Does anybody know???
- Thread starter trymyz
- Start date
I've ran a dry shot on several mass air metered cars with great success. It's easier to let the computer adjust timing and fuel. I'm just new to the gen 4 viper. I had a gen 3 with a wet shot but I had to do the tuning. Thanks for your input Plum.
Mopar Steve
Enthusiast
The mass air flow sensor is NOT what will help. The O2 sensors will detect a lean condition running a dry shot and richen the fuel mixture appropriately. DO NOT GO MORE THAN A 50 DRY SHOT. and like Plumcrazy said even that is a bad idea.
Well Steve, I know for a fact that you can run up to a 150 dry shot into an airbox of another brand of car safely. In the other car the mass air meter senses the colder more dense charge of air and the computer compensates timing and fuel. I'm just wondering if one of the tuners on the sight could tell me if the gen 4 can do the same since it has mass air meters now. Thanks.
a quick SEARCH found this.
http://forums.viperclub.org/gen-iv/617428-08-tuning.html
http://forums.viperclub.org/2628762-post139.html
there is a link in this thread below you might wanna call along with dan at viper specialty and kevin at underground racing in NC
http://forums.viperclub.org/srt10-s...torque-management-challenges.html#post2553304
http://forums.viperclub.org/gen-iv/617428-08-tuning.html
http://forums.viperclub.org/2628762-post139.html
there is a link in this thread below you might wanna call along with dan at viper specialty and kevin at underground racing in NC
http://forums.viperclub.org/srt10-s...torque-management-challenges.html#post2553304
Last edited:
Mopar Steve
Enthusiast
Ok, you win, go ahead, why not go for a 200 shot? This is something I have no experience with. Except for my '94 Viper and this old Dodge Dart:
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Be sure to post pictures of yours when you are done. By the way, 150 into the airbox is NOT the right way to spray it. The correct way is into the hoses in front of the throttle body.
Don't forget those pictures..........
Steve, I'm not trying to win. No one guy knows everything that is why I'm asking. I've also had experience with nitrous, blowers, etc. Do a little research and you'll see on the ls1 cars can take a dry shot into the airbox. The mass air meters handle the change. Thanks for your input.
Mopar Steve
Enthusiast
Yes, I have done the research, and while I don't know everything, I know this. A dry shot anything more than a 50 shot is a bad idea. Can you get away with it? Yep, for a while, but it will break/burn up parts. The stock injectors can't keep up with that much Nitrous without leaning out. Do people do it anyway? Sure. Is it a good idea? Nope. I wasn't going to bring up my Vette but since you brought up Vettes....., this is my other car on Nitrous: Trust me, don't do dry.
This is me sleeping at the tree! DOH!!!!
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Bottles in the trunk:
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Controls in the dash:
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You asked, and it seems like you don't like the answer. Sorry
PS I have since sold this car. So no hate on the Vette guy!
Good luck with your car.
Mopar Steve
Enthusiast
So many guys think it is easier and the dry shot (Nitrous only) needs only one solenoid, so the kit is cheaper. NOT the place to go cheap and easy.
i assume that and totally agree but was seriously wondering if there was another reason i couldnt think of as to why...
if you have a gen4 viper and cant afford the difference in cost from a dry to wet shot.....YOU should be shot. LOL
if you have a gen4 viper and cant afford the difference in cost from a dry to wet shot.....YOU should be shot. LOL
Jerome Sparich
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The Gen 4 has a MAF sensor?
I do have a wet kit that I had on my gen 3. Believe me it is not the money. Just the hassle of tuning. I do my own work and don't just write checks. It's not that I don't like the answer just wondering if the gen 4 worked the same as the ls1 cars. Just seems like I am getting opinions and not answers. Thanks anyway and have a Merry Christmas.
Jerome Sparich
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You asked,
Then I later asked,
"The Gen 4 has a MAF sensor?"
Maybe you should answer this question first.
BTW, I already know the answer.
Do you mean MAF? MAP sensor? What?
fqberful
Enthusiast
All Vipers are speed density systems. They DO NOT have MAF's ...
Use a balanced wet shot and you'll be fine. Trying to cheap it here will cause a meltdown literally.
--FQB
Use a balanced wet shot and you'll be fine. Trying to cheap it here will cause a meltdown literally.
--FQB
The Gen-4 does indeed have BOTH MAP and Dual MAF. It is a hybrid speed-density and mass-airflow type arrangemnent that utilizes both systems to more closely narrow its target AFR throughout the rev-range in order to burn as clean as possible.
To answer the earlier question: No, a Gen-4 will not respond correctly to nitrous according to just about every single report on the subject I have gotten. While I personally will not deal with Nitrous systems, the consensus [and it makes sense to me] is that the Venom Controller will sense the Torque Shift from the application of nitrous, and will illuminate the MIL and put the car into limp mode. I can understand exactly why the system would do so, so I have no reason to doubt that it is correct.
There is no SCT, nor any other method currently to flash Gen-4 computers. Other than the Mopar computer, its complete replacement [Pectel/Motec] or nothing.
