2500HD upgrades?

6.slow · November 10, 2005

I've got to find something to make my 6.slow move out of it's own way. It's all stock 'cept 285's and K&N air filter. Needs something. Any ideas. I ain't rich either... Anything...?

Silverado4x4 · November 10, 2005

Huh,what? What do you mean? you have a 6 cylinder in your 2500HD?

6.slow · November 10, 2005

Huh,what? What do you mean? you have a 6 cylinder in your 2500HD?

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No, I've got a 6.0L V8, but it's slow. I'm looking to make it get up and go more.

Shaners · November 10, 2005

The best bang for the buck is to get a custom tuned PCM. It will ad performance plus you can have it programmed for your 285's so your speedo will be correct.

Prices vary depending on who you have tune the PCM. It's a swap out of the computer and only takes a few minutes, and then you send your stock unit back as a core.

6.slow · November 10, 2005

The best bang for the buck is to get a custom tuned PCM. It will ad performance plus you can have it programmed for your 285's so your speedo will be correct.

Prices vary depending on who you have tune the PCM. It's a swap out of the computer and only takes a few minutes, and then you send your stock unit back as a core.

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Hey, thanks man. I've got my speedo changed by a friend already. How does a guy go about doing such? I ain't much of a gearhead anymore, since the trucks got more complicated...

trever1t · November 10, 2005

Tune is the best bang for the $$ buck and there are a few options for the tune. I opted for Wester's (mucho $$) because of what i read about his tunes and i wanted minimal headaches. I got what i wanted and my truck screams!

Other mods you should look at are a muffler change or complete cat-back system. Borla, Magnaflow, Corsa etc etc.

With the intake, exhaust and tune you should be happy. I went and put on shorty headers (c.a.r.b. legal) which gave me another 6-10 hp?

Once you start you'll never stop. It is a terrible disease, this modisitus!

Mighty HD · November 10, 2005

Get you a tune and go with Nelson's. Mine hauls ass now.

I got 100% of tm removed on engine/trans

shift points adjusted a bit

shifts firmed up a PINCH

throttle is open 100% when 100% is requested (no longer any of that BS where you're on the floor @ 100% and you get 75%)

throttle 100% open through shifts--no delay or timing retard through shifts.

Bottom line it hauls ass, my gas mileage went up 4mpg in the city and about 5 hwy average. It'll pay for itself in no time.

Nelson has really got his act together. I suggest him over Westers simply because he's in the states and its cheaper to ship back and forth to him if needed.

6.slow · November 10, 2005

Get you a tune and go with Nelson's. Mine hauls ass now.

I got 100% of tm removed on engine/trans

shift points adjusted a bit

shifts firmed up a PINCH

throttle is open 100% when 100% is requested (no longer any of that BS where you're on the floor @ 100% and you get 75%)

throttle 100% open through shifts--no delay or timing retard through shifts.

Bottom line it hauls ass, my gas mileage went up 4mpg in the city and about 5 hwy average. It'll pay for itself in no time.

Nelson has really got his act together. I suggest him over Westers simply because he's in the states and its cheaper to ship back and forth to him if needed.

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Anything to help gas mileage. so, how do I get in touch with Nelson and what did you pay for this? Any information you'd like to share would be nice. Is there any warrenty or danger of engine damage? Thanks for the help.

Mighty HD · November 10, 2005

People will say to go to cheaper places like wait-for-me tune, or PCM for less. You get what you pay for.

Nelson is pricey, but WELL worth it.

http://www.nelsonperformance.com/service.htm?

Mighty HD · November 10, 2005

I also forgot to mention I got the 89-93 tune...i requested this one specifically (its not listed),

$490, I paid $150 to keep the core (so when it goes to the dealer i swap back in the factory pcm), and like $25 for 2 day shipping from Texas.

It has nearly paid for itself in the gas mileage increase.

SS Crew · November 10, 2005

Put a PM out to MrQuadrasteer, he's a rep for Wester's and could probably swing a group purcahse discount if 5 (don't quote me) or more purchase a tune, the more that purchase the greater the discount.

Whoever you go with, it will be the best bang for the buck.

03GMC2500HD · November 11, 2005

People will say to go to cheaper places like wait-for-me tune, or PCM for less. You get what you pay for.

Nelson is pricey, but WELL worth it.

http://www.nelsonperformance.com/service.htm?

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You say you get what you pay for so i am wondering what "extra" performance you get with the Nelson tune for the extra $507 you spent on the Nelson vs. going with say a "cheaper" W4M tune? I find it kinda hard to believe there actually is a $500 difference in performance, and if you have never run both how would you know? Just asking!

SS Crew · November 11, 2005

Well, what I hear is that the W4M tunes are pretty good, but there is almost always an SES code that needs to be cleared or crankshaft relearn procedure that needs to be done. I have yet to hear of any of these problems with the Wester's or Nelson tunes.

Can you put a price on convenience and things working right the first time?

03GMC2500HD · November 11, 2005

Well, what I hear is that the W4M tunes are pretty good, but there is almost always an SES code that needs to be cleared or crankshaft relearn procedure that needs to be done. I have yet to hear of any of these problems with the Wester's or Nelson tunes.

Can you put a price on convenience and things working right the first time?

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If the light does come on it does not mean things are not working right the first time. A simple relearn that takes about 5 min is all that is needed. $500 dollar for 5 min work. I can do a lot of relearns for that. I have also read that the reason the Westers and others do not have the light come on is because they program it not to come on. Still needs to be done...just doesn't show up???

GMC6000 · November 11, 2005

I have a preference for the Diablo Predator handheld tuner. You can change settings yourself without having a complete ECM changeout. Sure woke my 6.0 up.