Just wondering whats the biggest dry shot on my ls vtec setup and be safe.
id say 50 would be the biggest dry shot i would ever push… now if u went wet shot then tune it right and skies the limit. well as high as u have the balls for.
there was a guy down here with a stock ls on some stupid shot…like 150 or something…damn that thing moved!
my buddy is running the b20 vtec with a 75 shot and has no problems, and that is on the dry kit too.
It depends heavily on your setup. If you have aftermaket pistons and rods, spray al least a 100 shot. on stock internals stay under a 100 shot. I’d use a 100shot dry setup with 345cc injectors. Buy a wideband and save your engine.
what happens if i spray under a 100 shot on aftermarket internals? will my ride blow up? why do you need such large injectors? i don’t understand. doesn’t the fuel pressure raise to accommodate for the nitrous being injected?
no u can run under 100shot and the car will just be slow…with forged internals run a huge shot thats why they are there. also yes it will bump pressure but when u run a huge shot you wont get the fuel u need…stock injectors are only 240cc which wont make lots of power…if u dont get bigger injectors youll blow ur engine.
Think about it, spraying under 100 would be less nitrous, why would that blow it up instead of more??? Like civicflnum1 said, you will need bigger injectors to accomodate all that nitrous. Remember, all nitrous does is allow you to run more fuel. Spraying more than your fuel system can support will cause it to run lean, which will result in overheating, detonation, and/or burning up a piston. If you really want to try it out, start with a small shot, like 40 or so and gradually increase it till you break something. :giggle: :bang:
Get your car tuned on 345cc-450cc injectors. then buy a wideband o2 sensor, retard your timing 4-6 degrees(depending on comp. ratio), put the 2 suggested jets(100hp) in the dry kit. do a 3rd or 4th gear run spray at about 3.5k-4k run it to your shiftpoint, making sure the wideband dosn’t read anything leaner than 12:1. If your lean when spraying up the fuel jet, If your too rich spraying lower the fuel jet. do a couple runs make sure it stays pretty rich. then your good to go.
You must be assuming in ^that^ scenerio, there is more fuel being added by means other than the injectors? Otherwise your post doesnt make sense.
ok your post regards a wet kit…he said dry…but atleast u posted info
Why 3rd and 4th gear? I use mine from 1st-4th gear. It is tps controlled and I got the best track time when I did this.
3rd or 4th gear takes longer youll be able to see if your leaning out…you tune it in 3rd n 4th that way if your lean n u spray in first you dont blow the fuck up.
before you post comments that don’t make sense, have you ever used a dry kit? there are 2 jets, 1 for the nitrous, 1 for the FPR. The 1 for the FPR regulates how much pressure is added to the FPR. This jet, in the dry setup, regulates fuel pressure when spraying. The bigger the jet the more fuel pressure is added. you need the bigger injectors because the stock 240cc injectors won’t support much more than 200whp. Therefore you would run bigger injectors so you don’t run out of gas(while spraying). When you run a 75 shot or less the stock injectors should be sufficent unless, your making more than 170whp without the spray.
this was for tunning purposes only. once you have a nice A/F ratio while spraying, you can spray any gear.
Hmmm, forgot about the fpr jet. I too thought you might have been refering to a wet kit or something. Now it makes sense. My bad.
Damn…I just got punked again. :gay:
I’m going to be serious for a second. This is only true at stock fuel pressure, to use the dry nitrous setup you do not need larger injectors. You are just giving yourself more work. Rather than raising fuel pressure or using a wet nitrous setup, you can add more fuel through your ecu. I suggest you take Mr. juice’s advise and buy some larger aftermarket injectors, but make use of the larger injectors by adding more fuel with a rom editing program that supports nitrous or a nitrous standalone.
i think i might convert my direct port setup over to a dry setup when i build my new motor. less crap to hide.