Since I installed my pulley and tune, I hit the overdrive button first to get it into 3rd before engaging into any shennanigans on the street.

Alledgedly

Can't hurt, can it?

 

Of course it was the tune, you leaned out. What else caused it? You blow when you lean out, kickdown or not.

Was the tune from a guy with a four letter name? Or one of the 3 letter name guys?

45 isnt to cold, I am in Canada and I run a 6 lower ported eaton and a 75 shot fine.

Kickdowns or higher runs put stress on the engine, if your tune cannot handle it, your done.

Get a Wideband.

 

 

I hear ya. Me and my old man had the same mods on our 2000 trucks. We both had the same mail order tune. My a/f was in the 10's when i went to get redyno tuned. My old man took his for a blast and his lower end was all over 95. Not from a kickdown. Stoped and started from the side of the road.

Never knew if his was lean or not because he bought a 2003 after than which used a different chip. Just goes to show how different each and every truck is.

Anyone else see the post on the difference on stock cam shafts??


Like the saying goes, be carefull on discounted prices when shopping brain surgery, parachutes, and medical/dental care. Add tunes to that list.

Get dyno tuned, or at least get an a/f so your tuner can dial you in. If you are running in cold weather, make sure your tuner knows that.

 

I can't believe anyone would want to own and spend money on a fuggin vehicle that they can't kickdown at 60-70. Get a good dyno tune on your truck and have fun. I've kicked mine down hundreds of times. That surge forward Still running like a top. Almost 100k miles. Guess I'm RETARDED.......If I couldn't do that, I'd be in a Mopar.

BD

 

Heres my opinion, why bolt on parts without getting a tune? It makes no sense to me to just bolt on a box of parts an hope it works out, on top of being risky your not going to get the most out of your upgrades. Todd

 

You can get lean for many reasons. I dont think the question is if it was lean. The question was how it got that way... Is this your first attempt to educate someone on this subject? If the MAF or a Fuel pump fails its not the tune...I dont know if you know that or not.

"45 isnt to cold, I am in Canada and I run a 6 lower ported eaton and a 75 shot fine."

So whats your point? I have a friend with a 2000 running 15 psi a ported blower and NO tune on a truck with 115,000 miles...oh, he runs it in any weather. He broke all the rules. 60+ mph kickdowns all the time....Still running strong.

 

Lol, So you think your MAF "failed" I assume you mean you pegged it and went lean.

If your pump "failed" I think you would know it.

My point is, I got a good dyno tune. Therefore I can do kickdowns in any weather without blowing it, when I got my mail order like I said before my A/F was at 13.5.....

Did you get it checked out to see what happened? If your fuel pump went out, or your MAF "failed" then you should already know so.

A Dynotune would also let you know if you are pegging your MAF Voltage.

Bottom line, if you get a mail order tune and you dont have a wideband your playing with fire, but then you already know that now

 

Lol, So when its 45 degrees out MAF's and Fuel Pumps "fail".

So who was the tune by? RWTD? PSP? JDM? LFP? JLP?

 

I wish we knew exactly what happened on most of the kickdowns that caused blown motors.

Is it?:

1. Too much timing from the cold weather computer reaction?
2. Lean spot when mashing open the throttle blades?
3. Somthing about kickdowns that shocks the rods?

If you turn off overdrive before stepping on it at highway speeds, is this something that makes a big difference toward NOT blowing up these motors?

How many have started in 3rd gear from a highway speed and still blew it up?