Re: Twin turbo in 2004 4.2l S4?????
 

haha i read the first quote on accident first and was like uhh i didnt say that. but yeah everything in the car has pretty much been rebuilt. all of the work was about 45-50k. most of which was money from my first deployment. but Im editing the vids now so they should be up soon.

Re: Twin turbo in 2004 4.2l S4?????
 

It looks a little different with the covers off

https://www.audiforum.ca/members/k04...l-v8-valve.jpg

https://www.audiforum.ca/members/k04...ing-column.jpg

4.2 Build Threads!

Re: Twin turbo in 2004 4.2l S4?????
 

Unit & rank...? :neutral:

Re: Twin turbo in 2004 4.2l S4?????
 

USMC, where you at in arizona? I'm moving to Tuscon next month. Also, hearing 800 at the crank with the 2 turbos, even if you rebuild the motor gave me a chub. Seriously, i was looking to get around 10-15 PSI and maybe about 500-550 HP with the turbos, exhaust, chip tune, clutch, and the little stuff that goes with tuning the car for more power.

Re: Twin turbo in 2004 4.2l S4?????
 

how dare you use a hammer on your car!! Roflllll

Re: Twin turbo in 2004 4.2l S4?????
 

so I guess from this guy's disappearance, we can chalk this one up to the bullshit column. I'd love him to prove me wrong...but I think him saying it makes 800 whp, and '700 wtq...I believe' just tells me he's making numbers up for fun.

Re: Twin turbo in 2004 4.2l S4?????
 

Agree.....Prove it!

Lets see the car, pics and numbers.

Re: Twin turbo in 2004 4.2l S4?????
 

One must use the appropriate tools required to service their own vehicles properly and sometimes specialty tools are needed too. You should see what tools and techniques some large charge shops use to fix your car for you! Roflllll


Would like to see more than the facebook stock pictures of the USMC S4! I can't seem to find anything on the Internet about this car. Where are the pics and build thread of this awesome 1000HP convertible? Along with the large power upgrades, I would love to see the chassis upgrades that were implemented to maintain convertible structural integrity.

Re: Twin turbo in 2004 4.2l S4?????
 

Ok, so its been a while since i've posted but this is my idea. its crazy. i know. Don't judge it by the looks of it, and think about if its worth it for (possibly) the fastest S4 ever made.

Take out the rear seats. Support the metal underneath the rear seats with more steal and weld on some turbo mounts. Run the exhaust up to the back seat into the turbos with all the other extras there, then run them right back down on the other side of the turbos and out the back of the car. (I know it seems crazy to just have turbos chillin in the back seat just wait) Get fiberglass molded to where the top of the seats typically would be to be flush with the top of the back seats. mold it around the sides and to the 'rear' windows. Take out the rear windows and mount a side intake on both sides for the two turbos. Then run the intake for the turbos back underneath the car where the exhaust came from and up to the intake manifold. upgrade pistons/tranny/head work/clutch all the little bits and get a good tune, and get the ECU programmed with the air/fuel ratios.

yeah, the car wouldn't nearly be stock and to resell would be way out of the question, but i love my car. When i bought it i said i would drive it til it died, and i still feel the same way. As far as heat and sound go from the inside of the car, you could still keep a relatively quiet nice interior of the car with a few simple things.

Put sound proof padding on the opposing of the fiberglass molded around the back where the seats used to be, and on the inside of that (closest layer to the turbos) Put a very strong layer of heat shielding. The temperature from the turbos would be a very little problem, and the sound (with good material) would be head from outside the windows, and not right behind ur ears. you get a good black coat on the fiberglass with a clear coat, and you'll have a stylish cover if its molded the way you want it to, and then you got a Twin turbo V8 that'll blow the doors off porsche 911's.

I did think about the turbo lag coming from the turbos being so far away from the intake manifold. But thats where having a V8 comes into play. You get almost your full torque from 22-6600 RPMs, So off the line the torque and relatively high HP of the tune and such on the motor itself should get her up and going for the few milliseconds of turbo lag.

Re: Twin turbo in 2004 4.2l S4?????
 

Baker, rear-mounted turbos are nothing new; although, I don't know of any on the S4. However, the whole point of the S4 is that it's a 'sporty' sedan - why bother turning a a big, overweight pig into a coupe? I don't think anyone's going to bite on that. Does anyone know if there's room to mount turbos in the undercarriage with a smaller muffler?