nitrous limits [Archive] - SR20 Forum

: nitrous limits


YounG Se-R
10-15-2007, 10:24 AM
I wa *** wondering what's pushin the limits with sprayin a sr20 highport...?so far its running i/h/e..b.c cams stg3,s&r.lifters valves.walbro 255 lph,370cc injectors,and msd blaster coil,ground wires,pullies *** basic setup...and debaiting on wot,directport...it spins like crazy without juice I could imagine with it....thanks in advance

AaroNX
10-15-2007, 12:18 PM
You can run plenty just be sure to get it dyno tuned. I have the same cams and it's causing me to run lean up top. I'm not going to spray it again till I can tune it on a dyno with a wideband to make sure it's safe.

coryb13ser
10-17-2007, 03:05 AM
i would think they usually say a 100shot direct port is safe on a stock motor, ofcourse it its running right and tuned.

AaroNX
10-17-2007, 11:25 AM
100 shot direct port is safe on a stock motor. That's how mine used to be. It is however NOT safe on an untuned motor with BIG cams. I've learned this the hard way lol.

Born2Ride
10-18-2007, 09:32 PM
Im spraying a 125 wet shot on my sr20 with h/i/e, BC cams and greddy VS's,bumped the fuel pressure with 15* timing and no problems so far.Iv'e went from a 50,75,100,and now 125.Im running a WOT switch PLUS a button on the shift knob so that it wont spray until I choose,usally by top of 1st gear.Best pass with a 1.87 60 ft. was a 7.982 in the 8th.I wouldnt recommend this on a daily driver but I was just pushin my limits to see how fast I could go on NOS before I started my turbo install.

nO PrEssUrE
10-27-2007, 12:21 PM
Im spraying a 125 wet shot on my sr20 with h/i/e, BC cams and greddy VS's,bumped the fuel pressure with 15* timing and no problems so far.Iv'e went from a 50,75,100,and now 125.Im running a WOT switch PLUS a button on the shift knob so that it wont spray until I choose,usally by top of 1st gear.Best pass with a 1.87 60 ft. was a 7.982 in the 8th.I wouldnt recommend this on a daily driver but I was just pushin my limits to see how fast I could go on NOS before I started my turbo install.

so im assumin that will be like 13's highs or real low 14's am i wrong ???

Born2Ride
10-28-2007, 12:41 AM
so im assumin that will be like 13's highs or real low 14's am i wrong ???I have never ran 1/4 mile, only 8th.But most people tell me that it should be around a mid 12 in the 1/4.

jonwepa
11-17-2007, 12:00 PM
Atleast a mid 12...

se-riousclassic
11-18-2007, 02:08 AM
so im assumin that will be like 13's highs or real low 14's am i wrong ???

If you take the eighth mile time and multiply it by approx. 1.55 you can get a pretty good quarter mile time estimate. Low 12's it is.