From reading threads on these forums, I was lead to believe that our little 1.8 liter engines are capable of much more horse power from turbo/fuel/tune upgrades. I just went to a shop that does tuning and said that it can not be done. That to jump from 150 or 170 hp to 300-400 is unfeasable. And yes, I do search. From what I have learned is this:
GT28rs and up are considered to be the official big turbos (full and not eliminator)
For the GT28rs you will need:Exhaust manifold, Turbo, Clutch, Suspension, Custom Intake, MAF(not for 01+), Fuel Injectors (440cc/630cc), MBC/EBC, Exhaust, Mounts, FMIC, AFPR, Fuel Pump (Walbro255), and a Tune. Capable of 400chp
GT2871: Same setup as GT28rs and is capable of 400-450chp. "The .63/.64 A/R or the .82/.86 A/R. The .63 and .82 are T3 flanged, and the .64 and .86 are T25 flange. T3 flows better. With the .82 you will have more lag, but more topend power. You also will not have to swap out rods. With the .63 you will have much faster spool (20+psi before 4k), but you will have to swap out rods."-quoted from different forum
GT3071r: Rods must be replaced and 630cc injectors are used. Except now you will use a different manifold which is the tubular or log used for larger applications. "Cast log styles spool quicker but can be restictive at topend. Equal length tubular manifolds don't spool as quick but are beasts on the topend."-quoted from different forum
GT3076r: Same setup as the GT3071r
I learn that the GT3076r is the largest one want to go for a street car. Anything larger is purely a track car. Is the info I put down correct? What more is needed before you actually start to enter the territory of the engine build? What is the whp for each setup as I am convinced the shop person was wrong? Maybe it is just an Audi 1.8t thing (not bragging of these little headaches, just saying maybe they work different than other cars when it comes to tunes and can surprise the crap out of people of what they are capable of)
And so I can add this thread to my list of subscriptions, can someone explain the best t-series turbo set up for my car as she is stock (with stock internals)?
Thanks!
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