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ACHIEVING YOUR TARGET BOOST PRESSURE
There are various factors involved in achieving your target boost pressure including.
- The size of the spring fitted in your wastegate i.e. the boost pressure achieved by the wastegate spring only.
- The desired level of boost pressure and the difference between this and your wastegate spring pressure.
- The size of your turbocharger and wastegate and the resulting exhaust manifold backpressure in your system.
Turbosmart recommends the ideal setup for achieving your target boost pressure is to use the Ultra-gate38 in conjunction
with a Turbosmart e-Boost controller.
IMPORTANT NOTES ON SETTING THE WASTEGATE SPRING PRESSURE
A stiffer spring should only be used when necessary. The Ultra-gate38 allows for different combinations of spring pressures. All springs
that are adaptable with the Ultra-gate38 are shown in the table below. The tuner can use combinations of up to 3 springs to achieve the
following base boost pressures. To aid in the identification of these springs they are supplied colour coded. If this colour coding is not
clear please use the dimensions in the following table to identity the wastegate spring. Please see the following detailed instructions on
setting your Ultra-gate38’s spring pressure. The springs chosen should be rated to the lowest boost level desired.
Pressure rating 3 PSI Inner 5 PSI Inner 7 PSI Middle 11 PSI Middle 10 PSI Outer 7 PSI Outer
Part number TS-0505-2001 TS-0505-2002 TS-0505-2003 TS-0505-2004 TS-0505-2005 TS-0505-2006
Colour BRN/BLK BRN/GRY BRN/PUR BRN/RED BRN/BLU BRN/PNK
Dimensions
29mm OD,
32mm Length
29mm OD,
36mm Length
36.5 OD, 43mm
Length
36.5 OD,
52mm Length
44mm OD, 68mm
Length
44mm OD,
57mm Length
Desired Boost
Pressure
PSI BAR KPa
3 0.207 20.68 ▲
5 0.345 34.47 ▲
7 0.483 48.26 ▲
10 0.69 68.95 ▲
11 0.76 75.84 ▲
12 0.827 82.74 ▲ ▲
13 0.89 89.6 ▲ ▲
14 0.965 96.53 ▲ ▲
15 1.03 103.4 ▲ ▲
16 1.1 110 ▲ ▲
17 1.172 117.2 ▲ ▲
19 1.31 131 ▲ ▲ ▲
20 1.38 138 ▲ ▲ ▲
21 1.45 145 ▲ ▲
22 1.517 151.7
▲ ▲ ▲
23 1.59 159
▲ ▲ ▲
24 1.655 165.5
▲ ▲ ▲
26 1.793 179.3
▲ ▲ ▲
Changing the springs
WARNING! Fitting a heavier wastegate spring may cause a higher than expected increase in boost pressure.
Turbosmart recommends adjusting your boost controller back to its minimum setting and measuring the new minimum boost pressure
achieved by the new spring, before increasing your boost pressure again.
(20 paginas)
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