SR timing issue? Please consult!

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
boardoxmage
Posts: 78
Joined: Sat Apr 14, 2007 8:24 pm
Car: '91 240sx HB

Post

Well this morning I let my car warm up for about 10 minutes and it drove fine.

I think I also solved my higher RPM bucking and hesitating. (~3000 RPM). I have a Walbro fuel pump. I had a 10 fuse in my fuel pump fuse slot and my friend said the Walbro needed a 15 fuse (his 10 fuse kept shorting when he started his car and switched to a 15 and it never shorted again). So I put a 15 fuse in and now my car runs very well :]

I'm still having trouble with cold starts though

Possibly my battery...


idahotuner
Posts: 10583
Joined: Thu Jun 28, 2007 7:11 am
Car: 2012 Dodge Ram 2500 6.7 Cummins
93 Nissan Sileighty
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could be. i am gladd it is workign better

duffman1278
Posts: 6816
Joined: Sun Apr 01, 2007 3:09 pm
Car: 89 240sx Hatch, the wildcats!

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Good work man, but wait, 15 amp fuse?? I have a 10amp fuse in it right now, never heard of any issues with that yet, until now, hmm....As for the idle screw, I might need to loosen it as well, mine seems like its choked, and its all the way down

boardoxmage
Posts: 78
Joined: Sat Apr 14, 2007 8:24 pm
Car: '91 240sx HB

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Yeah, I never heard of it until he told me, too. But it drives better with the 15 amp fuse.

Well, this morning it was cold as balls outside, and with the idle screw backed around half-way and my car started up fine woohoo!

So slowly, I'm getting this car driving fine.

I was so ready to sell my 240 and buy a 350z...

boardoxmage
Posts: 78
Joined: Sat Apr 14, 2007 8:24 pm
Car: '91 240sx HB

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I know I'm double posting but I'm having a realy big problem with my car.

It runs great when it's warmed up so I let my car idle for about 5 minutes before I go drive. But after I go into boost 5-7 psi my gar dies when i push in the clutch

sometimes i smell gas at WOT so i know I'm running really rich.

It feels like theres too much gas going into the engine but not enough air.

when i start stopping my idle drops to 500 rpm but when i'm at a complete stop it bumps back up to 1000rpm.

idahotuner
Posts: 10583
Joined: Thu Jun 28, 2007 7:11 am
Car: 2012 Dodge Ram 2500 6.7 Cummins
93 Nissan Sileighty
93 Honda Civic hatch
2011 Polaris Ranger
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weird man.

check your fuel lines and stuff.have you checked for vacuum leaks through your entire systm.

boardoxmage
Posts: 78
Joined: Sat Apr 14, 2007 8:24 pm
Car: '91 240sx HB

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I'm very new to nissans and not to mention turbo'd cars period.

I'm taking my car to a buddy's shop who knows a bunch about sr20's and have him check my fuel lines.

I'm about 90% sure i have no vac leaks though.

idahotuner
Posts: 10583
Joined: Thu Jun 28, 2007 7:11 am
Car: 2012 Dodge Ram 2500 6.7 Cummins
93 Nissan Sileighty
93 Honda Civic hatch
2011 Polaris Ranger
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90% isnt good enough lol

i am new to the nissan turbo cars as well. but i have learned alt jst from pulling them apart and putting them back together, i know afer i finish my build if i was to do it again. i would be able to d oit a hella lot faster

codyace
Posts: 1195
Joined: Tue Apr 26, 2005 7:22 am
Car: S14 w/redtop
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boardoxmage wrote:I know I'm double posting but I'm having a realy big problem with my car.

It runs great when it's warmed up so I let my car idle for about 5 minutes before I go drive. But after I go into boost 5-7 psi my gar dies when i push in the clutch

sometimes i smell gas at WOT so i know I'm running really rich.

It feels like theres too much gas going into the engine but not enough air.

when i start stopping my idle drops to 500 rpm but when i'm at a complete stop it bumps back up to 1000rpm.
Do you have your BOV recirculated like it should be, or venting wide open, ricer style?

Have you officially verified timing, by locking the car into timing mode and doing it correctly, per FSM?


boardoxmage
Posts: 78
Joined: Sat Apr 14, 2007 8:24 pm
Car: '91 240sx HB

Post

my BOV is pretty much as rice as you can get if defined by you.

to be honest i don't know how to mess with timing. I'm going to have a buddy of mine take a look at it this week.

i'll update when i get more info.

thanks everyone.

idahotuner
Posts: 10583
Joined: Thu Jun 28, 2007 7:11 am
Car: 2012 Dodge Ram 2500 6.7 Cummins
93 Nissan Sileighty
93 Honda Civic hatch
2011 Polaris Ranger
Contact:

Post

i dont liek rice but as far as a BOv is concerened then i am ricy. casue i like a loud BOV but that is just me lol


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