The King - a 2002 GMC Yukon XL... 496 CI of STILL not an LS!

ck80

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You might be interested in this. Maybe you’ve already seen it? He plans on building the bottom end and turning up the boost.

I've spent way way too much time looking at raylar's stuff...

2.9L twin screw... their 540ci forged stroker kit..... so on so forth. All in its an easy way to drop gobs of cash, but, I can't picture the 4wd side of things to hold it.

And yet, I keep looking at it. And looking.
 
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ck80

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Meanwhile, tonight is tire replacement ordering night. The ones on it are date coded middle of 2016, so, their 5 year life is over - for me anyways.

Putting a new set of LT265/75/R16 Michelin LTX on order. I looked for a while at the Cooper AT3s but this truck doesn't go off road, and, highway trailering and long haul trips are where it's at.

There's a "flash sale" going on at the moment that gave me $110 off. The extra $70 I'd save on the coopers doesn't seem worth the switch.

I'll end up offering the old ones for sale locally to whoever wants to try and get a couple more years out.

I'm also looking through the site to decide what to replace the other truck's tires with, and, noticed one of the green mustangs I due as well so I'm deciding between 255/45/18s or 235/50/18s all around. Might go 55s since they only weigh 2# more each and would get here sooner....
 

64nailhead

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Geesh, 2016 is too old? Where's you sense of adventure man, I run them until they're 20. - if they were produced in this century, then that's good by me :)


That's a nifty video that L92 posted, but at the end of that youtuber's deal it 's going to be torque monster with boost and still not real fast. Which is great if that's what he's after. It's been tried to crank an 8.1 up with a SBE, but the rotating assembly is too dang heavy to allow for any real power production above peak torque. That makes for alot of windowed blocks, lifted heads and broken ring lands. The idea of making one into a working 800ft/lb camper puller goes south do the heat generation. Yes, it will make 800+ ft/lbs of torque, but not for a 2 mile grade.


But, 600-800 ft/lbs below 5000 rpm's is the definition of a tire burner, especially in a heavy vehicle - and a bunch of fun!!!
 
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ck80

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Geesh, 2016 is too old? Where's you sense of adventure man, I run them until they're 20. - if they were produced in this century, then that's good by me :)


That's a nifty video that L92 posted, but at the end of that youtuber's deal it 's going to be torque monster with boost and still not real fast. Which is great if that's what he's after. It's been tried to crank an 8.1 up with a SBE, but the rotating assembly is too dang heavy to allow for any real power production above peak torque. That makes for alot of windowed blocks, lifted heads and broken ring lands. The idea of making one into a working 800ft/lb camper puller goes south do the heat generation. Yes, it will make 800+ ft/lbs of torque, but not for a 2 mile grade.


But, 600-800 ft/lbs below 5000 rpm's is the definition of a tire burner, especially in a heavy vehicle - and a bunch of fun!!!
Yep, after I moved south my definition of 'acceptable' age changed too.

When I was in New England I too used older tires. But down here trip distances are much longer, and roadway temps are much much higher. Combines to put a lot higher stress on the tires, and, they dry out quicker too. It's one thing when summer temps (80s-90s) start end of June and are done in mid August. Different story when they start in early April and end around Thanksgiving.

My rule now is if they've been on the car 5 years they go. It leaves some useful life in the resale side of things and softens the cost blow to keep things fresh.

The new 265s are gonna cost $806 all-in with the sale. I'll probably ask $450 for the old set, about half what the $228/ea list price was.

The Mustang in question hasn't really been driven much in the last 2 years, probably 50 miles worth of keeping the engine lubed trips in total. Sort of want to change that. But it's on its oem tires I plan to rack away. So the Pilot 4s won't have any offset on the cost.

On the 77, well, it's got a set of LTXs with probably 12k miles that look new, but also are end of 2015 dates. Figure I can probably pull $400 or so out of those vs the $148/ea list on replacements.

Some people don't mind if rubber is soft and tread is nice. Myself, I had tread separation once on a highway, lesson learned.
 

64nailhead

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Yep, after I moved south my definition of 'acceptable' age changed too.

When I was in New England I too used older tires. But down here trip distances are much longer, and roadway temps are much much higher. Combines to put a lot higher stress on the tires, and, they dry out quicker too. It's one thing when summer temps (80s-90s) start end of June and are done in mid August. Different story when they start in early April and end around Thanksgiving.


Good point and well taken sir ;) Never thought about that.
 

L92 OLDS

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I can't picture the 4wd side of things to hold it.

And yet, I keep looking at it. And looking.

Select GM transfer cases and the IFS set up are much stronger than poeple give them credit for. My bothers blown ZL1 Avalanche gets driven hard in the sand at Silver Lake sand dunes and it makes North of 750 hp. After 2 years of abuse it is still going strong.
 
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Supercharged111

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I've spent way way too much time looking at raylar's stuff...

2.9L twin screw... their 540ci forged stroker kit..... so on so forth. All in its an easy way to drop gobs of cash, but, I can't picture the 4wd side of things to hold it.

And yet, I keep looking at it. And looking.

The dually in my sig is a supercharged 454 Vortec with 4L80E and BW transfer case. They seem to be doing just fine at or over 20k GCW. I wouldn't hesitate to boost that pig, but chances are a little exhaust and a tune will be all you'll ever need.
 

ck80

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So while my pilot 4s arrived and are sitting tucked in the garage sleeping with their destination, apparently I had a message today that my 265s for the truck would be delayed.?.?

Customer service told me that they didn't have a certain date for in-stock because of how shipping has been. BUT. they did say that if I preferred to order a different tire they would do a goodwill discount to match the sale discounts I would've gotten before. All I have to do is let them know.

So. It appears they have 285/75/16s I could get. And it looks like a stock suspension can handle those (autoride is too much work to delete and lift so stock it will likely stay.) IIRC that's around a 33" tire. In a lesser truck it'd hurt the towing. In this one, no concern for my purposes... so hrmm.... decisions.
 

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