Why do they say to shoot nitrous like 8 inches away from TB... - Honda Prelude Forum

bolivianfuego · 10-29-2003, 08:39 PM

wouldnt it be better if shot from like as far as you could fom the TB?

MugenPoweredLude · 10-29-2003, 08:45 PM

so it has a chance to atomize correctly...not too much nitrous(mounted to close to TB) and not too little nitrous(mounted away from TB)

someone correct me if im wrong

alphajesse · 10-29-2003, 11:47 PM

It's more to ensure even distribution of n2o to each cylinder.

J01SH · 10-30-2003, 05:40 AM

Quote:

It's more to ensure even distribution of n2o to each cylinder

Correctomndo............close enough for even distribution....far enough away to allow it to atomize a bit.

achemze · 10-30-2003, 09:59 AM

Its so you dont blow your titanium valve springs, and ball bearing turbos while racing an rx7 and a honda civic that are side-by-side

Someone beat me to me to it, but you need to allow the mixture to atomize(or dispurse in the air and expand) so that you dont get a super *bewm* or a minimal *bewm*.

But how would direct port be better than? The fact that you're using more n2o?

J01SH · 10-30-2003, 10:18 AM

With Direct port you are mixing the fuel and N20 Directly at the cylinder and each cylinder has it's own jet so.....no nead for even distribution. I don't know if DP jets atomize better or not maybe Laughin' can jump in.

laughin2.2 · 10-30-2003, 11:14 AM

You use the same nozzles for single fogger and DP setups. The atomization should occur pretty much right out of the nozzles. If you think about it you've got alot of nitrous coming out of a hole the size of a pin. To distribute evenly this nitrous has to spread out through the intake in a < shape. If you just had one thin line of nitrous atoms running through intake (ie. ___) there would be some serious distribution issues. 8 in. gives the nitrous a chance to spread out evenly and also cool down the intake air. I guarantee that there is more to it, but I'm not sure how long it takes for nitrous to break down into an unusable form, which could be a problem if you mounted the nozzle at too great of a distance from the combustion chambers.

bolivianfuego · 10-30-2003, 11:32 AM

Ok, i came to the realization that it doesnt really matter how far it sprays the nitrous into the TB, on dry kits at least, cause i think zex released a airfilter where it has it so you install the nozzle right there at the end of the filter. SO i mean if zex isnt moutning it 8inches away but farther, then it cant be that bad.

axion68 · 10-30-2003, 12:16 PM

Quote:

Originally posted by bolivianfuego
Ok, i came to the realization that it doesnt really matter how far it sprays the nitrous into the TB, on dry kits at least, cause i think zex released a airfilter where it has it so you install the nozzle right there at the end of the filter. SO i mean if zex isnt moutning it 8inches away but farther, then it cant be that bad.

I would recommend 8 inches, when you mount it further down the intake it does mix with the air better but the shot isn't as strong.

J01SH · 10-30-2003, 01:58 PM

I mounted mine right at the bend in My CAI......pain in the ASS but it was easy to hide

I seemed to get a deceent shot from it.

CTPRELUDE · 10-30-2003, 03:19 PM

^ Same here. I mounted it right at the bend.

laughin2.2 · 10-31-2003, 12:11 AM

I wouldn't base my nitrous kit off of what ZEX does, but running the nozzle along ways away from the TB won't blow the motor.

axion68 · 10-31-2003, 12:17 AM

Quote:

Originally posted by laughin2.2
I wouldn't base my nitrous kit off of what ZEX does, but running the nozzle along ways away from the TB won't blow the motor.

nope, if anything it might be a little safer. However none of use with the nozzle 8" or so away from the TB haven't had any problems, so take your pick.

red98lude · 10-31-2003, 09:42 PM

Quote:

Originally posted by laughin2.2
I wouldn't base my nitrous kit off of what ZEX does, but running the nozzle along ways away from the TB won't blow the motor.

ZEX always runs on the safe side. Wreckdiver went through many positions and noticed no difference on the butt dyno. I tried two and notice no difference either. The rule seems to be the closer the better but mine is about 8 inches away and I am happy with the results. My whp and TQ ratings are higher than my shot size with my NOS dry kit and an automatic.

stevej37 · 11-01-2003, 06:05 PM

I use the Zex filter with a 65 shot nozzle built in...works great!! If wanting to remove kit, just need to switch filter back to original, no drilling needed. Zex claims more airflow with the air amplifier...check out their website. I would highly recommend it, along with a bottle warmer to increase pressure.

SkyHighBB2 · 11-07-2003, 03:11 PM

Quote:

Originally posted by stevej37
I use the Zex filter with a 65 shot nozzle built in...works great!! If wanting to remove kit, just need to switch filter back to original, no drilling needed. Zex claims more airflow with the air amplifier...check out their website. I would highly recommend it, along with a bottle warmer to increase pressure.

how much power increase is there with that type of kit? you dont get the full 70 out of a 70shot do you?

bolivianfuego · 11-07-2003, 03:38 PM

Eh i would stick with a NX single fogger kit, those are rated to the ground. even more sometimes.

stevej37 · 11-07-2003, 07:34 PM

Don't know actual hp increase with zex kit...but I do know that power gain was real good with 65 shot, but was much better after adding the bottle warmer. Extra pressure, from the bottle warmer, will more than compensate for the longer distance from the throttle body.