What happens when it tops out?

General topics relative to the Caprice and associated vehicles. For items not fitting into other sub-sections in addition to general chat.
Numbah1
Posts: 75
Joined: Sun Jan 27, 2019 9:45 pm

What happens when it tops out?

Post by Numbah1 »

Hey guys, what happens when you top your cars out?
Last night in Mexico, i got past a 'authorized vehicle' post and rolled into it hard, got 131 and it felt like it cut out, then maintained it. Stayed at 5500ish RPM. 2nd pass, i rolled in easy and it did the same thing, my co pilot said i was 4k, maybe i lifted, but it hit 133ish.
I was hoping to hit 160!
CrashTestDummy
Posts: 2300
Joined: Sat Feb 07, 2015 2:31 pm
Location: Pearland, Texas

Re: What happens when it tops out?

Post by CrashTestDummy »

If it’s anything like a G8, it just revs to redline, or max speed and stops accelerating. It will stay there, running on all cylinders, until you let off, or find more gear.
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2018 Tahoe PPV (her car)
1995 DGGM Impala SS
1985 Firebird - 310 LS1 C Prepared autocross car.
1980 Bluebird Wanderlodge
And some others
Do YOU have my SPID?
Numbah1
Posts: 75
Joined: Sun Jan 27, 2019 9:45 pm

Re: What happens when it tops out?

Post by Numbah1 »

I was disappointed i only reached 133. Had 4 or 500 more RPM till 6k redline lol
User avatar
Fudgehog
Posts: 278
Joined: Sat Aug 19, 2017 2:08 am
Location: Wisconsin

Re: What happens when it tops out?

Post by Fudgehog »

If it was ordered with the limiter on it, it's limited to 130mph. Per the sales brochure.

Stock GM tune file shows top speed as 158mph on a car without the speed limiter.

That's what my 2013 was when I first opened it in HPtuners.

Unsure of redline limits. Just know the top speed limits.
13 Caprice 6.0L, Solo catback exhaust, 3.27 diff, VCM OTR and Volant throttle spacer, MSD coils plugs wires, transmission pan upgrade and widemouth filter. Camaro 18" rims.

Active Duty USAF
Numbah1
Posts: 75
Joined: Sun Jan 27, 2019 9:45 pm

Re: What happens when it tops out?

Post by Numbah1 »

Ahh ok, this car feels a little faster than my last caprice so i didnt know if it was re geared or something. Must have a limiter on it.
Now im curious if the 158mph is b.c on the gear. If it was remapped for a redline if it would be into the 160s?
CrashTestDummy
Posts: 2300
Joined: Sat Feb 07, 2015 2:31 pm
Location: Pearland, Texas

Re: What happens when it tops out?

Post by CrashTestDummy »

The tune was determined by the tires, not the gear. They will go 155+ w/o the limit in the tune. And get there pretty quickly. 8-)
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2018 Tahoe PPV (her car)
1995 DGGM Impala SS
1985 Firebird - 310 LS1 C Prepared autocross car.
1980 Bluebird Wanderlodge
And some others
Do YOU have my SPID?
Navy Lifer
Administration Staff
Posts: 1724
Joined: Tue Mar 19, 2013 6:30 pm
Location: Canton GA

Re: What happens when it tops out?

Post by Navy Lifer »

look at the RPO list (bottom side of spare tire cover)....if the car has "SGT", that is the 130mph speed limiter

Gene, the PPV with 6.0 was good for 154mph in testing, and the 3.6 was good for 149, I recall.

All PPV's got the same tires, so the "unrestricted" speeds were not an issue with the OEM RS-A's.

It would not surprise me that the max speed with OEM specs is achieved in 5th gear rather than 6th.
camrat68
Posts: 216
Joined: Sun Apr 30, 2017 7:47 pm
Location: Appleton, WI

Re: What happens when it tops out?

Post by camrat68 »

Are all of the SPID labels under the spare tire cover? Our 12 has it there but my 13 has it under the trunk lid.

:?:


Jim
Jim Chesnutt
1968 Camaro -my first car.
1995 Black/White 9C1 Caprice
2012 Alto Gray Metallic 9C1 Caprice--The HoDag-Solo axle back exhaust, improved racing OTR CAI intake.
2013 Black/White 9C1--NADACOP-DOD Delete with BTR Stage II cam, Kooks Headers, Solo Hi-flow Cats and Header Back Mach Balanced kit, WestBendDyno tuned.
Navy Lifer
Administration Staff
Posts: 1724
Joined: Tue Mar 19, 2013 6:30 pm
Location: Canton GA

Re: What happens when it tops out?

Post by Navy Lifer »

Jim, I honestly do not know....as a 2011 owner, the label was placed on the spare tire cover. I don't necessarily think that's a good place for it, as the cover is not a permanent part of the car, and is subject to being separated from the car itself, intentionally or not. Even though PPV did not get the trunk lid "carpet", G8 did, SS did, and putting label on trunk lid would be OK for PPV until someone added a trunk lid carpet. Considering the rest of the trunk area and how it's finished out, the options for placement are somewhat limited, if the only option (was) inside the turnk.

Anyway, hope we hear from OP on the max speed matter that the car DOES have the speed-limiter RPO.
Numbah1
Posts: 75
Joined: Sun Jan 27, 2019 9:45 pm

Re: What happens when it tops out?

Post by Numbah1 »

My last comment was sloppy.
I ment i wonder if the 158 would be 6th gear at 6000rpm? Its weird to think another 28mph would be 500rpm.
If its set by gear / rev limit, if the rev limit was increased then it should get into 170s with a 200rpm redline increase
Post Reply