80884

00 B16a in 92 cx, looking to run a 75 shot zex dry nitrous kit. Here is my set up...
DC 4-1 jdm header....high flow cat, 2 1/2 exhaust, magnaflow muff, AEM cai, nology plug wires. Checking on the compatabitly of my chipped ecu. p28 with mugen style chip, vtec 4700, rev limit at 9k, guy says it adds more fuel and more timing, which i know is not good for FI. but other then the ecu, am i going to need a fuel pump, fpr, ignition, or anything like that?

I don't want it to go poof. i searched and searched some more....now i ask for assistence. Thanks in advance.

80884

^^^^^^^ ^^^^^^^^ up people.

turbolshatch

well for safety sake i would put a pump and regulator as well as a ignition box plus back the timing off a little.
i am getting the MSD digital 6 ignition for my car so when i activat the nitrous it will back the timing off plus it has a 2 step built in

redlinegsr

with a zex kit you need nothing "extra" to run safe.

laughinxxx

You need to find out how much that mugen ecu advances the timing over the rev range. figure that out and then start retarding timing with a dig 6. Knocking off the usual 2 degrees for a 75 shot isnt going to cut it if you are advanced by more than a degree, and it sure wont be safe.

pdx_accord

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redlinegsr &raquo;</TD></TR><TR><TD CLASS="quote">with a zex kit you need nothing "extra" to run safe. </TD></TR></TABLE>

provided your injectors can keep up. The zex kit can tell them to give more fuel but if they're dirty or at their flow limits, that's it. That being said I "think" 75 is OK for a b16. On my friend's jetta with 160k it was not. Everyone was surprised his engine made it as long as it did before the juice though....

Have fun with the spray, 3rd gear highway speed, slam the throttle and goodbye...

80884

yea i'm still working on finding out about this chip.. But other then that if used propery I am safe? or should be anyway, provided something stupid doesn't happen.

yea by the way the engine has 29,000 miles on it, well taken care of.

Quick question about fuel pump....any difference between a 92 cx and a 00 si?

any other info on this kit would be cool.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 80884 &raquo;</TD></TR><TR><TD CLASS="quote">yea i'm still working on finding out about this chip.. But other then that if used propery I am safe? or should be anyway, provided something stupid doesn't happen.

yea by the way the engine has 29,000 miles on it, well taken care of.

Quick question about fuel pump....any difference between a 92 cx and a 00 si?

any other info on this kit would be cool.</TD></TR></TABLE>

Yeah, 56 LPH to be exact.

CX fuel pump = 79 LPH
00 Si Coupe = 135 LPH

Get a Walbro 255 LPH to be on the safeside, and get rid of that chip. You can't have that thing advancing your timing while you are spraying.

-Trinitron-

Retard the timing 4 degrees and get a fuel pump. You will be fine.

80884

so what do i use in the car to make it run right without the chip? I doubt a stock single overhead cam ecu will provide enough fuel for the B16. So what do i do about it? also could the cx pump be hurting my car now? since it's not as good.

Is there a chip that will make this setup safe or do i have to buy the $300 afc?

Now i'm lost, i can't use the chip, but no chip and car won't run right.

So someone please explain what ecu i need to run the 75 shot in the swapped 92 cx wif b16a. cuz now i'm confused.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 80884 &raquo;</TD></TR><TR><TD CLASS="quote">so what do i use in the car to make it run right without the chip? I doubt a stock single overhead cam ecu will provide enough fuel for the B16. So what do i do about it? also could the cx pump be hurting my car now? since it's not as good.

Is there a chip that will make this setup safe or do i have to buy the $300 afc?

Now i'm lost, i can't use the chip, but no chip and car won't run right.

So someone please explain what ecu i need to run the 75 shot in the swapped 92 cx wif b16a. cuz now i'm confused. </TD></TR></TABLE>

Have someone burn you a chip for a B16 but with NO timing advance. Then put it in. The ZEX NMU will adjust your fuel for fine now by raising the fuel pressure. If you want something to tune better with or go bigger than a 75 shot, you can get some bigger injectors and an AFC or Hondata ( a little bit more to set up, but worth it.) Yes the CX fuel pump could be hurting your performance and I would not recommend running more than a 55 shot with it, I went with a 75 shot on stock fuel pump and leaned out on the dyno, I was lucky I didn't **** something up.) Just get a Walbro 255 LPH pump and be done for around $100.

Also,
55 shot = stock timing
65 shot = 2 deg retard
75 shot = 4 deg retard
I will be using 6-8 deg retard for 100-125 shot hopefully soon.
I would also recommend if you have a fpr set your fuel pressure to 52-54 psi with the vac line off to start. Pull your plugs and see if you are running rich, if so take out some fuel pressure.

PornstaR16L

[QUOTE=RyanCivic2000]
Also,
55 shot = stock timing
65 shot = 2 deg retard
75 shot = 4 deg retard
[QUOTE]
Your deg.s are false. Ive been running my ZEX for 2 years and dialed it all in to run the best using timing. Mine is running 75shot at 1.82 deg retarded. Also the 75 shot needs to be at 2 degs not 4. This will be safer at 4degs but will run slower and more slugish. As for being safe, you could get a bigger fuel pump, but its not needed. No need for a FPR either since the ZEX changes the vacume anyway and the stock one is fine. That kit was built to put on stock cars with no other mods other than timing, and plugs.

80884

Waiting for info on chip still. But other than the chip, I am going to run the 2000 Si fuel pump, and retard 2 degrees from stock. also i have to change the plugs. and after that i will see if it goes boom and let you all know what happens. thanks and any more info, keep sending it....too much info is not a bad thing in this situation, and thanks for the given info so far

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">
Your deg.s are false. Ive been running my ZEX for 2 years and dialed it all in to run the best using timing. Mine is running 75shot at 1.82 deg retarded. Also the 75 shot needs to be at 2 degs not 4. This will be safer at 4degs but will run slower and more slugish. As for being safe, you could get a bigger fuel pump, but its not needed. No need for a FPR either since the ZEX changes the vacume anyway and the stock one is fine. That kit was built to put on stock cars with no other mods other than timing, and plugs.
</TD></TR></TABLE>

When tuned mine I found it to make the best power at 14 BTDC, also. But this was with tuning the proper air/fuel curves on the dyno to make sure I don't go even the slightest bit lean while having the timing retarded only 2 deg on a 75 shot. I only give those numbers because it is the safe way of doing it without any dyno time and tuning, and it is what ZEX recommends. Don't start off on the edge of detonation. Start out overly safe and then take timing and fuel out.

trbob16a

take the advice of everyone so far. if you don't want it to blow you need to get rid of or reburn that chip.

Get it done sooner rather than later, thats a really fun setup. You'll like it a lot

80884

yea i know i have to do something with this chip, i am waiting to hear from the guy that burnt it for me to see what exactly it does, and then i am going to have him burn me one for this setup that will work. I'll keep everyone posted on what happens. thanks for all the info.