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N2O on a h22a j-spec to do or not to do?

 
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Old 09-07-2010, 04:26 PM
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Icon5 N2O on a h22a j-spec to do or not to do?

Like the title says i have a 1992 prelude bb4 4th gen prelude with a h22a j-spec engine i am building all motor but am considering nitrous the list of mods so far are

Crower stage 2 cams and retainers
ACT stage 3 racing clutch
DC sports 4-2-1 header
DC sports muffler 4" tip
2.5" custom exhaust
Skunk2 Pro series Intake manifold...........decided not to buy
Skunk2 70mm throttlebody............decided not to buy
Skunk2 adjustable cam gears
Injen cold air intake
Tunned P72 GSR ECU tunned on crome
Eibach coilovers with a 2.5" drop
Megan Racing Strut Bars (front and rear)

Thats the list of engine mods as far as the rest of the car it has a full body kit both bumpers side skirts and fenders. Also a set of R-1 17" racing rims with falken tires size 205/50-R17. I am wanting to run nitrous on it but not sure if the engine will take it, not a big shot maybe a 60 or 75 at the most. Also at the drag strip I am having some trouble with Launching I seem to be spinning the hell out of my first two gears the car just won't hook out the hole. Any helpful advise is welcome

Last edited by 92preludejspec; 09-13-2010 at 10:02 AM.
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Old 09-07-2010, 11:20 PM
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Icon10 Re: N2O on a h22a j-spec to do or not to do?

Update: i just traded some of my old h22 parts for a Venom vcn-1000 computerized nitrous system but it only had one jet a purple on the guy told me it was a 50 shot but i just found out it could be an 80
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Old 09-07-2010, 11:58 PM
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Re: N2O on a h22a j-spec to do or not to do?

Do it. H22's are nasty on nitrous.
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it'll sound like an ultralight airplane or a moped exhaust funneled through a kazoo.
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Old 09-08-2010, 07:49 AM
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Re: N2O on a h22a j-spec to do or not to do?

a friend of mine has blown like 3 motors on nitrous. i dont trust tha stuff so i wouldnt run it but u can do whatev man
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Old 09-08-2010, 08:15 AM
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Re: N2O on a h22a j-spec to do or not to do?

It sounds to me like he's an idiot.
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it'll sound like an ultralight airplane or a moped exhaust funneled through a kazoo.
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Old 09-08-2010, 09:42 AM
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Re: N2O on a h22a j-spec to do or not to do?

Well the venom vcn 1000 kit i have has good reviews as far as safety it watches the air/fuel ratio if the engine leans out it shuts the n2o down only thing is it spray all by itself no push button. it hooks to the tps and the o2 flip a switch and at wide open throttle it sprays on its own
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Old 09-08-2010, 09:47 AM
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Re: N2O on a h22a j-spec to do or not to do?

Do NOT and I repeat DO NOT just toss a nitrous system on ur car w/ doin some research and knowin what ur gettin urself into 1st. U will blow ur car up. Heres some info i gave to another guy.

I've done a lot of research on this topic myself. I'm thinkin of sprayin my car. Zex makes an awesome wet kit n its really easy to install. As far as the "shot" is concerned on stack internals dnt go any bigger then a 75 shot. Anything larger n the nitrous tends to clot in cylinder 1 causing premature wear. If u want over a 75 shot (or even for a 75 shot IMO) u def wanna go direct port. Much more even burn n is safer. Ur also gonna want a wet not a dry kit. The difference is a wet kit mixes w/fuel before going into the motor n a dry does it while entering. High comp pistons n cams will help make some power along w/ur nitrous but that doesn't make it ok to run a 150 shot. Ill be doing full forged internals wen I build my setup. Can take more abuse. But engine managment is a MUST!!! If ur not tuned for spray somethins gonna blow up. That's just simple mechanics. W/a 75 shot or lower u shouldn't have to retard the timing any...maybe a degree. 150 shot ur prolly gonna need 2 degrees maybe 3. As for legality u can get an electronic bottle opener/closer. Legally u can have nitrous in the bottle n the bottle connected but u can't have the bottle on. W/an electronic opener....u get pulled over hit a switch...ur legal. I too like nitrous' appeal of daily driven capability...that being use when u want it. Long story short do u research,take ur time n do it right. U can drop a grand on a nitrous setup but if its done wrong it can cost u ur motor or any other amount/equivilant of money. Boost isn't cheap either. As for which is better I believe its entirely opinion. But %99.5 of guys on here will tell u to research. I've got countless hours of time spent on my computer just searchin for stuff. Last night I did some research on retrofits for about 4 hrs. If u want it bad enough u won't mind puttin the time in to do it right. Anyways good luck w/ur build n hopefully I gave u some useful info.

I'll also refer u to our Nitrous section in the tech talk. Nitrous can be very reliable if its done properly. Research research research. Hope this helped a little
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Old 09-08-2010, 10:51 AM
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Re: N2O on a h22a j-spec to do or not to do?

What kind of power did you put down if you dont mind me asking.


It seems the mods on your car are primarily detrimental to power production at the moment.

Remember. Making power NA is about moving air into and out of the engine as efficiently and quickly as possible.

The 70mm TB is oversized significantly for the amount of flow capabilities you have. And the DC header is one of your main bottle necks at the moment.




And yes, Nitrous can be a great power adder. I have my nitrous hooked into my Hondata S300, tuned fuel maps for it, and am putting down over 300whp pretty reliably.
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Old 09-08-2010, 10:58 AM
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Re: N2O on a h22a j-spec to do or not to do?

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Originally Posted by Phantom240 View Post
It sounds to me like he's an idiot.
haha yea just a lil. always tearin up s#!t on his car
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Old 09-08-2010, 11:33 AM
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Re: N2O on a h22a j-spec to do or not to do?

I totally agree with Diamond.
Go with wet it is safer for a daily drive.
If you want my advice go with 16 inch rims 17 & bigger are too heavy for me.
you want your Lude to be agile right?
A standalone is a great investment.
I am currently running AFCneo with UR ultra SS Greddy Headers and exhaust, Injen R&D Intake, deleted the PS and AC.
I still didn't equip skunk2 valve train combo stage 1 that I bought 6 months ago because I want every thing to be perfect and balanced.
That's why I take my time doing this.
I wish you all the best.

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Friends how have no knowledge are useless :p
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Old 09-09-2010, 08:21 AM
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Re: N2O on a h22a j-spec to do or not to do?

I did not say that i was going to spray anything bigger than a 75 shot i know better than to spray a 150 without direct port. Like i said i have a venom vcn-1000 computer controlled system that i am going to install it is simular to zex but a little more technical and time consuming to install but i thinking of only running a 50 shot to start with and see how that goes
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Old 09-09-2010, 05:40 PM
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Icon5 Re: N2O on a h22a j-spec to do or not to do?

UPDATE: I have decided to go with a 50 wet shot i have everything but the jets that go into the nozzle i need to know what size jets will equal a 50 shot i was told the n2o jet should be a 0.035" jet but i dont know about fuel size i was told a 0.019" will work but not sure if thats right any help is welcome
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Old 09-13-2010, 10:03 AM
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Re: N2O on a h22a j-spec to do or not to do?

so what size throttle body should i use on my h22a j-spec i was going with a 70mm but was told it was to big the stock size is 60mm i think? i am planing on running a 50 wet shot of n2o. i already have some mods done, i have a header, stage 2 crower cams, adjustable cam gears, act stage 3 clutch, injen cold air intake, and a tuned ecu. i have looked to find out what i need, i almost bought a skunk2 pro series intake but after some research decided not too, but i havent found anything on throttle body sizes

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Old 09-13-2010, 11:56 AM
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Re: N2O on a h22a j-spec to do or not to do?

I wouldn't go any bigger than like 64mm without having some big time headwork or forced induction
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Old 09-13-2010, 11:59 AM
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Re: N2O on a h22a j-spec to do or not to do?

do u know what size jets i need for a 50 wet shot
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Old 09-13-2010, 12:23 PM
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Re: N2O on a h22a j-spec to do or not to do?

Absolutely not, lol.
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Old 09-16-2010, 08:35 AM
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Re: N2O on a h22a j-spec to do or not to do?

Update: Found my jets im running a 0.019 on fuel and a 0.033 on n2o
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Old 06-13-2011, 10:30 PM
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Re: N2O on a h22a j-spec to do or not to do?

i got a j-spec also keep the updates coming
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