I need tires!

[CorruptCulture]

I need to borrow the smallest 5 x 4.5 tires anyone has access to. I still can't pass smog but I've made progress. After Sea Foaming the engine, running a tank of Guaranteed to Pass, getting the new cat (4-5 weeks old) really hot, replacing the upstream O2 sensor (3-4 months ago), repairing an exhaust leak upstream of the cat and running 30x9.5 tires (instead of 31x10.5), I still failed.

My NOx is down to 750 ish on a 525 limit at 15 mph. It's down from 2000 and 1100.

I'm pretty confident that stock tires (in the 27-28 inch range) will finally get to me pass.

I'm desperate at this point, my registration is up tomorrow. No mechanic wants to look at it because they know how hard 4cyl Jeeps are to pass.

Fourth time's the charm right?

[enkeivette]

PM sent.

Doesn't your Dad still have the Exploder? Those are 5x4.5

You should put it in 4wd, disconnect the linkage from the transfer case and tell them it is an AWD Jeep.

Young's Power Wagon was AWD and they didn't have an AWD dyno, so they ran it in neutral next to the dyno. That would help for sure. Haha, wonder if it would work.

[enkeivette]

If you get desperate, maybe you could find two 5x4.5 donuts and run those on the rear. Those are super tiny.

I picked up two F Body donuts at pick your part for my trailer. If you do, make sure to tell them they are donuts or they will charge you for a wheel and a tire separately.

[CorruptCulture]

PM sent.

Doesn't your Dad still have the Exploder? Those are 5x4.5

You should put it in 4wd, disconnect the linkage from the transfer case and tell them it is an AWD Jeep.

Young's Power Wagon was AWD and they didn't have an AWD dyno, so they ran it in neutral next to the dyno. That would help for sure. Haha, wonder if it would work.

Nah, my dad sold the Exploder a few years ago. I didn't know they were the same bolt pattern; I may have access to those.

I don't think the 4WD/AWD option would work. The dyno has to spin and register the speed during the test.

[CorruptCulture]

If you get desperate, maybe you could find two 5x4.5 donuts and run those on the rear. Those are super tiny.

I picked up two F Body donuts at pick your part for my trailer. If you do, make sure to tell them they are donuts or they will charge you for a wheel and a tire separately.

May be a stupid question, but what are donuts?

Also, I just found out, I have a few weeks after all. I paid my registration early so I didn't get a late fee and the Incomplete Registration form I got in the mail gave me an extension. I still need to get this resolved though...

I should buy a Honda Rebel 250 and just start the 4.7L or 5.3L swap. :nuts:

[Vettezuki]

May be a stupid question, but what are donuts?

Also, I just found out, I have a few weeks after all. I paid my registration early so I didn't get a late fee and the Incomplete Registration form I got in the mail gave me an extension. I still need to get this resolved though...

I should buy a Honda Rebel 250 and just start the 4.7L or 5.3L swap. :nuts:

I think you should buy my Bandit 1200S, not kill yourself, and start your swap. :thumbs_up:

[enkeivette]

May be a stupid question, but what are donuts?

Also, I just found out, I have a few weeks after all. I paid my registration early so I didn't get a late fee and the Incomplete Registration form I got in the mail gave me an extension. I still need to get this resolved though...

I should buy a Honda Rebel 250 and just start the 4.7L or 5.3L swap. :nuts:

Uh huh uh huh uh huh.


Donut: (Spare)
http://www.countryteardroptrailers.com/images/images-options/donut.JPG

[CorruptCulture]

Adam, you are a genius...

Seeing that picture made me thing of the trailer we have in our backyard. I got lucky and those tires are the same bolt pattern. They're 27's, hopefully I won't have a problem passing with those.

Is it possible to have tires that are too small?

[enkeivette]

Well, from your smog report it looks like your motor runs cleaner with more rpm. Which makes sense since it's a small motor. So, there is some sort of emission curve going on there.

Of course if you put a 9" wheel barrow tire on your motor is now going to be spinning about 3 times as fast as with a 27" tire and your motor will certaily be sucking in and blowing out more air than most motors at that mph. If your motor was perfect it would make less pollution the slower it was spinning, but its not. So yeah, sure it can be too small, but I'm not sure how small that would be.

[enkeivette]

And I'm not a genius. You are. Not that I like to stroke your already overconfident ego. Haha. You and Sean Plunk are both too smart for your own good.

[enkeivette]

Youve changed the spark plugs, oil and air/ fuel filters right? Don't leave anything on the table.

[Vettezuki]

Youve changed the spark plugs, oil and air/ fuel filters right? Don't leave anything on the table.

:iagree:

[CorruptCulture]

And I'm not a genius. You are. Not that I like to stroke your already overconfident ego. Haha. You and Sean Plunk are both too smart for your own good.

Aww, thanks, you're pretty too!

:gay:

[CorruptCulture]

Youve changed the spark plugs, oil and air/ fuel filters right? Don't leave anything on the table.

Yeah, spark plugs during the summer and oil/air last weekend.

[Vettezuki]

Yeah, spark plugs during the summer and oil/air last weekend.

Filters? Seriuosly. Everything.

[CorruptCulture]

Filters? Seriuosly. Everything.

You're supposed to change the oil filter every time?! :bang:

And here I thought you could just wash them out...

[enkeivette]

Aww, thanks, you're pretty too!

:gay:

I know.

[Vettezuki]

You're supposed to change the oil filter every time?! :bang:

And here I thought you could just wash them out...

Actually, you can just wash them out if you have a Gucci one like I do. Oh snap.

Air filter? Hell, fuel filter?

[CorruptCulture]

Actually, you can just wash them out if you have a Gucci one like I do. Oh snap.

Air filter? Hell, fuel filter?

Air filter last week and the fuel filter is part of the pump which is in the tank... very convenient.

[C5Natie]

I need to borrow the smallest 5 x 4.5 tires anyone has access to. I still can't pass smog but I've made progress. After Sea Foaming the engine, running a tank of Guaranteed to Pass, getting the new cat (4-5 weeks old) really hot, replacing the upstream O2 sensor (3-4 months ago), repairing an exhaust leak upstream of the cat and running 30x9.5 tires (instead of 31x10.5), I still failed.

My NOx is down to 750 ish on a 525 limit at 15 mph. It's down from 2000 and 1100.

I'm pretty confident that stock tires (in the 27-28 inch range) will finally get to me pass.

I'm desperate at this point, my registration is up tomorrow. No mechanic wants to look at it because they know how hard 4cyl Jeeps are to pass.

Fourth time's the charm right?

If theyre doing the smog check like in 4th gear that would be killing you too cuz the engine is chugging at that low speed. Try to do it in 1st. It will drop NOx by a lot.

[enkeivette]

If theyre doing the smog check like in 4th gear that would be killing you too cuz the engine is chugging at that low speed. Try to do it in 1st. It will drop NOx by a lot.

That's a good point, I wonder if there is some standard for that. He might just have a dumb tech.

Same guy every time?

[CorruptCulture]

That's a good point, I wonder if there is some standard for that. He might just have a dumb tech.

Same guy every time?

Two different places. The second and third time were the same person. He used second gear for the 15mph test and third gear for the 25 mph test. He was shifting at the right time.

[C5Natie]

Two different places. The second and third time were the same person. He used second gear for the 15mph test and third gear for the 25 mph test. He was shifting at the right time.

Hmmm, I dont know the gearing on those Jeeps but that sounds like it should be 15 in 1st and 25 in 2nd. Just because its in a higher rpm doesnt mean he has to shift. 3-3500rpm will be a lot lower NOx still than 1500rpm at that speed. You know what the rpms are when he does the test?

[kdracer73]

When the dyno starts a vehicle with a man trans, the computer prompts the tech to do the test in second gear. The machine has speed and RPM limits during the test.

[kdracer73]

Hmmm, I dont know the gearing on those Jeeps but that sounds like it should be 15 in 1st and 25 in 2nd. Just because its in a higher rpm doesnt mean he has to shift. 3-3500rpm will be a lot lower NOx still than 1500rpm at that speed. You know what the rpms are when he does the test?

1752 rpm @ 15mph
2764 rpm @ 25mph
Even on his 25mph test @ 2700rpm the nox was on the high side. 600 parts per million, passing spec is 780 .

[Shaolin Crane]

Why not take it to "another" smog shop?

[CorruptCulture]

Why not take it to "another" smog shop?

Shady guys won't do it if you've already failed a time or two. They don't want it to be suspicious.

[CorruptCulture]

I passed! The combination of 27" tires and wrapping the Cat in tin foil to get it really hot did the trick. Thanks for all the help.

[enkeivette]

I passed! The combination of 27" tires and wrapping the Cat in tin foil to get it really hot did the trick. Thanks for all the help.

Your mom's hot.

[enkeivette]

I remember we were staying over at your house late one night when we were like 16, and your mom came out to give us a ride somewhere, and she was just out of bed with her hair messed up in a night gown... and you said "Nice hair mom" She said "Thank you Steven" sarcastically, "Nice dress mom" ..."Thank you Steven" ..."Nice butt" ..."Steven!" LOL