I will be boosting my car and will have a 7psi Tech2 pulley and aftercooler on a comptech, My car will retain the stock injectors and ECU. I read somewhere that its fine to run 7psi without upgrading injectors or ecu, but I will need to adjust the FPR.

Problem 1. We only have two dyno

 

I'm using one of these for the A/F readings, http://www.zeitronix.com/Products/zt2/zt2.htm it also does your boost, TPS, EGT, revs, it also data logs onto a laptop or now a PDA.

 

You know that looks like a great solution. It cover alot for a very small price. the only thing I don't like it the analog wideband out curve. It looks pretty narrow (0-3v)

 

Thanks Mark, looking great, do you have any dimensions/pics of the diplay?

 

Its small, 125x50mm 20mm depth.

I'll get some photo's tonight when I get home.

 

What does that mean then?

 

The voltage from tha analog signal is from 0-3 volts. Most other UEGO are from 0-5. So they would be better suited for AEM EMS for instance. It is a more linear curve for A/F reading. But that is only the output to another system. They both use the same O2 sensor to get the reading. The UEGO systems are 2-3 times the price.

From a tuning stand point, it covered a lot for a small price. For $279 you get O2 Wideband, RPM, TPS data logging. You can add the optional EGT ($65), Boost ($109) and the display($120-$149).

This is the analog out put curve I am talking about from the Zeitronix. They spec it at 0-5v, but this curve looks 0-3v to me.

 

good observation on the graph.
it wouldn't hurt asking them this question.


Is there any need to have the following gauges for my application ?

Oil Temp
Oil Pressure
EGT

 

with a 7psi pulley stock injectors would be maxed out. you would have to increase a LOT the fuel presure and that is not good for injectors

 

with the 7psi pulley, does it give 7 after the A/C or before ?

will i solve it by just replacin the injectors with 440's