Car is a 98 T/A. A4 with 204k original miles on the engine and transmission. Mods are.

Fast toys ram air
Fast toys 98mm lid
85mm MAF
Warr Performance 102 TB
Fast 102 intake
1 3/4 TSP longtubes
Speed Eng. True duals
Yank 3400 converter
3.42 rear gears

Car made 347/368. Wished I could have installed the Underdrive pulley before getting it dynoed.

 

Depends on the dyno, but I'll say around 330-340 rwhp

 

Hard to say through unlocked converters. Anywhere from 300-350 whp. I think it would trap anywhere from 109-112 mph

 

335hp/352tq to the wheels would be my guess.

 

Any other boltons I could add? Was thinking about an EWP. Any ideas? My goal is to hit 11s before the H/C swap. Planning to take about 125 lbs out of it too. Current weight is 3360 without me in it.

 

VERY good torque #! THAT'S what's gonna haul the goods for ya!

 

The pulley should free up 5 - 8 rwhp. Should be over 350 rwhp now.

 

Had to get it retuned Thursday because Amazon sent me a POS remanufactured MAF. It put down the same numbers
as before. Only difference was the temperature. It did 347 RWHP in 90 degree weather. Last time it did 347 in 50 degree weather. Only changes made was an UD pulley and a brand new MAF.

 

You should not be relying on a maf to gain power unless it's a bigger diameter and you tune for it. I've seen back to back tests on OEM mafs skew the AFR by 1-1.5 points.

 

It is a larger diameter. It's an 85mm. The first one I ordered off of EBay was listed as new but turned out to be refurbished. My tuner said he sees this all the time. The refurbished ones can cause them to lean out around 5k rpm.

 

Ah,makes sense.