APR or GIAC

[mmmkam]

EYEspi, did that shop measure the two pulleys? We never got this discussion fully settled. I’m still believing the GIAC pulley is smaller.

J

I am in the same boat looking at going directly to stage II in short order. I asked both APR and AWE directly about the pulley size and both came back with the same answer that its proprietary info and its as small as we can make it without the belt slipping. That answer seemed ridiculous since those that have the pulley can simply take a caliper to it. So if anyone has the answer inquiring minds would like to know.

On one hand its probably irrelevant since even if there is a size difference it would be so small as to be irrelevant. On the other hand the smaller the pulley = more boost potential given equal tunes right.

[sakimano]

I asked both APR and AWE directly about the pulley size and both came back with the same answer that its proprietary info and its as small as we can make it without the belt slipping. That answer seemed ridiculous since those that have the pulley can simply take a caliper to it. So if anyone has the answer inquiring minds would like to know.

so easy…yet nobody has done it lol.

[Jspazz]

Disclaimer: If anyone wants to argue with me, just know that I’m offering my opinion and not claiming it to be fact or truth and I’ll likely not spend the effort to argue back.

-Skid

Love this. + for you hahaha wish I could be that strong

[Jspazz]

Just want to put this in the right thread.

Measuring Pulleys

Stock is 63.25mm at outer ribs. APR is 57.75mm at outer ribs. GIAC…I couldn’t figure out from Pete’s worksheet…:-). Someone should oblige. Measure like this:

http://img.tapatalk.com/d/14/01/29/u9erunet.jpg

http://img.tapatalk.com/d/14/01/29/urupyrap.jpg

[EYEspI]

800, unlimited revisions as long as hardware is the same. Tuned on the dynocom, then Street tested. 150 per revision on the dynocom if a hardware change is made. I just spoke with them in person this morning, the last s4 they tuned made 312 stock, 378 tuned with no pulley and APR exhaust, they offered to have the car available for me to check out and take a ride in

[Jspazz]

I vote you should try them and share the logs…

Mind you, I did that once and lost my motor

[sakimano]

800, unlimited revisions as long as hardware is the same. Tuned on the dynocom, then Street tested. 150 per revision on the dynocom if a hardware change is made. I just spoke with them in person this morning, the last s4 they tuned made 312 stock, 378 tuned with no pulley and APR exhaust, they offered to have the car available for me to check out and take a ride in

Sent from my LG-P930 using Tapatalk

put a pbox in it

performance mods are best measured with actual performance tests. It’s an odd concept on audi forums, I know, but give it a shot