How often is too often for WOT operation

[crafferty]

Ask this gentleman right here, he's had the answer for years!

 

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[jrob56]

Is this a real question, it was designed to be able to run that. Unless you move rev limiter, speed limiter, or are being an idiot pretty much as much as you want. The LS engines with higher miles tended to run better/harder if they were flogged young. Buddy had several B4C Camaro cop cars and those things were rode hard, had a long life, and ran great! Mod for mod always edged my z28 and were functionally the same. Nothing special about the B4C's.

 

Engines are designed to be ran, not made out of glass. Hard to hurt them if its stock unless your doing something dumb like I said.

[LongrangeLauber]

Brings up a good point, there is no red line on these trucks. My 02 didn't have one either and the pedal seemed to stay to the floor, but so were my 4L60E trannys every 6 months [emoji38]

[cornfed81]

Is this a real question, it was designed to be able to run that. Unless you move rev limiter, speed limiter, or are being an idiot pretty much as much as you want. The LS engines with higher miles tended to run better/harder if they were flogged young. Buddy had several B4C Camaro cop cars and those things were rode hard, had a long life, and ran great! Mod for mod always edged my z28 and were functionally the same. Nothing special about the B4C's.

 

Engines are designed to be ran, not made out of glass. Hard to hurt them if its stock unless your doing something dumb like I said.

Um yes this a real question. And thank you for your reply and all the others too. I mainly just wanted to see how often others do it more than I'm concerned about hurting anything. But with these new engines being a different design than previous models. (DI engines) i was curious whether it's more hard on the engines now or the same as before.

[99-ls1-ss]

Every LS motor I've ever had, I've run the hell out of all of them and they have taken it all. If you maintain your motor with regular service, it should last you as many WOTs as you can muster.

[txab]

Thee is no such thing as "too often"

[Badass69]

Above poster is correct... no such thing. I flog this truck like anything else I have ever owned lol. My 05 has 170000 miles, 5300 hours on it and the WOT shifts are at 5900 rpm ( up from 5200 stock) on the old LQ4 and it runs like a champ. I treat anything I own the exact same way.

[jrob56]

Brings up a good point, there is no red line on these trucks. My 02 didn't have one either and the pedal seemed to stay to the floor, but so were my 4L60E trannys every 6 months [emoji38]

 

Its just not shown in red font on the cluster, like the performance variants. They just stopped the gauge just past the limiter. I dont know exactly but anyone who has tuned one would know if they want to chime in. Looked like just shy of 6000 was the shift point 58-5900. Imagine the limiter is 6000. I dont know if you can hit the limiter in these trucks or not if you hold a gear.

 

From my recollection most LS engines were around that 6000 shift point, its been awhile though. Think the camaros and such showed red line past 6k.

[Badass69]

 

Its just not shown in red font on the cluster, like the performance variants. They just stopped the gauge just past the limiter. I dont know exactly but anyone who has tuned one would know if they want to chime in. Looked like just shy of 6000 was the shift point 58-5900. Imagine the limiter is 6000. I dont know if you can hit the limiter in these trucks or not if you hold a gear.

 

From my recollection most LS engines were around that 6000 shift point, its been awhile though. Think the camaros and such showed red line past 6k.

 

LQ4 and LQ9 anyway were 5200 rpm WOT. Rev limiter was 5700 rpm stock and kicks off at 5650. Mine sits at 5900 rpm and 6200 rpm limiter now... I tuned the trucks myself with EFILive.

[jrob56]

Um yes this a real question. And thank you for your reply and all the others too. I mainly just wanted to see how often others do it more than I'm concerned about hurting anything. But with these new engines being a different design than previous models. (DI engines) i was curious whether it's more hard on the engines now or the same as before.

Sorry didnt mean for that to come off quite as mean as that sounded, but it did. Point was dont sweat it, I dont beat on it to beat on it like I have some of my GM performance cars, but if you feel the urge or need to get going dont sweat it. They can take a lot more than what stock limits allow.

 

[jrob56]

 

LQ4 and LQ9 anyway were 5200 rpm WOT. Rev limiter was 5600 rpm stock. Mine sits at 5900 rpm and 6200 rpm limiter now... I tuned the trucks myself with EFILive.

Ahh thank you for the correction, bet all gen 3 LS engines were close to that. Think I was thinking of what tuners usually bumped them up to like you did.

[Badass69]

I went by memory and then edited my post once I opened a couple tune files lol. The rev limiter is 5700 stock and renables at 5650. 5200 is the stock WOT shift though. Funny thing too as these are from HD trucks as well.... and GM liked to only rate the engine at 4400 rpm but let it rev to 5200 like the half tons anyhow lol.

[bdbake01]

Much north of 6200 and you'll start to float the valves. Sit there long enough (any M6 Camaro guys here???) and you'll own some warped pushrods. But that's a cheap fix.

 

My cammed and sprung LS1 has the cap at 6800 if I recall. Ran it at 7k for dyno. Didn't really see any gains, and pretty tough on the tranny. But OMG the wail from the open headers!

[JRaschke11]

I like this thread. I go WOT once or twice a week in my 6.2 Denali. It's great for freeway ramps and general stress relief.

 

I ran my 02 ZO6 hard as hell and put er away wet. It was safe to assume that if I left my driveway I was probably hitting redline or close to it. Love these engines. Keep up with your basic checks and maintenance and they will last forever.

[Truckin 55]

After driving a Slo-Poke 62 mph Freightliner and dodging Distracted Retards , a W.O.T usually happens everyday. Airaid with Corsa Exhaust sounds great but W.O.T with 4.8 Vortec and Magnaflows was even better