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Setting up for a 200 shot...

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Setting up for a 200 shot... Register Help Home Forum New Posts FAQ Calendar Community Groups Reported Items Top Posters Forum Actions Mark Forums Read Quick Links Today's Posts Contribution Actions Contribute Blogs What's New? Contribute Advanced Search Forum Toyota MR2 Generations MK 2 MR2 - SW20 MK2 Stand-Alone EMS and Nitrous Discussion Setting up for a 200 shot...
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. Results 1 to 9 of 9 Thread: Setting up for a 200 shot... Thread Tools Show Printable Version Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 08-23-2007, 09:45 AM #1 MR2TuRbZ View Profile View Forum Posts Private Message View Blog Entries Visit Homepage Local V8 Killer Join Date Jun 2005 Location Indianapolis Posts 550 Thanks  8 Thanks  7 Thanked in7 Posts Total Contributions For
MR2TuRbZ     $ 0.00 Setting up for a 200 shot... Alright, i'm still on the stock CT26, but i have a fully built bottom end ready to take some abuse.

I have everything ready to go except the fuel system. I have a Bosch 044 fuel pump which will flow more than enough. Question is, can i just install that into the stock fuel system and tap off of it for the nitrous fuel side? or do i have to do an entire fuel system?


I really just want an 11 sec pass before the year is over so i was going to start out with a 75 shot and just work my way up from there all the way up to a 200 shot if i have to.


Thanks guys!
-Damon '91 Turbo MR2
13.51 @ 104 spinning with a 1.999 60ft
'92 Turbo MR2 (Sold)
13.92 @ 97 DD, fully loaded leather T-Top
'90 Celica Alltrac (Sold) Reply With Quote 08-23-2007, 10:40 AM #2 MR2liter View Profile View Forum Posts Private Message View Blog Entries myspace.com/sergeymr2 Join Date Feb 2006 Location Dallas TX Posts 367 Thanks  5 Thanks  5 Thanked in5 Posts Total Contributions For
MR2liter     $ 0.00 300 shot. !! Sergey
Reply With Quote 08-23-2007, 10:47 AM #3 MR2TuRbZ View Profile View Forum Posts Private Message View Blog Entries Visit Homepage Local V8 Killer Join Date Jun 2005 Location Indianapolis Posts 550 Thanks  8 Thanks  7 Thanked in7 Posts Total Contributions For
MR2TuRbZ     $ 0.00 i would if i had the solenoids to do it! they max out at 200 '91 Turbo MR2
13.51 @ 104 spinning with a 1.999 60ft
'92 Turbo MR2 (Sold)
13.92 @ 97 DD, fully loaded leather T-Top
'90 Celica Alltrac (Sold) Reply With Quote 08-23-2007, 11:56 PM #4 TomsMR2 View Profile View Forum Posts Private Message View Blog Entries Still not heraldo. Join Date Feb 2005 Location Pineapple under the sea Posts 6,296 Thanks  20 Thanks  602 Thanked in456 Posts Blog Entries1 Total Contributions For
TomsMR2     $ 0.00 stepped, or you just want BAM, 200! ?

thats a big shot.. rickyb posted up a great article about why you dont want to be running a monster pump when you dont need it. on a ct26, you're not going to need it, but for that shot you will.. best option would be a dedicated pump and small tank with 100+ octane in it. Reply With Quote 08-24-2007, 05:27 PM #5 Enthalpy View Profile View Forum Posts Private Message View Blog Entries EMS Harmonizer Join Date Feb 2006 Location Denver, CO Posts 1,228 Thanks  8 Thanks  58 Thanked in45 Posts Total Contributions For
Enthalpy     $ 0.00 If you plan on a 200 shot, you had better have race gas in there! You will blow that thing in short order without proper timing retard.

As for the pump, it might be time for some dedicated lines, as the pressure might drop at system activation. It's a simple test. Force the pump into high mode (you should already, and you should have an aftermarket rail). With the motor off, activate the system so it sprays into a bucket. Monitor the fuel pressure at the stock rail. Reply With Quote The Following User Says Thank You to Enthalpy For This Useful Post: MR2TuRbZ (08-25-2007) 08-25-2007, 02:00 PM #6 MR2TuRbZ View Profile View Forum Posts Private Message View Blog Entries Visit Homepage Local V8 Killer Join Date Jun 2005 Location Indianapolis Posts 550 Thanks  8 Thanks  7 Thanked in7 Posts Total Contributions For
MR2TuRbZ     $ 0.00 Originally Posted by Enthalpy If you plan on a 200 shot, you had better have race gas in there! You will blow that thing in short order without proper timing retard.

As for the pump, it might be time for some dedicated lines, as the pressure might drop at system activation. It's a simple test. Force the pump into high mode (you should already, and you should have an aftermarket rail). With the motor off, activate the system so it sprays into a bucket. Monitor the fuel pressure at the stock rail.
good call, i will be trying that... i decided to install the monster fuel system i have laying on the floor and just pray i can tune it


Bosch 044 Fuel pump in tank feeding a surge tank in engine bay, then a Weldon 2035a Fuel pump feeds the wolfkatz TFFR with 1680cc injectors... still on a CT26

I may try and snag some 450cc top feed DSM injectors until the 35r or 42r goes on the car '91 Turbo MR2
13.51 @ 104 spinning with a 1.999 60ft
'92 Turbo MR2 (Sold)
13.92 @ 97 DD, fully loaded leather T-Top
'90 Celica Alltrac (Sold) Reply With Quote 08-25-2007, 10:32 PM #7 Enthalpy View Profile View Forum Posts Private Message View Blog Entries EMS Harmonizer Join Date Feb 2006 Location Denver, CO Posts 1,228 Thanks  8 Thanks  58 Thanked in45 Posts Total Contributions For
Enthalpy     $ 0.00 With the right tuning tools (reliable timing retard like an EMS, ability to adjust fueling and a dyno), you can tune a nitrous system very well. Without some of these tools, you really are shooting in the dark.

Nitrous has a reputation for blowing motors not because it's difficult or dangerous to tune, but because people half-ass the engine management thinking nitrous is cheap power.

1680 cc injectors will be nearly impossible to idle. It will be completely, utterly overkill with dramatic drawbacks. I recommend you size your injectors approprite to the need. I would go with the 450s until you need more. You will definitely need an EMS to control injectors that big with nitrous. Reply With Quote 08-26-2007, 05:14 PM #8 MR2TuRbZ View Profile View Forum Posts Private Message View Blog Entries Visit Homepage Local V8 Killer Join Date Jun 2005 Location Indianapolis Posts 550 Thanks  8 Thanks  7 Thanked in7 Posts Total Contributions For
MR2TuRbZ     $ 0.00 I'm on an AEM EMS... i plan to switch over to straight ethanol next season, hence the 1680cc injectors. '91 Turbo MR2
13.51 @ 104 spinning with a 1.999 60ft
'92 Turbo MR2 (Sold)
13.92 @ 97 DD, fully loaded leather T-Top
'90 Celica Alltrac (Sold) Reply With Quote 08-26-2007, 06:54 PM #9 RickyB View Profile View Forum Posts Private Message View Blog Entries Visit Homepage Automotive Cartographer Join Date Dec 2005 Location California Posts 221 Thanks  0 Thanks  127 Thanked in34 Posts Total Contributions For
RickyB     $ 0.00 Nitrous is a hungry beast that must be fed and cared for properly. If not, it will literaly feed on your forged piston and your block. Free oxygen at high temperaures WILL bind with something, regardless of whether it is hydrogen, carbon or iron.

Is this nitrous injected through a single injector before the throttle or directly into each runner? If the former, keep it to a 50 shot maximum unless you have an intake manifold which is wet-tested to flow very evenly. The stock manifold is not that great at flowing air evenly, much less fuel and nitrous. This is not my theory. I've seen the unfortunate results of tossing in too much nitrous through the stock intake manifold. You end up with two perfect cylinders (1, 4) and two useless ones (2, 3).

An EMS AND DIRECT PORT INJECTION is a must for any serious nitrous use.

Using a 200 shot of nitrous is also not going to give the desired results on a CT26 turbo. Nitrous is a great way to get more oxygen molecules into the combustion chamber, but once they separate from the nitrogen and bind with fuel, the resulting exhaust is equivalent in volume to that produced with atmospheric oxygen. The turbine nozzle area of the CT26 is simply too restrictive to allow much more that ~275rwhp of exhaust to flow out, regardless of how the components of all that exhaust were put into the cylinder. You may as well just shove a potato up your tailpipe as use a CT26 with that much nitrous.

Get a big turbo setup, size the fuel system appropriately for your power needs and then you will find that you can hit your 1/4 mile goals without having to play around with fire. Reply With Quote « 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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