DDP

That's not nice.

Techno Duck

Spill the beans Mike, considering the similarities between our cars im very interested . I am going to hope atleast 325whp @ 17psi.

awilson40

No matter what it was, it wont be enough

333pg333

What size is this turbo compared to a GT series equivalent?

Rogue_Ant

About the same size as the GT35R... A slightly bit smaller though.

MM951

Once my coworkers leave I'll hop on my laptop and upload the chart.

I am quite dissapointed in my results but have my suspicions as to what is killing my output. At least now I know my butt dyno was not lying when I felt my car has been slower....

fast951

I'll take a guess, of course if it's as hot when you dynoed as it is today, subtract 200rwhp across the board..
10 psi - 240-260
17 psi - 310-330
19 psi - 320-340

333pg333

Oh, ok. For some reason I thought it was smaller than that. So sort of halfway between a 3076 and a 35r. Actually a good size for some applications I think.

MM951

Fast951: Your numbers are about what I was hoping for, although I was expecting less due to misc exhaust leaks possible dead knock sensor (I can not find a new one that ohms out! Etc

Once I post the graphs I'd love to hear any ideas or thoughts.

Van

Mike, in addition to my thinking your O2 sensor is suspect, I was also thinking you might/could have a faulty engine temp sensor.

gcb951

Well?

MM951

I have the file in PDF format attached. If it doesn't work I'll try to take a screenshot and make it a JPEG so I can attach it easier.


I'm suspecting my knock sensor, temp sensor, TPS, intake/exhaust leaks, or false hopes for the low power. What interests me is the powerband seems much different from Vans car. My car makes LESS torque (and at a higher rpm) and makes peak HP at a lower rpm. Also, it really doesn't build power past 5K rpms, when I distinctly remember how before it would just be increasing pull all the way to the rev limiter...

Also, we did a run at 3/4 throttle and IRRC it made the same torque and almost the same HP IRRC. It confirms my butt dyno feelings that car feels just as fast at 75% throttle vs 100%. The car also used to have a distinct "power noticably increasing towards redline" feel that is no longer there. Well, I guess you guys will see for yourself. I do know the car used to be much faster, hell, my little 12 year old sister could tell the difference.

FWIW, all sensors (except the O2 sensor) are between 3,000 and 54,000 miles old (~3 weeks - 2 years)

JohnKoaWood

Not bad, but there is obviously something to sort out.... good luck, and thanks for posting it up, I will be sure once my car is back together to do a full disclosure on build, with the tune package being the only thing I will hold back, as I am working from a blank sheet of music as it were..

Good luck, and I look forward to going shooting next year at the fest!

mudbuddha

Mike - Definitely low for this type of turbo at those psi especially for a dynojet. I am thinking freeing up the exhaust, hard pipes, and check for leaks etc. will give you better numbers. Is the compression ok?

Magnoliarichj1

hmmmmmm.