LS3 rev limiter - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Gonzo SS · 10-02-2016, 09:19 PM

So I was driving hard in 2nd gear and by the time I looked down I was at 7k RPM's. The power seemed to cut off right as I lifted off the throttle. I've never revved it that high before as I'm usually paying closer attention to the tach.

After reading a bunch of threads about the rev limiter the consensus is that it kicks in at around 6500 or 6600. If so, why did I get up to 7k if not a bit over? Is this normal? All nannies were on, not that that seems to matter. I bought the car used so it's possible that it's been tuned.

BubbaSS · 10-02-2016, 10:25 PM

Definitely tuned

Gunmetal Speedster · 10-03-2016, 03:32 AM

I did this last week as well, hard pull in 3rd and I wasnt paying attention when the power suddenly got cut..

Something was distracting me in the car after pulling an all-nighter and I was being obnoxious. Couldn't tell if I hit the limiter or what happened, seeing how I've never done that before. But it still seems to run as good as ever so no harm done I assume lol

Ducatiman · 10-03-2016, 08:10 AM

Does anyone know if GM records and stores each and every rev limit hit? Some manufacturers do and make the data available to a potential purchaser.

ytown87 · 10-03-2016, 08:16 AM

Quote:

Originally Posted by Ducatiman

Does anyone know if GM records and stores each and every rev limit hit? Some manufacturers do and make the data available to a potential purchaser.

LOL no they do not on a Camaro. This is GM we are talking about here who is the game of numbers more than anything.

OP, rev limits on stock is 6250. You are definitely tuned. Another way to find out is see if the car goes past 155. It most likely does now. Do this on a safe closed course though (disclaimer) OR just have someone check your tune. The dealership can also plug in and see that the car was tuned as well if you want to go the easiest route.

frankwjr · 10-03-2016, 08:30 AM

Or.....get a tuner! Is the car stock? If so, I would be wanting to know why it was tuned and how...

Another q for all, since he now is tuned, where is his stock tune? Can GM put the stock tune back in so a tuner can then modify?

race24x · 10-03-2016, 08:33 AM

Are all cars limited to 155? I read on the internet somewhere top speed for these cars was 184?

Norm Peterson · 10-03-2016, 09:57 AM

Cars that are limited to 155 are limited to that speed by the speed rating of the tires installed on them as OE. Without the limiter (and with speed-appropriate tires) the cars could run anywhere from a mph or two faster than that up to over 200 mph.

IIRC, stock SS's would be capable of low to maybe mid 170's in the absence of any speed limiting. 180+ is ZL1 and Z/28 territory, again stock.

Norm

WannaBgeneral · 10-03-2016, 10:15 AM

That's mayB a Euro(non imperial) readout on the tach. (believe me)...

Norm Peterson · 10-03-2016, 10:37 AM

Quote:

Originally Posted by WannaBgeneral

That's mayB a Euro(non imperial) readout on the tach. (believe me)...

Ummm, rpm is rpm regardless of the measurement system in use. Though you might see it abbreviated "U/min" elsewhere in the world, it's still in terms of revolutions and minutes.

Norm

CamaroFred · 10-03-2016, 10:52 AM

The rev limiter is set at 6600 RPM on the LS3 but you may go a hundred or two over from momentum if you don't lift or disengage the clutch.

The L99 is 6200.

ytown87 · 10-03-2016, 11:56 AM

Quote:

Originally Posted by Norm Peterson

Cars that are limited to 155 are limited to that speed by the speed rating of the tires installed on them as OE. Without the limiter (and with speed-appropriate tires) the cars could run anywhere from a mph or two faster than that up to over 200 mph.

IIRC, stock SS's would be capable of low to maybe mid 170's in the absence of any speed limiting. 180+ is ZL1 and Z/28 territory, again stock.

Norm

^^^+1

Quote:

Originally Posted by race24x

Are all cars limited to 155? I read on the internet somewhere top speed for these cars was 184?

Pirelli PZero's are rated for much higher than 155. 186 to be exact but you can take them much higher than that. Which is faster than any stock SS with no limiter is capable of achieving. Most cars are limited due to safety regulations and aero design. Have you driven a stock SS up to 155? or a modified LS3 with stock suspension beyond that? The aero and suspension on these cars aren't the most confidence building above 150. Many do it BUT drive your Camaro over 140-150 and then drive a BMW M3/M5/335..etc and you can tell the difference. Remember, the aero on these cars wasn't designed to allow easily getting to 200 even though the engine definitely could.

Heck...back in 2010 or 2011 there was an article that showed where a stock LS3 SS was drag limited to 174 at Bonneville. From personal experience I can say this car starts to hit the wall around 160 if not modded to get over that. Above 170 and I could count Mississippi's in between digits.

ALSO OP: I wouldn't be taking my engine up to 7k rpm all that much on the stock valve train IF that's what you have (most likely with no cam). With dual valve springs yes but not with stock

Jasper · 10-03-2016, 12:15 PM

I hit the limiter all the time. It always feels like the car wants to keep pulling which is why I miss the shift. I wish it could go higher but obviously it's there for a reason.

Norm Peterson · 10-03-2016, 12:18 PM

There at least used to be a "gentleman's agreement" among many or most of the European mfrs to limit at least sedans to 155 mph (conveniently close to 250 kph).

Perhaps that was the inspiration?

My bad on the "W" tire speed spec - W-rated tires are good for a bit more than 155 mph (168 per Tire Rack's tech information center).

Norm

10-02-2016, 09:19 PM	#1
Gonzo SS Drives: 2012 IBM 2SS/RS LS3/M6 Join Date: Apr 2015 Location: Atlanta, GA Posts: 354	LS3 rev limiter So I was driving hard in 2nd gear and by the time I looked down I was at 7k RPM's. The power seemed to cut off right as I lifted off the throttle. I've never revved it that high before as I'm usually paying closer attention to the tach. After reading a bunch of threads about the rev limiter the consensus is that it kicks in at around 6500 or 6600. If so, why did I get up to 7k if not a bit over? Is this normal? All nannies were on, not that that seems to matter. I bought the car used so it's possible that it's been tuned. __________________ Stainless Power LT Headers, K&N Typhoon CAI, VMAX Ported Throttle Body, Jannetty Tune, Phastek Scoop & Washer Bottle Relocator, VTC Resonator Delete w/Flowmaster Super 10's, BMR Lowering Springs, Koni Orange Struts, Factory Hurst Short Throw Shifter, Skip Shift Eliminator, DRL & Halo Harness, Window Valet Scosche Kit w/Pioneer AVH-4100NEX, Lloyds Custom Mats, Blue LED Footwell Lighting

10-02-2016, 10:25 PM	#2
BubbaSS WHAT RED LIGHT?! Drives: 2011 Black Camaro 2SS/RS M6 Join Date: Apr 2011 Location: Miami, Florida Posts: 1,115	Definitely tuned __________________ 2011 2SS/RS M6 BLACK - VARARAM NO TUNE INTAKE, MODDED AND PORTED TB, PORTED INTAKE MANIFOLD, VITESSE THROTTLE CONTROLLER, DOUG THORLEY LT'S, CATLESS, X-PIPE, 25" STAINLESS WORKS RETRO CHAMBERED MUFFLERS, CUSTOM 2.5" MANDREL BENT EXHAUST, RICHMOND 4.10 GEARS, CUSTOM CAM (231/242 @ 114LSA), MUSTANG DYNO TUNED BY TORQ, 20% CERAMIC TINTS, EIBACH PROKIT SPRINGS 1" DROP, HAWK PERFORMANCE CERAMIC BRAKES, NITTO INVO TIRES, HYDROCARBON TAIL LIGHT AND FOG LIGHT BEZELS BY EMBLEMPROS, METRA DASH KIT, JVC KW-AV71BT, PHOENIX GOLD iAMP GM1, PASSPORT QI45 - 450 RWHP 415 RWTQ

10-03-2016, 03:32 AM	#3
Gunmetal Speedster Drives: Savitar; The 500rwhp N/A Monster! Join Date: Aug 2016 Location: Middletown, Ohio Posts: 2,914 View My Garage	I did this last week as well, hard pull in 3rd and I wasnt paying attention when the power suddenly got cut.. Something was distracting me in the car after pulling an all-nighter and I was being obnoxious. Couldn't tell if I hit the limiter or what happened, seeing how I've never done that before. But it still seems to run as good as ever so no harm done I assume lol __________________ **SOLD504HP/433**TQ \| Night Fury cammed • Cold Air Inductions intake • Bo White ported TB • Speed Engineering 1 7/8 longtubes • NPP catback • QTP low profile cutouts • Powerbond 25% UDP • 3.73 gears • JRE scoop • ZL1 grille • R1 Concepts drilled/slotted rotors • built/tuned by Weapon X Motorsports Instagram \| YouTube \| Build Thread

10-03-2016, 08:30 AM	#6
frankwjr Drives: 2010 SS 2SS M6 Join Date: Aug 2016 Location: Smithsburg, Md. Posts: 2,445	Or.....get a tuner! Is the car stock? If so, I would be wanting to know why it was tuned and how... Another q for all, since he now is tuned, where is his stock tune? Can GM put the stock tune back in so a tuner can then modify? __________________ 2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - *150K!* - All work by me...

10-03-2016, 09:57 AM	#8
Norm Peterson corner barstool sitter Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012 Location: Eastern Time Zone Posts: 6,990	Cars that are limited to 155 are limited to that speed by the speed rating of the tires installed on them as OE. Without the limiter (and with speed-appropriate tires) the cars could run anywhere from a mph or two faster than that up to over 200 mph. IIRC, stock SS's would be capable of low to maybe mid 170's in the absence of any speed limiting. 180+ is ZL1 and Z/28 territory, again stock. Norm __________________ '08 GT coupe 5M (the occasional track toy) '19 WRX 6M (the family sedan . . . seriously)

10-03-2016, 08:10 AM	#4
Ducatiman Drives: 2015 2SS/1LE Join Date: Nov 2015 Location: Salt Lake City Posts: 12	Does anyone know if GM records and stores each and every rev limit hit? Some manufacturers do and make the data available to a potential purchaser.

10-03-2016, 08:33 AM	#7
race24x Drives: 80 Z28 - 93 Z28 - 14 Camaro SS-RS Join Date: Sep 2016 Location: Fayette Maine Posts: 387	Are all cars limited to 155? I read on the internet somewhere top speed for these cars was 184?

10-03-2016, 10:15 AM	#9
WannaBgeneral Drives: 2014 Camaro 2ss/RS premium sound Join Date: Jan 2014 Location: Las Vegas Posts: 39 View My Garage	Lies to the Cops That's mayB a Euro(non imperial) readout on the tach. (believe me)...

10-03-2016, 10:52 AM	#11
CamaroFred Drives: Miss Con Ception Join Date: Aug 2016 Location: Chicagoland Posts: 2,998	The rev limiter is set at 6600 RPM on the LS3 but you may go a hundred or two over from momentum if you don't lift or disengage the clutch. The L99 is 6200.

10-03-2016, 12:15 PM	#13
Jasper Drives: 2011 Summit White Camaro SS (LS3) Join Date: Sep 2014 Location: Welland, Ontario Canada Posts: 542	I hit the limiter all the time. It always feels like the car wants to keep pulling which is why I miss the shift. I wish it could go higher but obviously it's there for a reason. __________________ Mods: Vararam intake, Solo axleback, VTC, Overkill in-car Tune, 3.91's.

10-03-2016, 12:18 PM	#14
Norm Peterson corner barstool sitter Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012 Location: Eastern Time Zone Posts: 6,990	There at least used to be a "gentleman's agreement" among many or most of the European mfrs to limit at least sedans to 155 mph (conveniently close to 250 kph). Perhaps that was the inspiration? My bad on the "W" tire speed spec - W-rated tires are good for a bit more than 155 mph (168 per Tire Rack's tech information center). Norm __________________ '08 GT coupe 5M (the occasional track toy) '19 WRX 6M (the family sedan . . . seriously)