Rep Power: 0

Everywhere i look someone is recommending me not to use 75 shot, or telling someone else that any more than a 75 shot is risky. Fact is this is just a folk tale passed along and eventually accepted as truth.

The fine people @ zex recommend no more than 20 horse of nitrous per cylinder. 75 shot is safe with 94 octane gas on a car with a functioning fuel system and ignition. colder plugs required also.

several people are running it on here, and i've heard no problems. Fact is if 55 was the most that you could spray safely then why does zex release a kit for our civics with a 55 shot as the lowest setting?? I'm sure that if zex didnt think it could run safely they'd do 35,50,65?? if a company was advertising different settings and 2 of the 3 settings where risky i dont think they'd do it. Companies always low ball there recommendations to avoid claims against them if there product does cause damage, leading to bad publicity.

If i'm wrong let me know...if you've had bad expierences running a 65 or 75 shot of nitrous let me know, cause i just cant think of a good reason why not to run a 75 shot. i mean ... a stock engine can take a 70hp turbo but apperantly cant handle a 75 shot of nitrous??? even though its a much less frequent thing and for much less of the power band??? I dont understand that. I know about pooling and that's a purely nitrous problem...but it's a very rare problem, and shouldnt happpen if you're careful. As far as engine problems....rod failure comes to mind....but that's the same for turbo applications...if not more so.

i'd appreciate anyones comments...i'm just trying to get to the bottom of the nitrous story in regards to our cars. If you are running nitrous please post an let everyone know if you R problem free or otherwise. And what shot you R running.

thanks

 
Rep Power: 0

no one have any problems??? i'd love to have some technical info on the subject to better understand what is ACTUALLY safe on our cars. my circumstantial evidence doesnt hold up as good.

 
Rep Power: 401

nitrous kits are universal, just cuz zex makes it up to 75 doesnt means its safe for every car. NOS makes a kit up to 150hp, that doesnt mean we can use it. its up to the consumer to reasearch their car and learn what it can handle before they buy the kit. maybe our cars can do a 75shot, i dont know, i dont have nitrous. its just that nitrous is in some ways more tricky than turbo, its not a steady climb of HP, its a all of a sudden blast of power. i'm not trying to say your wrong BTW, i dont doubt you can do a 75 shot its just that i think more people want to "play it safe" with a 50shot is the reason why most people dont recommend going above that.

 
Rep Power: 0

There is nothing wrong with running a 75shot in your Civic. I ran a 75 shot plenty of times. Many people who purchase nitrous kits do so because they cannot afford a turbo or an engine swap. Thus they are more careful with their engine because they acknowledge they cannot get another one if it gets damaged.

 
Rep Power: 0

I am running a 50 shot and I want to set my VAFC II up just perfectly before I bump up to a 75 shot.

 
Rep Power: 0

i'm gunna run a 55 shot out of the box and then go up to 65 after a few tries then to 75. i'm only gunna use enough juice to beat or make a race with the car i'm going up against. Example, my girls saturn, i'll just N/A it, same with other 7thgens. For RSX's and Preludes i'll 55 shot it, and for the type-S i'll go 75 shot.

 
Rep Power: 0

sorry o2civic but i dont think that 75 will help you against an S. If he's the type to race then i'm sure he'll have stuff done to his car so i think that 75 shot might not be enough. Not raggin on you just trying to help

 
Rep Power: 0

I had a 92 integra (1.8ltr, automatic) and used an N.O.S. 80 shot (dry mustang kit adapted) - squeezing on an almost daily basis, for many years. Back when nitrous was cheap, two 10lb bottles a week was not rare... The engine never missed a beat. But that does not mean yours wont let go. But generally, i have been juicing for 10+ years, and feel with maybe a 2step colder plug, 35 gap, and a wet jetting in the range of 12:1 afr, you should be fine on good gas without any retard device. but your mileage may vary.

 
Rep Power: 0

no prob man...but what is the stock 1/4 on a RSX-S??? Arent they very high 14's??? And i only mean lightly modded to unmodded S's...just because its an S doesnt mean its done up to the ****. Besides i only want to make it a good race....as long as its close.

 
Rep Power: 0

thanks man i appreciate the input

 
Rep Power: 0

i had a 50 shot and it worked fine but soon got boring so i bumped it up to a 75 shot..it worked great in the beginning but i started to get fuel cut

 
Rep Power: 0

Hey Guys thanx for informing me w/the whole 75 thing. i was scared to run it but now I feel a bit more confident. More info would help though, being informed is always a good thing.

Thanx,

John

 
Rep Power: 0

i wouldnt do more than a 65 shot with stock internals unless you dont care about your motor and transmission lol

 
Rep Power: 0

are we talking aobut a wet or dry kit here?

 
Rep Power: 0

WHATEVER!!!! The RSX-S is the most overrated car out ... I mean lets look at the specs ... The RSX-S is almost the exact same size as my 2002 EX Coupe (within 2 inches on all measurements) yet it weighs 200 pounds more .... The corrected HP on a 2003 Type-S AT THE GROUND IS 164 ... Now my car is a stock EX 5 speed with I/H/E, no cat, and a 55 shot .... My 02 EX has a corrected HP rating of 106 at the ground ... 106 + 55 and lets just say my lack of cat + I/H/E only gives me 8 hp at the ground ( probably realistically more like 12 but ...) so now we are around 170 HP on the pavement ... I have more HP and less weight than the Type-S ... And before the flames start, the reason I took the time to figure all this out is because I smoked a Type-S while down in FL for Christmas and couldnt imagine how I did it.. and btw, that pathetic POS they call the base model RSX - 131 on the ground - can be taken by a 7th gen with ONLY I/H/E as long as the 7th gen driver doesnt weigh 300-400 pounds ... I know many folks are gonna call BS on this but hey, next time you see an RSX on the road try him, you'll be amazed at how fast they AREN'T ....

 
Rep Power: 0

K20's respond much better to mods than D17's. With just I/H/E and a vafc2 they put down 200whp. I agree that they are over rated, but I don't think they are that slow.

 
Rep Power: 0

well they all have they ups and downs i think the RSX-S has too high HP comapred to the torque and thats what kida make it shitty(stock) now wiht some mods expecially a turbo it kicks *** I saw a Rsx wiht a T25 some the impreza (not STI) like nothing! but The D17 I think can hold well up to the Regualr RSX!!!!

 
Rep Power: 0

Ive got a nx wet kit, colder plugs, and cam gear(retarded 2degrese) and ive been running a 55shot. I was going to go up to a 75 but i dont know... I think im going to upgrade internals first.

 
Rep Power: 0

would retarding the cam do much of anything??

 
Rep Power: 0

chickens...

find the standard jetting, go up one on fuel, and up the octane with race gas (no lamo oct. booster), colder plugs, and do it. I got my sf kit to 14psi for two runs and it held- auto trans and all.

our D17's are pretty tuff, just make sure the tune is right.

 
Rep Power: 0

I just talked to Josh at DHRacing the other day... I explained that with my tax return I wanted a PnP head, cam regrind, valves, springs, and retainers ... he said unless I was going to be doing some SERIOUS revving that the stock head internals on a D17 are sufficient for most setups .... any1 running a high compression D17 yet??

 
Rep Power: 0

I walk a rsx base model the other day on the A C expressway..... he was lowered and he had some exhaust as far as i could see....but yes .. they are slow...

By the way NashVegasEX did you ever run ur car in the 1/4 mile, with and with out the nitrous.
couse it seems as if we are pretty close in mods and i just wanted an idea.

 
Rep Power: 0

getting back to the topic at hand. nitrous has the tendancy to create a large amount of heat compared to a turbocharger or supercharger (properly set up turbo/supercharger). and because it is more of an "instant" power hit, as opposed to a more linear application of a turbo it has a higher probablility of crushing the ring lands. the d17 pistons have extremely small ring lands and anyone who has torn one apart can attest to this.

 
Rep Power: 0

The base model rsx is slow obviously, but so are our cars.....

i just saw a vid of a Type S run 13.2 all motor, those cars aren't slow.

They pull high in the rev range, have some seat time in one, you'll love it.

 
Rep Power: 0

I ran a 75 shot for quite some time and never had any issues. I didn't retard the timing, but I wish I had gotten a chance to tune on my vafc. I'm sure my dyno numbers (185whp and 208wtq) would have been nicer with some tuning.

SOme of you guys are being pretty wussy about it. Spray a 75....and you'll see. It's not like you're gonna blow up on the first chooch. If you do, you shouldn't be racing anyway cause your an idiot.

 
Rep Power: 0

I agree with her...if u have the right kit, with it setup right, using the colder plugs, nobody should have any trouble using a 75 shot....I have had no detonation problems at all since I started using my 75 jets.

 
Rep Power: 0

this dude has a type s with aem intake, fuel rail, maybe a cam gear and a buddy club exhaust and i saw him run a 14.9, he says he runs faster but i haven't seen it. my friends 96 civic with 115 thousand miles sprays a 75 shot with no prob. and he runs 14.7

 
Rep Power: 0

These 7th Gen civics have the ability to run low 14's easily with the right set up using a 75 shot...I know this because I ran a 14.4 @ 98.5mph on my 75 shot and that was with a not so great launch that gave me a 2.34 60' time. Numbers like those might leave some of those Type- S's feeling a bit toasted.

 
Rep Power: 0

Exactly Cracker.

Corbeau civic guy.....a 75 shot can prove for very low 14's on our cars VERY easily.

I can't stress enough the tuning aspect of it though. I'd encourage Everyone to go to their local dyno

 
Rep Power: 0

I'd listen to her guys... judging by her last several post, she sounds to me like she knows what shes talkin about.