LS1 running strong

What's up guys? Finally got a little time to work on the truck again and got almost all of the bugs worked out. No more codes, the clunkedy clunk noise I finally traced to the cats. I guess soemthing came loose inside so I'm gonna cut them out and weld some straight pipes in. No more tranny whining but I have to play around with the shift points and pressures so it won't shift like a wuss. I blew the power steering hose out and made one hell of a mess racing a Mustang GT but I spanked him good. Oh, and yesterday around 95 mph at WOT the #8 spark plug wire came off and I thought I screwed something up but all is well. I have the A/C hoses to install and I'm gonna get them made this week if things slow down and the temporary Ram Air box is just about complete except for cutting the holes in the bottom of my hood. I also lowered the front end a little more than I wanted and the air dam hits everything in site and the inner fender needs to be rolled so I don't cut through my tires. Other than that the truck runs great! Hope everyone's doing well. I'll be sliding in and out as work permits.

Later

Sound like you almost have everything in place! Congrats!

Congrats on the mustang spanking. Have you sprayed it yet? Sounds like your about ready for the track!

Awesome man, I thought you fell off the face of the earth once you got it running. :laugh:

Nope, just been busy! I plan on spraying it as soon as I finish the air box and tranny adjustments.

Congrats!!! Must feel great!!!

Yes! I know you can't wait to get completed either. Hope it happens soon!

I'm dying to finish... still praying on those money tree seeds. :laugh:

I hear you about the money tree. I'm selling off all my spare parts to buy more. :laugh:

cool.. keep us posted!! :thumb:

Nitrous, Now that this is almost done when are you getting the VHO????? :doh:

I'm not sure, the wife is wanting a new Tahoe. She might get the new vehicle before me. I really like the new body style and the Avalanche finally has alot more difinition to it. Hmmmm, New Avalanche w/STS? I"m gonna have to wait and see what happens.

Congrats! :cool:
I wish I could have done something like that, butttttttttt being I live in the peepholesrepublicofcaulifornia-
SMOG NAZIS woulf flag it. :nono:
anyway :thumb:

The smog nazies would give you a free pass. They appreciate how much cleaner your engine runs with an LS1 than the 91 engine. Here in Dallas/FtWorth we are required to pass emissions testing regulated by CARB. My truck passed with flying colors just a couple weeks ago. It was waaaaaay cleaner than stock. As long as you keep the stock smog equipment on your truck you won't have an issue. Contact a referee station and find out what you can and cannot do for mods. You can add any 91 and newer engine to your truck as long as you follow their recommendations.

<div class='quotetop'>QUOTE(Yello91Silverado &#064; Jun 2 2006, 11&#58;05 PM) [snapback]54635[/snapback]</div>

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Congrats&#33; :cool:
I wish I could have done something like that, butttttttttt being I live in the peepholesrepublicofcaulifornia-
SMOG NAZIS woulf flag it. :nono:
anyway :thumb:
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Uhh, I&#39;m confused, your sig says you have an&#39;05 5.3 LS engine in your &#39;91. What exactly are you referring to, your &#39;91 or putting a turbo on your crew cab?

I&#39;m sorry,
I was talking about a whole state who should not be aloud to vote do to the state voters incompetence, the law states it has to pass the year engines smog emmissions with its smog equipment ,not the vehicle unless its going into a vehicle pryor to 1972, regardless. :cry:

Hey yello91silverado, My truck was supposed to pass the same way. Your truck is pretty low like mine so maybe they won&#39;t look under it either. Most of these inspection places rely on the rear 02&#39;s to code out if the cats are bad or removed. I disabled all of the items that kept the check engine light on and I was able to pass with no problems. They even said the new motor showed better readings than any of the 97&#39;s with smog equipment. I&#39;m not running any air injection, rear 02&#39;s, fuel purge canister, etc...and I live in a pretty strict area. We have to get anything older than OBDII dynoed for a sticker.

Well I hope it passes,
they are so anal here that they even test the gas cap&#33; :eek:
I still have to get the speedo working and this dakota interface it not working , but once it passes I will slowly start modding it. your truck must be a blast to drive&#33; :thumb:

I like indiana, no tests what so ever.

Nitrous, good work. I want to see some pics of those a/c lines when they are done. I ended up doing the same as you with my a/c. Lots of time and work but worth it. Thanks for the advice. Ryan

I&#39;ll try to get you some pics soon. All of the hoses are installed and I just need to pull a vacuum and charge the system. Having problems shifting at WOT from 3rd to 4th so I need to make some adjustments in HPT. I&#39;ll get it worked out.

I thought everyone said the 3rd to 4th WOT shift was the "Kiss of Death :whack: :grr: "?????

ohh hold up&#33;&#33;&#33; You dont wanna do that man&#33; 3-4 at WOT will be very violent and will kill that tranny quick, no matter what tranny you have in there. Is there a reason you wanna shift there, you should have all you need through 3rd.

Chris

chrisj6 and jethro 3, I replied back to you in the PCM section. I was just playing around with the tune and I more less explained myself wrong. The tranny just didn&#39;t want to shift at all for some reason at 6000 RPM. It does now though&#33; No more tranny issues&#33;&#33;

86LS1Silverado, That block I ordered doesn&#39;t work right with the truck compressor. I didn&#39;t even look but the gasket surface is 3/32 deeper on the HP side. I&#39;m gonna have to do some more machining to make it work right. What lines are you gonna use?

Nitrous, my block didnt work either. I had the same problem you are having plus the male threads hit my manifold. Just wasnt going to work. I ended up using a 04 compressor off a 4.8. The lines come out of the top instead of the back. Between that and the cutting/boxing I did lines shouldnt be a problem. I hope the lines off the 4.8 will work with some minor mods. Ill get some pics up soon.

I took the block I ordered and machined it to fit the NBS truck compressor. Took a little time but it looks like it &#39;s gonna work. I&#39;m gonna install it tomorrow. Wish me luck&#33;

How&#39;s that truck doing, Lance? Has it become a daily driver yet?

Not yet Greg, It can be but I wanted A/C with all the humidity down here. I hate having to wipe the windows every 5 minutes LOL. It&#39;s already proved itself now that I tuned it, I just have to figure out why the LT&#39;s on bank1 and 2 are reading max when driving. At idle they stay -0.8 and 2.3. When driving they max out to 25. The funny thing is I logged it at 25 and it only read -0.8 and 2.3 I don&#39;t know if HPT is acting up or what. It&#39;s rained all weekend so hopefully tonight I can install the A/C block, pull a vacuum and add refrigerant. I can&#39;t wait to see the look on some faces at the track&#33;

That thing is going to open some eyes for sure. You&#39;ll be investing in a set of slicks next. :smile:

Ya, the Nitto Drag Radials I have blow&#33; I can&#39;t even hook up after I smoke them. I guess slicks will be next.

That or some ETs. I think GMCWantsLS1 runs Hoosiers? My hard NASCAR Goodyears hook up okay as long as I avoid the water box. Get into the water box and then you will be driving over the top of the water your front tires are laying down or the water that you spun off of the rears and then onto the fender wells only to fall back onto the tires again.

I run Hoosiers. They had a 29" tire that would fit on my 8" wide rim and DOT. There might be better choices now.

Hey lance, your sensors could be bad. I have seen them read ok at idle then go whacko when you start driving. What are your WOT voltages? If that shows lean then they probably are bad.

Chris

<div class='quotetop'>QUOTE(NITROUS &#064; Jun 19 2006, 05&#58;18 AM) [snapback]55729[/snapback]</div>

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... I just have to figure out why the LT&#39;s on bank1 and 2 are reading max when driving. At idle they stay -0.8 and 2.3. When driving they max out to 25. The funny thing is I logged it at 25 and it only read -0.8 and 2.3 I don&#39;t know if HPT is acting up or what. [/b]

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I have that EXACT SAME issue. It seems to run fine til the engine gets to operating temperature, then all of a sudden, LTFTs for B1&2 are max&#39;d. Then, it seems as if the engine is running really rich, and is hard to accelerate or idle properly.

<div class='quotetop'>QUOTE(chrisj6 &#064; Jun 19 2006, 12&#58;46 PM) [snapback]55742[/snapback]</div>

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Hey lance, your sensors could be bad. I have seen them read ok at idle then go whacko when you start driving. What are your WOT voltages? If that shows lean then they probably are bad.

Chris
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Someone mentioned that to me this past weekend, and I think they were on to something. I looked at some old logs that I took, and noticed that B2 o2 wasn&#39;t reading any voltage (guess 2nd-hand o2s aren&#39;t smart to use). I&#39;m working on my money tree this week to see about some immediate purchases, and o2s may be one of them. Would like to get HPT (I&#39;ve been borrowing a friend&#39;s) to scan & log. That&#39;ll be a while though. Friend not happy with me right now... my poor judgement. Me being a little to excited about exhaust & burnout ability (long story). :sad:

I&#39;ll take a look at the Hoosiers. My problem is locating a 315/35/17 drag radial for a 11" wide rim.

Chris, I&#39;ll look at the sensors and voltage, that sounds logical.

1BADC10, hang in there we&#39;ll figure it out. You definetely need to get HPTuners with that new engine.

Ryan, I did all that machining on my A/C block and a buddy of mine showed me some A/C gaskets with different thicknesses that will allow you to use a standard block with any late model compressor. There must have been 6 different gaskets that ranged from 1/16" all the way to 3/8". I wish I would have known this before. The sealing area is even a little thicker and will compress to compensate for height differences.