ok so i am buying a 1997 m3 with 117k miles and want to make the best power for my dollar. first of all would a 100 wet shot of no2 send it to hell? advice on power to reliability(how much i should use and which system) would be helpful, also will i need to change the pistons, rods and cams cause i know that would be expensive or i was also thinking about selling the motor and getting a euro motor any one know how much those run for? how much can i make off my stock motor? thanks in advance

you just contridicted your self. You used the word reliability with the word No2. They just dont go together. If i were you i would save up for FI. Much safer way to go.

what is FI? fuel injection?

the euro motors are too exspensive to get and build properly so avoid the idea
plus parts are very hard to find

the US engines have great potential and a 3.2 would make a great nitrous motor

i would avoid anything over 75hp with a single fogger, the I-6 manifold on these cars is terrible for wet nitrous
absolutely run one heat range colder plugs
if the ecu has been reflashed then have it turned back to stock
the advanced timing will kill the motor on spray

if you go direct port youd probably wanna build the bottom end for reliability
get some cams, and exhaust is very importan with spray
make sure to keep the fuel lines as short as possible or even mount the solenoid directly to the dizzy block
theres a thread about nitrous done properly on here you should read
also check out the noswizard website for the link to his forum with tons of info

FI stands for Forced Induction i.e. supercharging or turbocharging

If you have such a low understanding of the methods for forced induction or power addatives (I.e. NOS- I mean no offense when I say this) then you should go to wikipedia and start reading. and reading. and reading. You need to read a LOT of info before you try to do anything that could even -potentially- damage your motor. But asking questions is a good way to start, also. NOS seems nice to do, but spraying can become veeeery expensive in the long run- because you constantly have to buy more. And unless you have a hookup, it can get expensive FAST.

My advice is to get an intake, magnaflow muffler for the exhaust, and save your money and go FI.

ya i had a little retard moment there i realized what fi stands for after i post that

ok so if you are saying i should go with a turbo or super charger, which is better ive heard a super charger doesnt put out as much power as a turbo but with turbo u have lag. so how much do they go for? which is more practical? how much boost can i run with stock internals? all advice is appreciated

just get a CAI, a custom chip, M3 or Schrick Cams, a new LSD diff., 24lb injectors, exhaust, and a obd1 manifold. You will like they way your car drives. It will also be reliable and not too expensive.

I don't see this ending well for you

You guys are not being very welcoming at all - man if I posted these responses......

I don't see this ending well for you
:lol:lol:lol

ok thanks blacked out 325i, what is a cai? can i do all that other stuff myself? im not a mechanic but i am mechanically inclined

cold air intake

I'd swap the diff ratio to a 410 and enjoy the car for how it is for a while.

activeautowerke.com

theres some forced induction for you

A small shot of nitrous is not so bad but you are going to want more and thats when it gets costly. Take it from someone who knows. See sig

Rito

i need a quick 7600 dollars so i can manual the car and get 456hp is there a charity portion of the site?

^^ HAHA funny honda racer

lollolololololololololol:lol

As the other guys mentioned I wouldn't rush into FI yet. You really want to get a solid feel for the car before you do major changes. You shouldn't make changes based on asking us. Once you spend a significant amount of time with the car as it is you'll have a much better idea of what you're trying to get out of it. Then we can better help you once you've decided what you think the car is lacking, what your budget is, and what you're looking for in terms of reliability and ease of install. For now though I'd go to www.sharked.com and look at the cold air intakes (that's what cai stands for) and the software. You'll get some noticeable power. Alot of us have had those intakes and software and been happy with them. Good luck.

Austin

i need a quick 7600 dollars so i can manual the car and get 456hp is there a charity portion of the site?

GET OUTTA HERE NOOOB!

dont be scared of N20... i run a 275 shot on my racecar and we use 2 kits totaling over 700hp on our shop car( both v8's)

If you have such a low understanding of the methods for forced induction or power addatives (I.e. NOS- I mean no offense when I say this) then you should go to wikipedia and start reading. and reading. and reading. You need to read a LOT of info before you try to do anything that could even -potentially- damage your motor. But asking questions is a good way to start, also. NOS seems nice to do, but spraying can become veeeery expensive in the long run- because you constantly have to buy more. And unless you have a hookup, it can get expensive FAST.

My advice is to get an intake, magnaflow muffler for the exhaust, and save your money and go FI.

maybe you should take your own advice and stop referring to nitrous oxide as "NOS"

NOS = Nitrous Oxide Systems

nitrous oxide = nitrous oxide

maybe you should take your own advice and stop referring to nitrous oxide as "NOS"

NOS = Nitrous Oxide Systems

nitrous oxide = nitrous oxide

I think many guys know what NOS actually means but just use it as a short way of saying nitrous, kind of like how some people call a tissue a kleenex.

Austin

a 275 shot that is fucking cool what did u have to do to it to keep it from blowing up?

Run very high octane race fuel

thats it? wont the no2 still cause it to blow up even if ur gas is less explosive?

so i can have 500 horses with stock internals and not blow it up if i just get racing fuel?

its a completly built motor with all forged internals. along with the 275hp of N20 you have to add enough fuel to keep your mixture right and retard your timing... people blow up their motors for a couple reasons.......1.) they try to way too big of a shot on a stock motor, 2.) they dont supply it with enough fuel... 3.) They use regular 87 octane fuel 4.) ALOT of people dont bother to adjust their timing

we have over 50 passes on our race car with 2 NITROUS SYSTEMS. the first kit has a 280hp shot and the second kit has a 320hp shot(600hp total)..... the motor leaks down perfectly so far with only normal wear.... the car has been 7.39 @ 191 at 2815lbs.... you cant tell me nitrous isnt good for your motor

Dont do it, thats all the advice youll ever need. Be a man, get power by modifying your car tastefully and not blowing it up with NOS. Or be a even better man and modify the suspention instead. Thats truely money well spent. These are track cars not drag cars.

just beacsue "track cars" use N20 dosent mean you cant use N20 "tastefully" on the street... plain and simple its the best bang for your buck if you use it reasonably.... i usually tell people with stock motors dont put a shot any bigger than 40% of what you motor makes stock. example... if your motor made 100hp from the factory i wouldnt recomend putting anything bigger than a 40hp shot on it... just a rule i use... as long as you use the right jetting(tells you what jets to use when you buy the kit) you should be just fine and pleasently suprised what the hit of a button can do....

just beacsue "track cars" use N20 dosent mean you cant use N20 "tastefully" on the street... plain and simple its the best bang for your buck if you use it reasonably.... i usually tell people with stock motors dont put a shot any bigger than 40% of what you motor makes stock. example... if your motor made 100hp from the factory i wouldnt recomend putting anything bigger than a 40hp shot on it... just a rule i use... as long as you use the right jetting(tells you what jets to use when you buy the kit) you should be just fine and pleasently suprised what the hit of a button can do....
I second this althought i have sprayed 150 shot without tuning, timing adjustment, but i ran high octane fuel. Now that i have the experience behind me I would never advice anyone to attempt this. when playing with nitrous i believe with the right system and properly setting up the kit, timing and running high octane race gas you can easily accomplish your golds with nitrous. Let me repeat one thing " with the right system/setup this can be done)

Just my 2 cents.

Rito

dont be scared of N20... i run a 275 shot on my racecar and we use 2 kits totaling over 700hp on our shop car( both v8's)


Those are also VERY built engines. a 275 shot on any normal engine would rip it to pieces. a 275 shot on my 550hp 240 would probably melt something, and my cooling system is built. with a 275 shot, you're probably alsp passing what the bottom end can support as well.

Race cars are another story, though. if you built it to take it, there's no reason nitrous can be unsafe.

i wanna build a street car that can do a 7 second bloody hell thats faster than my street bike. what have you put into your race car?

also could someone differentiate between wet and dry systems and what they recommend

do you think a stock 97 m3 could handle a 100 shot?

Honda racer, I'm trying to be honest an helpful here, and not just mean. With the questions you're asking you're a long long way from building a 7 second street car, let alone out of a bimmer. Stick with something simple for now like the cold air intake and software, and slowly (repeat slowly) work up from there as you learn more and more about the technicalities of your car and its limitations. We don't want to see you destroy your car. Sure we love seeing the cool pictures of the cracked rods and blocks with holes in them when it happens to people, but we don't actually wish it upon anyone...well almost anyone.

Austin

haha your probably right its tough switching from a 9 second street bike to a cager

LordoftheRoad is right... you should only put on what is reasonable for your engine.... obviously a 275 shot wouldnt hold on on any stock engine...i built my motor strictly for N20... the car only runs 11.30's in the quarter on motor but with the nitrous its runs low 7's( tight converter and gearing).. how much does your average kit cost..$500? even if you use a 50 shot thats only $10 per horsepower... ask any racer and they will take that deal any day

Just a quick note. You don't need a built motor to run just a 100 shot. Now i am not saying nothing can not go wrong but a properly done nitrous system with a 100 shot can be easily accomplished with a good setup.

ok thanks for all the help i think im going to go with a 100