Well, I crossed 500 miles on my SS T/C the other day and I noticed something kinda funny. I was accelerating hard in 1st as I do on occasion, and it sounded like the turbo was actually spooling up.

I checked again later with the boost gauge and, sure enough. There was boost in 1st gear. The car has never boosted in 1st gear since I owned it.

Perhaps the PCM is tuned this way to protect the engine somehow? *shrugs* Maybe the car will liven up in a few more places that've felt a little.... lacking.

 

Although there are mixed opinions, I don't think the engine should be bagged off the get go. I waited til 805km then drove it like I planned to.

I do believe green engines are "detuned" until a certain mileage though.

 

I have boost in 1st gear

 

you have a 500 break in and a 1000 mile break in.

 

Can't wait for 1k then!

 

You're also not on stock tune.

 

Corvettes are tuned this way, as are the Duramax and VORTEC trucks. The engine's limited performance below a certain RPM and I even think the rev limits of the vette and vortec are reduced a few hundred rpm. I talked to some guys on the midwest vette forums and nobody seems to be shotgun sure on the matter. Maybe More HP More Torque will see this and get an answer for us. In the construction industry this is standard practice for all new equipment, the customer doesn't know this but machine productivity is reduced until it hits 250 hours. Nobody notices because a new machine takes some learning to get a rhythm out of it.

I have one thing to add. It is confirmed that on Duramax trucks if your oil life meter is below 20% the engine torque management is reduced to 85%.

 

With all the other electronic safeties these cars seem to have it wouldn't surprise me

 

that explains a lot... my car made 18psi in 1st gear the other day around 700 miles on the clock tho lol

 

My car only makes like 7psi in 1st gear and I'm at about 16000miles or so. I make 20 in second.

That's odd.

 

Torque in 1st gear is heavily managed by the ECM to avoid stupid amounts of tire spin on the TCs. That's normal depending on conditions, what mode you're in, etc. BYT or Term probably know exactly how much boost is allowed in first based on the air loads, throttle position, etc.

 

55-64% torque depending on rpm in first.

 

we thought it was crazy because it had made 7psi with everything on, 11psi after launch control and then 18psi with everything off...

hearsay is 1000miles and the car has a normal tune completely...

 

Thanks