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75 or 100?

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Old Oct 18, 2006 | 06:39 PM
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Default 75 or 100?

I have a stock car other then the popcharge intake. I want to put nitrus on and i was thinking going with a 75 shot to be safe. Going 75 shot instaed of 100 is that gonna be much different as far as safety for my engine?
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Old Oct 19, 2006 | 06:11 AM
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I have nitrous and I've done a lot of research on this topic. I also spoke directly with Nitrous Xpress. As a dealer, NX reccommends nothing more than a 75 shot with one steo colder plugs. However, after reading numerous forum posts of Z's with nitrous, it seems that a 100 shot(installed correctly and tested properly) on stock internals safe for our car. Members have posted after 1-2 years of nitrous and no problems. HOWEVER, there are exceptions to everything.....so spray wisely!!!
I love my nitrous....I've been on a 75 shot for about 2+ weeks now and I;m going to up it to 100 this weekend and feel the difference. I ran a buddy of mine that used to pull hard on me by 3-4 cars, now I walk him.
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Old Oct 19, 2006 | 06:36 AM
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Gonna have to play with the fuel jets to get the mixture right on anything above a 75 shot. Audible Mayhem was running 150 shot on stock internals (he did have a UTEC though). I'll be running 125 shot with a UTEC - stock block.
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Old Oct 19, 2006 | 07:43 AM
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You wont even feel a 75 shot on this car man, thats weaksauce. 100 shot minimum, tune the A/F, retard timing to be safe or run 100 octane at least to help you with stock timing if your running that.
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Old Oct 20, 2006 | 06:23 PM
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Al is right. the 75 shot feels okay......then you step up to a 100 and you are like woo hoo!!!! it doesn't make sense, but that is the way it is.
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Old Oct 20, 2006 | 06:32 PM
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I have never ridden in a car with nitrous, does 25 more whp make that big of a difference? May be a stupid question, but curious none the less.
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Old Oct 20, 2006 | 06:46 PM
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you wouldn't think so, but it does.

I started with a 35hp jet just to test the system......and I couldn't feel a thing. totally serious!!!

then, I rejetted for a 50 shot, and I was like "this sucks!. I must have ****ed soemthign up." I took things apart and check the jets to make sure there wasn't a restriction. No restrictions....fuel and nitrous flowed perfectly.

I upped the jets to a 75 shot....now we are getting somewhere, but this is nowhere like I remember my other nitrous experiences.

Finally, up it to the 100 shot (by NX standards - more like a 125 according to NOS). DAMN!!!!!!! I punched it from 2000 in 2nd gear and smoked the hides all the way to redline!!!!! PERFECT!!!!
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Old Oct 20, 2006 | 06:51 PM
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Cool, I can understand that. I can remember going from a supercharged v8 4runner awd to the na Z, and thinking the Z is pretty quick, then I put the TN kit on there and man it felt like a friggin rocket, then we put the spacer, injectors, fuel return, and exhaust then had it tuned, dear God felt like HE77 on wheels. Now I am going twins with a wicked exhaust, can't wait!!!!

Not trying to steal/hijack the nos thread, but getting kind of excited about my new set up.
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Old Oct 20, 2006 | 08:04 PM
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this post is terrible...I bet by next weekend I'll have the 75 shot jets removed and the 100 installed - it just sounds like too much fun to miss out on!
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Old Oct 20, 2006 | 10:11 PM
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What upgrades should i do to my engine before i can run 100 shot?
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Old Oct 20, 2006 | 10:30 PM
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SPRAY= GAY...STAY n/a....you'll just end up not like the vq...
P.S. ANYONE ELSE WHO SPRAYS IS WACK
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Old Oct 21, 2006 | 06:18 AM
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Originally Posted by lilchief
What upgrades should i do to my engine before i can run 100 shot?

I changed my plugs out to NGK iridiums (1 step colder).....that's it!

I ran an NX setup. 52 nitrous jet / 31 fuel jet. It is a little fatter than neccesary, but a bit safer too. I was trapping at a hair under 111 mph in a 6mt G35 Sedan on the spray.
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Old Oct 22, 2006 | 01:19 PM
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DOC, where in SA did you get your nitrous kit installed? How much did it run you? I myself have never really thought of going with nitrous but man for the price its looking better and better to me..
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Old Oct 22, 2006 | 03:26 PM
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I go to Top Notch Performance on nacodoches Rd. Mike and Colt run the show there....tell them I sent you and you will get 10% or so off. The price varies depending on what kind of set up you're looking at. Give or take it will run about $1,000 for a 100 HP gain, you can't beat it!!!
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Old Oct 22, 2006 | 03:33 PM
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Originally Posted by doc10374
$1,000 for a 100 HP gain, you can't beat it!!!
search around. buy the accessories you really need, and self install it. It is very easy.

necessary accs are: bottle heater, cockpit pressure gauge, and maybe a remote opener if you like to use it a the drop of a hat!
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Old Oct 22, 2006 | 04:22 PM
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with a fuel pressure gauge, what exactly are you looking for? what is a normal range or does that depend on the amount of nitrous being sprayed...
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Old Oct 22, 2006 | 05:48 PM
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our cars should be around 52 psi. It is dropping while spraying, you need a bigger pump. the stock pump should be fine on a 100 shot though.

Unfortunatley, I didn't have a fuel pressure gauge when I had my nitrous system installed.
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Old Oct 23, 2006 | 07:11 AM
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I will +1 on the bottle heater. Here in San Antonio when the temp are now in the 50's & 60's in the morning my pressure is way to low to spray. I would definately get the bottle heater. I have 2 5lb bottles, I have not seen warmers for them yet, although I know their available.
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Old Oct 23, 2006 | 08:31 AM
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Originally Posted by JdMfREaK
SPRAY= GAY...STAY n/a....you'll just end up not like the vq...
P.S. ANYONE ELSE WHO SPRAYS IS WACK

I guess I'm wack....have fun looking at my tail lights.
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Old Oct 23, 2006 | 09:27 AM
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The only way I'll be looking at your tail lights is by giving you a 2 car lead at the start.......lol....just kidding.....not starting trouble.........
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