Welcome to the SR20 Community Forum - The Dash.
Register
SR20 forum logo

Thread: SR20VE+T low on power, please help!

+ Reply To Thread
Posts: 11-20 of 94
2014-02-14 15:47:18
#11
Originally Posted by gomba
have you checked the compression?

You should post your logs of your TPS voltage/MAF voltage/timing/duty cycle and such here on a full throttle run from about 6000 to redline.

-G


No I haven't, I'd hope it's okay though! Car idles perfectly and drives around town flawlessly with plenty of torque.
I honestly don't think my ecu software has the ability to do that, my datalogs are usually just lines-kinda like a dyno power curve. No idea how to get that data in an easily readable format.
2014-02-14 15:52:54
#12
I see a 'datalogging' menu at the top of your software, I'm sure it logs something. Simply open the file it creates with Excel and paste what you see.

Also, you should check compression. Hoping it's fine doesn't make it so.

-G
Last edited by gomba on 2014-02-14 at 16-12-28.
2014-02-14 23:18:03
#13
Originally Posted by gomba
I see a 'datalogging' menu at the top of your software, I'm sure it logs something. Simply open the file it creates with Excel and paste what you see.

Also, you should check compression. Hoping it's fine doesn't make it so.

-G


Yes you're correct, and it logs a number of inputs that I can choose, however they are displayed in a graph with an x and y axis just like a dyno curve. I had a look then and it does say I can copy the graph, so I'll have to see if I can paste it into paint and make it big enough to be legible.
Alright, I've got a mate with a comp tester, I'll hit him up.
2014-02-15 04:26:10
#14
Is the car originally obd-2? With what you have you should be making some more power. Where is the wastegate location and was the divider wall taken out?
If that's the p12 20v motor and not the regular sr20ve, be easy with the timing the ring lands are real thin.
2014-02-15 16:30:26
#15
Originally Posted by gio94sr20ve
Is the car originally obd-2? With what you have you should be making some more power. Where is the wastegate location and was the divider wall taken out?
If that's the p12 20v motor and not the regular sr20ve, be easy with the timing the ring lands are real thin.


I believe all Australian pulsars are obd2, whys that? The car is a 2000 model. The ecu is from a 92 n14 but afaik they're identical to the n15. Wastegate location is on the front of the exhaust mani and I ground out about half of the divider. Basically enough to get sufficient flow to the wastegate.
It is a P12 bottom end alright I won't give it any more timing then. You think I should back it off around 4000 a little?
2014-02-15 19:28:53
#16
N15 is OBD1
2014-02-15 23:08:22
#17
Originally Posted by rowdy-gti
N15 is OBD1


My bad! You are correct
2014-02-16 01:06:52
#18
Next thing to double check is the physical position on the distributor. Check the piston tdc through the spark plug hole. Check the timing marks on the pulley and see if it is at 0degrees mark
2014-02-16 09:16:00
#19
Originally Posted by gio94sr20ve
Next thing to double check is the physical position on the distributor. Check the piston tdc through the spark plug hole. Check the timing marks on the pulley and see if it is at 0degrees mark


So pull a spark plug, crank the motor, get piston 1 at tdc, then check that crank pulley is at 0? And if it isn't?
2014-02-16 10:52:02
#20
just tyrn the motor over by hand yeah, the outer casings of the pulleys can slip as the rubber degrades throwing out the timing marks.
+ Reply To Thread
  • [Type to search users.]
  • Quick Reply
    Thread Information
    There are currently ? users browsing this thread. (? members & ? guests)
    StubUserName

    Back to top