No Lift Shift- Trifecta
- Thread starter BNRacing
- Start date
laborsmith
New member
No extra cost for Trifecta.
GM does offer vehicles that allow the driver to do what the poster on the previous page proposes. Chevy's versions use ZR1 and ZL1 as their identifiers.
Laborsmith
GM does offer vehicles that allow the driver to do what the poster on the previous page proposes. Chevy's versions use ZR1 and ZL1 as their identifiers.
Laborsmith
DeltaDaddy-T
New member
Installing Trifcta tube
Jerry,
Do u have to have cruise control to install the trifect and be able to switch modes?
Jerry,
Do u have to have cruise control to install the trifect and be able to switch modes?
SonicChris
Banned
It doesn't effect the operation of the cruise, does it?
Sonny@bnr
Supporting Vendor
no, cruise control still works as normal
Opticon
New member
Was this ever successfully overcome?
I can't even WOT shift with a STOCK tune without pissing off the traction control.
Frizodanizzo
New member
Knowing your clutch
Knowing your clutch alone will give you better 0-60 times, you don't need no lift shifting to go faster. I had a neon before I boosted... By 150k miles I was still rocking the same clutch while the engine started burning oil. I had this thing red lined any chance I could. I don't know but me personally just knowing my clutch helps. knowing when it actually starts releasing from the flywheel. My neon would let loose after about 3 inches, the clutch would let go. If you can hit that mark and throw the thing into gear quick enough you're gold. To me I think it helps a lot can save from having to go to the floor all the time.
Knowing your clutch alone will give you better 0-60 times, you don't need no lift shifting to go faster. I had a neon before I boosted... By 150k miles I was still rocking the same clutch while the engine started burning oil. I had this thing red lined any chance I could. I don't know but me personally just knowing my clutch helps. knowing when it actually starts releasing from the flywheel. My neon would let loose after about 3 inches, the clutch would let go. If you can hit that mark and throw the thing into gear quick enough you're gold. To me I think it helps a lot can save from having to go to the floor all the time.
BNRacing
Supporting Vendor
No-Lift-Shift is actually a computer controlled algorithm in the ECM that will allow the turbo to remain in full boost between gears, allowing you to hit the next gear at full boost without having to respool the turbo. Yes, it will allow you to go faster than not using it.
sx sonic
New member
BNR could u elaborate more on how the No-Lift Shift functions?
I understand it holds boost up, so I realize the bpv stays closed. But I'm curious what else is different, is the engine still producing full power with the clutch engaged, or is the ecm temporarily pulling output and just not pulling boost?
Thanks
-tyler
I understand it holds boost up, so I realize the bpv stays closed. But I'm curious what else is different, is the engine still producing full power with the clutch engaged, or is the ecm temporarily pulling output and just not pulling boost?
Thanks
-tyler
BNRacing
Supporting Vendor
No lift shift (NLS) is a term GM used to describe a manual transmission shifting technique first supported on the 2008-2009 Pontiac Solstice GXP / Saturn Sky Redline, 2008-2010 Chevrolet Cobalt SS/TC, and 2008-2010 Chevrolet HHR SS. It is debatable whether the 2007 Pontiac Solstice GXP / Saturn Sky Redline supported it, but based on the fact they do not have a sweeping-range clutch pedal position (CPP) switch, it seems unlikely.
Procedurally, NLS is essentially "power shifting", which is a shifting technique where the accelerator is held to the floor while the clutch is depressed, and the transmission is shifted, then the clutch is released with the accelerator still at the floor. The idea is the engine stays at full power all the way through the shift.
When you "power shift", you rely on the vehicle to have a maximum RPM limiter (rev limiter) to prevent the engine from over-revving and suffering damage. What makes GM's NLS unique is the fact that the engine controller's (ECM) rev limiter works differently under NLS circumstances. Normally when you hit the rev limiter, the ECM simply closes the throttle (which dumps the boost on turbocharged engines). With NLS, the ECM keeps the throttle wide open and simply uses a different over-revving strategy (a combination of fuel and timing cut). This prevents the boost from being dumped.
At the time of this writing, from the factory, none of the 1.4L turbocharged vehicles support NLS - in other words, the boost always gets dumped if you try to "power shift" them. However, one of the Trifecta exclusive features is that we figured out how to add NLS to the 1.4L turbocharged vehicles, and we can do this if requested.
Procedurally, NLS is essentially "power shifting", which is a shifting technique where the accelerator is held to the floor while the clutch is depressed, and the transmission is shifted, then the clutch is released with the accelerator still at the floor. The idea is the engine stays at full power all the way through the shift.
When you "power shift", you rely on the vehicle to have a maximum RPM limiter (rev limiter) to prevent the engine from over-revving and suffering damage. What makes GM's NLS unique is the fact that the engine controller's (ECM) rev limiter works differently under NLS circumstances. Normally when you hit the rev limiter, the ECM simply closes the throttle (which dumps the boost on turbocharged engines). With NLS, the ECM keeps the throttle wide open and simply uses a different over-revving strategy (a combination of fuel and timing cut). This prevents the boost from being dumped.
At the time of this writing, from the factory, none of the 1.4L turbocharged vehicles support NLS - in other words, the boost always gets dumped if you try to "power shift" them. However, one of the Trifecta exclusive features is that we figured out how to add NLS to the 1.4L turbocharged vehicles, and we can do this if requested.
Eric Smit
Enforcer
Eric Smit
Enforcer
In the future, you could get one of those prepaid Visas. I believe it's only like $5 for the card, and then you load however much you want. Just a thought, and I might be mistaken.
-Eric Smit
SSpeckerwood
New member
i agree eric. if there's a means, there's a method.
