actual HP gain from NOS on a car [Archive] - Suzuki GSX-R Motorcycle Forums Gixxer.com

: actual HP gain from NOS on a car


eatmydust
05-03-2010, 11:14 AM
Hello everyone,

I want to install a NOS kit on a 02 Mercedes Benz C240 (168 HP stock) just for shits and giggles without blowing the motor. Maybe 50 or 75 shot the most.

Does anyone have experience with NOS and how much actual HP I can gain from it?


Please, constructive replys only. if you are going to flame, dont bother replying.

thanks

USAFR600
05-03-2010, 11:53 AM
On an NA platform, the "shot" is typically the HP gain. Things get a bit different with Turbo applications due to the way the cooler air affects turbo horsepower.

71Dragtruck
05-03-2010, 01:41 PM
Also a low HP stock motor will have greater gains then a built motor. So a 50hp shot should be very close to 50hp in your application.

dev1360
05-03-2010, 02:01 PM
First of all, it's not "NOS" or "NAWZ", it's Nitrous. NOS is a company, Nitrous Oxide Systems. There are many different companies. Different companies rate their kits in many different ways. NX, Nitrous Express, rates their kits in actual HP, but every combo and motor is different as to the gains you will see.

Mostly, safety of the kit depends on how properly you want to do it. People would be surprised of the size of shot they can run if they would be safe with their fuel and timing. Nitrous increases cylinder pressures, which in turn, creates more heat and makes the engine susceptible to pre-ignition. The safer side of a set up is generally 2 degrees retarded on the timing for every 100 shot, some will say more, some will say less. Just put some 93 in it, find a way to pull timing and have a shit load of fun.

gunther1000
05-03-2010, 03:23 PM
I would worry about the stock internals of your M.B. Not the most stout lower end motor. But if your really not concerned im sure you will have fun before it goes boom.

How many miles does it have anyway?

TBagr
05-03-2010, 03:28 PM
last time i poured NOS into my tank my truck gained 75hp! not bad for $3 a can and its available at almost every convenience store.

Walkn-gixxer
05-03-2010, 04:17 PM
I wouldn't do it. I hope your bottom end is in good shape. And your engine has been well maintained. Also get it tuned and make sure your A/F is where it should be. If not wait for the boom.

eatmydust
05-04-2010, 12:05 AM
the MB has 57000 miles.

I know the possible effects of it, but the thing has no guts whatsoever.

But is 50 shot "safe"? what are your opinions

USAFR600
05-04-2010, 12:13 AM
the MB has 57000 miles.

I know the possible effects of it, but the thing has no guts whatsoever.

But is 50 shot "safe"? what are your opinions

35-50 dry shot (maybe some -1 plugs) should be safe on a stock motor. Anything higher than that and I'd start looking at a wet shot, colder plugs, retarded timing, more fuel, etc

I ran a 75 dry shot with -1 plugs on an H22A motor (Honda Prelude) for years.

SPL170db
05-04-2010, 12:14 AM
Hello everyone,

I want to install a NOS kit on a 02 Mercedes Benz C240 (168 HP stock) just for shits and giggles without blowing the motor. Maybe 50 or 75 shot the most.

Does anyone have experience with NOS and how much actual HP I can gain from it?


Please, constructive replys only. if you are going to flame, dont bother replying.

thanks



Nitrous and blown


dyR0U_fYtwY

USAFR600
05-04-2010, 12:19 AM
Nitrous and blown




:lol

THEMANRACING
05-04-2010, 12:30 AM
This is a stupid idea. You will cost yourself huge money and frustration if you do this.

N2O is super hard on parts. On a stock motor it is simply a time bomb. It's not if it will blow up, but just when it will blow up....

oldgixxer
05-04-2010, 07:32 AM
why not just upgrade to an AMG?

eatmydust
05-04-2010, 09:16 AM
why not just upgrade to an AMG?

because i dont have 20-30k sitting around for a used one. plus, an used amg without warranty is PITA to maintain and fix

oldgixxer
05-05-2010, 12:17 PM
...... plus, an used amg without warranty is PITA to maintain and fix
....and so is a C240 with melted pistons&a blown trans from nitrous:dunno

WhiteGT
05-05-2010, 06:33 PM
Honestly, take it to a speed shop, they will let you know, pretty much a 50 or 75 shot, WITH A SAFE TUNE FROM A SHOP, you will be ok. But make sure you get it tuned by a dyno or you might as well just throw the motor out now

camshaftgsxr
05-05-2010, 06:39 PM
buy a e30 beemer problem solved now its slow and fun

oldgixxer
05-05-2010, 06:52 PM
Honestly, take it to a speed shop, they will let you know, pretty much a 50 or 75 shot, WITH A SAFE TUNE FROM A SHOP, you will be ok. But make sure you get it tuned by a dyno or you might as well just throw the motor out now

An ECU tune for an MB is in the $1500&up range....

camshaftgsxr
05-05-2010, 09:23 PM
seriously.. are ya'll discussing a BUDGET MB build? ...a budget build? .....a build on a >>>BUDGET<<< :shifty :shifty




i hate to point it out but that doesn't exist

USAFR600
05-05-2010, 10:01 PM
seriously.. are ya'll discussing a BUDGET MB build? ...a budget build? .....a build on a >>>BUDGET<<< :shifty :shifty




i hate to point it out but that doesn't exist

FAST, RELIABLE, CHEAP.


Pick two :punk

iLLiE586
05-05-2010, 10:03 PM
Just putting a nitrous kit in and half assing it is gonna lead to bad news. With major HP stuff like nitrous/turbo you can't cheep ass it, you gotta go all in, or stay away from it.

nitrous36
05-05-2010, 10:36 PM
FAST, RELIABLE, CHEAP.


Pick two :punk

Best put.

oldgixxer
05-06-2010, 04:20 AM
seriously.. are ya'll discussing a BUDGET MB build? ...a budget build? .....a build on a >>>BUDGET<<< :shifty :shifty




i hate to point it out but that doesn't exist

:cheers
I can vouch for the fact that NOTHING about modding a Benz is cost effective.....

soysauce021
05-06-2010, 10:47 AM
:cheers
I can vouch for the fact that NOTHING about modding a Benz is cost effective.....

Agreed, this isn't some rice rocket :lol OP should sell the damn car and pick up a honda or something. He can mod the crap out of it for cheap. Blow the engine? Get another one for $500 easily.

Wait till he sees that headers are going to cost him at least $1500, ECU upgrades another 1000, nice shiny exhaust - another $2000, brabus bumper? the front alone, unpainted will cost more than full body kits, installed and painted on a rice rocket. :lol

I've always told my friends it's not about buying the car (MB, P, BMW, etc.) it's about maintaining it (in this case upgrades :shifty)

Driving_Miss_Daisy
05-06-2010, 12:31 PM
Your best bet is to use a wet kit not dry. Wet will throw fuel into the mix so you do not run lean, that is what melts your pistons. You could probably get away with 50 wet shot and maybe even a 75 wet shot will work.

Also get a wOt switch if you are standard, that way if you miss shift it stops spraying when you take your foot off the gas.

AJ gsxr750
05-10-2010, 12:25 AM
Also a low HP stock motor will have greater gains then a built motor. So a 50hp shot should be very close to 50hp in your application.
I don't know what kind of stuff you've been spraying but the jet you choose should be pretty damn close to your actual hp gains on a stock motor and a built motor. I had a 1998 Trans Am with a lot of stuff done to it (motor and other things). On motor it made 390hp and on a 100 wet shot it made 508hp...thats a gain of almost 120hp. A lot of it depends on the tune. A shitty tune can get you a gain of 25hp on a 50 shot. Don't put nitrous on and get a cheap tune from someone that doesn't know what they're doing. If you're doing it for shits and giggles, don't go over a 75 shot and pull some timing to keep it conservative. Yes, nitrous can be hard on parts, but so can turbos and s/c....but the longevity depends on the quality of the parts, the quality of the install, the tune, and how you drive it. And i agree with the guy above me, get the safety stuff like filters and a WOT swich and a digital window switch and dont spray before 3000 rpms and make sure it turns off before redline