6.2 Throttle Lag

[sinnerz]

I've also been looking into the booster to fix this issue. But after installing a Volant air intake, throttle response was greatly improved plus I've added 1.5 mpg... (Calulated over 3 full tanks and averaged) I have been pretty upset with how the ecu talks to the TCM and have all the issues like everyone else like the clunky downshifts and hard upshifts between 1,2, and 3rd. Can't believe the improvement with just an aftermarket intake. No more hard shifts, up or down on my last 3 tanks. Might want to give that a shot if you don't mind the throaty tone they give off. Sounds like it has aftermarket exhaust when you get on it...doesn't drone at all at highway speeds though.

[rmart]

Years ago (2005?) I put a K&N air cleaner (tube and filter with cold air box) on my 2000 Silverado.

At the time there was word out that having such a modification on your truck dramatically increased the chances of your warranty being voided, especially if you had transmission problems.

Something about residual oil gunking up your mass airflow sensor and affecting the way your transmission shifted.

(That's why I waited until 2005 to put it on)

 

Any truth to that rumor? Would that still apply today?

[Rewillia]

'14 6.2 No Lag here.

[wandern]

From the looks of this thing, it's simply an artificial advance on the throttle signal. Ie, it intercepts the signal, adds 10%, etc, and fires it off to the ecu/throttle body. So it's not eliminating any throttle lag, it's simply opening the throttle more for a certain gas pedal position than stock. Pretty pricy if that is all that it's doing, just push the gas pedal faster.

 

GM usually puts a dead spot at the bottle end to allow you to roll into throttle more, ie, help prevent lurching and smoking the tires from a stop when you hit the gas pedal.

 

For the actual throttle/acceleration lag, an ECU tune and transmission tune can easily fix it. A transmission tune helps the truck kick down more quickly, and the ECU tune helps in quite a few different ways, one of which is reducing the PE (power enrichment, ie, open loop fueling) cycle lag time when you go to wide open throttle.

 

That's a great point. Although the throttle seems a little 'dead' when sprinting around on city streets, the throttle response is actually great for off-road driving (even driving on dirt or gravel roads), especially when unloaded or starting uphill, driving in snow, etc.

 

These are _trucks_, after all, and many people use them for activities where traction isn't abundant and fine control is necessary.

[Truckmed13]

'14 6.2 No Lag here.

lucky!

'14 6.2 No Lag here.

lucky!

[Payton34]

So the sprint booster is $300 and a tuner or custom tune is about the same and you have many for options and features with a tuner. Why not just get a tuner? What is the advantage of the sprint booster? Can't all the plug in tuners remove the throttle lag?

[2018GMC]

So the sprint booster is $300 and a tuner or custom tune is about the same and you have many for options and features with a tuner. Why not just get a tuner? What is the advantage of the sprint booster? Can't all the plug in tuners remove the throttle lag?

 

 

Maybe the Sprint Boosted will not void manufacturers warranty? We all know a full ECM and TCM tune will void warranty.

[RobDarden]

I've had the same occurrence with my 5.3. It never does it from a dead stop, but a rolling start can be an issue. It's got to be something in the programming. It's scared me before when I need quick acceleration to not be hit, I floor it and....nothing....delay...acceleration. It seemed like along time but it was probably only a second...still disheartening. I've learned to work around it. It's good acceleration once the delay passes or when the delay doesn't happen. I guess they are still working out throttle-by-wire.

 

 

Sent from my iPad using Tapatalk HD

[Spurshot]

 

 

Maybe the Sprint Boosted will not void manufacturers warranty? We all know a full ECM and TCM tune will void warranty.

 

 

Only for issues that can be attributed to the modification.

[KARNUT]

I can see them having an argument on the transmission if you remove all the TM and you break something in the transmission. The engine with a can tune you only gain 15 HP with a 93 gas tune. You gain more than that running E85 stock with a 5.3. As far as turning off the V4 that wouldn't hurt anything.

 

 

Sent from my iPhone using Tapatalk

[redwngr]

I understand the arguments, but their view is that they warranty their product with their programming, not somebody else's.

 

If they did otherwise, the next issue would be abc's tune at 15HP boost is ok, why not xyz's tune at 25 hp boost....etc, etc, etc.

 

What if you favorite programmer promised a 15Hp tune, but actually delivere a 50Hp tune? Who would be responsible then? etc etc

[KARNUT]

Really? Big name can tuners have a reputation to protect. I've been using them since they'd been around. If a can tune could give 25HP safely they would do it, and advertise it.

 

 

Sent from my iPhone using Tapatalk

[redwngr]

If they are so sure why don't they provide a replacement for the gm warranty?

[KARNUT]

GM has to prove the product caused the failure. I'm sure the tuner would love to back their product in that dispute. This is not the only forum I visit I have had other tuner cars and trucks and never had heard or read claims denied over a can tune, other than diesel.

 

 

Sent from my iPhone using Tapatalk

[bdbake01]

glad to here that i may have to try one, I found a guy that will do the ecm programing just waiting to here from him

and wheres a pic of the C10

Heres ours we just finished

 

Sweeeet ride. Those handles and keyholes are just begging to be shaved/filled.