HP. The REW has bigger ports, a better chrome coating on the housings, and a thicker rear iron. But none of these come into play unless you are going for higher HP, on the order of 500 HP and above.

ultima 1

Thanks guys,
Yes it is an fb. I was going to sell the complete running motor for money
to get the FD engine. It's at least 350 HP we figure and it has a ton of goodies including most of the stuff polished as well.
My understanding was that the FD engine would easily send out a lot more horsepower without much modification. The japanese blocks are reasonably priced and I thought that to go ten years newer in technology, with more horsepower, that it might be money shrewdly spent.
I haven't driven many FD cars and if the engine set up is smoother and more streetable, then i would be more interested.
If the setups are comparable, then i might get a newer ECU than the E6K, one that is easier to tune, like a simple but newer haltech, and put some miles on my car.