We're in the dead of winter here, not much going on car wise, most of my allowable modding budget is eaten up by the '04 M3 in my garage but still, I guy can daydream, right? Just spitballin' here, but how cool would it be to find a way to fit a 2.5L 5-potter from the TT-RS into a B7 A4? (Avant to be precise because überwagons are cool! )
Off the top of my head, I was thinking one would have to find a salvage titled TT-RS to harvest parts, probably mate it to the tranny from a '07-'08 B7 S4 in order to get the 60/40 torque split diff & taller gearing (IIRC?) as opposed to our 50/50. Plus, I figure it's probably built a little stronger as well in order to handle the extra stresses from the 4.2L. Then there's the obvious fabrication and fitting issues that come with fitting a transverse mounted powerplant into a longitudinal application... tons of fun right there!
But still, if one could make it happen, probably at enormous cost that could only be justified by a true B7 hardcore enthusiast, wouldn't it be the most badass sounding A4 out there? Once tuned a bit, you get the power & torque levels of a stage 3++ 2.0T 4-banger or a S/C 4.2L V8 without the trade-offs in boost response of the former and none of the weight penalties & horrible mileage of the latter. Back to Audi's original 5-cylinder roots!
I dream...and drool thinking about it!
Cheers!
Last edited by positiv_rate; 02-08-2012 at 06:21 AM.
It just doesnt seem worth it. You could try your hand at a compound turbo setup, get all the bugs worked out, have more HP, better response, and still be under budget.
and our stock diff is 40/60 I am pretty sure, and you can get different ones for around $400 to make it 20/80.
IIRC, the 2.5 is quite a bit longer than the 2.0t, fitting it longitudinally would require quite a bit of cutting of the firewall and front clip. Making it fit would be your biggest challenge.
IIRC, the 2.5 is quite a bit longer than the 2.0t, fitting it longitudinally would require quite a bit of cutting of the firewall and front clip. Making it fit would be your biggest challenge.
and getting the axles/CV's to the front tires would be tough. You could always just move the radiator. maybe by the smic's? Still seems like way too much work to me.
Just get an s4 3.0T, they are only rated at 1mpg less than our cars!
Why would haldex be a deal breaker. Isn't this one part of the new generation of haldex which has better response time and can transfer 90% of the power to the read wheels?
Also 3.0t has the same MPG as our cars? WTF, i guess i will have to get a new car in 2 years. The only reason i stick with Audi's is because of the all-wheel coupled with outstanding gas mileage.
Why would haldex be a deal breaker. Isn't this one part of the new generation of haldex which has better response time and can transfer 90% of the power to the read wheels?
Also 3.0t has the same MPG as our cars? WTF, i guess i will have to get a new car in 2 years. The only reason i stick with Audi's is because of the all-wheel coupled with outstanding gas mileage.
I'll be getting one for sure. When they arent 50k... Or maybe in a few years I will be able to afford that when student loans are done ;-)
and getting the axles/CV's to the front tires would be tough. You could always just move the radiator. maybe by the smic's? Still seems like way too much work to me.
Just get an s4 3.0T, they are only rated at 1mpg less than our cars!
I'm all about the 3.0T. I think I'll be putting one in a B6 after my S4 is done
2.5T from a ttrs in a b7 is not worth it in my opinion with the $ + it's still pretty rare
btw CorneliusRox
WTF = 97 Ram 12v Cummins, 355rwhp/750ftlb that insanse i just saw your sig now lol
I have been going through my engine getting everything ready for a 64mm turbo and some 7x.010 injectors (maybe 7x.012). I'll need to upgrade my tranny more though and I need stronger valve springs, but with that I should be at about 600rwhp and 1200ftlbs-1400ftlbs.
Check out my 'my a4 thread' in my sig. I think I have some pics of my truck. It's definitely a much bigger project than my car will ever be.
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Originally Posted by SykoraA4
I do love the TT RS itself as well.
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