-=Z28=-

iTrader: (3)

Okay guys. Can you produce a faster boosted car or nitrous car. Just watched street outlaws (I know tv show) and this guy was screaming that nos cars are better than turbo cars.

I know things have come a long way in both categories, both are similarly violent to your engine, rpms, temps,ect...

Years ago I always wanted to do nos, just slap the base plate under the carb and push the button. But now Id like to do a turbo... Anyways, What chya guys think?? Nos v.s PPsshhhttt.

-Dan

Street Lethal

iTrader: (16)

It's power to weight, Kyle's Camaro is very light, and remember they are only running 1/8th mile. If it were 1/4 mile than NOS would have its' drawbacks. Notice how you don't see that many, if any, roots blowers (other than Tuff Enuff) on that show, as they are ideal for short time and 1/8th mile...

-=Z28=-

iTrader: (3)

Yeah, true. A lot of factors to put into play...

Orr89RocZ

iTrader: (20)

I believe the most power output will be from the turbo car. But nitrous cars can run very strong. But the amount of nitrous you would need to inject would be staggering. Turbo bigblock cars are making 4000 hp. I dont know any nitrous cars that high? Figure a mountain motor 700-1000 cubes making 1500-2000 hp all motor still needs 2000 hp worth of spray

Street car fun? Hard to beat a turbo car flexibility. Good setup with electronic adjustable boost control can make a car run over a several hundred hp worth of range where nitrous needs many stages and electronics to do the same thing. Its not as easy imo and likely more money. Direct port multiple stages is not cheap. Each nozzle is 80-100 bucks and you need 8 per stage

My turbo car basically can run anywhere from 500 ish whp to likely 1100-1200 whp depending on boost switch lol its extremely flexible.

-=Z28=-

iTrader: (3)

See and thats how I was looking at it too. It seems too that nos, cause they are so strong/violent, that they are breaking all the time. So a turbo car, after how ever many runs, you re torque the head bolts, do some other misc stuff to make sure everything is good. As a nos engine, you almost have to rebuild the whole engine... Right? Honestly I dont know a lot about either, But it seems like when I watch racing that nos engines get ripped down after every run, and turbos just run over and over, adjusting on the fly with a notebook or what ever..

What about a nos boosted car??

Orr89RocZ

iTrader: (20)

Well nitrous does seem harder on motor depending on how you run it. If shocking it with big shots at once and no progressive control, it will slam rod and main bearings abit. Heat control is another thing, seems like nitrous has higher heat loads in the short instance a big shot is injected. But a turbo or boosted car will have heat as well. Both can use heat management and proper materials for components like valves and piston/chamber coatings if possible.

But i know alot of nitrous guys on biggg shots have to tear down often. I dont tear into mine often. But its all in the tune. Miss alittle and you'll have to check things out

Street Lethal

iTrader: (16)

Wouldn't bother with it, but that is just me, some cars, especially Imports are very successful with that combo. Don't be impressed with the Street Outlaw guys, because they purposely avoid what is really out there to race, and you will see them race the same guys over and over again. There are cars out there running two less cylinders than all of them that will literally annihilate them, and I mean annihilate, which is why big inch engines running multiple power adders, or 500+ inch big blocks no longer impress me. Supra below has a freaking tame idle for what it runs...

Orr89RocZ

iTrader: (20)

Good luck hooking that on the street... Its not always about power. Lutz got beat by a few of them guys with alot less power. At track lutz would likely win

Street Lethal

iTrader: (16)

Supra can be detuned too...

Not to mention Tuff ENuff's 6 second car that they blacklisted...

Orr89RocZ

iTrader: (20)

Maybe but still cant say it would annihilate anyone til you run them.

As impressive as that car is, its a true chassis race car featherweight. Making somewhere between 2000-2500 hp. Impressive to say the least but there are many other big block type motors making near twice that out there, so how is that not impressive? Most of those are in class series small tire stuff that cant weigh that little

-=Z28=-

iTrader: (3)

I think both are very impressive. I just cant help but think that chief made a big mistake racing that guy for 6k. chief didnt do really nothing to his ride, where ky kelly im sure did a complete rebuild to ready himself for the race.

so how fair was that?

Id like to see a turbo car race a nos, over and over and over to see who lasts.

Is there such a thing as an reliable nos car? I just read a thread here of a guy who has had a turbo on his l98 that had 130k miles on it. He drove it for many years with little problems..

Check this guys set up out...

Orr89RocZ

iTrader: (20)

http://www.speedtalk.com/forum/viewt...t=3295&start=0

Read some of this

-=Z28=-

iTrader: (3)

Good find. However, they forget that the turbo (marshmallow) spools up usually before the race... So when wot, that marshmallow is moving pretty fast. Hate to get hit by a marshmallow going 150mph....or what ever velocity it reaches...

But otherwise, Yes, nos is instant where boost needs to build..

I bet there is a lot of controversy between the two and will always be. They have come a long ways with nos, however, there have been turbos around for a very long time. Hell, water injection was used in planes in WWII and thats similar to nos isnt it?

Orr89RocZ

iTrader: (20)

Water inj is used to cool things down and slow combustion. Very helpful in a high dose nitrous motor and even boosted motors. They were using nitrous in airplanes along time ago thats for sure.

-=Z28=-

iTrader: (3)

They used water injection in wwII planes during dog fights and during take offs. Yeah, used to cool parts and also cool the air, plus taking up space in the combustion chamber.

https://en.wikipedia.org/wiki/Water_injection_(engine)

DIGGLER

iTrader: (1)

Turbo setups are expensive. Nitrous combos are cheaper and less complicated in general. A simple plate kit can put a decent car in the 8s easily. My car went 6.10 in the 1/8 at 3100lbs with a 100 shot. H/c/I lt1 with a plate on it. With such a small amount of nitrous, it would last a very long time.

IROCThe5.7L

Might be a silly question. But do the spray bars in the plate effect NA performance? They don't appear like they'd be a big restriction.

-=Z28=-

iTrader: (3)

A guy would almost think so eh? Maybe not a restriction but does something to the air as it swooshes past.

Street Lethal

iTrader: (16)

Not really, wouldn't even notice it to tell you the truth...

If your going to do nitrous though, do it the right away.

IROCThe5.7L

I'm just looking for a simple 150 shot when I might need it. I'd be lucky if I spray my engine once or twice a year. That's why I was interested in the NOS kit for the TPI's. Seems nice and simple.

Street Lethal

iTrader: (16)

I always get inspired with Nelson's SBC/Nitrous demo...

esc

iTrader: (6)

On a four barrel style plate system, the spray bars (Fuel and N2O) will be between the left and right butterfly valves. There is no difference in air flow unless you count the extra 1/2" of elevation, which may even help it. IMO, there is no downside to adding a plate to 4 barrel manifold, unless hood clearance is an issue.

I believe that the spray bars on a TPI plate would be behind and in line with the throttle plates when open. So not much of a hindrance to flow there either. But I don't have any first hand experience that type of plate system.


I suspect that 150HP is pushing the limits of what you could get away with in a wet plate system on a dry manifold.

TallTim

iTrader: (2)

Going back to the OP, the question to me is all other things being held equal except either adding more and more nitrous or more and more boost, I would offer that nitrous has limits where boosting (turbo or super) does not. After all nitrous goes in at ambient pressure right? More or bigger bottles does not change that. Pumping up the pressure mechanically is what makes the difference. So bigger and bigger pumps (and related) would beat nitrous.

esc

iTrader: (6)

I would have to agree that on the extreme upper end, boost is the way to go. But in the +100 to +600HP range, N2O has a lot going for it.

I would also say that N2O is easier on your crankshaft than using a crank driven supercharger, since you have to pump extra power through the crank, on the power stroke, to turn it.

That said, I think that my next motor will have a turbo.

1992Vortec

Turbo system linear power really helps save parts on the lower hp vehicles. guys taking stock sbc cranks into the 1000 hp range also people getting better results with 10 bolt rear ends because of how the power comes in. cheap nos kits hit and hit hard but more money you got you can make things work. the battle over nos and turbo will be a debate for awhile but like said above turbo is all in the **** twist making for great street applications. Love street outlaws but those aren't street cars. Trailer queens, cool but not lining up at your local street light to race whoever wants it. Now check out Orr89RocZ car that is one badass street car!