Hypertech Programmer
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Instructor
Joined: May 2005
Posts: 124
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From: Baton Rouge LA
Hypertech Programmer
Newbie here and this is my first post. I have a '00 Vette and two of my mods are the 3.42 differential assembly and 172 thermostat. I have the hypertech programmer for the '00 vette but in it's options it doesn't list either of these. It has the 2.73 and 3.15 as choices for the differential and 160 and 180 I believe for the thermostat. What do yall think I should do about that when using the programmer? Should I leave the differential stock and put the 160 thermostat or does it even matter?
MODS: B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
MODS: B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
Last edited by stromadd; May 10, 2005 at 06:42 PM. Reason: give members a better idea of mods
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by stromadd
Newbie here and this is my first post. I have a '00 Vette and two of my mods are the 3.42 differential assembly and 172 thermostat. I have the hypertech programmer for the '00 vette but in it's options it doesn't list either of these. It has the 2.73 and 3.15 as choices for the differential and 160 and 180 I believe for the thermostat. What do yall think I should do about that when using the programmer? Should I leave the differential stock and put the 160 thermostat or does it even matter?
Last edited by shurite44; May 10, 2005 at 09:27 PM. Reason: changed 342 to 315, brain faurt
Drifting
Joined: Jul 2002
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From: Spring Tx
My 98 programmer has 3.42 as a choice,set the programmer for 160 , actually turns one on at 170 the second at 190..You can adjust by changing wheel height but it will throw off the speedometer a like amount.Reduce height by 8% will increase speedometer by 8%. Ive never tried changing wheel height so I dont know the limits of the parameters.
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
the Hypertech fails at gear scaling beyond the factory available A4 ratios. Oh yes... it has the "selection" of the 3.42; but it only works on F-Bodies.
The HPIII fails to alter the TCC Slip Table and the P1870 error code will eventually be set.
Don't believe me??? Call and ask the Hypertech people yourself. Make certain you ask for their C5 Corvette specialist.
The HPIII fails to alter the TCC Slip Table and the P1870 error code will eventually be set.
Don't believe me??? Call and ask the Hypertech people yourself. Make certain you ask for their C5 Corvette specialist.
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by Mike Mercury
the Hypertech fails at gear scaling beyond the factory available A4 ratios. Oh yes... it has the "selection" of the 3.42; but it only works on F-Bodies.
The HPIII fails to alter the TCC Slip Table and the P1870 error code will eventually be set.
Don't believe me??? Call and ask the Hypertech people yourself. Make certain you ask for their C5 Corvette specialist.
The HPIII fails to alter the TCC Slip Table and the P1870 error code will eventually be set.
Don't believe me??? Call and ask the Hypertech people yourself. Make certain you ask for their C5 Corvette specialist.
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Instructor
Joined: May 2005
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From: Baton Rouge LA
That's good to know. It seems like I've heard somewhere that corvette will correct themselves on the speed limit thing...don't know how true that is. I hate that my programmer won't help me with the 3.42, so what do yall think is my best option with that differential assembly? I hear everyone talking about dyno tuning and all that but I'm new to that aspect. I just want to make sure my car is getting all the power possible with the mods I have. I beginning to think my hypertech programmer might not be the way to go.
MODS: B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
MODS: B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
Last edited by stromadd; May 10, 2005 at 09:34 PM. Reason: to list my mods
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
It seems like I've heard somewhere that corvette will correct themselves on the speed limit thing...don't know how true that is.
MPH is detected on the output spline shaft of the rear diff. The only thing that affects the speedo on a C5 is a change in overall rear tire heigth.
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Thread Starter
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Joined: May 2005
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From: Baton Rouge LA
Sounds like you know your stuff Mike...that's what I thought I heard about the speedometer though and that makes me feel better. I've had the 3.42 for about a year and a half now but in the last few months I've tried playing around with the hypertech programmer and just wasn't sure how that affected it. I don't think I have any error codes but as with another post of mine, the abs and traction control warning lights have come on. Do you think it's related?
B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by stromadd
Sounds like you know your stuff Mike...that's what I thought I heard about the speedometer though and that makes me feel better. I've had the 3.42 for about a year and a half now but in the last few months I've tried playing around with the hypertech programmer and just wasn't sure how that affected it. I don't think I have any error codes but as with another post of mine, the abs and traction control warning lights have come on. Do you think it's related?
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
if he has been driving around for a year and a half don't you think someone has tuned the PCM for gear scaling for the 342
I still believe my situation was unique. And now maybe someone else has "jonined the unique club".
So many things have to happen to get the slip code error. First off, the slip is only tested for in "4" - and only starting at a certain speed, and it has to happen for "xx" duration.
Since my 2002 had the 3.15 from the factory, the 8.6 percent change of the 3.42 upgrade may have been a borderline error condition that needed a certain type of driving to set the code (which finally hapopened one day. Remember, my C5 is not a daily driver).
And there is always the other possibility that the car had been reprog'd when the 3.42 was installed.
stromadd ;
did you buy the car that way, or did you do the 3.42 mod after you owned the C5 ?
And if so, did you do the swap yourself, or did you pay someone to do it for you? And lastly; did they do a reprog with the 3.42 upgrade ?
.
Last edited by Mike Mercury; May 10, 2005 at 10:08 PM.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Thread Starter
Instructor
Joined: May 2005
Posts: 124
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From: Baton Rouge LA
Well I do like to consider myself special :-) This vette already had the 3.42 installed when I took over. I honestly don't know if the person who installed it also reprogrammed. I wasn't spinning the tires or braking when the abs and traction control lights came on..it was under normal driving. I don't know if there's any connection the the 3.42 but it just crossed my mind as we were talking about it.
B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
B & B Tri-Flow Exhaust and Headers, RM Twin-Flo Air Intake System, z06 Air Flow Duct and SS Coupler, Throttle Body Bypass Kit, 172 Thermostat, MAT Sensor, Cold Air Screens, GM 1030 CFM Throttle Body, Max Flow Mass Air Sensor, Hypertech Programmer, Pro Torque Convertor, 3.42 Differential Assembly, z06 Intake Manifold, Hotchkis Swaybar, Bilstein Shocks, z06 Calipers, Hawk Brake Pads, Bosch Spark Plugs, Magnecor Wires, Random Technologies X-Pipe and Catalytic Convertors
