23 replies to this topic

[turbor850]

Highest ever.

22ish - 1st
28ish - 2nd
28ish - 3rd

but as you upgrade wastegate actuator and hot side to be bigger, you can hold boost at higher rpm

[TRACStar]

AverageVolvo, on 04 November 2009 - 09:31 PM, said:

In an automatic it is electronically limited , that and traction loss(open diff, With a M56h and quaife still not enough grip(225/45/17 On Zr Performance tires, Bf Goods & Bridgestone.

An auto is not limited when using an MBC and my trans in a straight line is LSD its them damn turns that kill it

[--Aaron--]

I have all the normal stage 0 stuff, plus silicone all across the board, IPD HD TCV & HD CBV, IPD wires, MSD coil, straight 16T, 3 in. dp > 3 in. high flow cat > IPD/TME catback w/ a straight piped resonator section, ST tune for 12 psi which is a safer mock of another member here who had very similar mods and was retuned a bunch of times to get things right......this is on an LPT.

I really don't look at my gauge in 1st gear.....she just makes lots of noise and darts off (If I make her.)

2nd, 3rd and 4th I easily jump to 12 psi and hold steady. I've drug 3rd out pretty damn far before but cannot say I redlined 4th.

I had my tune setup to pull timing a bit @ ~3500 RPM....safety until I dyno and get remapped for 15 psi. Then at about 3800 RPM she fawkin' moves out.

[Jardon]

None of the TD04 turbos will hold more than 1.0 to 1.1 bar at the 7000rpm. Tiny hotside, etc. You could weld the wastegate shut and get nothing more. They are exceptional from 2500 to 5500 rpm but are not built for screaming boost at 7000 rpm. Trying too hard will just give you whopping back pressure and rocketing EGT's. Stop worrying about it!