the fueling of the motor is the hard part. you either have to add a fmu and another injector, or do a bunch of wiring and go with a MPFI setup. if u have money to throw around and not yield a fast vehicle then get to it. but if you are actually looking for something fast, go with a v8, everyone hates hearing that but dollar to hp ratio is much better, and with a v8 swap when your ready for more power there is a plethera of aftermarket support for it, for a TT 2.8................you have reached the end of the road and a well tuned tuner car can still whip ur ass with ease. its all a matter of what your looking for and looking to spend.
I roll my eyes EVERYTIME I read a post like this.
My untuned 3.2L single turbo, out ran MANY V8s, even a couple S-10 V8s. I had less into the build and swap than a few of my friends who installed junkyard v8s in thier S-10s.
With a TBI set-up, the best bet is to add auxilary injector(s). Using an FMU will only go so far, though it would be enough for a low boost application on a fairly stock engine. Swapping to larger injectors from a 4.3 or 5.7 might almost be needed, depending on how far you go. Then tuning the bin file on the chip will be needed.
Going MPFI will get a better dispersion of fuel, but is not completly needed.
You can also convert just the intake, while retaining your existing ECM with only mild wiring changes. But again tuning the bin file will be needed.
A turbocharger will NOT increase gas milage, no way no how. The turbo no matter how you look at it, is a restriction in both the intake and exhaust, and because of this fuel comsuption will go up silghtly in off boost situations. A turbo charged engine will usually get better fuel economy over a similar power output naturally aspirated engine, due to the additional fuel only being needed when in boost.
'Bu: The daily driver
Tha toy: 1973 Datsun 240z 12.71 @115
Old set-up: 1985 GMC Jimmy. 3.2L Turbocharged/Intercooled hybrid. 13.873 @ 99.08
Currently being reconstructed.
"If you're not living on the edge, You're taking up too much space."