More Info on this DREAM build Please !!! Prettiest Eye Candy I've ever seen. Would you have done anything differently ?? I will be Building my A6 soon !!! By the way the Bore, your Built heads and quick spooling Turbos are why this Engine Revs so quickly !!!
As a whole, I wouldn't do
much differently. Here are a few things I was proud of, and some things to think about:
Machine shop, Import Engine Supply did a great job on the block/heads/crank/ and verifying pin fitment/rod fitment. They Spec'd everything down to the 10,000th, and taught me a ton..... just make sure you tell your machinist - better yet, write in paint pen on the crank - to not fill in the crank pin hole when balancing the RA.
Be sure to transfer the oil pump cog from the 2.7 crank. They are different sizes. 10 minutes in the freezer and install is a piece of cake.
Install the front and rear flanges with oil pump chain and tensioner right after you get the rotating assembly in. THEN do the other things like oil pump/upper oil pan.
Speaking of oil pump/upper oil pan, if you go with main studs, be sure to test fit, grind, and re fit until these will fit with clearance on pump/pan with the main studs torqued. Do this prior to ever pulling the crank out of the plastic.
Plan for many, many hours when file fitting your rings.
I would use some assembly lube without Moly' next time. The oil filter on change after first start up weighed a ton.
I would consider skipping on the non-stretch headbolts next time - just because it sucks cracking open your valve covers again after its starts and warms up but before you drive it... It is good to have the insurance though. Also, if you go with 034/Eurospec Headbolts, they use the regular 12pt not the polydrive. I was kicking myself and cursing them for a week while I waited for the 12pt to arrive.
Lots of questions still to be answered though:
- How will these intercoolers perform on this setup?
Will the RS6Rs flow enough for a 3L to take advantage of the build heads?
Will the clutch hold? (I was on the fence between the ceramic and the feramic. I went with drivability and crossed fingers)
Damn did I torque the rod bolts? Kidding.
And what kind of torque/power will this make
What will my ET/TRAP be at Firebird International Raceway (FIR) this summer @ 2700 feet above sealevel?
I'd have liked to have used 4032 alloy pistons, but I didn't see an option for them on a stroker build. Maybe Supertech? If this motor fails, I will go with these:
http://www.intengineering.com/mahle-2-7t-30v-piston-set-81-5mm-bore-86-4mm-stroke-9-1-crMy spare block is already bored/honed for them. Another thought would be to build a high compression E85 motor, but then we are back to the higher thermal expansion alloy.
ANYONE HAVE A CONNECTION ON 4032 Alloy Custom Pistons for stroker or high comp set-ups?
Everything about this build is for a daily driver with a mean torque curve. Warming up the car for 15 minutes gets to be a chore every morning.
Need any parts for your build? What's left of the the gray car is for sale!!