I just wanted to know if turbocharging a N/A 13b from a S4 is worth being turbocharged? Ive got 130K on the odometer but my car is realatively good condition. should i boost it or should I just get a T2 engine? Please let be know which is more practical.

 

lol boy your gonna get FLAMED hardcore........ theres like a million threads on this and writeups.... your susposed to use the search feature before u post somthing like this!! your new obiously tho.....

and im a nice guy, so i wont flame u but others will!!!

basicly id say NO dont turbo a NA motor
its alot more expensive and time consuming!!
best options( ive been down both roads now), 1 buying a turbo II rx-7 in the first place or, 2. u swap a turbo II motor and part or all of the drive train in... if u search for turbo II swap thres plenty of detailed info on whcih route u can go during a swap.

i ended up finding i liked having the real turbo II more than the swap car.....

 

More expensive? You've gotta be smoking something... throwing a turbo on an n/a is cheap as hell. Doing it *PROPERLY* and actually designing it to get some decent power is costly (and what people don't ever do)

 

throwing a turbo on it and having it blow up 10 miles down the road isnt CHEAP lol.....

and it isnt cheap if you dont know what your doing, u do have to custom fab manifolds and piping and ect.... as the turbo stuff doesnt just bolt up to a na....

 

sounds like you don't actually know much about what's truly involved in a turbo n/a setup. i've been apart of such a project. works out pretty damn good! quick as hell too. FOR ALOT LESS MONEY, until you wanna get crazy

 

Even if you want to get crazy it's not nearly as bad as everyone thinks. And what's everyones obsession with thinking it'll blow up 10 miles down the road? I've put well over 30k miles on my car with a BNR stage 4 at or above 15psi, it's all about who does it and what they know, and how well they can tune.

 

No.
To do it "right" means a lot of time and money.

I don't know what your goals are with the car, but once the power levels start to rise over 200hp at the wheels, the non-turbo drivetrain gets fragile.
This would almost require a full Turbo II drivetrain swap.

Please check the FAQ stickies at the top before postings questions like this.
This has been covered too many times before.


-Ted

 

And that isn't the case with a T2 swap Ted?

 

Basically, if you have to ask, no. This is well covered in the FAQ and archives. The only reason I am not closing this thread is because the question was should the engine be turbocharged, not can it.

A few things to consider.

If you know the condition of your engine, and have the technical knowledge to turbocharge the NA engine, then go ahead. Depending on how you do it, you can spend either more or less money then a TII swap.

A TII swap is about the same amount of work, but more straightforward. It is well documented and has been done probably multiple tens of thousands of times.

What a lot of people don't mention about the TII swap is that you may not know the history of the doner car. How does the transmission shift? Rear end worn out? Engine ready to die?

 

just curious how much DID it actaully cost??, and how much time was put into it?? was custom fabing required?? tuning??

i know its doable and can work succesfully, just i belive it requires more skill or time then alot of people have.....

 

in my opinion you should just do a TII swap

 

Adding a turbo system to an NA 13B is not better than selling the NA RX7 and buying a TII, unless you like fabrication / designing stuff.

I'm putting my own supercharger swap on my resume, if I ever get the damn thing done (megasquirt-n-spark)

 

Thanks for taking the time to help a newbie. all I really want out of my engine is about 180-210hp and a really nice BOV sound. I dont want too much power. Im leaning a lot towards just finding a T2 but im no expert with engine swaps and i dont have 2-$3000 for a shop to do it. I bought an another S4 from a guy in GA, and he said I could take the sequential twin turbo from his FD and stick it on my S4 and run low boost levels, he seemed like a pretty knowledgeable guy(all he had in his driveway was Rx7s) but after reading all this I dont know what to believe. I guess trial and error huh? Thanks again though.

 

Sticking the FD twins on an FC is not very possible for cheap, especially if you expect them to work in sequential mode.