Power Adders Technical discussions for forced induction with nitrous and blowers.

Nitrous On 4.6L

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  #1  
Old 08-28-2007, 06:47 AM
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Default Nitrous On 4.6L

Im in the market for a nitrous system and i really dont know a whole lot about it. Please help. I need to know the best manufacturer, what else i need besides what comes in the system (purge kit, bottle opener, window switch, gauges, tune....), how much of a shot to use, and, of course, is it really worth it. My car is a 2000 4.6 GT Mustang with 55,000 miles. I have bbk equal lenth headers, bbk high flow cats, SLP loud mouth I, Richmond 3.73's, and a diablo sports tuner. I willing to spend around $1,000 for the whole set up. Thanks.
 
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Old 08-28-2007, 10:43 AM
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Im a big fan off the venom kit just becouse it want let you lean out the motor when spraying. Zex has a kit out there with similiar capabilities. As far as tuning is concerned the basic rule of thumb to sraying is for every 50 shot you need to retard your timing by 1 degrees. you're Diablo tunner should take care of that. Also your going to need to run a step colder plug to handle the hotter temps the gas is going to create.
 
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Old 08-28-2007, 12:35 PM
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zex is very user friendly and usually a great kit. Keep the shots to 100hp or less and follow blackstang's advice for plugs. You really should get a custom dyno tune for the nitrous. It's safer that way.

All the bottle heater, purge, blah blah blah is candy. It's really nice to have but it's not totally necessary. I would use a window switch though... probably 3250 and 5600 pills for it. The bigger nitrous heads may chime in (if they don't boycott you for not using the search function) with more refined advice but that's the gist of it.
 
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Old 08-28-2007, 12:39 PM
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forums are meant for advise, not for sarcasm. yes, i could and have researched these topics many times, but whats great research with out other peoples opinions???
 
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Old 08-28-2007, 12:52 PM
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Look close at my post and you'll see the advice is there. If I wanted to be sarcastic then I would have written this:

10000 other people asked that question last week.. and were answered. So it stands to reason that the very answers you seek are already there and the search function is how you find those answers. Once you have a concrete question that you couldn't find the answer to, then come in and start the 10001th "I can't search or make a phone call to (insert nitrous company here) so please pick my nitrous kit for me" thread.

You clearly don't understand much of the fundamentals required to make the use/don't use decision so I'd start with www.howstuffworks.org and move on from there.

My point is, you're asking repetitive questions to people who are statistically certain to give you incomplete or incorrect advice. If you pick up the phone after Google-ing "Nitrous performance" you get no less than the 3 top manufacturers as links on the first page full. Call Holley/NOS, Nitrous Express, Nitrous Works, Zex or any of them and ask them that question. We're better at helping you dissolve the corporate sales BS they'll give you and telling you what's BS and what's true.
 
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Old 08-28-2007, 08:20 PM
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nice r3dn3ck
 
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Old 08-28-2007, 08:23 PM
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MY first advice like always is to read up on it alot before you buy or do anything. Nitrous is awesome and when your not a jackass will be fine on your car for a long time. MY car has been on a 125wet shot for about 3 years and its untuned. i have however checked my a/f ratio out to make sure i wasn't running it deadly lean.

For kits it doesn't matter really they for the most part are all good. I however think venom is garbage and adds tons of pointless wiring for dry system.

I would recommend a wet nitrous kit meaning it adds both nitrous and fuel were as dry kits add only nitrous and the car adds the extra fuel threw the injectors.

But back to kits company's like Compucar,NOS,ZEX,NX,Ny-TREX,nitrous works are all good brands and im sure i missed a few that are good too. Pick one that has the features you like at the price you like. Dont be fooled into thinking there is one better kit then another there isn't.

As for not killing your motor this goes along with the reading. You need at the minimum a set of one heat rang colder spark plugs like NGK TR6's or autolite 103s i have used both and both are good and cheap (autolites are really cheap). If its a manual get a window switch MSD has nice ones and there cheap like 90bucks cheap. It makes it so the nitrous only sprays at preset rpms so you cant miss a shift and hit the rev limiter. If your car is auto dont bother you dont need it as you spray threw the shifts.

You dont need a purge unlike many say for some reason. all it does is make for a more consistent track car thats it. after you spray it the first time the line is pretty clear for awhile. I would highly recommend a bottle heater though. its not needed, but makes for getting the full 100% out of each shot.

If you wanna do over a 100shot get a fuel pump upgrade like the SVT focus pump which is cheap and a direct drop in replacement. the max i would do on a stock 2v bottom end is a 150shot. Any more and the tourqe you make is just so rediculous for stock rods to handle. However some have and do rock 175's and a few do 200's. There heros in my book. If your scared start with a 75shot and use it for awhile once your used to nitrous step up to a 100shot and use that. Thats a good safe shot on any v8 pretty much.

Also i know im rambaling but im trying to type as i think of ****.

So a tune, now i would recommend a tune, but i dont have one. If you can get a friends wideband etc... and want to just check the a/f ratio making sure its below 12:1 then go for it; if you know what your looking at. otherwise a tune is a good idea. But to be honest nitrous kits are jetted rich from the company's for a reason so you don't fry a piston, but i know people will cry for me saying that. Plus some extra power is nice along with knowing the motor is running nice and not lean.

Thats all i got for now enjoy. And dont be a bitch when it comes to nitrous because when its time to spray you must know your way.
 
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Old 08-28-2007, 08:25 PM
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If you want to spend less then a $1000, then stick with Venom or Zex, keep the shot to less then 100, get a bottle warmer, and the right plugs.
 
  #9  
Old 08-28-2007, 08:28 PM
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Says the guy who tossed a motor using the venom system....

just ******* with you, but seriously.
 
  #10  
Old 08-29-2007, 07:29 PM
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Originally Posted by spike_africa
Says the guy who tossed a motor using the venom system....

just ******* with you, but seriously.
And you won't find any truely fast 4.6's using the Venom kit either
 
  #11  
Old 08-30-2007, 08:32 PM
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All of you can go **** yourselves.......why do you think I now have a blower LOL
 
  #12  
Old 08-30-2007, 08:33 PM
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Hey JayC, you have not posted in a while....welcome back.
 
  #13  
Old 08-31-2007, 07:12 AM
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LOL come on it was just to easy waterDR.

But i couldn't agree more with Jayc look around at cars that are actully fast no one is using the venom kit for a reason.
 
  #14  
Old 08-31-2007, 09:16 AM
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Those Venom kits are for the conservative. Power is a function of nitrous and fuel, how you apply both is the debate.
 
  #15  
Old 09-01-2007, 06:14 AM
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Originally Posted by WaterDR
Hey JayC, you have not posted in a while....welcome back.

Thanks for caring
 
  #17  
Old 09-01-2007, 08:20 AM
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NX plate kit is the best for a 2valve period.....
 
  #18  
Old 09-01-2007, 08:29 AM
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Originally Posted by jeredan2003
NX plate kit is the best for a 2valve period.....

I'm not so convinced of that. Got any track numbers to back that up....... I don't think so See my sig for mine
 
  #19  
Old 09-01-2007, 10:01 AM
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pick a kit that gets you dhik hard and buy it. It doesn't matter 2 squirts of cold **** which one you get till you learn how to drive it.
 
  #20  
Old 10-09-2007, 08:53 PM
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I acutally own the Venom VCN 1000 kit for m 99 gt and it works fine and it has lights to tell you weather your car is running leanor rich, and while your spraying it and it is running too lean it will kill off the spray
 
  #21  
Old 10-10-2007, 06:09 AM
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Have you ever had it on a dyno to see the air/fuel ratio? because it reads off the stock 02 sensors right which are a narrow band sensor so i dont know how much i trust it for that.
 
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