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Removed F45 shocks Max Speed 159

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Old Sep 14, 2009 | 12:27 PM
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Default Removed F45 shocks Max Speed 159

Swapped out my F45s for some C6Zs. I was expecting to get a max speed 80 MPH until I get the RPO code deleted from the BCM. Instead I get a max speed 159 message on the DIC instead. Why?

Also, how many miles until these shocks settle down? The car is sitting pretty high right now. Was going to lower it at the same time but those front bolts look like they will break before they turn.

Last edited by nickolbag; Sep 14, 2009 at 12:34 PM.
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Old Sep 14, 2009 | 02:32 PM
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Not sure. I'm still waiting for mine to settle. Car looks like a 4x4 right now and it was lowered so I don't have much more room on my bolts.
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Old Sep 14, 2009 | 08:29 PM
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Anybody know why its 159 instead of 80?
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Old Sep 14, 2009 | 09:05 PM
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I was thinking you might be in metric mode but 159 kph = 98.8 mph so, no.

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Old Sep 14, 2009 | 09:08 PM
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I would never drive a car with a max speed of barely 159.
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Old Sep 14, 2009 | 09:15 PM
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Originally Posted by NeutronVette
I would never drive a car with a max speed of barely 159.
Yea I know. Its embarrassing when people see the message and laugh at how slow my car is. I'm not worried since I'll have the RPO code deleted when i find somebody with a Tech II that can do it. I was just wondering why my MPH was different than what it should have been. I just like to ask why to everything.
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Old Sep 14, 2009 | 11:36 PM
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Originally Posted by nickolbag
Yea I know. Its embarrassing when people see the message and laugh at how slow my car is. I'm not worried since I'll have the RPO code deleted when i find somebody with a Tech II that can do it. I was just wondering why my MPH was different than what it should have been. I just like to ask why to everything.
Just giving you crap, dude. Hope you get your car fixed up like new.
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Old Sep 15, 2009 | 12:48 AM
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I used the resister mod when I took the f45's out for the Z06's and have had no issue, allthough I have only had it up to 125mph after the install.
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Old Sep 15, 2009 | 03:13 PM
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Originally Posted by c5blkvetteguy
I used the resister mod when I took the f45's out for the Z06's and have had no issue, allthough I have only had it up to 125mph after the install.
Resister mod? As an alternative to deleting the F45 RPO code from the BCM? I may have to look into that. Called at least 5 dealers by me and nobody can do it. In fact several service managers "know" it can not be done.
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Old Sep 15, 2009 | 03:24 PM
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Originally Posted by nickolbag
Anybody know why its 159 instead of 80?
Thats crazy, never seen that before. at least you can drive past 80 until you get to a Tech II. also, takes about 50-100miles before settling back down to normal height.
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Old Sep 15, 2009 | 05:08 PM
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Originally Posted by Ikester
Thats crazy, never seen that before. at least you can drive past 80 until you get to a Tech II. also, takes about 50-100miles before settling back down to normal height.
Yea I was pretty excited to see it. At least I can hit the track before I get it tuned out. See what the new motor/suspension will do.
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Old Sep 15, 2009 | 08:54 PM
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Originally Posted by nickolbag
Swapped out my F45s for some C6Zs. I was expecting to get a max speed 80 MPH until I get the RPO code deleted from the BCM. Instead I get a max speed 159 message on the DIC instead. Why?

Also, how many miles until these shocks settle down? The car is sitting pretty high right now. Was going to lower it at the same time but those front bolts look like they will break before they turn.


Can this value be changed in the tables or just deleted? Any custom tuning done and your buddy is playing tricks
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Old Sep 15, 2009 | 11:32 PM
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Originally Posted by nickolbag
Yea I was pretty excited to see it. At least I can hit the track before I get it tuned out. See what the new motor/suspension will do.
I think i remember a member named Striper from sussex NJ that has a tech II. maybe he can help out

[EDIT]See post 11 here:

http://forums.corvetteforum.com/c5-t...-from-bcm.html

Last edited by Ikester; Sep 15, 2009 at 11:37 PM.
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Old Sep 16, 2009 | 08:08 AM
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Originally Posted by Ikester
I think i remember a member named Striper from sussex NJ that has a tech II. maybe he can help out

[EDIT]See post 11 here:

http://forums.corvetteforum.com/c5-t...-from-bcm.html
HUGE thanks for that link.
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Old Sep 16, 2009 | 10:02 AM
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takes about 5mins w/ the techII

I used a how to prolly like the one Ike posted, didn't ck the link

Bruce mentioned he had some of the Acura techs mess w/ your OBDII system, said they installed the SH rpo from a TL
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