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Discussion Starter · #1 ·
When I was on the Copper Plugs , I changed them out every 2 weeks just to see what was going on in th ecylinder and the copper plugs tend to heat up a little more than platinums , wearing down the electrode. I say buy a box of BKR6E11's (Winter) and BKR7E11's (Summer) and change them out every 2-3 weeks. That may be the problem.

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Louis Anaya 1992 Sentra SE-R
13.6 @ 111 mph(Street Tires),12.7 @ 112 mph(Slicks 2.00 60' time), Bluebird SR20DET w/ GTiR Pistons,T3/T04E,Deltagate Wastegate (9 PSI) FMAX Manifold, RevHard FMIC, JWT S3 Cams, JWT Ported & Polished Head, 1996 200SX SE-R Welded & Cyro Treated Tranny, ACT Xtreme P/PL & 6 Puck Disc, Cobra MAF, JWT ECU w/ 4 Bar Fuel Program, MSD 50lb/hr Injectors, JWT Fuel Rail, 300ZXTT Fuel Pump, AeroMotive Adjustable Fuel Pressure Regulator, Greddy Type "R" BOV, Greddy Profec B, Greddy Boost & EGT Guages, UR 4 Pulley Kit, Powerslot Rotors, Axxis MM Brake Pads, ES Motor Mounts, Topspeed Short Shifter, Momo Cobra Shift Knob, KYB AGX Struts, GC Coilovers (350F/600R)& 17x7 White Tenzo Shu-4's w/ Kuhmo 205/40/ZR17 Tires
 

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Discussion Starter · #2 ·
When I was on the Copper Plugs , I changed them out every 2 weeks just to see what was going on in the cylinder and the copper plugs tend to heat up a little more than platinums , wearing down the electrode. I say buy a box of BKR6E11's (Winter) and BKR7E11's (Summer) and change them out every 2-3 weeks. That may be the problem.

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Louis Anaya 1992 Sentra SE-R
13.6 @ 111 mph(Street Tires),12.7 @ 112 mph(Slicks 2.00 60' time), Bluebird SR20DET w/ GTiR Pistons,T3/T04E,Deltagate Wastegate (9 PSI) FMAX Manifold, RevHard FMIC, JWT S3 Cams, JWT Ported & Polished Head, 1996 200SX SE-R Welded & Cyro Treated Tranny, ACT Xtreme P/PL & 6 Puck Disc, Cobra MAF, JWT ECU w/ 4 Bar Fuel Program, MSD 50lb/hr Injectors, JWT Fuel Rail, 300ZXTT Fuel Pump, AeroMotive Adjustable Fuel Pressure Regulator, Greddy Type "R" BOV, Greddy Profec B, Greddy Boost & EGT Guages, UR 4 Pulley Kit, Powerslot Rotors, Axxis MM Brake Pads, ES Motor Mounts, Topspeed Short Shifter, Momo Cobra Shift Knob, KYB AGX Struts, GC Coilovers (350F/600R)& 17x7 White Tenzo Shu-4's w/ Kuhmo 205/40/ZR17 Tires
 

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Discussion Starter · #3 ·
Oh, I also forgot. Keep them at .028-.030" gap. That shold be sufficient. What plugs are you running right now?

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Louis Anaya 1992 Sentra SE-R
13.6 @ 111 mph(Street Tires),12.7 @ 112 mph(Slicks 2.00 60' time), Bluebird SR20DET w/ GTiR Pistons,T3/T04E,Deltagate Wastegate (9 PSI) FMAX Manifold, RevHard FMIC, JWT S3 Cams, JWT Ported & Polished Head, 1996 200SX SE-R Welded & Cyro Treated Tranny, ACT Xtreme P/PL & 6 Puck Disc, Cobra MAF, JWT ECU w/ 4 Bar Fuel Program, MSD 50lb/hr Injectors, JWT Fuel Rail, 300ZXTT Fuel Pump, AeroMotive Adjustable Fuel Pressure Regulator, Greddy Type "R" BOV, Greddy Profec B, Greddy Boost & EGT Guages, UR 4 Pulley Kit, Powerslot Rotors, Axxis MM Brake Pads, ES Motor Mounts, Topspeed Short Shifter, Momo Cobra Shift Knob, KYB AGX Struts, GC Coilovers (350F/600R)& 17x7 White Tenzo Shu-4's w/ Kuhmo 205/40/ZR17 Tires
 

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<font face="Verdana, Arial" size="2">I am running the non-plats one heat range colder than stock (can't remember the number at the moment) with the extended tip. </font>
Dude... like, read and stuff
 

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Discussion Starter · #5 ·
Does that mean you have BKR6E11's or BKR7E11's? Maybe you should clarify what you are writing. I am trying to help YOU! If you "cant remember the number at the moment", then I suggest you find out!

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Louis Anaya 1992 Sentra SE-R
13.6 @ 111 mph(Street Tires),12.7 @ 112 mph(Slicks 2.00 60' time), Bluebird SR20DET w/ GTiR Pistons,T3/T04E,Deltagate Wastegate (9 PSI) FMAX Manifold, RevHard FMIC, JWT S3 Cams, JWT Ported & Polished Head, 1996 200SX SE-R Welded & Cyro Treated Tranny, ACT Xtreme P/PL & 6 Puck Disc, Cobra MAF, JWT ECU w/ 4 Bar Fuel Program, MSD 50lb/hr Injectors, JWT Fuel Rail, 300ZXTT Fuel Pump, AeroMotive Adjustable Fuel Pressure Regulator, Greddy Type "R" BOV, Greddy Profec B, Greddy Boost & EGT Guages, UR 4 Pulley Kit, Powerslot Rotors, Axxis MM Brake Pads, ES Motor Mounts, Topspeed Short Shifter, Momo Cobra Shift Knob, KYB AGX Struts, GC Coilovers (350F/600R)& 17x7 White Tenzo Shu-4's w/ Kuhmo 205/40/ZR17 Tires

[This message has been edited by APEXSER (edited 02-27-2001).]
 

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See if ya'll agree with my proposed solution to this:

When the coolant guage isn't all the way up to where it's supposed to be, the car sputters a little bit around 0-1psi of boost. It's noticeable, but not violent or anything. I am running the non-plats one heat range colder than stock (can't remember the number at the moment) with the extended tip. I have 54k on the car with the stock distributor cap and rotor.

My proposed solution is to get a set of the non-extended tip non-plats in the same heat range, and also replace my distributor cap and rotor (OEM Nissan) since it's probably about time to do that.

That sound good?

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Ben98SentraSE
98 Sentra SE TURBO
 

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Discussion Starter · #7 ·
You can change the cap and rotor, but it might just be that the BKR6E11's (or BKR7E11's) need to warm up a little more since they are a colder plug than stock. What er the plugs gapped at? How old are they?

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Louis Anaya 1992 Sentra SE-R
13.6 @ 111 mph(Street Tires),12.7 @ 112 mph(Slicks 2.00 60' time), Bluebird SR20DET w/ GTiR Pistons,T3/T04E,Deltagate Wastegate (9 PSI) FMAX Manifold, RevHard FMIC, JWT S3 Cams, JWT Ported & Polished Head, 1996 200SX SE-R Welded & Cyro Treated Tranny, ACT Xtreme P/PL & 6 Puck Disc, Cobra MAF, JWT ECU w/ 4 Bar Fuel Program, MSD 50lb/hr Injectors, JWT Fuel Rail, 300ZXTT Fuel Pump, AeroMotive Adjustable Fuel Pressure Regulator, Greddy Type "R" BOV, Greddy Profec B, Greddy Boost & EGT Guages, UR 4 Pulley Kit, Powerslot Rotors, Axxis MM Brake Pads, ES Motor Mounts, Topspeed Short Shifter, Momo Cobra Shift Knob, KYB AGX Struts, GC Coilovers (350F/600R)& 17x7 White Tenzo Shu-4's w/ Kuhmo 205/40/ZR17 Tires
 

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I think they are 0.028-0.030 and they are about 3 months old.
 

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Well I thought the stock plug heat range was pretty well known, just that I'm a monkey and could never remember. Let me look them up on SE-R.net or something...

I think PFR7B-11 is stock, so I must be running BKR6E-11
 

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El Chingon
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Actually bud, the 5's are stock and the higher number (6, 7) are colder plugs. That's why Louis runs 6's in the winter and 7's in the summer (warmer in a colder temp and colder in a warmer temp). Seeing that you're in the snow, I'm guessing you're probably running the 6's.

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David
'98 Super Black SE w/stuff

 

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See, told ya'll I was a sparkplug heat range number monkey
 

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<font face="Verdana, Arial" size="2">Originally posted by Ben98SentraSE:
See if ya'll agree with my proposed solution to this:

When the coolant guage isn't all the way up to where it's supposed to be, the car sputters a little bit around 0-1psi of boost. It's noticeable, but not violent or anything. I am running the non-plats one heat range colder than stock (can't remember the number at the moment) with the extended tip. I have 54k on the car with the stock distributor cap and rotor.

My proposed solution is to get a set of the non-extended tip non-plats in the same heat range, and also replace my distributor cap and rotor (OEM Nissan) since it's probably about time to do that.

That sound good?

</font>
Seems I have the same problem with no solution as of yet. When the temp gauge is coming up in transition the car runs like crap.

I think it may be something with the way JWT sets up the program and only those of us int he colder climates experience it. I have no basis for this thought, but it seems to be the only thing left. I have been through everything on the car. I mean everything...two or three times.

I hope to get Mikes bag of trick on it at the convention to figure out what the heck is going on.
 

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Strangely enough it did NONE of this tonight. I rented a full sized-truck to help me move some furniture today and picked up my car at like 7:30PM tonight. I never felt the sputtering all the way home. Hmmmm.. it's 25 degrees right now, the coldest it's been in several days... humidity is 69%, barometer 30.11 and falling... I dunno


I need to do that above stuff anyways, so we'll see how it goes. I won't get my hopes up though.

It doesn't run like crap during that time if I give it some decent throttle though, only if I baby it. Does that also match your experience, Jay?
 

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nissan part # for the non platinum colder plugs are the 22401-20j06 and the colder plugs are a 22401-20j07. I use the 20j06 on mine for the nos, and change em out alot. under $2 a piece too.

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98 se-r w/ p/r cai,jwt s3 cams, stillen header, courtesy exhaust, ur pullies, JUN flywheel, ACT clutch, NOS nitrous kit, eibach springs, kyb struts, st sways, cusco camber plates, f/r strut braces,stillen lower control arm brace, lotsa bushings, and a bunch of other crap
 

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<font face="Verdana, Arial" size="2">Originally posted by Ben98SentraSE:
It doesn't run like crap during that time if I give it some decent throttle though, only if I baby it. Does that also match your experience, Jay?</font>
Yup, part throttle drivability troubles in warm up transition. It feels like having an accelerator pump bad on a carburator. For you young guys that means when you step into the throttle the car kinda falls on it's face and stumbles bit.
 

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I remember Bowlcut said his car did that with the timing at 15 degrees. Mine is at ~14. Maybe I should up it 1-2 degrees and test it?

Will have to wait and do it again. Last 2 hours it hasn't done it for some strange reason
 

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pwnd
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Yea my timing was way low. But I just kinda assumed a few things. I read on 240sx.org i think that their ecu takes timing out when you go to full throtle then feeds it back in. So I doubt that is totaly your problem. Since you are not flooring it just going to part throtle. Timing could be a bit of it but I doubt that is the full problem.
 

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I had the same problem when I put the DET in after hunting throught it all, it turned out to be the plugs and the TPS.... the voltage change was erratic as I tested it from closed to WOT.. together they fixed the problem... I think I have an extra TPS if you want to try it?

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93 NX2K
some stuff and a DET
"project street mod?"
1988 BMW M3 w/ a few toys
 

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Ben did you disconnect that plug by your gas tank? If you did you need to reset your TPS. Mine was way out of wack after I unpluged my it..Whatever the hell it was.

Mike
 

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I did that. It was actually pretty close. I did the "boost sensor" up on the firewall to. Solved the weird idle ****.
 
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