| Took some time this holiday weekend to make progress on getting the dynojet electronic components built so we can begin datalogging temperatures and pressures. With these additional inputs we will be able to monitor temperatures, pressures, and wideband A/F along with the horsepower and torque per RPM. We have performed flowtesting on just about all of the aftermarket intercoolers available. We also just got our hands on a set of GODSPEED intercoolers that were sent to us for modification to add 2.5" IO pipes to them. We will get flowtest data on them with the standard IO as well as with the 2.5" IO. We also have a set of Z1 SMICs here for the same purpose but we will also be performing thermodynamic efficiency testing on both the Z1 units as well as the GODSPEED units. Of course, we will also be doing the same with the original Bell-cored MASSIVES as well as the new V2 MASSIVES with the redesigned core. We purchased the 4-channel analog module for the dynojet WinPEP stack a while back. Saturday I built the signal conditioner board for the K-type thermocouples. I went with the Linear Technologies cold-junction compensator and matching amplifier IC. This CJC IC has a built-in temperature sensor that adjusts the (-) offset of the probe based on ambient temps to produce consistent results. I also used the matching Linear Technologies signal amplifier with a gain of 1000 to bump the signal range into the 1-4V output range. The circuits were constructed on simple breadboard. I also used ball-type sensor leads which are going to produce the fastest response to temperature as this sensor is built literally by fusing the chromel and alumel wires together at the tip. These two probes will be inserted into a 1/8" stainless tube and epoxied into place which will then be installed into the intercooler inlet and outlet hardpipes via a 1/8" NPT to 1/8" tube compression fitting. I also assembled another board with dual Honeywell self-amplified pressure sensors which will also be tied to the analog module. Analog Module (top of stack)
 Thermocouple signal conditioner board and pressure sensor board:
 The dynojet WinPEP software is just awesome. Once the module is installed, you can configure the analog ports and provide either a parametric table of values to convert voltages to some particular unit of measurement or you can configure it using two datapoints to produce a linear conversion of voltage to unit. Then you can also design the graphical interface from a nice selection of bar graphs, analog gauges, digital gauges, etc etc and tailor them to your liking. 
We also purchased a 61" Samsung HD television to mount to the front lift post. I built a perch for it using some schedule 40 steel tube, 1/4" steel plate, and a timing belt idler bearing for the swivel. With this mount you can clearly see the dynojet information and when we have dyno shootout days, we can rotate it around so people outside the bay can see the results. :) 
This week we will be performing several tests which include the before/after of the 2.5” Turbo Inlet Pipe set on a car already producing 680RWHP and also thermal efficiency testing of several different sets of intercoolers which will be performed on my personal Z.
Enthusiasts soon understand each other. --W. Irving.
Are you an enthusiast? If you are out to describe the truth, leave elegance to the
tailor.
Albert Einstein
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AshSPEC >> Intercooler Thermal Efficiency Testing >>>>> - 
13:00:37 05/30/11
