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    Does anyone sell a front spoiler similar to this Hennessey one??

    As one of the options to our LETHAL 750 package, we offer a great looking front fascia. It incorporates brake cooling ducts, driving lights, and fog lights. If you received the recent issue of Viper Mag it's on the cover. I have also posted a pic in the image gallery under my username : LTHL...
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    Oil change...Mobil or Penzoil?

    We use Amsoil in my Viper as well as all of our customers' Vipers. Stuff works great! Period. While I don't see anything wrong with Mobil One, it's very good (the next best thing) too, from the research, it does appear the Amsoil is every bit as good, if not better. We would choose either...
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    INCREASE top end MPH and IMPROVE ACCELERATION:

    Due to Viper owner demand We have finalized our APEX Motorsports exlcusive VIPER HIGH PERFORMANCE TRANSMISSION upgrade This upgraded transmission will drastically improve top end acceleration and help maximize overall top speed. As an added benefit, 6th gear is now much more usable (doesn't...
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    6th gear top speed

    Due to Viper owner demand We have finalized our APEX exlcusive VIPER HIGH PERFORMANCE TRANSMISSION upgrade This upgraded transmission will drastically improve top end acceleration and overall top speed. As an added benefit, 6th gear is now much more usable (doesn't feel like you dropped...
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    Running rich

    Did you reset your computer when you installed the VEC 1? The computer does go through a learning phase over time, especially after it has been reset (disconnected connectors, removed ground wire, etc..). It is possible that your computer was going through the big learning curve and adapting...
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    INCREASE top end MPH and IMPROVE ACCELERATION:

    Wow!! Great responses and questions. I will try to answer them below. 1) We originally worked on this project to accomplish 2 things: a) Improve the acceleration in 5th and 6th; making 6th gear a usable gear b)improve the top end speed of the Viper (if any of you have shifted the car from 5th to...
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    INCREASE top end MPH and IMPROVE ACCELERATION:

    Well, we do our best to answer e-mails and return calls daily. Even with a staff of 7, it's a challenge with all the inquiries. I don't recall receiving an e-mail inquiry on the LETHAL 750 package from you, but then again, I don't know what your name is and you have no signature in your post...
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    INCREASE top end MPH and IMPROVE ACCELERATION:

    Thanks for your questions. Answers follow: 1) Ratios: .8 (5th), .62 (6th) 2) Gear sets can not be purchased separately. It's not just a simple swap unfoturnately. Custom parts and extensive work needs to be done. 3) 1st-4th gears remain the same which is GREAT! You can either stick with the...
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    6th gear top speed

    We are finishing up the final details on offering a kit to vastly improve the top end acceleration and speed of the Viper. I will post more details later on today, but be rest assured that there will be a BIG boost in performance in the end!!! Stay tuned! -Wayne (LTHL VPR)
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    system ordered

    We've sold about 50 sets of O2 sims to happy Viper owners. They have worked great in eliminating the check engine light due to removed catalytic converters and improving driveability. Installation is a 'SNAP' (literally). We have some in stock. You can reach us at 408.562.1000. Regards, Wayne...
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    HELP!!! Running lean, what to do???

    The most important thing is that there is no pinging/detonation or your car is not running on the edge of it. However, I do feel that your A/F ratio, though consistent, is a little too lean. For safety and margin, you should shoot for the 12.7-13.2 range. All of the Vipers we tune, we try to...
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    I NEED A TUNER!!

    How do you know it's running lean, and what driving conditions is it running lean under (light load, WOT, etc)? Did you measure it using a wideband O2 ($$$) or regular one? How did they measure the A/F ratio? (in the collector, tailpipe, etc..) Is your car pinging/detonating in this lean...
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    What is the part # for Champion sparkplugs...

    Installation isn't difficult. Part #: RC12LYC Local Napa/parts store should carry them Recommend you use some anti-seize on the threads during installation since it uses an aluminum head. Other than that, you should be fine. -Wayne
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    Absolute throttle position

    That reading seems to be the norm for that software. I believe it is a Generic OBDII software, and not all cars start and end with the same TPS voltage (some are 4v, some are 5v, etc).I don't think anything is wrong. This reading is right in line with the last several cars we have seen. It is...
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    TOP SECRET PROJECT REVEALED!! PICS!!

    Trey- Car looks great! So, did you end up going with a rebuilt bottom end after all? (I noticed you made mention about 'after some more miles...'.) Either way, enjoy!!! I'm sure your grin will become permanent. -Wayne
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    Engine keeps dying after cranking

    Have you checked the battery? Is it fully charged? Or perhaps fuel pump voltage?
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    Viper magazine arrived by mail today...

    Dennis, thanks! I guess hard work does pay off!! We are excited to have my car grace the cover, and have an article too. You are correct: the Viper mag covered my car in LETHAL 650 form, another car mag tested it in LETHAL 750 form, and dare I say perhaps one in the future one may debut it in...
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    Problems with Stereo in RT/10

    As Gerald said, tracing 'noise' in a stereo system can be a BIG PAIN....headaches galore. The good news is that it sounds like you have a fairly simple system. At one point, I had some noise in my system (fairly complicated...see Viper mag issue this month/Mellow Yellow) and eliminating it took...
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    New header/ exhaust install problems

    Bruce- Happy to hear our sims are working out for you. We use different hardware than are supplied when we install these headers. Special small size head to get into those 'hard to reach areas'. If you use their hardware you probably had to grind/cut off some of the threads on a couple bolts to...
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    installed headers

    I agree. Most likely it is an exhaust leak. They didn't do anything inside the engine, right? The HMS headers are a slip tube fit. These style do have a tendency to have small leaks, especially when at startup when the pipes and engine are cold. There is probably nothing wrong with them,it is...
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    best battery out for the viper?

    Great question. The Optima battery seems to work on some/few Vipers. Although the battery is definitely better than stock, we have found one that leaves the Optima in the dust. Best of all....it will fit all years/every Viper, offers more power than the Optima, is smaller, lighter, and better...
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    High horsepower with no nitrous (PCM)

    I agree with Jason. The Dastek software, although not perfect, appears to be the best tuning solution for the Vipers at this time. It does a good job of modifying the fuel under load and rpm. I spent all day Monday working with the US distributor for Dastek to enable the software to adjust...
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    Now taking orders for battery kits!!!

    Thanks for your patience. We are now taking orders for the APEX Motorsports High Performance Battery kit!! The kit includes the following: 1) 1 hand crafted, totally sealed battery w/ specially designed components for superior shock and vibration durability as well as excellent...
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    Racing Fuel Question and SC help !!!

    Greg- Check your e-mail. It's been awhile.... -Wayne (LTHL VPR)
  25. L

    More questions - Motor

    MadMaxx- Check the new products area. We recently released our LETHAL 750 package that includes an ultra strong, billet stroker cranshaft. Only a couple places are making stroker cranks. Call me with any questions. -Wayne (LTHL VPR)

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