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#37 | |
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Take an avg. n2o combo and with say a 150-175 shot on it. It is not uncommon for a n2o combo to make well over 200ftlbs from a 150 shot...say your at 315hp/300ftbls-ish at the tires n/a then add a 150 shot...taking away from power loss it is very easy that combo will put down 425-450rwhp and 500ftlb. Nothing will probably equal the quickness of the power hit either...off to on, on demand. If n2o does one thing at all it is make gobs of torque (why it is sometimes even called torque in a bottle). Also depending on were your running the alt. and weather does not play as big a role...say its hot and humid turbos will probably not be working to their best...n2o is -125* with X oxygen regardless (why n2o is sometimes called atmosphere in a bottle). Again this is on avg street driven cars...not purpose built track cars but cars you have greater chances to see on the street on a regular basis but still put together properly. The devil is in the details and both are great if used correctly...for one I love turbos and hope to build one someday. I have a n2o setup and love it for the simple fact it is not always there. I can knock down 24+ mpg as well and on less than 93 octane. That savings would cover the price of n2o. Turbos are just so damn cool though and make great power and can be turned up easier than a charger. Even a charger is a nice setup once you get to the level your looking for. All 3 compete with one another and all 3 win. |
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#38 | |
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One of the advantages of a properly setup turbo is the broad torque along with the gobs of torque they produce. It's not uncommon at all to see torque levels eclipse horsepower levels...and actually quite the opposite (see sig). Seeing as it also creates it's own atmosphere....it's also not going to be affected the way nitrous would be at higher elevations. You would effectively have to increase the nitrous shot at higher elevations to compensate for the power lost in n/a form. There is no doubt though on how instant nitrous is...and the cooling effects are advantages even with turbo setups. I will say though that I can get upwards of 28mpg on the freeway....albeit difficult. 24mph seems to be the norm for me. Sure I have to pay a bit more for premium....but the extra costs (15-20 cents per gallon) are minimal.
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1997 Rio Red Cobra Vert Gone but not forgotten, 1989 TT notch... Best 1/4: 11.35 @ 125.84mph (1.77 60') 489rwhp/527rwtq |
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#39 |
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mid 11's at 127 damn...do you let off at the 1/8th or get 3-4 second 60fts? That is what 1.5 seconds off what the mph shows you can do.
Your combo is basically what I want to do down the road with twins or a t67 single. I bet that is a lot of fun on the street. combo to combo...go race and see who wins in the end I dont think a closely matched race will be boring to watch no matter who wins. higher alt. is a killer for boost as well as less atmosphere pres. is avail. I have heard people say n2o is easier to tune at alt. or at least not as effected by the alt. |
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#40 | |
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To top it all off, I was breaking up on the big end due to a faulty (brand new) MSD cap and rotor. Come to find out the rotor tip broke off! My ET's will be dropping next year for sure! ![]() As for altitude changes, you have to remember that turbo setups are unlike other types of forced induction in that they have the ability to control boost based off of the engines vacuum/pressure. At higher elevations, you will have virtually the same horsepower as lower elevations. The wastegates won't open until they have reached their internal setting....so you will reach the same amount of positive manifold pressure. It's for that reason that SAE elevation correction is limited to a max of 3%...and that is at the extreme side of the spectrum. FYI, here is a small clip of a vid I took a couple of years ago. http://videos.streetfire.net/video/T...sin_141490.htm |
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#41 |
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That makes sense about the wastegate but you would still think it is working harder or at least taking longer to build up the power as there is less air volume to be had at higher alt.
I understand the tire change...I started at least running BFG DR at the track vs. the street tires I had been running. Best 60ft on street tires was a 1.9...best so far on DR is 2.1 the last run I made that night. Got some great advice and that 2.1 was .3 from the prior best...just need to work on it a tad more. Hope to get a 1.7-1.8 range on avg. before going to a MT DR or ET street.DAMN nice setup 5 lug and all again basically what I want to do down the road...I may have to do it to the 94 down the road but I would love to also get a notch and do that. |
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#42 | |
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Yeah, that run I had was fresh off of the freeway with a 45 minute summer drive to the track. As for launching....yeah, it's going to take some time and some PRACTICE! In n/a stock longblock form (sans upper/lower intake) it wasn’t out of the norm to cut 1.7’s on my 17” nitto’s. The extra power however is sooooo much harder to control without going to a full out slick. Using only skinny 235’s doesn’t help too much….but with the proper technique and a functioning 2-step, 1.6 or lower 60’s shouldn’t be out of the question.
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1997 Rio Red Cobra Vert Gone but not forgotten, 1989 TT notch... Best 1/4: 11.35 @ 125.84mph (1.77 60') 489rwhp/527rwtq |
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#44 |
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all i will say to the yahoos on here...11.06@123 stock 130k mile shortblock, stock cam, stock ecu/no piggyback, p heads, typhoon intake, 30lb injectors and a NOS big shot efi kit set for 150hp...nitrous rules..."from a streetcar to a racecar at the flip of a switch"
I can get ALOT of bottle refills for the 5k price of the ots turbo kits...yes i know you can diy it for relatively cheap, but then again how long did it take you to install the turbo and 'work' the bugs out w/the tuner and all...all i had to do was pull my upper intake and put the plate on... Lets not talk about which is better on the street...millhouse, didn't appear from that video that your car gets great traction, so I don't think anyone gets to play that card Far as im conserned, for cheapie cars (i.e. cars running 9's and slower) nitrous rules because of it being cheap...once you get faster than that things change...for instance Troy Pirez has a 600+ci motor on nitrous and runs 4.8x's in the 1/8 while an aquaintance of mine does the same w/a tt cobra but only 427 cubes... again it depends on purpose...when i build an all out race car it will be turbo, but for the street, nitrous is fast enough for me
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from a street car to a race car at the flip of a switch No Respect Racing '07 |
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#45 |
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I dont know, I'd just drive around and purge my NOS, what else is it supposed to do? I've seen those kits too that have a blu-ish LED that you mount near it so the purge is lit up, thats kinda cool too...
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#46 | |
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There are many...many kit's available for the 5.0 mustang under $3000 (B&G currently has a sale for $2500). Those kit's can be installed and perfectly tuned in a weekend. There are no bugs if you take it to a qualified tuner. Don't forget too that most of us tubo guys get the added fuel economy from runny a lower numeric gear ratio (not that most of us care). As for me...considering I fabricated most everything myself....I didn't car about time. The same goes in regards to tuning. It's something I wanted to learn....and as most everything it takes a bit of time to do so. Most only need to go to a tuner. I will say that if you are running around with p heads and no tune...you are likely short-changing yourself on power. It's not uncommon to pick up 15+ horsepower after a head swap with a simple tune. As for traction...I was then running around on bald nitto 17" drag radials in 40* weather. Traction was obviously an issue. With my current skinny 235 60 15 MT street radials....traction is far, far better. It's quite apparent that both turbo and nitrous setups producing similar power are going to have the same traction issues. For many of us that go WOT on a regular basis, the bottle would be a detriment to not only our budget...but our fun factor. |
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#48 | |
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1. Yes you can learn to turn yourself but must invest time and money or just pay someone else for theirs, while this may offer some an intrinsic reward I have always said that I don't care what method I use to go fast, I just want to (so 2500 for the kit and 500-750 for a tune or software, I think we can both agree that the turbo car will not run well w/o a tune whereas the nitrous car will) 2. With nitrous due to the torque, i run 3.55's or 3.73's, and i too was getting over 20 mpg 3. I can certainly agree that cold weather will adversly affect traction esp on a turbo car that will make more power in dense air. 4. I didn't want to add weight to a car or heat to the enginebay(dont know how much a turbo setup weighs but it would def be more than a bottle, plus it is over the front end) 5. Many turbo setups I see cut the car (i.e. fenderwells are trimmed), to me this was the deciding factor and while the diy setup could enable you to move the turbo where you want, it just seemed like too much hassle 6. I believe you made a comment about turbo creating its own atmosphere, partially true but not entirely...remember it is only taking ambient air and generally increasing the temp whereas the nitrous is truely making its own atmosphere...nitrous is -130 degrees at the nozzle i believe check out the temp guage on this manifold (I know a manifold isn't going to be 80 degrees on a running car but...) http://www.zex.com/Base/Video/ZEXPlate_WEB.wmv 7. Fuel system, does not need to be very intricate on a nitrous car (Tuten in '03 proved this low 10's w/nothing more than a 255 inthe tank, stock rails and all) try to do that w/a turbo setup and your asking for problems...ive had friends burnup quite a few motors due to this (supercharger combos which bsfc is less than turbo). 8. Lastly, I agree that the turbo whistle/bov is much cooler than purging...that is so 90's. That p headed combo was '05, '07 I had a 347 on nitrous and now I am building a 351w based wilson manifolds dual stage setup, hopefully putting the other combos to shame...
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from a street car to a race car at the flip of a switch No Respect Racing '07 |
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#49 | ||||||||||
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Nitrous does not create it's own atmosphere...but rather is a chemical additive. The difference can be seen by looking at a vacuum gauge while on the juice under wot. Quote:
). Superchargers are a different beast....and because of the extra parasitic drag on the crank will require a bigger fuel system per rwhp when compared to a turbo setup.Quote:
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#50 |
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thanks, you too
I just realized how off topic we got...to the original question I believe for all out race combos nitrous has difficulty because of the abrupt power that comes on, which makes traction a problem and is very hard on parts...the instantaneous pressure jump the cylinder sees w/nitrous is hard on everything from rings/pistons to bearings...the paradox that is unique w/nitrous is that the instant you hit the button, that is the most tq you will see (generally it falls from that point on) whereas a turbo will be flat and a supercharger will rise until the efficiency of the blower is met then fall. The thing with nitrous is that were it is hardest go get traction (1st 60') is where you have to win because that is the most tq you will see and due to the topend charge of the turbo cars (sometimes upward of 40+mph on the back half of the track). I remember an article interviewing Sam Vincent (NMRA SSO racer) who said he had to have a turbo car covered by a tenth to the 330' to make it a race.
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from a street car to a race car at the flip of a switch No Respect Racing '07 |
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#51 | |
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#52 |
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Wow, sometimes threads do get off track. The original question was: "I am told that a nitrous car can't really compete with a turbo car? Why?"
What level of competition are you asking about? Street strip stuff both have their ups and downs. Outlaw style competition is a different game. |
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#53 | |
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#54 |
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LoL - Turbos gotta wait, but nitrous is nevah late.
![]() Can't beat oodles worth of testicularly-torsionating torque!
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#55 |
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[QUOTE=ls1killa;8445486]that's a damn shame 11.0's on p heads QUOTE]
and that was only one night on the worst 60' (1.53 compared to a 1.46 when I ran out of nitrous) of all my nitrous runs...give me time to play with some variables and it would've went high 10.8x's...then I'd but the 200 or even 250 gun to it and pull the pin
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from a street car to a race car at the flip of a switch No Respect Racing '07 |
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#57 |
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Turbos are great power adders, but can be hard to tune and uber expensive in comparison to a No2 setup. However, for simple stuff, lets say a 10 sec weekend warrior No2 can be great much cheaper and if tuned right the car can be dead consistent. Can a No2 car compete? sure can...it just may need to be a little lighter than a turbo car.
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#58 | |
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There is no doubt about costs though....as nothing can compete with the up-front costs of n02. |
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#59 |
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i like all power adders. but you cant say a turbo kit isnt expensive.....350 bucks for a nitrous kit to make ALOT of torque.....slap it on in a couple of hours and go. Turbo kits take time and ALOT of money (couple grand easily).
If i had lots of money id prolly have a boosted car. But nitrous kits are cheap as hell and can keep on going easily. bottle fills don't bother me that much, its worth it for that nasty torque hit
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#60 |
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I use to get alittle over 200rwhp out of my setup, ran it for over 3yrs. For a street car, it was alittle too much. Hard to tame that big of a shot. Sure it was alot of fun but my car is much faster now with the turbo setup. And once I install my auto, it will be that much better.
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#61 |
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turbo guys will never concede the fact that something out there is = or greater than a turbo setup. Plain and simple, they wont open their eyes.
I have had a turbo fox, KB 97, 2 prochargers on a 97, and a N2O fox. That beign said, with all the headaches of a turbo kit, exhaust gaskets, excessive heat burning #### up, tubing in the way of everything, and the constant maintenance, belts and tubing on procharger, I am going to nitrous on my 97. It hits hard and I'm sorry but my nitrous fox was faster than my turbo fox, both on AFR headed 306, 175 of gas and T70 @10-12psi, the nitrous setup was faster and easier to maintain and deal with. So what ifyou have to fill bottles, I'd rather pay to fill bottles than to spend all my time keeping everything in check and the car running, whats your time worth?
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#62 | |
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I'm curious, how quick was your T70 setup running 12psi? That should have been an easy low 10 second ride with a decent launch. A for spending money on bottles....have fun with that. The only cash I dish out for my turbo stang is subtle upgrades every year....and nothing related to upkeep of the turbo setup. Again, a proper turbo setup will not require any more maintenance than a naturally aspirated one. |
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#63 |
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First off i love nitrous, i have it on my car ,i dont feel its expensive compared to the cost of a turbo setup.What i like most of all is the n2o is only on for the time of the run and goes in cold drastically reducing cylinder pressures during normal driving and not needing an intercooler setup That being said though just go to turbomustangs .com and you will see very quickly who the Boss of the poweradders is.
BigLar
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#64 | |
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Either way, I'm changing from Procharger to Nitrous on my 97 and personally wouldnt go turbo again, its not about crazy always available power to me, its about having a little fun every now and then and retaining true stock-like driveability. Dont get me wrong, I like a well setup turbo and respect its potential, but I'm too lazy to stay on top of it.
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#65 |
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Reversion becomes an issue with nitrous in the super high hp applications.
At this time boost has the ability to fill the cylinders better. Figure out how to inject nitrous into the cylinders with the valves closed and turbos/blowers will become a thing of the past. Just my opinion.. |
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#66 |
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this thread makes me laugh !!!! It all really depends on what YOU see as a advantage and the setups. you cant compare a stockish motor/SMALL turbo with 8 psi to a stockish motor running a 300 shot lol same goes for a stockish motor and a SMALL dry shot vs stockish motor big turbo and GOBS of boost lol
I have had both and for ME the turbo has been better.. for ME!! MY reasons are going to be different then others but I will throw them out. $65 a bottle fill here vs $25 back home adds up quick. it was hard for me to keep bottle pressure. Ohio sucks its allways cold!! left bottle close before a race..way off my dial in lol. That sucked lol left bottle open on way home from track and got pulled over.. REALLY sucked! so I switched to turbo.. same motor went 13.6@ 101 N/A 12.8@112 on a 100 shot and 12.1@ 120 with 8 psi. only took a weekend to install and the ONLY issue I have had is.. TRACTION lol
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#67 | |
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There is also no reason to not have stock-like drive-ability with any power adder, be it super, turbo or nitrous. Obviously nitrous will be the easiest to tune, but with a proper setup....and power adder can have excellent drive-ability. Will it cost more...hell yes it will. If you want all of that power on demand with stock-like drive-ability....a proper tune is a MUST. If your are not the type that goes WOT several times when you take the stang out, then the bottle may suit you just fine.
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#68 |
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I have to say that I am a fan of nitrous.....or was til I ran at a local track and bottle went dry and found out said track didn't offer refills. I am now in the process of installing a B&G kit. I ran a best of 10.95 on spray, 150 shot, and I am praying to at least equal the ET as I am still running a TKO tranny. But the nitrous was absolutely fun launching wheels up, which will be dearly missed, but if turbo will save from running out of bottles and destroying control arm bushings and running retarded timing all the time on the street while not spraying, then I'll never look back. Holy damn run on sentence Batman.
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#69 | |
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I have already installed two-step fired on horn button. I also still have 3.73 gears in the rear end. I guess I'll have to get a baseline down to motivate another gear change. I don't think the rtv on the diff cover is dry yet from the rebuild two months ago. Sucks. Wish I would have foreseen the change coming.
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To top it all off, I was breaking up on the big end due to a faulty (brand new) MSD cap and rotor. Come to find out the rotor tip broke off! My ET's will be dropping next year for sure! 
the last run I made that night. Got some great advice and that 2.1 was .3 from the prior best...just need to work on it a tad more. Hope to get a 1.7-1.8 range on avg. before going to a MT DR or ET street.
). Superchargers are a different beast....and because of the extra parasitic drag on the crank will require a bigger fuel system per rwhp when compared to a turbo setup.




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