went to the track...long read

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burntricer
Posts: 1126
Joined: Tue Jan 02, 2007 6:51 am
Car: 90 S13 SR20DET Redtop

Post

heres the story. i did my first run.

15.4, wtf, so i figured i just sucked, did a bunch of runs with sacco and against other things, consistent around 15.4, went to turn up my boost (should be safe to 13psi, im only running 7) so i put my boost controller in and went nd ****ed around in the parking lot. thought i had it set, did a run and it spiked to 15psi, i backed out of it and didnt boost the rest of the run

so after that i put the stock wastegate back on, but i wasnt able to break down into the 15s again, 16.1, 16.2 was normal.

then lindsay took it for a ride, to see if maybe something else was up that he could pick out (i.e my driving) and he said that it couldnt hit the redline, and would break up anything over 5500 rpm. i tried it,and sure enough it would. and i noticed that every time i hit the break, my deck would shut off, and there was a buzzing coming from by my feet, and every time i would crank the car it was like it didnt want to turn over.

finally it just wouldnt start, threw a charger on it, and it would fire, and run fine, for about 5 mins, then all my gauges would go dim, deck would trip out and then the car would have no power. So i left the charger on it over night and in the morning it ran for probably 45 mins without the charger on it and then did the same thing. my room mates brother had an optima red top, i threw that in there. and that is what got me home. (the battery light came on in schriber, i made it to tbay, and can still go start the car, oh and sometimes when i take my key OUT, all my accessories stay on, and i have a .5v draw if i put a multimeter lead to the positive cable(un attached to the battery) and then to the ground...ive got some huntin to do)

The other problem. i feel like the car is naturally aspirated. i boost, the gauge reads boost, but i dont feel boost. it feels like the car is being held back by something strong, like its dragging, like its holding back by a big *** cable. and it did it the whole way home, i couldnt even hit 140 if i tried. im leaning toward the stock recirculation valve leaking back into the mass air flow sensor, and letting all the boost just keep going back and forth into the turbo. oh well, my head hurts, im going to bed for a bit. and then tomorrow im gunna tackle this pos...

oh ya SR with gt2560r, 7psi, otherwise stock


DrifterProdigy85
Posts: 1817
Joined: Sat Jul 02, 2005 7:42 pm
Car: 1989 Nissan 240sx (Zenki Onevia)

Post

Bad Grounds or Alternator would be my guess.

DrifterProdigy85
Posts: 1817
Joined: Sat Jul 02, 2005 7:42 pm
Car: 1989 Nissan 240sx (Zenki Onevia)

Post

Boost leak test it and check timing as well for the doggy feeling.

burntricer
Posts: 1126
Joined: Tue Jan 02, 2007 6:51 am
Car: 90 S13 SR20DET Redtop

Post

timing was out, and im thinkn alternator for the other problem



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