Boost and N2O concerns
 

I have a 1999 civic ex with a greddy turbo kit and also a zex nitrous kit as well. after the turbo went on, I havent ran my nitrous at all, in fear of detonation in the cylinders. My fuel system is pretty modified (fuel pump, FPR, fuel rail, injectors) My question is, if i invest into getting new rods, pistons and a cam, will I be able to run the nitrous along with the turbo and possibly higher amounts of boost (currently at 7psi)

Re:Boost and N2O concerns
 

Whats the point? Unless you have serious turbo lag then there is no reason to use nitrous with your turbo, just up the boost.

Re:Boost and N2O concerns
 

IF you build your motor you can run both, just set a good A/F for the boost and invest in a wet nitrous kit and it'll be fine. The thing about using both at the same time is that the nitrous causes the boost to go crazy. We had a 115 shot on my buddy's SHO with the wastegate set at 15psi, as soon as you would spray it the boost would spike like crazy. Nitrous + Boost = ------- badass

Re:Boost and N2O concerns
 

and it also acts like water injections cuz the n2o is so cold. ;)

Re:Boost and N2O concerns
 

i had that setup in integra.. at first it's ok, the shot was so low that i only used it for take off. what made it worse was it would spin out like crazy... not worth it. but, it does look really cool if you use it as a fmic spray. intimidates others.

Re:Boost and N2O concerns
 

But thats such a waste of money. If I'm paying $45.00 for 10lbs of nitrous I wouldn't use it to cool my intercooler. At the least I would run a 20 shot into the motor. Thats like literally just pissing money away

Re:Boost and N2O concerns
 

When I use the nitrous i can feel it, but it does work better at speeds under 90mph, in top end its useless. Purging it cool too, lol, rev up and listen to the BOV and then purge...intimidation ;)

Re:Boost and N2O concerns
 

Since the EX turbo runs ----- CFMs, all you have to do is get the car tuned properly and have the right amount of fuel and you will be able to run both. Are you injecting the nitrous before compression or after?

Re:Boost and N2O concerns
 

I believe before, its a ZEX dry system (i had it before the turbo) so its injected through the intake.

Re:Boost and N2O concerns
 

I was running nitrous and boost back when i had my stock turbo. I was getting 3 psi of creep with a 50 shot and a power increase of 75 RWHP ( i know several people who have dynoed a 80rwhp increase from a 50 shot). nitrous and boost is amazing, along with the usual effects of nitrous you get an awesome intercooling effect.

Re:Boost and N2O concerns
 

What are you using for fuel management? What I would say is get one of those nitrous programs that sets it to open the throttle fully and then inject the nitrous so that you instantly from take off are at 3-5 psi then it stops the nitrous until you shift (like it only activates at WOT, and 3200 or below RPM).

Re:Boost and N2O concerns
 

The N2O only runs at full throttle, it shuts off ince i let up....I was lookin inton gettin a TPS, but lack of cash

Re:Boost and N2O concerns
 

I love Zex's dry kit ( 9 bottles of 75shot on my D15B2 with 155K miles and it never blew up ), BUT with a boosted car it's almost common sense to use a wet kit that doesn't add anymore "load" to the injectors than they are already dealing with. Zex makes a wet kit now, but I haven't heard any reveiws of it.

I'd presonally just stick with a 35shot, and use a Hobbs presure switch to activate it at like 5psi. The greddy turbo is so small it doesn't need help spooling, it needs help keeping up with the engine at high speeds.

12psi greddy kit, and 35shot would make more power than 90% of civics could use.

spin spin spin, shift, spin spin spin, shift, spin.

Hope you gotta good clutch and extra tranny hanging arouind too... D-series trannies don't last long under 300whp cars...

Re:Boost and N2O concerns
 

Hahaha Right now I'm only runnin at 7psi, and a 55 shot of ZEX. you think i should get a wet kit? Can I get liek an upgrade kit or do I gotta buy a whole new kit? Oh yeah about the tranny....what i have is a sin...automatic...yeah yeah, but thats all I could afford was an EX auto, I had to get outta a lease....something i will NEVER EVER EVER do again