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All nitrous motor

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99rs

15+ Year Contributor
95
2
Feb 4, 2004
Mount Joy, Pennsylvania
I am looking to make 350whp on an all nitrous motor. I need some ideas on what do but.

Here is what I was thinking:

rebuilt bottom end 10.5:1 compression
Rebuilt head with 5 angle
4-2-1 headers
magnaflow cat-back
udp
cai
obx intake manifold
190 fuel pump
fmu
bigger injectors
obx fuel rail
msd ignition
zex wet nitrous
act clutch
 
99rs said:
I am looking to make 350whp on an all nitrous motor. I need some ideas on what do but.

Here is what I was thinking:

rebuilt bottom end 10.5:1 compression
Rebuilt head with 5 angle
4-2-1 headers
magnaflow cat-back
udp
cai
obx intake manifold
190 fuel pump
fmu
bigger injectors
obx fuel rail
msd ignition
zex wet nitrous
act clutch
to get 350hp you are gonna need a large shot.. i highly, highly reccomend direct port
 
Like how much?
Which nitrous system should I go with?

I need some sugestions on what to get: bottom end, top end, clutch, fuel, how big of an exhaust ect....

ALL THE INFO IS GREATLY APPRECIATED!!!!!!!!
 
I think shooting for 350hp using nitrous is a tad bit unrealistic but thats just me. Your defiantly going to need a direct port system with a multi-stage setup going if you want to have such a huge shot unless you want ridiculous amounts of wheelspin. As for brands, I'm pretty sure that either Nitrous Express or Holley's NOS would have what you needed to hook up a direct port multi-stage shot.
 
Yeah forget ZEX or Venom, neither of those are goign to have the adjustability you need for 350HP (do they even make direct port?)

350HP is 350HP, so you're gonna need a diesel clutch, and i'd reccommend a 3" exhaust as well.

Run away from OBX I've heard only bad things about them. Look into a custom intake manifold for this setup, and I have feeling for something like this, it won't be the only custom piece you'll need. 350 is a lofty goal, especially for a NT, and it seems like you're somewhat new to all of this. Do some research, and get more specificity, instead of just "MSD ignition, bigger injectors," etc.

if you plan on rebuilding the bottom end, why don't you just go turbo? Cheaper in the long run, plus you'll always have boost at your disposal, as opposed to N20 (need ot open the bottle, make sure its full, etc.)
 
I'm going to have to agree with what EclipseSH21 is saying, your engine is going to have to be insanely built for that sort of instant power...remember that our cars have 160bhp (approx 120hp at the wheels). At the amount it would cost to do this, you should look at a turbo kit where your power is "always on" and doesn't require expensive fills
 
120whp-350whp with only nitrous? you will have some real issues. Even if you COMPLETELY build your motor people havent harldly even broken the 200whp mark with the 420a nt. So even if you get that much whp, youre still going to need a good 150 shot... But i hated it when people roasted me for wanting to turbo a 420a, so im not going to burn you for wanting to do this... but its going to be REALLY hard and expensive.
 
White97eclipse said:
120whp-350whp with only nitrous? you will have some real issues. Even if you COMPLETELY build your motor people havent harldly even broken the 200whp mark with the 420a nt. So even if you get that much whp, youre still going to need a good 150 shot... But i hated it when people roasted me for wanting to turbo a 420a, so im not going to burn you for wanting to do this... but its going to be REALLY hard and expensive.

who roasted you for wanting to slap a snail on a 420a? WTF it's quite a common practice on here, many member have done it. Trying to drop a 4G63 into a NT dsm is another story however and you WILL be roasted for asking. Through the use of a prebuilt kit, installing a turbo is quite easy or even building your own isn't too bad...look at Chris's under $1000 turbo kit that functions quite well
 
Yeah well, you know how it is on here. " just sell the rs and buy a gsx....the 420a just isnt a good enough motor EVEN when it is rebuilt with low comp pistons.. not to mention the fwd...." :rolleyes:
 
White97eclipse said:
Yeah well, you know how it is on here. " just sell the rs and buy a gsx....the 420a just isnt a good enough motor EVEN when it is rebuilt with low comp pistons.. not to mention the fwd...." :rolleyes:

Other people have different goals making a suggestion and telling someone to get another car as forth we all different goals and aspects please try to keep your opnions to yourself :notgood:
 
versatilx1 said:
Other people have different goals making a suggestion and telling someone to get another car as forth we all different goals and aspects please try to keep your opnions to yourself :notgood:

I'm pretty sure he was being sarcastic. He does drive a turbo 420a himself and the rolling eyes should have been a dead give-away.
 
I hope so sorry if i jumped to conclusions im just really uptight about comments like that
 
Had you read my earlier posts I was encouraging the guy to do his motor the way he wants. While doing so i mentioned that people gave me crap for my motor dreams with the 420a too and someone asked me what they said. why would i bash turboing a 420a when i drive one? :confused:
 
Looks like someone just read a part of the thread and decided to jump in, instead of reading the whole thread first. Anyways back to the original poster. Nitrous can be a great power adder but its not as simple as most people think it is. You won't just throw on a direct port kit and 150 shot away. (I think you already know this). You're going to need to build the motor strong. Forged rods and pistons all the way, plus injectors, tuning, etc... There is alot of parts that will go into it for a simple power boost when you decide to empty the bottle. Then its back to the fill station for some more n2o. For the price you'll spend building this nitrous breathing dsm you could probably do a turbo kit. Turbo's are constant power every time you spool them, no filling up over and over. So instead of the 1000 direct port kit, go turbo with it. You'll do the same motor build up but instead of for nitrous go for boost. Even if it is a little more expensive with how often you'll want to hit the go-go juice and have to refill it'll be cheaper in the long run. in my personal opinion nitrous is over-rated. For me it'll come when I'm happy with my car the way it is, but want a little insurance for when someone faster pulls up.
 
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