Forum: Gen II

For tuning parameters on 1996-2002 Vipers

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Spark Plug Experiment

We all know that for boosted GEN II cars, the best plug is the RC10ECC which is no longer in production by Champion (at over $10.00 each). There are...

Started by EllowViper‎, 12-15-2010 03:48 PM
Replies: 9
Views: 2,010
10-01-2015, 12:19 PM Go to last post

1996 Gen2 BARO source

Is BARO obtained from WOT MAP values?

Started by Tom and Vipers‎, 08-26-2015 09:12 PM
Replies: 2
Views: 385
08-30-2015, 07:08 PM Go to last post

AEM tune - air temp - ignition & fuel trim

Hi all. I'm using a AEM v1 stand alone on my 97 GTS N/A. What do you think about the following graph ? Your data are similar or not at all ? ...

Started by Cyruss‎, 08-12-2015 09:07 AM
Replies: 0
Views: 355
08-12-2015, 09:07 AM Go to last post

SCT Questions

I am very interested in the sct and have some questions if anyone can answer. I have a vec 3 with Roe s/c 8.5 lbs- Belanger headers, no cats, roe ...

Started by SYNFULL‎, 04-22-2010 07:22 PM
2 Pages
1 2
Replies: 33
Views: 6,159
11-23-2014, 05:32 PM Go to last post

What programs Datalog for a Gen 2 viper? ---

I am not interested in tuning right now ... but I would like to datalog the performance of my 01' Viper. I see the VEC and SCT Pro-Racer...

Started by alwayscode390‎, 12-14-2013 12:12 AM
Replies: 6
Views: 1,539
12-14-2013, 07:01 PM Go to last post

Hi Flow Cats/tune

I'm going to order some Hi Flow Cats this weekend and leaning towards Seans. I have 6.5 Roe, Vec3, 1.7 HS's, 1 5/8" B & B 's w/3" catless out the...

Started by uvbnbit‎, 11-25-2012 09:03 AM
Replies: 6
Views: 2,090
03-11-2013, 10:51 AM Go to last post

SCT 9550 Base Tune Problems at Hot Rod Shop ... not correct "dongle"? ---

I was at the shop getting a dyno pull this morning. I showed him the SCT 9550 I purchased. These come with NO tune on them. They are good for a...

Started by alwayscode390‎, 07-09-2012 04:22 PM
Replies: 8
Views: 2,664
07-12-2012, 11:23 PM Go to last post

Tuning Videos for Roe Vec from Damn Yankee

I was able to get ahold of two videos that detail how to use your VEC program for tuning. Damn Yankee had produced the videos. Unfortunately, he is...

Started by Fursty‎, 03-18-2012 08:05 PM
2 Pages
1 2
Replies: 42
Views: 3,186
04-06-2012, 06:33 AM Go to last post

First Vec 3 Log... Is the Internal Map Sensor Correct accurate?

Just did my first log last night. I do not have a boost gauge or a wideband in the car as of yet. Running a Roe and just got the car running and...

Started by eabrillon1978‎, 01-09-2012 08:33 PM
Replies: 10
Views: 1,340
01-13-2012, 06:21 AM Go to last post

Vec 2 or 3 for sale anyone?

Heya does anyone have a Vec 2 or 3 for sale? Im pissed because I sold one awhile back and now I need one. If anyone knows of someone selling one...

Started by vpower01‎, 12-14-2011 01:10 PM
Replies: 6
Views: 657
12-29-2011, 09:15 AM Go to last post

Flat spot in acceleration

When I accelerate I have a slight hesitation/flat spot around 2,000 rpm. Sometimes not even noticeable, sometimes very abrupt. I don't believe the...

Started by GTSnake‎, 08-15-2008 04:40 PM
3 Pages
1 2 3
Replies: 67
Views: 6,043
11-12-2011, 08:31 AM Go to last post

VEC-II Abnomalies

Anyone experience their VEC acting up when it gets hot (the VEC that is)? I seem to be having a situation where my VEC craps-out once it gets hot...

Started by EllowViper‎, 03-06-2011 05:47 PM
Replies: 10
Views: 886
04-06-2011, 11:43 PM Go to last post

VEC2 PWM Question

I'm running a VEC2 to control the additional injectors on my DLM S/C setup. When cranking the motor, the PWM gets power and thus the additional...

Started by Jim Wilson‎, 05-08-2007 07:36 PM
Replies: 9
Views: 1,660
11-08-2010, 08:17 PM Go to last post

Can you guys help me out with my sct tuner??

i just bought one going to pick it up tommorow for my 02 viper gts my car only has a few small mods done , i know it has a cd in the box so after i...

Started by happy‎, 06-28-2010 04:52 PM
Replies: 3
Views: 1,036
10-30-2010, 09:35 AM Go to last post

SCT Tuning - O2 heater malfunction

With the outstanding pricing that Dan at Viper Specialty Specialty Performance gave on the SCT tuning package recently, I am sure there are a number...

Started by KenH‎, 01-17-2010 08:03 PM
Replies: 3
Views: 1,265
10-19-2010, 12:19 PM Go to last post

Cutting Fuel on Deceleration

I am getting an error 8 on my LC-1. I have read where others have cut their fuel on decel (vec 3), and would appreciate it if anyone can guide me on...

Started by SYNFULL‎, 03-31-2010 09:29 PM
Replies: 9
Views: 1,304
04-22-2010, 07:21 PM Go to last post

SCT Tuning - Misfire code

The newer PCMs are subject to getting a misfire code when running Roe superchargers (and perhaps other forced induction/nitrous setups) due to reving...

Started by KenH‎, 01-17-2010 08:16 PM
Replies: 1
Views: 933
01-25-2010, 02:36 PM Go to last post

reverse engineering stock timing

Has anyone reverse engineered the timing maps in a GTS? I know what they are approximately at WOT. But how about compared to load? I'm trying to...

Started by ceokris‎, 08-24-2009 12:50 PM
Replies: 2
Views: 1,526
12-21-2009, 11:05 PM Go to last post

#3 - Detonation, Hypereutectic Pistons, Timing....

There are essentially two classes of stock Gen2 Vipers out there to my mind, those with “hypereutectic” pistons and those without them. In 2000,...

Started by DAMN YANKEE‎, 05-12-2007 10:01 AM
Replies: 8
Views: 4,894
10-09-2009, 02:34 PM Go to last post

Stock computer timing advance

Is there anyway to trick the stock computer into adding timing? Maybe like fooling the IAT into thinking it is -20 degrees out or something. I...

Started by 2001 GTS‎, 06-15-2009 03:30 PM
Replies: 2
Views: 1,137
06-15-2009, 04:06 PM Go to last post

Tuning into audible knock, timing and more!

Background: I am tuning the fuel/ignition timing on my Roe GTS. The previous owner was at higher altitude and only had 91 octane available. The...

Started by Red Shift‎, 05-06-2009 11:43 PM
Replies: 12
Views: 3,230
05-10-2009, 04:02 PM Go to last post

How to share a VEC tune?

I wish this idea could find some traction. I have a simple nitrous tune I'd like to upload/share. Is there a central file sharing location?

Started by PowerKraus‎, 05-31-2008 12:38 PM
Replies: 5
Views: 1,390
05-09-2009, 08:37 AM Go to last post

Timing Advance on N/A Tune

For those running a N/A setup, what are you running for timing advance?

Started by TexasPettey‎, 11-27-2008 11:08 PM
Replies: 3
Views: 1,776
04-04-2009, 03:20 PM Go to last post

VEC timing advance with a 10lb pulley

I anyone running any timing advance over stock with a 10 lb pulley on 93 octane? How about with race fuel? thanks in advance!

Started by ViperBing‎, 03-25-2009 10:52 AM
Replies: 8
Views: 1,775
03-31-2009, 08:01 AM Go to last post

Running rich at hwy speeds

'98 6.5 Roe, B & B's, headers, not cats, 3.55's, VEC 3. I can't seem to lean out the AFR. At hwy speeds (60-85) in the 1500-2250 the LC-1 is...

Started by uvbnbit‎, 03-24-2009 07:24 AM
Replies: 12
Views: 1,399
03-24-2009, 04:12 PM Go to last post

Wideband help

I am working on installing an NGK Powerdex wideband. Got everything hooked up, and I am trying to calibrate the unit. Getting 8888 across the...

Started by martyb‎, 01-31-2009 02:45 PM
Replies: 6
Views: 1,166
02-02-2009, 07:02 PM Go to last post

Need Tuning Help

I have been trying to lean out my GTs with the vec 2 but my changes don't seem to have made much difference. My AFR still is hitting around 10 (I...

Started by SYNFULL‎, 10-06-2008 08:14 PM
Replies: 18
Views: 2,531
10-27-2008, 07:13 PM Go to last post

Vec Error "input past end of file"

Anyone know what this error message is when trying to view logs? I have gotten it a few times now after trying to open a log file. Thanks

Started by SYNFULL‎, 07-26-2008 08:51 PM
Replies: 3
Views: 1,512
08-17-2008, 09:18 PM Go to last post

AEM plug&play

Hi! Does anyone have any experiences of the AEM PnP AEM - Plug-N-Play Engine Management System with Wideband UEGO ? I would like to get some...

Started by trydh‎, 08-05-2008 04:40 AM
Replies: 7
Views: 1,517
08-12-2008, 06:27 PM Go to last post

Can Anyone Check This A/F Log

Can any of you guys take a look at my first log file since I installed my LC-1 with my air fuel? I started out in 2nd gear around 3000 rpm. I...

Started by SYNFULL‎, 08-04-2008 09:38 PM
Replies: 11
Views: 1,667
08-08-2008, 09:00 AM Go to last post

Logging A/F with Vec2

I just got finished installing the LC-1 with an XD-16 gauge. Everything seems to be working but I am not sure how to set the vec 2 software for...

Started by SYNFULL‎, 07-23-2008 11:20 PM
Replies: 9
Views: 1,270
07-26-2008, 12:47 AM Go to last post

A/F readout guage

Can a A/F sensor be installed in place of one of the 02 sensors on a 97gts with a guage to provide a A/f readout. I am looking for a quick test of...

Started by SNKBYT‎, 07-10-2008 07:56 AM
Replies: 3
Views: 1,424
07-11-2008, 11:55 AM Go to last post

New VEC timing table

Just a quick update in some revised street gas timing table for my 02 GTS. So far, no problems on pump gas, although I added a little more fuel of...

Started by PowerKraus‎, 06-30-2008 12:12 AM
Replies: 3
Views: 1,312
07-01-2008, 09:41 PM Go to last post

One Good "Pull" Deserves Another....

Wow! What a great new resource for those interested sharing data about how to analyze logging data and to tune with a VEC! As the intent is to...

Started by DAMN YANKEE‎, 05-04-2007 11:26 AM
Replies: 13
Views: 2,354
06-12-2008, 08:53 AM Go to last post

Too late for the Party ?

Hello, I am finally going to get serious about tuning my GTS buggy with its VEC II. I recently updated from true OEM to a free flow exhaust...

Started by PowerKraus‎, 04-14-2008 08:47 PM
Replies: 6
Views: 1,429
06-12-2008, 08:50 AM Go to last post

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