Guys bare with me please i have never posted here before, and if searching will answer my questions then please just inform me so! This question is for a friend who did not feel comfortable posting b/c he is new. His current set-up is my old b16 with civic type-pistons and i beleive he said holly 255 lph fuel pump and he is just using a VAFC for fuel management!

Ok so obviously from the title he is interested in running nitrous on his motor at the strip. His question was what type or nitrous set-up would be best to use....(wet, dry) , (50 , 75, 100 shot...). In all honesty i have never researched or know anything about using nitrous so please bare with me. So if you feel you can help me out i would really appreciate it. Thanks in advance.... .

 

START WITH A SMALL SHOT FOR SURE

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jokerluv &raquo;</TD></TR><TR><TD CLASS="quote">START WITH A SMALL SHOT FOR SURE </TD></TR></TABLE>

There is a start....anybody else have some suggestions. Size, dry or wet? From what i could gather from a quick search everyone seems to favor a wet shot, correct?

 

I run a wet 75hp shot on my wifes neon. Makes really good power and is pretty reliable. No problems yet. Recently ran a 12.8 on slicks.

 

I ran a 55 shot wet on my GSR motor a while back. I'd recommend the ZEX kit because it is simplistic and safe. I was gonna go up to an 85 shot but decided to ditch spray and go boost.

Edit, now that I think about it, it's for sale too, for a good price.

 

This is all helpful but is there anything i shouldnt do so that in know what i can....is there a limit as to how large of a shot. I mean obviously i wouldnt want to go spray a 100 shot off the back or anything, but more help would be appreciated on this subject. Also...does it matter that the compression is so high due to the CTR pistons?

 

Higher compression needs more ignition retard and/or higher octane fuel and/or richer jetting....

 

IMO wet is the way to go. ive done em all . Zex is good and simple for a decent set up . but i like DP .i went 100 shot on my R , stock motor, no probs. but its all in tuning

 

DO NOT SQUEEZE ANYTHING OVER 40 DRY WITH CTR'S PERIOD. Anything with ctr's should remain all motor

 

lol. Nitrous works better with higher compression .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">lol. Nitrous works better with higher compression . </TD></TR></TABLE>

Hey Pete....ill shoot you an pm but if you see this i could use your assistance. It appears i have some people who think they know what they are talking about, but i would trust you with just about anything when it comes to extra hp .

 

anything can be done , as long as its done right.

 

i have a NOS dry kit that i bought new for $550. if you think your friend is going to want more than 80 hp(to the flywheel). i would go direct port or atleast a wet kit.

 

ITR 206 said it best, anything can be done, as long as its done right. I have used directport setups on some of my engines since 1996, done right you can use 140 shot with out any problems. if you want to start off small then i would recommend a single fogger wet shot of about 50. if you want to go direct port then I would start off with 80 shot. just be sure to check fuel pressre and ignition timing and you should be fine. a good rule of thumb is 1degree of timing for every 40shot or so, so 80 shot would be 2 degrees of timing retarted. when you go for the first run make sure you take the spark plugs out and check them after. a good running system will make the plug look really clean with a hint of yellow. a lean condition will show up on the plug as a yellow tint with brown specs everywhere, and a rich condition will show up black of course. when you start out you can also run it safe by upping the fuel jet one size to run a rich shot. So lets say you have 22 16 for your direct port and want to run a little rich then change it to a 22 17 or 22 18 and try that out then back it off if the plugs look to rich..........Hope this gives you some insight and helps you out....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RedZone &raquo;</TD></TR><TR><TD CLASS="quote">ITR 206 said it best, anything can be done, as long as its done right. I have used directport setups on some of my engines since 1996, done right you can use 140 shot with out any problems. if you want to start off small then i would recommend a single fogger wet shot of about 50. if you want to go direct port then I would start off with 80 shot. just be sure to check fuel pressre and ignition timing and you should be fine. a good rule of thumb is 1degree of timing for every 40shot or so, so 80 shot would be 2 degrees of timing retarted. when you go for the first run make sure you take the spark plugs out and check them after. a good running system will make the plug look really clean with a hint of yellow. a lean condition will show up on the plug as a yellow tint with brown specs everywhere, and a rich condition will show up black of course. when you start out you can also run it safe by upping the fuel jet one size to run a rich shot. So lets say you have 22 16 for your direct port and want to run a little rich then change it to a 22 17 or 22 18 and try that out then back it off if the plugs look to rich..........Hope this gives you some insight and helps you out.... </TD></TR></TABLE>

Thanks very much.....this was very much along the lines of the information that i was looking for.

 

if you decide to go nitrous , let me know . You aint to far from me , i can help out if you need. Ive done enuff of em to say i kinda know what im doing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">if you decide to go nitrous , let me know . You aint to far from me , i can help out if you need. Ive done enuff of em to say i kinda know what im doing </TD></TR></TABLE>

Pete, im actually not thinking of using NOS on my caR but the owner of my old motor which is now in a 94 civic coupe is. I am def interested in coming up some weekend to shoot the **** and maybe go to the strip though.

 

ok , just let me know.

 

that compression is a lil high for a big shot. its been done but i think you will need some good tuning for anything higher than a 50 shot....but then again i dont use nitrous...

 

Nitrous and high comp go together very well, ut like has been stated here many times, it's all in the tune. It's a simlar concept to turbo and compression, or supercharging and compression, they can all work very well together, but your tune has to be bang on.


Clayton

 

Nitrous and high compression like eachother the bike that me and my dad built has 16:1 compression and a 100 shot just good tuning

I recommend doint a Directo port wet kit, w/ 75 shot jets i loved mine when i was all nitrous. also the only brand i use is NX the NOS kits i have installed are junk and cheaply made.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99blackcivicSi &raquo;</TD></TR><TR><TD CLASS="quote">Nitrous and high compression like eachother the bike that me and my dad built has 16:1 compression and a 100 shot just good tuning

I recommend doint a Directo port wet kit, w/ 75 shot jets i loved mine when i was all nitrous. also the only brand i use is NX the NOS kits i have installed are junk and cheaply made.</TD></TR></TABLE>


High Compression and any type of forced induction follow the same rules; higher compression is more prone to detonation and destruction without proper tuning.


Definitely get a wet kit, I would go single fogger. Direct port is a serious kit, and I would rather go with boost instead cause the price of a FI kit is actually cheaper than the $45.00 a weekend for bottles of nitrous

 

here is a funny saying i read a while back,"nitrous is like a girl with an std,you want it very bad but your not willing to suffer the consequenses after you hit it".
-some honda tech member

 

Off topic but....
Does anyone have the chart or know what jets I would need for a 50 shot and a 75 shot?? System is a NOS single fogger dry kit. TIA.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">anything can be done , as long as its done right. </TD></TR></TABLE>