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-   -   20b 80mm turbo, water injection options! (https://www.rx7club.com/auxiliary-injection-173/20b-80mm-turbo-water-injection-options-1066016/)

Monsterbox 06-19-14 10:54 AM

20b 80mm turbo, water injection options!
 
Hello guys,


Looking for some constructive criticism on the new setup, thanks!


Last setup:

13brew, 550/1680, 67mm, 18-25psi, 480-525rwhp, CM7 - 700CC 50/50, stock coils, twin power.

^Clean power, ignition breakup only if I went lower than 11.0AFR


New Setup:

20b, SP, BW s480, ls1 coil/igniter ignition, r7420 plugs, 1680/850

My goal is to stay under 20psi. I don't need to make that much horsepower in the immediate future. Somewhere around 650-700hp will be good for now. GOAL IS SAFETY/LONGEVITY on pump gas.

I'm a huge proponent of AI after seeing how IAT's dropped like a rock. What size nozzle would you recommend ? This turbo should barely be in its efficiency range so I don't want to rob too much power with AI.

I was thinking logically, go up another 50% on AI. Somewhere around 1000cc? Will LS1 coils handle this amount of fluid and boost?


Thanks!!!!

Narfle 06-19-14 12:16 PM

in for crazy setup

Speed of light 06-23-14 04:31 PM

I would suggest starting right where you're at. Add more if you see knock. (More AI than you have will likely hurt power a bit.) Ignition should be okay--just close gaps down a bit if you encounter misfire. I would highly recommend a failsafe for the AI if you don't already have one.

Monsterbox 03-30-15 12:13 PM

Result:

720rwhp 589rwtq frying the tires on this setup at 20psi Thumbs up to water

Gilgamesh 04-01-15 04:16 PM

Got any pics?

Monsterbox 04-02-15 11:44 AM


Originally Posted by Gilgamesh (Post 11894568)
Got any pics?


Here it is on low boost

rx72c 04-05-15 02:02 AM

so did you increase the quantity of water/meth?

Monsterbox 06-05-15 09:42 AM

Yes, 1000cc, but honestly I haven't even used the car on over 12psi so its not even in action yet. It did however workout great on dyno, no misfire


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