Stephen/APR

APR is happy to announce our Oktoberfest Holiday Sale. This sale continues through Halloween Day, October 31st. Don't miss these savings!

Software - Buy a new ECU Upgrade, get a Second EMCS Program for free, OR Buy a new ECU Upgrade and a Second EMCS Program, and get all available EMCS options for free (* - excluding APR Anti-Theft).

5%
APR Stage III and Stage III+ Turbo Kits are on sale.

10%
ALL APR Exhaust Systems are on sale.
ALL APR Accessories are on sale. This includes such items as the APR Boost Gauge Pods,
APR Shift *****, Lidatek LaserECHO, APR Tuned Badges, and Carbonio Engine Covers.
ALL APR Intercoolers are on sale.

15%
APR Bipipes are on sale.

20%
APR Snub Mounts are on sale.
APR Motorsport Compressor Inlet Hoses are on sale.
APR Motorsport Throttle Body Hoses are on sale.

Please give APR a call if you have any questions about the Oktoberfest Sale.<ul><li><a href="http://www.goapr.com/Audi/products/oktoberfest.html">http://www.goapr.com/Audi/products/oktoberfest.html</a</li></ul>

bhvrdr

Hello there. Can you tell me how much boost the APR chip makes for the B7 A4? Thank you in advance

Stephen/APR

The APR software runs about 19 PSI tapering down to 7-8 PSI at redline. Stock runs 15 PSI tapering down to 5-6 PSI at redline. These are aprox numbers....

Stephen/APR

bhvrdr

I was collecting some info on the new cars and am wondering if the new electronic diverter valve may be a limiting factor in going with big boost for these cars. I'm wondering if you all have found this to be the case and if that's so, do you think there will be a solution for folks who want to try running 22 or more psi for racing applications? Do you think it will be a software thing or a hardware thing (such as having to get a new BPV developed?) Thanka again. cheers! Mike

German Driver

Is this EBPV similar to the N75 setup?

bhvrdr

We also have an N75, just different in design. The EBPV looks to be a menace.

German Driver

Yea, I knew they had both just wasnt sure if the concept/idea was similar

cdmilton

Any idea why the boost on both your APR and Stock software tapers so much?

Ray Khan

turbo is relatively small for the engine is the simplest way to look at it

Stephen/APR

as a safeguard. Its a function of turbo size, flow and rpm. As the rpm increases the amount of flow required to meet a desired boost pressure increases. If the same boost that was requested at 3000 rpm was also requested at 6500 rpm you would be spinning the turbo at an excessive rpm. You would also be be creating heat not power. Its interesting that the factory chose this turbo size since they increased displacement over the 1.8T.

Stephen/APR