Went to the track for first time with the silvy

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
TJ_GT
Posts: 30
Joined: Wed Jan 19, 2005 7:32 pm
Car: 1989 240SX Coupe w/silvia conversion and SR20DET

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first time i have had it at the track and i have to say im rather dissapointed. Granted i'm running EXTREMELY RICH (4.6:1 A/F), one brake caliper was stuck on, my cluch slipped a lil bit and i was running on 205/60/15 potenza's. My best reaction time of the night was .032 so i was happy with that but definatly need to get some SLICKS!!!ok enough excuses my best run of the night was:

60 foot time: 2.179 1/8 Mile ET: 8.867 1/8 Mile MPH: 84.54 1/4 Mile ET: 13.647 1/4 Mile MPH: 101.29

oh here is a vid, its my of my 13.68 run i believe.http://www.putfile.com/media.php?n=100_4458


HolyShiznit
Posts: 732
Joined: Wed Jun 04, 2003 6:57 am
Car: Working on my car

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Wait, aside from all the other "excuses" as you call them: How does your car still run at 4.6:1 A/F? Your plugs should be instant fouled and you should be spitting fuel out the tail pipe....

TJ_GT
Posts: 30
Joined: Wed Jan 19, 2005 7:32 pm
Car: 1989 240SX Coupe w/silvia conversion and SR20DET

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your the second person to say that, it does mist fuel out the tailpipe though i know that much, i put it on an exhaust gas analyser and it said 4.6:1 A/F when i was at 16psi. so weather that is acurate or not i dont know for sure but i'm running pig rich and i do foul out plugs like a mofo.

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tm_kickz
Posts: 588
Joined: Sun Nov 16, 2003 5:39 pm

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That is a bit bad. I figured you would do alot better with 306rwhp...

TJ_GT
Posts: 30
Joined: Wed Jan 19, 2005 7:32 pm
Car: 1989 240SX Coupe w/silvia conversion and SR20DET

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yea but 306 was when it was tuned, since that IATS got messed up i'm prolly running alot less hp, being i'm running so rich

john 89
Posts: 18
Joined: Wed Mar 30, 2005 6:16 pm
Car: SR'd 89 coupe

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holy ****------- yeah get that fuel problem fixed

f150intally
Posts: 420
Joined: Fri Feb 28, 2003 3:57 pm
Contact:

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if it is truly that rich, you shouldn't even be driving the car. Wideband o2 sensors can't even read below 9.0:1. Anything below about 9.5:1 and your oil will be flooded with fuel and the fuel will be washing the oil off the cylinder walls causing your rings to scar them up.

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jilo860
Posts: 24
Joined: Sun Jun 05, 2005 8:06 am
Car: 95 s14 gt3071 - crashed
s13 stock - scrapped
s13 vert built sr sla's gt3071 - still building
86 hardbody rebuilt z24 ka24e pistons weber 32/36 - knocks like a bastard

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you need to stop runnin that car as soon as possible. squirtin that much gas is gonna kill alot of bearings in your botom end. all that gas is washing down your cylinder walls and takin the oil off of them and destroying the oil in your engine. also since there is less or none on the cylinder walls as you are runnin it down the track there is gonna be a whole crap load more friction there. lockily an sr is a square motor so your piston dosent push on the wall that hard bit its definatley still there. and HolyShiznit is definatley right that thing shouldnt even run, so now to start diagnosing you gotta figure - if you drove it to the track and it actually starts, its something thats happening at higher boost. im newer to the sr20 so i dont know if its a completley boost dependant fuel pressure reg. but that might be a good place to start. definatley dont drive that car like that if you wanna keep it running.

TJ_GT
Posts: 30
Joined: Wed Jan 19, 2005 7:32 pm
Car: 1989 240SX Coupe w/silvia conversion and SR20DET

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thanks alot for the input guys, i do really need to get that fixed, and yea i know exactly what your talking about with the gas in the oil, i change it weekly and use lucas oil treatment. right now i dont know what to do cus its the only vehicle i have at the moment. I'm getting the sensor and getting it tuned at the end of the month so maybe i'll try to talk my buddy into letting me use his other car till then. Oh and good point about the bearings, i didnt even think of that, i was thinking of the piston wall thing and my upper valvetrain, but bearings didnt even occur to me till now. anyways i'm definaly gonna try to keep driving it down to a minimum.


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