NOS in a 5SFE

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If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Page 1 of 4 1234 Last Jump to page: Results 1 to 20 of 61 Thread: NOS in a 5SFE Thread Tools Show Printable Version Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 12-26-2007, 06:28 PM #1 Mister22u View Profile View Forum Posts Private Message View Blog Entries Mad Skillz Join Date Jul 2007 Location Morgantown, WV Posts 199 Thanks  12 Thanks  5 Thanked in5 Posts Total Contributions For
Mister22u     $ 10.00 NOS in a 5SFE Okay, so I like my car and I like drag racing. I've never tried to drag race my 5SFE, but I can imagine the 15-second disgrace that I would churn out in the 1/4 mile.

So, what I had in mind was a 100-shot, for use only at the strip (of course, heheh).

Is this possible? Is there a lot of other issues I would need to do, like changing the timing or fuel pump (or adding a fuel pump)? Let me know what you think.

I'm thinking of a dry system: Amazon.com: NOS 05122NOS Sport Compact Dry Nitrous System Kit: Automotive

or a wet system:
ZEX 82021 "Only $489.88" WET Nitous Kit Honda, Acura, Lexus IS 300, Mitsubishi Eclipse, Sport Compact - Nitrous Kits - Atlantic Speed Warehouse


Thanks for the help!


BTW - the other idea I had was just buying a JDM turbo engine/trans/ECU and doing a swap for less than $2000, but I kind of want something even more esoteric. Last edited by Mister22u; 12-26-2007 at 06:42 PM. Reply With Quote 12-26-2007, 06:56 PM #2 Ben View Profile View Forum Posts Private Message View Blog Entries Same In The End Join Date Aug 2006 Location Reno, NV Posts 4,402 Thanks  20 Thanks  332 Thanked in295 Posts Total Contributions For
Ben     $ 10.00 Originally Posted by Mister22u BTW - the other idea I had was just buying a JDM turbo engine/trans/ECU and doing a swap for less than $2000 I would just go this route There is more to build upon going this way. Custom Illuminated MR2 Name Plates

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Reply With Quote 12-26-2007, 07:36 PM #3 scooterman View Profile View Forum Posts Private Message View Blog Entries megasquirted 5sfte Join Date Dec 2007 Location Northampton, MA Posts 157 Thanks  1 Thanks  18 Thanked in10 Posts Total Contributions For
scooterman     $ 0.00 a dry shot will pop that engine faster than a * insert dirty phrase here *

should handle a 50 wet shot fine, 100 well good luck with that.

you'll need to retard the timing, you shouldn't need a new fuel pump but it wont hurt. Reply With Quote 12-26-2007, 07:42 PM #4 scooterman View Profile View Forum Posts Private Message View Blog Entries megasquirted 5sfte Join Date Dec 2007 Location Northampton, MA Posts 157 Thanks  1 Thanks  18 Thanked in10 Posts Total Contributions For
scooterman     $ 0.00 also something else to add i was reading about that zex system

"Instead of relying on crude micro-switches or push buttons, the ZEX "wet" nitrous system uses advanced electronics to "learn' the throttle position sensors voltage curve."

if you have a 91 or 92 you dont have a voltage curve its either 0V or 5V Reply With Quote 12-26-2007, 07:49 PM #5 mrturrari View Profile View Forum Posts Private Message View Blog Entries I Join Date Mar 2005 Location Salt Lake City, Utah Posts 677 Thanks  2 Thanks  182 Thanked in115 Posts Total Contributions For
mrturrari     $ 0.00 A dry shot is no more dangerous then a wet shot if it is installed correctly. As a matter of fact some would argue it is safer because there is less to go wrong.

100 shot is a lot though. That is almost doubling the hp of the engine and you will definitely need a new fuel pump to use it. You will also need fuel management and tuning to make it safe at that level. Just think of it as running 12psi of boost without the restriction of the turbine in the exhaust. Cylinder pressures almost double, heat output also almost doubles so you need to adjust your timing on the fly to compensate. Reply With Quote 12-26-2007, 09:22 PM #6 scooterman View Profile View Forum Posts Private Message View Blog Entries megasquirted 5sfte Join Date Dec 2007 Location Northampton, MA Posts 157 Thanks  1 Thanks  18 Thanked in10 Posts Total Contributions For
scooterman     $ 0.00 but a dry shot does not introduce more fuel through the nitrous system. The engine would run lean without a fuel modification. Doing a fuel mod on a 5s to only work when firing a shot of nitrous would be pretty difficult would it not?

a wet system would spray more fuel through the intake a long with the nitrous correct? Reply With Quote 12-26-2007, 09:45 PM #7 shimric View Profile View Forum Posts Private Message View Blog Entries I refuse to rule Fail Join Date Apr 2006 Posts 1,625 Thanks  44 Thanks  51 Thanked in44 Posts Blog Entries1 Total Contributions For
shimric     $ 0.00 NOS.....

bwahahahahahahahaahahahahaha

It's nitrous buddy.

"Engaging nawzz"

Reply With Quote 12-26-2007, 11:39 PM #8 Mister22u View Profile View Forum Posts Private Message View Blog Entries Mad Skillz Join Date Jul 2007 Location Morgantown, WV Posts 199 Thanks  12 Thanks  5 Thanked in5 Posts Total Contributions For
Mister22u     $ 10.00 This is all very interesting. I'm now thinking of a 50hp wet shot.

The turbo is still an idea, but I'd rather have a choice of when to buy 93 octane. Also, I hear with a turbo you can't just drive to the grocery store and back without waiting for the car to cool down before restart? I dunno, I've never owned a turbo. :-/ Reply With Quote 12-27-2007, 12:00 AM #9 Ben View Profile View Forum Posts Private Message View Blog Entries Same In The End Join Date Aug 2006 Location Reno, NV Posts 4,402 Thanks  20 Thanks  332 Thanked in295 Posts Total Contributions For
Ben     $ 10.00 ^ Turbo timers allow the car to run and shut off automatically so you don't have to sit and wait. Custom Illuminated MR2 Name Plates

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Reply With Quote 12-27-2007, 12:31 AM #10 Gairloch View Profile View Forum Posts Private Message View Blog Entries Dreaming of apexes Join Date Aug 2005 Location Minneapolis, MN Posts 5,302 Thanks  139 Thanks  301 Thanked in268 Posts Blog Entries4 Total Contributions For
Gairloch     $ 0.00 What do you do is add a little pepsi to the oil in order to prevent coking ... "Inside the car, the world beyond the driver's immediate horizon ceases to exist. Alone with the solitude of his desire, survival sense numbed by the speed, he's outrun the mediocrity of the outside world, slipped the shackles it tries to clamp on us all. He is running free, chased only by a fear of failure, for failure is to risk ejection into the real world." ~Mark Hughes


1mz build and install blog Reply With Quote 12-27-2007, 01:23 AM #11 mrturrari View Profile View Forum Posts Private Message View Blog Entries I Join Date Mar 2005 Location Salt Lake City, Utah Posts 677 Thanks  2 Thanks  182 Thanked in115 Posts Total Contributions For
mrturrari     $ 0.00 Originally Posted by scooterman but a dry shot does not introduce more fuel through the nitrous system. The engine would run lean without a fuel modification. Doing a fuel mod on a 5s to only work when firing a shot of nitrous would be pretty difficult would it not?

a wet system would spray more fuel through the intake a long with the nitrous correct? There is no way any Nitrous system would work without adding fuel somewhere. The engine would just go boom when you started spraying. Wet shots add fuel through their own injector before the throttle body. Dry shots add fuel by increasing the pressure at the fuel rail so it is added by using your current injectors. Because of that dry shots are safer because there is less to go wrong and you get more even fueling between cylinders. There are some other good threads here in the Nitrous forum that give more details. Reply With Quote 12-27-2007, 01:44 AM #12 mrturrari View Profile View Forum Posts Private Message View Blog Entries I Join Date Mar 2005 Location Salt Lake City, Utah Posts 677 Thanks  2 Thanks  182 Thanked in115 Posts Total Contributions For
mrturrari     $ 0.00 Originally Posted by Gairloch What do you do is add a little pepsi to the oil in order to prevent coking ... I'm going to have to try that.

Originally Posted by Mister22u This is all very interesting. I'm now thinking of a 50hp wet shot.

The turbo is still an idea, but I'd rather have a choice of when to buy 93 octane. Also, I hear with a turbo you can't just drive to the grocery store and back without waiting for the car to cool down before restart? I dunno, I've never owned a turbo. :-/ You only need to let it cool down if you have had it under heavy load for a decent period of time. That will only be when you have been driving aggressively more then a pull or two or you have been driving on the freeway. Also you can immediately start it nothing wrong with that. You just don't want to turn it off with a blazing hot turbo and let the oil cook in there. Just driving normally a few blocks will cool it down so most of the time depending on where you live and where you drive you don't even have to worry about it.

The great thing about turbos is they are always there and ready to go. No bottles to fill and keep warm. Reply With Quote 12-27-2007, 01:54 AM #13 phantomMR2 View Profile View Forum Posts Private Message View Blog Entries Cage Fighter Join Date Jan 2007 Location Louisville Posts 806 Thanks  17 Thanks  4 Thanked in4 Posts Total Contributions For
phantomMR2     $ 0.00 Yeah, he is right. You only have to let the turbo cool down if you are racing or aggressively boosting. It's almost like a normal car, as you would. Go Turbo man its fun and worth it. I paid about $2000 for my swap to the genII 3sgte swap. Cant go wrong with the jdm swap. Reply With Quote 12-27-2007, 05:06 PM #14 Mister22u View Profile View Forum Posts Private Message View Blog Entries Mad Skillz Join Date Jul 2007 Location Morgantown, WV Posts 199 Thanks  12 Thanks  5 Thanked in5 Posts Total Contributions For
Mister22u     $ 10.00 Originally Posted by phantomMR2 Yeah, he is right. You only have to let the turbo cool down if you are racing or aggressively boosting. It's almost like a normal car, as you would. Go Turbo man its fun and worth it. I paid about $2000 for my swap to the genII 3sgte swap. Cant go wrong with the jdm swap. Hmm, that's the route I was thinking.

but like I said, the 5sfe is still fun for me; if it gets boring in a year or so, I'll buy me a JDM. Reply With Quote 12-27-2007, 05:35 PM #15 MR2SW22 View Profile View Forum Posts Private Message View Blog Entries that's what she said Join Date Aug 2007 Location Diamond Bar, CA Posts 1,980 Thanks  54 Thanks  27 Thanked in26 Posts Total Contributions For
MR2SW22     $ 0.00 Originally Posted by Mister22u Hmm, that's the route I was thinking.

but like I said, the 5sfe is still fun for me; if it gets boring in a year or so, I'll buy me a JDM. $20 says your 16 years old or at least still a teenager? im just curious.

the 2nd gen jdm swap is awsome, i'll take boost over nos anyday, just run stock boost driving around town, and when you want real power crank up the boost and you can add anywhere from 10hp-500hp off of boost. mostlikely you'll only get 70-100hp but at least you won't have to call a tow truck to get your mr2 home after a run at the drag strip. 1990 ST-185 (current money pit)
2013 Camaro LS 6-sp (daily)
1991 MR2 Turbo X2 (sold)
1990 All-Trac (sold)
2005 Yamaha R6 (sold) Reply With Quote 12-27-2007, 05:39 PM #16 Mister22u View Profile View Forum Posts Private Message View Blog Entries Mad Skillz Join Date Jul 2007 Location Morgantown, WV Posts 199 Thanks  12 Thanks  5 Thanked in5 Posts Total Contributions For
Mister22u     $ 10.00 Originally Posted by MR2SW22 $20 says your 16 years old or at least still a teenager? im just curious. Why would you say that? Should I be offended? Hell, nothing $20 couldn't remedy.

Donate it to the Forum. Reply With Quote The Following User Says Thank You to Mister22u For This Useful Post: FreeFall (03-24-2010) 12-27-2007, 06:24 PM #17 Mister22u View Profile View Forum Posts Private Message View Blog Entries Mad Skillz Join Date Jul 2007 Location Morgantown, WV Posts 199 Thanks  12 Thanks  5 Thanked in5 Posts Total Contributions For
Mister22u     $ 10.00 I apologize; I should be happy that someone is taking an interest in me and my car.

I'm 30 years old. I am an attorney. I picked the MR2 over my other choices of cars b/c I didn't want to spend $10K on a project (I want to spend $10K on finishing a project).

I used to drag race a lot. I had one of the fastest all-motor Saturn SC2's, probably in the country (at 15.2 seconds 1/4 mile).

Anything else you would like to know, feel free to ask. ;-) Reply With Quote 12-27-2007, 06:25 PM #18 MR2SW22 View Profile View Forum Posts Private Message View Blog Entries that's what she said Join Date Aug 2007 Location Diamond Bar, CA Posts 1,980 Thanks  54 Thanks  27 Thanked in26 Posts Total Contributions For
MR2SW22     $ 0.00 Originally Posted by Mister22u Why would you say that? Should I be offended? Hell, nothing $20 couldn't remedy.

Donate it to the Forum. Don't be offended unless you want to. i just don't think most mature adults think it's a great idea to pop their stock motors with a bunch of nos. but then again you could be a rich adult who doesn't care about money, or a rich kid who doesn't care about money. i would like to know the limits of a stock 5s, and stock 3s on nos cause im curious, but not at the expense of someone will just enough money to afford the nos setup, that would suck, but if you got the $$ go for it i say, just don't forget to a video of it 1990 ST-185 (current money pit)
2013 Camaro LS 6-sp (daily)
1991 MR2 Turbo X2 (sold)
1990 All-Trac (sold)
2005 Yamaha R6 (sold) Reply With Quote 12-27-2007, 06:30 PM #19 Mister22u View Profile View Forum Posts Private Message View Blog Entries Mad Skillz Join Date Jul 2007 Location Morgantown, WV Posts 199 Thanks  12 Thanks  5 Thanked in5 Posts Total Contributions For
Mister22u     $ 10.00 Originally Posted by MR2SW22 i would like to know the limits of a stock 5s, and stock 3s on nos cause im curious, but not at the expense of someone will just enough money to afford the nos setup, that would suck, but if you got the $$ go for it i say, just don't forget to a video of it That was my intent for asking the question. I was curious to see what others had done with the 5SFE.

I recall the KA24DE (240SX, one of my old choices before I bought an SC2) Could take a LOT of nitrous for some reason. It was a common upgrade for that engine.

do I want to be the 5SFE guinea pig? I know my wife doesn't want me to be! LOL Reply With Quote 12-27-2007, 06:40 PM #20 MR2SW22 View Profile View Forum Posts Private Message View Blog Entries that's what she said Join Date Aug 2007 Location Diamond Bar, CA Posts 1,980 Thanks  54 Thanks  27 Thanked in26 Posts Total Contributions For
MR2SW22     $ 0.00 Originally Posted by Mister22u I apologize; I should be happy that someone is taking an interest in me and my car.

I'm 30 years old. I am an attorney. I picked the MR2 over my other choices of cars b/c I didn't want to spend $10K on a project (I want to spend $10K on finishing a project).

I used to drag race a lot. I had one of the fastest all-motor Saturn SC2's, probably in the country (at 15.2 seconds 1/4 mile).

Anything else you would like to know, feel free to ask. ;-) HEHE, have you ever dragged anything faster than 15.2? just asking cause a stock jdm 2nd gen swap will put you in the low 14's with a great driver, and a 3rd gen stock will put you in the 13.7 range, just imagine a jdm swap with mods, you can run 12's on the street and 11's on the track with good tires and the proper mods and not risk popping the motor with Nos. 1990 ST-185 (current money pit)
2013 Camaro LS 6-sp (daily)
1991 MR2 Turbo X2 (sold)
1990 All-Trac (sold)
2005 Yamaha R6 (sold) Reply With Quote Page 1 of 4 1234 Last Jump to page: « Previous Thread | Next Thread » Posting Permissions You may not post new threads You may not post replies You may not post attachments You may not edit your posts   BB code is On Smilies are On [IMG] code is On [VIDEO] code is On HTML code is Off

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