Adding water after dyno tuning - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to   Members

Methanol/Water Injection Place to talk about meth/water injection.

LinkBack Thread Tools Search this Thread
Old 05-12-2011, 12:53 AM   #1
Elite Member
Thread Starter
iTrader: (13)
Join Date: Dec 2009
Location: Fraser Valley, British Columbia
Posts: 2,502
Total Cats: 13
Default Adding water after dyno tuning

What kind of nozzle size and pump pressure would be ideal for someone wanting to add just a little bit of protection after having already been tuned without WI. I am going to be running some events in the USA and the gas is quite different and I want to add a bit of safety to my set up. Rotrex'd soon to be 280whp ish hopefully (tuning is tomorrow, but I never started looking into WI until today :O)

Back when I was int he RX7 scene a lot of guys added WI to stock FD's to help keep IAC temps down and add some protection. All on the stock ECU without tuning for it. So I imagine the same can be done here.
falcon is offline   Reply With Quote
Old 05-12-2011, 02:04 AM   #2
Supporting Vendor
iTrader: (31)
Savington's Avatar
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 13,223
Total Cats: 784

As small as you can. Pump pressure is fairly standardized at 150psi, and typically the smallest nozzle available is 3gph. Go with that, or a 2gph if you can find it.
Savington is offline   Reply With Quote
Old 05-13-2011, 08:54 AM   #3
Junior Member
Join Date: Jun 2009
Location: Naka, Japan & Georgetown, Texas
Posts: 128
Total Cats: 0

Most new kits will have a 150-250 psi adjustable bypass pump. You can find nozzles down to .5 gallons per hour. I don't know where to tell you to start. The company you buy the kit from should though.
Dust is offline   Reply With Quote
Old 05-13-2011, 09:05 AM   #4
Elite Member
iTrader: (24)
kotomile's Avatar
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40

I pulled the WI fuse when I dynoed. DO basic kit, 3 gph nozzle.

I was/am basically using it for the same reason you are. My timing isn't tuned for it, so it's just extra safety. Engine's lasted a few years now at 14 psi (knock on wood).
kotomile is offline   Reply With Quote
Old 05-31-2011, 11:51 AM   #5
Junior Member
iTrader: (1)
Join Date: Jul 2010
Location: Louisville, KY
Posts: 196
Total Cats: 0

is where i picked up some nozzles.
PatrickB is offline   Reply With Quote
Old 05-31-2011, 05:02 PM   #6
Elite Member
iTrader: (15)
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 25

The external mount Devil's Own nozzles linked to above are nice. That is what I use.
ZX-Tex is offline   Reply With Quote
Old 05-31-2011, 05:16 PM   #7
Senior Member
iTrader: (8)
Join Date: Sep 2010
Location: misery
Posts: 1,130
Total Cats: 8

i've had do in the past.
nice kits.
good prices.
i'd go with one of their smaller nozzles.
phillyb is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Why dynos should plot Torque divided by MAP JasonC SBB ECUs and Tuning 11 10-27-2015 04:56 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 11:04 AM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 09:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 09:30 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
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
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 05:00 AM.