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I have a turbo in my 2k1 civic and a 25 shot of nitrous for low rpm spools. I was just curious about the 2. Anyone out there who knows the answer or wants to give there opinion, then please post it. What do you think is a better set up. I mean horsepower and performance wise. I know our car isnt that great of a motor but if you have the money then what would be better. For example: lets say there is no internals yet. Only bolt ons and nitrous or turbo.

Nitrous:
Port and polished head
All the bolt ons (I mean everything)
75 shot of nitrous (with all extras ex. plugs and all)
Bottle heater

Turbo:
The whole turbo set up with 5-7 pounds of boost (equal to a 50 shot)
25 shot of nitrous for low rpm spools (with plugs)
All bolt ons (I mean everything)

I am just curious because, when I had the 75 shot of nitrous before the turbo, the car felt faster. I need to go to the track or dyno or somthing to be positive. What would be the better set up? Thanks in advance.

 
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prolly felt faster casue there was more tq

 
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sell the nitrous and build the internals. the built motor and turbo will out weigh the plain ol nitrous ne day. just my thoughts. id rather go boosted than sprayed.

 
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depends what size turbo you are running? injectors, ignition, whats your timing etc....

as for nitrous. if youre gonna run a 75 shot just get plugs, ignition, colder plugs, i/h/e and make sure you something to retard the timing when on the bottle 1.5-2 degrees for every 50 shot.

Turbo is only worth it if you are gonna do it right the 1st time if your not dont bother with it.

 
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Your current set up is fine. Stick with the turbo, work on the internals and run at higher boosts. Also, one of the main problems is the returnless fuel system. I have heard of other Turbo makers for other cars convert the returnless fuel system back to the traditional fuel system for better air/fuel ratios.

 
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I would like to go with a nice internals on my boost set up, but I just can't find anybody who will even take a look at my motor. They say if a aftermarket company hasn't made them yet, then they won't touch it either. I don't think they want to take the time.

Tiki said there was more tourque with the nitrous. Can I get more tourque out of my turbo? One more question. Which is least harmful to the motor, Nitrous or turbo? (if they were both set up the best way) How about a dual stage nitrous set up?

 
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I think the nitrous is more harmfull. I've seen a few ppl here with blown motors and they all had one thing in common. Yup, NAAAAWWWWSSSS!

 
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so any pics yet?

 
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yea that and stupidity

Nitrous+Stupidity= Blown Motors

 
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Well-spoken, SuperNegro.

 
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So what I am getting at is that the turbo is a lot safer, but can it produce as much horsepower and tourque on stock internals and on the D17? Also what about the low RPM turbo spool. The 25 shot of nitrous for that?

 
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your engine wasnt made for turbo, so saying a turbo is safe isnt really true. your engine is N/A you can make it safe for Nitrous and You can make it safe for turbo but saying one is safer then the other when it wasnt designed for it isnt really a good way to go about it.

If you are smart and do it the right way nitrous or turbo are both safe and reliable.

 
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im curious to what kind of turbo set up you have. the nitrous felt faster because it does give you more torque. the nx 50 shot will give you around 210 lbs/tq. it is more harmful than a turbo. turbo only forces more air not a compressed gas. stick with the turbo and build up your engine. that would be the best way and the most cost effective in the long run. you wouldn't have to keep refilling the bottle. plus you get the awesome pssssssssttttttttt sound.......... go turbo.........

 
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another misinformed reply about nitrous honestly if you have no experience with it other then some clown that blew his motor dont reply.

 
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Most likely I am going to stick with my turbo. What do you guys think about the that Nitrous Express has that goes on top of your intercooler to cool it when racing? All the info of my turbo is in my DIY in general ramblings. It is not complete DIY but read it. What about the 25 shot of nitrous at low RPM spools? Is that to much do ou think?

 
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the n-tercooler kit is better if you spray Co2 cuz its cheaper and works just as well, as far as the spool up shot for your turbo they have kits that shut off once manifold pressure reaches a certain PSI. This is probably what you would want.

sorry got a lil side tracked on what i was talking about.

 
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Thanks for the info man. I am going to look into that nter cooler. Do you have a pic or price? I am running 7 pounds of boost on my turbo as of now. I might move it up to 9 pounds of boost. I don't know if that is to much or not. I will have to look into it some more. I am also going to run the 25 shot still for low rpm. 1000 to 3000 rpm the turbo spools up around that.

 
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nope i think that n-tercooler kit is like 400 bucks not sure though.

 
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dude whether it be by turbo or NOS....your still faster in our slow civic world my recommendation though.....go to the track for the love of god and me...i am considering your turbo kit for my lx....i am researching so much right now my head is ready to explode.....i wanna know 1/4 mile times that will determine most of my decision...my car is freaking slow all civics are and i need something to keep up with all these mustangs and comaros (factory bought crap that is fast that gives all these young mommy and daddy kids something to brag about and i am sick of all of em)....if i can make the low 14's then i am set thats all i am asking out of my d17a1....anything lower anything in the 13's 12's 11's....major work needed to the block and head....cams pistons rods you name it.....


My Civic

 
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Ya man, intercooler is one of the major components you'll want, if you want it to be safer/faster.

The colder the air, the more condensed it can be, leading to more fuel (compensation by the ECU/ECM whatever).

The air/water intercoolers might run you a bit more than $400, but IMO, they're worth the money. The air/air ones are great, but I think the temperature difference in the air is well worth the money.

Just my two cents, but I wouldn't run boost higher than 8 if you haven't done some internal work.

With just the turbo kit, including an intercooler, I (personally) would run 5/6psi.

Although patience sucks, take the time, and build up the internals, and THEN up the boost. Don't go hogwild until your engine can handle it. It might take time/money, but it'll save you the pain of a blown engine!

Kudos on the turbo, and the DIY, btw!

 
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air to water intercoolers are not for the street, they are for track cars.

 
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is it a written rule somewhere supernegro

 
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not so much a rule but who wants to be driving around and having to pull over to fill up your intercooler with ice and water every 30 minutes.

 
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Not true. They can be used on a street car. They just weigh a little more than an air to air, but the performance is greater since you don't need to be going fast for the intake charge to be cooled. It depends on how big your reservoir is, but here's what happens... You drive fast and you cool the water down which in turn cools down the intake charge. You stop and the water is still cold! That means the intake charge is still being cooled. That means that the intake charge temperature is more stable than an air to air intercooler and therefore you will get better acceleration off the line. They say that a properly made system will be more efficient than an air to air intercooler. This is what I will have in my custom turbo.

 
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I have an intercooler. I was refering to the N-Ter cooler that nitrous express carries. It is a series of tubes that run over top of the intercooler, and when freezing cold nitrous or c02 is run through it, it cools the air going into the motor. I am gonna go to the track with a 7 pound boost turbo and 25 shot of nitrous for low RPM spool and see what it does.

 
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Not true again. It's a closed system! The water doesn't go anywhere. It circulates through the front mounted intercooler and the aftercooler in the engine bay.

 
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that water doesnt stay cold forver you have replace it

 
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and being stopped has nothing to do with performance of your turbo, your not boosting so it doesnt matter long as you are moving and getting air flow over your intercooler you have no problem, the problem is when people go out and buy a GTR intercooler core for a T25 turbo or buy a starion intercooler for a T3/T04E if you have a street car all you need a properly sized Air to Air intercooler.

 
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Would it hurt to have to big of an intercooler. I mean one that is made for a big turbo or like 400+ horsepower? Would it cool faster? Just curious.

 
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numberone.....did you upgrade your ignition too? and your manifold it is custom also right?