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Model specific boards => Golf mk4 => Topic started by: Jayz on 20 May 2012, 12:30

Title: k03s AGU down on torque??
Post by: Jayz on 20 May 2012, 12:30

Hi guys, i got my car rr'd and im pushing out 241.4bhp and 275lbft torque @ 3912rpm then drops to 246lbft torque @ 4912 any ideas why that the torque is dropping? I've seen other agu's on here and ukmkivs pushing 225-240bhp but 270-290lbft torque.

Here is a list of the mods of the top of my head

forge 007p with yellow spring
CAI
k03s silienced version
silicone TIP
FMIC
THS PCR Intercooler pancake pipe
Red silcone boost hoses
Custom map
3" downpipe and decat
cat back exhaust system
new thermostat
new coolant temp sensor
new maf
new n75 valve

any info would be appreciated!  :smiley:

Title: Re: k03s AGU down on torque??
Post by: Chris. on 20 May 2012, 13:17

Have you got a actuator with yellow spring?  Personally I think you will be lucky to see 241bhp off a stock one, as they are all very weak.

What psi peak do you see in spike as the turbo is spooling up?

245ish lbft at 4000rpm is about right.  Heres my graph with similar spec to yours, but calibra turbo injectors and 2.75" maf, forge actuator and custom exhaust.

(http://i93.photobucket.com/albums/l42/carsey2006/IMG_0078.jpg)

The initial torque is based a lot on fuelling and peak boost.

Title: Re: k03s AGU down on torque??
Post by: Jayz on 20 May 2012, 14:05

I've got a stock actuator and i think my peak is 22 psi

Title: Re: k03s AGU down on torque??
Post by: Chris. on 20 May 2012, 14:06

Uprated actuator will help hold both power and torque a lot better.  This will need mapping in ideally.

Title: Re: k03s AGU down on torque??
Post by: shaft69 on 20 May 2012, 15:29

Really need get mine to r-tech.  :cry:

Title: Re: k03s AGU down on torque??
Post by: Wazzzer on 20 May 2012, 16:35

where is the graph mate? Nick gave me some interesting info last time I had mine on the rollers, low torque figures can be down to where the roller operators start recording the power run...