Wet Vs. Dry (Direct Port)
07-10-2002, 11:41 PM
#23
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No matter which kit you go with, my recommendation would be to dyno your car if your going to use anything over a 50 shot while also checking for A/F mixture problems. That way you know exactly what kind of h.p. abuse your giving your car no matter what the nitrous sales reps say. wink Every car and nitrous brand (jet size) is different therefore there will be many variations in the final h.p. output.
These things are Universal FITS not an exact universal horespower output.
These things are Universal FITS not an exact universal horespower output.
07-11-2002, 12:03 AM
#24
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i think SCCA is trying to say when OTHERS are DRY SHOT rated, his NX is WET SHOT rated thus more horsepower? lol I don't even know
All i know is I like zex. I can install one in a tibby in about 30minutes ready to roll. and ti's so easy to use. if I can do it, YOU can too! smile.gif
anyone up for zex install? I will even make a custom bracket for behind the seat bottle mount. Convenient.
All i know is I like zex. I can install one in a tibby in about 30minutes ready to roll. and ti's so easy to use. if I can do it, YOU can too! smile.gif
anyone up for zex install? I will even make a custom bracket for behind the seat bottle mount. Convenient.
07-11-2002, 02:17 AM
#25
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QUOTE
SCCA 01 Elantra:
How many engines has Jaws gone through already because of bad timing or something else? Has he tried the NX kits yet. I don't think so.
take that back you whore!!! How many engines has Jaws gone through already because of bad timing or something else? Has he tried the NX kits yet. I don't think so.
tongue.gif i still have the same engine
I have fried 3 plugs though
2 because i ran lean *stupid fuel pressure line*
1 because the car ran lean *reached stock limits even with an eclipse turbo fuel pump*
i know have venom
I am also very happy,... if my car wants to go boom, venom happily shuts it off. This kit is perfect for checking dam limits in our fuel system.
As for NX,... its not a bad kit, Nobody here has said its a bad kit. Red even has it. It is stupid though that they try to use a universal power train loss and rate their nozzles at WHP
What about someone with a lightweight flywheel *reduced power train loss*
They would get MUCH higher results than someone without it
So once again that WHP will not be accurate
Just like autos and manual, hondas and hyundais, bull dozers and stupid suzuki gsx-r's that dont want a power commander
anyways,...
They all have different power train losses, so rating their kit by WHP is not smart.
07-11-2002, 02:30 AM
#26
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Technically, I don't have an NX kit, nor do I have an NOS kit. I'm using pieces from three different manufacturers for different aspects of the system.
I trust NOS systems race solenoids more than NX's, and their progressive controller was less expensive and performed almost identically. NX does has better nozzles and prettier distribution blocks.
And my nitrous bottle has NO nitrous-name-brand label on it, but who do you know that makes a 40 pound 3000psi nitrous bottle?
EDIT! If you want to know why I need a 40 pound bottle, look at my post count on this post!!
I trust NOS systems race solenoids more than NX's, and their progressive controller was less expensive and performed almost identically. NX does has better nozzles and prettier distribution blocks.
And my nitrous bottle has NO nitrous-name-brand label on it, but who do you know that makes a 40 pound 3000psi nitrous bottle?
EDIT! If you want to know why I need a 40 pound bottle, look at my post count on this post!!
07-11-2002, 02:39 AM
#28
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That's cool. Jaws. Ithgouhtyou fried at least one of your engines when you ran lean witrh the venom kit. Anyway, NX wioll be coming out with and A/F ratio cutoff soon and alrerady has a fuel presdsure cutout. And for the lighten flywheel concept you should already know you changed your drive train loss and uyour kit is rated for WHP that you will get slightly more out of the kit as you were getying before the lighten flywheel. IF someone who does that and doesn't know that well they need not be doing complicated things to their car like that. smile.gif And yes some cars will get 80HP to the wheels and somew cars will get 70 HP to the wheels. its rasted not for 100% its somewhere around 98% or so of the rated. which gives them a buffer. And the whole 100 shot jets for a 75HP system I am not totally sure aout that. I am asking NX today about the jetting sizes for those HP ratings. Also NSO and ZEX and all do not flow test their jets/nozzles, NX does. Ever wonder why the NX nozzles are patented? and the NOS and the rest arent? I dont know too much about the Nitrous Works or the TNT kits but I think there is not a lot of people using those kits anywhere. The two most popular seem to be, NOS and NX. NOS beingmore of a domestic N20 Applicatioin and NX being an import application. Of course their are alt of imports using NOS and domestics using NX, but NX I think their kits are more geared toward the import community. NOS cheater (wet kits) Just plain suck on any type of EFI system. Their fuel nozzles suck. I have seen it time and time again where the NOS guy blows his IM or at least a slight back fire from using a NOS cheater kit on an EFI. I have yet to see an NX do the same thing on an EFI car. The only way I could see it happening is if the installer is an idiot and puts the nozzle 1-2* away from the throttle body. The fuel jets are the reason why you do not have to mess with timing when using an NX kit. ever other systm you do. And this is not only from NX its from other sources like vette clubs and such that know how to tune their cars. And they know they do not have to fool with special timing to run the nx kits. Now you can don't get me wrong here. But for the top rating of the 75HP you would not need to retard timing. Maybe if you wanted to do a 150 progressive out of the same mildly modded engine. Hell I plan on messing with my timing as soon as I get the SMT-5 in.
07-11-2002, 02:45 AM
#29
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QUOTE
SCCA 01 Elantra:
That's cool. Jaws. Ithgouhtyou fried at least one of your engines when you ran lean witrh the venom kit.
DAMNIT THAT WAS WITH THE ZEX KIT YOU BASTARD!!! That's cool. Jaws. Ithgouhtyou fried at least one of your engines when you ran lean witrh the venom kit.
ONE MORE MESS UP AND IM FLYING TO KINGSVILLE TEXAS JUST TO KICK YOU IN THE NUTZ ASSHOLE!!!
tongue.gif
seriously though, the venom has the safety thingy... if it didnt... that would be another story
back to the ORIGINAL question
Well randy it all depends how much you want to push your car
Make another post asking for your injector limits
Im sure one our guys here whos bored off his mine at work will do all the calculations.
Or if you want to try and find out yourself, go to RC's website
Use their injector calculator or use the one on FXTREME.org
Once you know your injector limits you can decide what to get depending on your max injector output wink
07-11-2002, 04:51 AM
#30
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According to RC Engineering's work on my stock injectors...
Given a motor with a BSFC of 0.50, no more than 80% duty cycle and running 65psi, these injectors are good for around 169 crank horsepower. They are Bosch 245cc/min 16-ohm top-feed parts.
What's funny is, given the same circumstances but at 43psi, our injectors are supposedly only good for like 143 crank horsepower. Since I've dynoed significantly over that figure more than once without ever touching fuel pressure, I think either our BSFC is lower or RC is just a little too conservative with the computation.
But I am willing to bet that ~200HP is the limit.
Given a motor with a BSFC of 0.50, no more than 80% duty cycle and running 65psi, these injectors are good for around 169 crank horsepower. They are Bosch 245cc/min 16-ohm top-feed parts.
What's funny is, given the same circumstances but at 43psi, our injectors are supposedly only good for like 143 crank horsepower. Since I've dynoed significantly over that figure more than once without ever touching fuel pressure, I think either our BSFC is lower or RC is just a little too conservative with the computation.
But I am willing to bet that ~200HP is the limit.