Ok im am new to the turbo/audi thing. After reading some posts on after-market turbos, I am going for the gt28rs. I see these new on ebay for about $5-800. Will any of these work

http://search.ebay.com/search/search...rs+&category0= (If this dont work I just put gt28rs is the ebay search and got 20+)

I have found a guy at a local shop that could make me a custom manafold cheap. And will be talking to a shop that can do custom exhaust cheap. Nothing is done to the car yet cause I just bought it. However im about to order a DV (forged or Bailey) havent decided which one. Oh the car is a 01 A4 1.8T Q.

 

dont try and piece ur kit together

go to www.rennart.com and they have everything u need to get it done right and w.o a headache

 

from customer experience, i would say no, don't do it

we had 3 different jobs to do where customers brought in their cars(towed in 2 cases)after they got their GT28R model turbo from ebay, i have not seen one that works yet from there

stick with one of the Audi tuners listed here >>tuning links<<, unless you are competent with fabrication and have the tools handy, do it yourself then, a GT28R is not a straight bolt on, we are fabbing up a custom downpipe for a Saab 9-5 right now, we got a turbo from Turbos Direct in Arizona at the customers request and have since installed it after many hours of blood, sweat and tears (look at the Garrett Turbo website and check out either the GT2860R/707160-5 or the 707160-7 for more info)

 

I am soo glad I asked first. I know you've saved me $$$$ and stress. The renn=art site is great and most likely cheaper than what I would of spent piecing a kit together. One more Q, I see exhaust up to 2.75" are there 3" out there? I seems that renn=art is also cheaper on there exhaust. (from what i've seen anyways) Once I figure out how to get pics on here I have a Q about the trans stable bar.

Big thanks from the newbie!

 

don't worry about the 3" exhaust piping, its needed if you are pushing mad boost and making serious HP numbers, best to keep as close to stock or just a bit larger...my SR20DET had a 3" system and it was super loud too...hard to find a high flow cat in a 3" size and try to keep your car "emissions capable"

good luck with your 1.8T endeavors

 

Did'nt think about how loud the car would be maybe Ill just get a cut-out and test pipe with a

2.75" exhaust. I figured that Id get a test pipe and hold on to the stock cat so when the paper

comes in the mail I can temperaily put it on for the test.

 

You are talking about modifications which will require some serious $$$.

I am considering an exhaust cutout mounted just behind the cat, which I will most likely have welded to the stock manifold when I replace the clutch and flywheel (should have on mon or tues).

I am new to the A4 as well and know very little about what is compatible. I would like to install a larger turbo in my car, but keep the boost stock for now. I am an avid and well honed machinist with access to a metal shop with a CNC machine and other various metalworking tools, which I could use to cut flanges and weld manifolds.

I think that my A4 would not know the difference between a GT28/35 and the stock turbo other than the increased lag from a higher A/R ratio. Running stock boost, with a fuel pressure regulator installed, I am guite certain that I will be able to increase my HP numbers dramatically due to a decrease in resistance in the turbine at higher engine RPMs. I will lose some of my lower rpm torque, but I see it as a benefit because I will be less likely to spool and get better mileage while driving around town.

What has caused me to consider this is a 1.8L engined vehicle running 10 psi, yet managed to produce nearly 200 hp. I am contemplating that the difference is relative to three major aspects:
Higher AR ratio
Better intercooler
Lower exhaust resistance

I hope to approach two of them and still have room for major improvements.

 

THE labor would offset the cost saving of peacing the whole thing together.
There is optional savings, unless you do all the work, it be better that you buy full kit and be done with it in 6 hours at local shop.

 

most of the gt28rs you find on the internet are already made for nissans. A true gt28rs is gonna cost around 1000 to 1200 from there if you want to do it on your own and use your stock manifold go to a turbo rebuild shop and for 80have them machine on the exhaust housing from the kkk. Definately save cash since a kit runs about 1500

 

So what thoughts do you guys have on a system like this?

http://www.awe-tuning.com/pages/shar...amp;IL=gt28rb6