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Discussion Starter · #1 ·
ok keep in mind i have never ran nitrous ever...i was wondering, i am thinking on a ZEX kit with a 55 shot ok what do i need i keep reading about FPR's well what if i have a V AFC? do i still need one? can i safely run 55 shot without retarding the timing? If these questions sounds strange, bare with me :wink:
 

· Brokedick Millionaire
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timing to stock settings, as with the fuel pressures.

lose the vafc and use the ZEX 65 hp fuel jet with the 55 hp n2o jet.

read your plugs, OFTEN!
 

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Discussion Starter · #3 ·
do i still need a fpr or no? I was planning on using the zex plugs as well, heard they worked well as they are made for the system. Thanks for the info i am writing it down :)
 

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I posted about Champion vs NGK plugs b4. Go with whatever, just make sure you get a colder heat range. I like 2 steps colder personally. Don't need it with a 55 shot, but why not have it ya know?

American plugs = lower number colder plugs
Japanese plugs = higher number colder plugs

(Had a debate with stupid pepboys guy about it, the tard didn't want to sell me NGK 7 heat rating "Cuz why wouldz I get hotter plugs for my Honduh"... ass)
 

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Discussion Starter · #7 ·
cool thanks for the info, next month this time hopefully i will have my setup. Now to find somewhere around here that fills up bottles :?
 
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Ive used Champions, NGK, ZEX and all the rest of the plug manufactures. The best Ive came up with is the NGK BKR7Es gapped at .030 . As for the FPR you do not need one at all. Also dont use the 65 shot fuel jet and the 55 shot nitrous jet........ this will make your car run too slugish. I have tested many ways to run the zex system and it wont make your car safer to run it will just make it run like crap. You can safely run a 75 shot on your car ( depending if you have good compression in all cylinders). Im currently running the 75 shot with the NGK plugs and the timing set at 1.8 degs retarded (wich is a lot less than most run) and have had it there for over 2 years with no problem at all. I also run this car hard quite a bit, so I hope this helps you out.
 

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Discussion Starter · #9 ·
thanks for the info. I am going to switch in my d16a6 first before i put the bottle on it, right now i have a d15b2 :roll: i'm sure it probably could barely handle the 55shot
 

· Brokedick Millionaire
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you CANNOT safely run 75 shot without a FPR and pump upgrades.

BTW it was ZEX man, aka Matt Patrick who WORKS for ZEX along with Joey Copeland (ZEX Tech) that suggested the step up on the fuel jet.

Likely your bottle pressure was too low, that is why your car was sluggish.
 
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Timming is very important. I ran a 55 dry zex kit on my Y8 with cheep ngk's that were two heat ranges cooler, gaped at 0.027. My ignition timing was 2 deg advanced (I live in colorado springs Co, @ about 5600 ft) I purged my line every time and ran 1100 psi bottle presure every time. This was on a stock fuel system and 91 octaine w/ out law fuel additive. I had taylor 409 wires, MSD 6AL, Pro Cap and a Blaster SS coil. I tuned off of O2 sensor voltage and plug reading with this set up the plugs were golden brown and the car moved out pretty well.

Hope this helped.

Blk95ex

P.S. I used an AEM cold air w/ the nozel ported in on the throttle body side of the hole where the pipe goes down towards the bumper so my nozel was aprox. 3 ft from the throttle body. With the purge kit the atmoization of the nitrous made the pull feal a lot more linear than most dry kits I've felt. More like a turbo that spools very, very fast.
 

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Discussion Starter · #12 ·
thanks, yeah i want to run the same setup, i would have had my aem in by now but i canceled it because dragracing.com takes forever. I got this integra LS here with the most shitty sounding exhaust, sounds like he just put holes in the muffler, well i wanna run him when i get my zex kit...my friend think nitrous is cheating i say, i pay for the power everytime i fill the bottle up, it's all cheating then you might as well go all motor if you feel that way
 
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transzex said:
you CANNOT safely run 75 shot without a FPR and pump upgrades.

BTW it was ZEX man, aka Matt Patrick who WORKS for ZEX along with Joey Copeland (ZEX Tech) that suggested the step up on the fuel jet.

Likely your bottle pressure was too low, that is why your car was sluggish.
Your first statement is BS all the way............ you DO NOT need the FPR or the pump upgrade. Ive been running this for 2 years now. Read all the tech on the stock FPR, and pump. It will actually hold more than a 75 shot. Also my pressure wasnt low......... the added fuel to the system (65 shot) and the low amount of nitrous (55 shot) would be the factor in this equation. More fuel VS the low amount of air would make it a "rich" condition....... hence the feeling of "slugish". Oh and to give you the 411, Ive been building drag cars (domestic and imports), and hybrid off- road trucks for over 10 years..............
 
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why should you loose the vafc? i have one and have been running well on a 55 shot for a while. i have zex plugs, and i seem to like them. i have had several diff plugs and i dont see how you can notice a huge diff by changing them. i would rather use plugs made for nitrous.
 

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Hey transzex... or should I say Mister Bone... nice to see you around these parts.

Anyway, when it comes to the FPR and pump debate for a 75 I figure you can get away without it. But if you have the money and you want peace of mind I'd go with the upgrades. I know I don't trust a 75 shot on my CRX considering the fuel system and the block has been untouched by myself. The only thing I do have in terms of fuel control is my Field controller.

I'm just saying you are both sorta right. :)
 

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Before this becomes a pissing match........75 shot on stock parts is like walking on thin ice, your gonna fall through someday.

The main thing, the stock injectors can ONLY support 210 hp at the max.

Stock 125 hp + 75 hp shot = maxed injectors, walking on the edge.

Plugs were white, when they didn't melt.

The cure, MORE FUEL.

325 cc / 30 lb Ford injectors, perfect.



The clutch that held my 13.09 @ 103, slipped from before 1/2 track on its way to 13.40 @ 103.

Building cars for over 10 years eh?

I've been tinkering for 25 years.
 
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transzex said:
Before this becomes a pissing match........75 shot on stock parts is like walking on thin ice, your gonna fall through someday.

The main thing, the stock injectors can ONLY support 210 hp at the max.

Stock 125 hp + 75 hp shot = maxed injectors, walking on the edge.

Plugs were white, when they didn't melt.

The cure, MORE FUEL.

325 cc / 30 lb Ford injectors, perfect.



The clutch that held my 13.09 @ 103, slipped from before 1/2 track on its way to 13.40 @ 103.

Building cars for over 10 years eh?

I've been tinkering for 25 years.
Not to be a dick but the 10 years is of owning my own shop........ tinkering now thats a diffrent story. And dont think Im some 18 yr old either Ive been in the automotive performance field for quite some time. But back to the topic........... the fuel pump would be a way to relieve the tension in your mind but is not a mandatory requirement.
 
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