rvrftw
Member
Ok, so got my car dyno'd yesterday and had some rather weird results.
First of all, as you can see, the car is running stupidly rich and has a weird drop in power (which is at around the 3500 - 4000 rpm mark)
Also the turbo doesn't hit the 18 psi till the end of the run (7k rpm)
now on the road sometimes it will hit the 18psi at around 5k rpm.
I found a u pipe on the cold side of the intercooler that had a short pipe running off it with a rubber stopper on the end that was completely cracked(not sure what this T pipe was for?). Once I replaced that rubber stopper, I found that the dip in power seemed to disappear a bit (haven't redyno'd since). But also found that boost hit 25psi once today, and regularly hit 20psi :blink:
Now my questions are:
1. Is there any way to tell who did the chip? I'm assuming it is chipped as it hits 25psi without a boost cut (and as far as I was aware, there is a 15psi boost cut on standard evo 2 ecu's)
2. Where is the stock boost solenoid located and what does it look like? as on later inspection I noticed that the hose from the wastegate actuator goes strait into a nipple on the post intercooler pipe (i.e. hard pipe that runs from intercooler up to throttlebody). From what i know this means that the wastegate is opening as soon as boost starts (is that right?) and would explain my slow boost response?
3. Since there is no boost controller, how would the turbo be getting up to 25psi & how can I reduce this? (I think I can remember someone years ago mentioning adding washers to a turbo to increase boost)
4. What is the max psi that a standard motor can handle (i'm assuming it is standard and not forged, is there any way to tell???)
5. I also found a turbosmart eboost solenoid in the engine bay that wasn't hooked up to anything, is there anyway to use this instead of the stock mitsu solenoid (if I don't have a stock one)?
First of all, as you can see, the car is running stupidly rich and has a weird drop in power (which is at around the 3500 - 4000 rpm mark)
Also the turbo doesn't hit the 18 psi till the end of the run (7k rpm)
now on the road sometimes it will hit the 18psi at around 5k rpm.
I found a u pipe on the cold side of the intercooler that had a short pipe running off it with a rubber stopper on the end that was completely cracked(not sure what this T pipe was for?). Once I replaced that rubber stopper, I found that the dip in power seemed to disappear a bit (haven't redyno'd since). But also found that boost hit 25psi once today, and regularly hit 20psi :blink:
Now my questions are:
1. Is there any way to tell who did the chip? I'm assuming it is chipped as it hits 25psi without a boost cut (and as far as I was aware, there is a 15psi boost cut on standard evo 2 ecu's)
2. Where is the stock boost solenoid located and what does it look like? as on later inspection I noticed that the hose from the wastegate actuator goes strait into a nipple on the post intercooler pipe (i.e. hard pipe that runs from intercooler up to throttlebody). From what i know this means that the wastegate is opening as soon as boost starts (is that right?) and would explain my slow boost response?
3. Since there is no boost controller, how would the turbo be getting up to 25psi & how can I reduce this? (I think I can remember someone years ago mentioning adding washers to a turbo to increase boost)
4. What is the max psi that a standard motor can handle (i'm assuming it is standard and not forged, is there any way to tell???)
5. I also found a turbosmart eboost solenoid in the engine bay that wasn't hooked up to anything, is there anyway to use this instead of the stock mitsu solenoid (if I don't have a stock one)?
