Ok, i used to be boosted so i have a built motot. Well, i got tired of the whole turbo thing and now i have a motor just waiting for something to be done with it sitting in my car. what is the best way to feed the motor 100 wet shot or maybe even more? with the ecotec manifold, i would be afraid to put that much through it.
If you plan on going that big I would deffinatlly go direct port. What are your expectations out of this? are you doing this for @!#$s or to see how fast you can go on the bottle? Being a front wheel drive car you will have lots of wheel spin with bigger shots with out use of a progressive controler.
direct port kit with a progressive controller. no way your gonna be able to hit a full 125 or so shot down low without spining. and u hit the limiter with that much nitrous, that engine is toast.
Everyone's said it. Best and most reliable way to get each piston the same amount of nitrous.
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so what kind of compression are you running. From what I remember, nitrous is best used on a high compression motor, where as boost is best for a lower compression motor. So if you changed that, you might wanna stick with the boost.
Scott
When I boost, you boost, we boost
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You have been banned from NEJBODY.
You've displayed wayyy too many acts of pushing people to their limits.
It's never cool to tear people down for what they want to do.
NEJBODY is a team. We're not the same as JBO where everyone bashes on eachother.
I'm surprised you show up to our meets after half of the things you say on here.
^^^Agreed
If you built your motor for a turbo, be SURE that it's going to be just as reliable when it's on nitrous, because that does change things.
A fogger setup is your VERY BEST bet, yes. And obviously you won't hook up with a 100-shot if you spray it off the line. Sh1t...I couldn't even hook up that way on my 60-shot. But once you're stuck and rolling, it's QUITE the "put you back in your seat" experience.
are u 2 on crack?? nitrous wants low compression. if u try to spray with high compression your going to have the same problems as if tryign to boost with high compression. the cylinder pressure increases DRAMITICALLY with nitrous due to the explosion it creates.
if you run nitrous without a high compression engine without pulling timing or running high octane fuel (higher then 92-93) your gonna have severe detonation.
^ not if you pull timing like your supposed to ( 1 deg for every 25hp ) and I would hope one used high octane with that big of a shot......
spray it with a zex wet kit if you hit rev lim the zex box will shut down nitrous and no detonation
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^ not if you pull timing like your supposed to ( 1 deg for every 25hp ) and I would hope one used high octane with that big of a shot......
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if you run nitrous without a high compression engine without pulling timing or running high octane fuel (higher then 92-93) your gonna have severe detonation.
an msd system is needed to pull timing since we have a coil pack setup. it would be cheaper just to run lower compression pistons.
John H [Cavalierkid wrote:]are u 2 on crack?? nitrous wants low compression. if u try to spray with high compression your going to have the same problems as if tryign to boost with high compression. the cylinder pressure increases DRAMITICALLY with nitrous due to the explosion it creates.
if you run nitrous without a high compression engine without pulling timing or running high octane fuel (higher then 92-93) your gonna have severe detonation.
why wouldnt you be pulling timeing in the first place?
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its "recomended" you pull timing. (1 deg for every 25hp ) thats correct. HOWEVER most people dont pull timing till 75-100 shot and they usually do 1 deg, if any
i believe darkstarts ran 100shot without pulling timing on his eco with stock compressoin, and nitro has done it on a ld9 without pulling timing on stock compression.
u can do what you want, all im saying is pump fuel will only work so far. and since MOST people dont wanna spend 700 or so on a MSD system , why not just run low compression with that kinda shot. u will be fine with a 75 shot on standarded or lower compression without pulling timing. if your running 11:1 or higher and try to run 100shot, your gonna need to pull like 6-7 degress to not detonate. so the power your gonna loose by pulling timing is gonna equal out with going with lower compression and not pulling timing, and be cheaper
DIRECT PORT.
"if your running 11:1 or higher and try to run 100shot, your gonna need to pull like 6-7 degress to not detonate. so the power your gonna loose by pulling timing is gonna equal out with going with lower compression and not pulling timing, and be cheaper"
the reason why ignition is retarded when using nitrous is because the combustion process is faster with nitrous, than with just regular air and fuel.
if u didnt retard timing then the spark is to soon and the "explosion" is too early (slightly before TDC) causing tons of stress on rotating assembly.
U dont "lose hp" when u retard timing on a nitrous setup. U simply account for the faster burning mixture. Which equates to a loss of power when not sprayiing but when u are sprayin it will optimize HP.
Increasing the compression ratio with nitrous is beneficial to a certain extent.
Comp. also increases the rate of combustion so u will have to retard timing even more (5-7 deg total). Which equates to about the same amount of power (if not more) when not spraying but u would make quite a bit more HP when spraying.
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John H [Cavalierkid wrote:]are u 2 on crack?? nitrous wants low compression. if u try to spray with high compression your going to have the same problems as if tryign to boost with high compression. the cylinder pressure increases DRAMITICALLY with nitrous due to the explosion it creates.
if you run nitrous without a high compression engine without pulling timing or running high octane fuel (higher then 92-93) your gonna have severe detonation.
WRONG!!!!
Nitrous loves a 10.5-11.5:1 comp ratio. u are correct about the supercharger and turbo though, they like low comp. this is because IAT's are significantly lower.
Reason for this is that a super/turbo charger draws in ambient air, then it naturally gets heated up, only to cool it down but it is still hotter than the outside air. Where as N2O is compressed in a bottle (gets super cold) then is sprayed, which in turn cools down air entering the motor
_________________________________________________________________
EFFICIENCY DETECTIVE
Fast cars. I respect them ALL. Brand elitism is for fanbois and benchracers
daily: 99 civic Si
deceased: 95 cavy '00 LD9 auto swap (vandalized)
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WRONG!!!!
Nitrous loves a 10.5-11.5:1 comp ratio. u are correct about the supercharger and turbo though, they like low comp. this is because IAT's are significantly lower.
Reason for this is that a super/turbo charger draws in ambient air, then it naturally gets heated up, only to cool it down but it is still hotter than the outside air. Where as N2O is compressed in a bottle (gets super cold) then is sprayed, which in turn cools down air entering the motor
obviously you make more power with higher compression... what im saying is u cant do 11.5:1 compression on OUR cars and run a 75-100 shot on pump fuel without pulling timing. we have a coil pack ignition.. so its not like a honda and u can just knock back timing.
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Increasing the compression ratio with nitrous is beneficial to a certain extent.
Comp. also increases the rate of combustion so u will have to retard timing even more (5-7 deg total). Which equates to about the same amount of power (if not more) when not spraying but u would make quite a bit more HP when spraying.
you will ping if u do this on pump fuel...unless you wanna spend 700 on a msd to pull timing...
thas all im trying to say. hell you can boost a 11:1 car if u want if u have high enough octane and a nice ignition... its not practical though.. not for a street car on pump gas
i think it is totally pracitcal. I thought MSD's were way cheaper than 700. if they were 700 i wouldnt have one now.
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EFFICIENCY DETECTIVE
Fast cars. I respect them ALL. Brand elitism is for fanbois and benchracers
daily: 99 civic Si
deceased: 95 cavy '00 LD9 auto swap (vandalized)
it was a rough number. i think the msd-dis 2 is like 500ish.
