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Bee*R rev limiter install 420A 1996 PLEASE HELP

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Aeren

Probationary Member
14
0
Oct 24, 2008
Holland, Europe
Hello guys..
ive searched alot for 420a rev limit install.. nothing to find in this forum or 2gnt or google

hope you guys can help me out with the install looks quite easy

According to Bee-racing: (universal product should work on every car)
Red wire: 12V+
Black wire: Earth
Yellow wire: RPM Signal (what pin on 420a 1996 ecu..??)
Green wire: Ignition signal (what pin on 420a 1996 ecu..??)


here is a complete write up for another car..

Bee-R Rev limiter fitting guide


Hope you guys can help me out with this..

i will make pictures and a complete how to for the futureguys who want to install this rev limiter..

hope yall can help me out..
Take care..

ps: sorry for the bad english im from the Netherlands..
 
The 12V and Ground are easy ones to wire to you should be able to find those. Try searching for a 420a ECU pinout to find what pins those signals go to. I don't have one handy to link for you I just have the 4G63 ECU pinout.

Once you figure those out you should just be able to tap into the wire right by the ECU and be good to go.

EDIT: Here, I found a couple pinouts for you - ECU Pinout 2gnt
 
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first of all
thanks for your quick response..

i already found that pinout
but i dont see the ignition and rpm wire in that diagram..

and they dont have one for the 1996 Ecu

thats why i tried this forum..

maybe im seeing it overhead could you say witch pins i need..

take the 97 Ecu layout..

Thanks..;)
 
oke so i found the rpm wire.. 1 down 1 to go..!!

does anybody know if the ignition wire is the same as the crank position sensor wire on the ECU..!!

i hooked it up like that but it didnt work..:(

so im guessing it must be the wrong wire..

still looking for the ignition wire on the ECU..

somebody..??
 
*ninja edit of bad information*

why do you need to install a rev limiter?
 
as long as you have an OBDII ecu, the year doesn't matter. only some 95's have a difference ECU.
might be different between automatic and manual cars though, i know those are different ECU's

why do you need to install a rev limiter?

to avoid la.... oh wait.
 
I'm not familiar enough with the 96 (and I no longer have one here to check) but I would try pin 20 (black/white) with a multimeter. Obviously, you can eventually find it testing out each pin this way.

But start there.

MB
 
Guys i will come back to thats question why..
cause were going offtopic
first i need to fix it and want to have it work..

its a 2step launchcontrol powerbuilder and a ak47 exhaustbombthrower..
just youtube for it..!! beer rev limiter..!!

pin 20 you say but it says that thats for the main power of the ecu..!!

if i fix it on that wont it shut off the complete ecu..??
all i want is that the spark will quit firing..

but i will try it.. hope i wont fried my ecu..
the 12v+ on the middle of the coilpack where does it come from and to what pin number on the ecu does it lead anybody..??

ps: am i the only one whos ever put a Beer Rev limiter on their 420A..:s
i know these things are very rare but im on the worldwide dsm forum..;)

Greets..;)
 
if i fix it on that wont it shut off the complete ecu..??
all i want is that the spark will quit firing..

but i will try it.. hope i wont fried my ecu..
the 12v+ on the middle of the coilpack where does it come from and to what pin number on the ecu does it lead anybody..??

..;)
Ok, we a have misunderstanding on the term for ignition. What you want to do is kill spark, correct?

MB
 
yes..!!

i need yo kill the spark but the injectors need to keep running and the complete ecu has to work..!!
i only need to cut the spark..

so im thinking i have to wire it maybie to the 12v the middle wire on the coil..
but im not sure..

what doe they mean with.. PIN 4 on 1997 ECU "to generator field coil"

here is the wiring diagram of my EcU somebody what pin i need cause i only want to kill the spark on the 4 cilinders.. everything else has to work properly..

2GNT.com - 1997_ECU


okey ive been thinken alot for the last 3 days
and this is what i came up with

splice the 2 coil wires PIN# 2 and 3 on the 1997 ECU and put 2 diodes between them and connect them with the ''Green Ignition cut wire'' from the rev limiter

what do yall think..??

also i wanna try two other wires..

Pin # 46 and # 67 they both go TO the asd relay.. maybe if it cut one of them off with the green wire i will have no sprak either.. but im not sure

does the ecu send negative ground pulses tot the coilpack..??

if so it has to be grounded before it can reach the coil pack and spark the plugs right..??

so the green wire takes the negative pulse but we have 2 coil wires from our 1997ecu thats why im thinking maybe the only way this will work is with diodes pointing towards the green wire of the Beer Rev limiter.. so it's giving not getting pulses

Hope thiss wil work..
give me your thinking about this option..

Greets Aeren
 
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Since part of the conversation is on here; 2GNT.com Forums - Viewing topic - 420A 1996 ECU PIN PLEASE HELP..!!

I wanted to post up the link to keep info in here for those that may search.

I think our problem is not being familiar with this Bee*R rev thing. As was stated in the link, I don't know of a single wire off the ECU. Now if you cut the center wire (brown/red) off the coil plug, you will lose power to the coils. BUT if you have a single wire off the Bee rev thing, I'm not sure how that would work because just piggy backing the wire would do nothing to stop power and cutting the wire would stop power.

MB
 
Mayb use a tach adapter? why not just go with a launch controll thats tried and true?
 
im having the same problem.... except mine is a pro comp... and my 420 doesnt have rev limit at all ...... but mine says red wire positive on the coil and green and white negative
 
@stevoharris420 I replied to your PM.

Just a bit of info that this thread seems to be lacking. The Bee R rev limiter does not act as a 2 step or launch control for the 420a. It simply raises your rev limiter, regardless of which gear you're in or neutral. My car is a 5 speed though so perhaps you could affix it differently on an auto. *There is apparently a model of this rev limiter that has a wire that can be run to the clutch switch, so when you press the clutch pedal in will switch over to launch control mode, and once you release the pedal it will raise the limiter. I don't have this model though.* This rev limiter is not connected to the fuel system in any way, therefore it controls spark only. Before installing I hope you understand the risk of cutting spark only, as the engine continues to dump fuel in the engine and once it sparks again it can act aggressively. I don't recommend revving all the way to your limiter, and especially not holding it there. Most people want to install an aftermarket rev limiter to achieve the "I can shoot flames factor". But this is terrible for the longevity of your engine. I simply installed mine so I could rev higher, because as we know the 420a makes no power whatsoever in the lower rpm's. Also understand that revving a stock 420a above the stock rev limiter probably won't yield any gains. I would imagine the engine would reach it's flow limit, hence why the stock rev limiter is set where it is. Try doing some flow modifications, such as intake and exhaust first. And it definitely won't hurt to upgrade the valve springs and keepers. With a 242/242 cam setup my valve are floating around 8k. Probably a little earlier but that's when I feel it run out of power. I never rev it out to 8500 (where I have mine set). If I had the right springs I would probably go higher. But you'd never catch me pinning it on the limiter. I did it once while parked at a meet, but the engine didn't seem too happy about it. One good thing about the Bee R is the adjustability. There is a controller that you will need to mount. I mounted mine beneath the dash next to the hood release with self tapping screws. One thing to take note of is the numbers on the controller seemed to be a bit inaccurate for me. You just need to adjust and rev it up to see where you're at. Another thing to take note of is the amount of wire that comes with the controller when you buy it. Mine weren't long enough to reach anything. I had to go buy some automotive wiring to add to it.

Before anyone installs one of these or any other rev limiters I would strongly recommend installing a quality wideband gauge first. The stock 420a injectors don't flow very much, and neither does the stock fuel pump. I ran out of pump before I ran out of injector. This could have been because of the age/wear though. Regardless, you need to monitor your AFR to make sure you can support these extra revs. Too lean and it'll run hot and cook the engine. Too rich and you'll wash the cylinder walls of oil and foul the plugs. Especially in that short time when it's fuel only and no spark.

Another thing to consider. With Megasquirt you can adjust your rev limiter. Anybody who was plans to build or tune their 420a should have a Megasquirt. Don't do what I do, do what I say. I'm like a lab rat of 420a shit. I find out what works and what doesn't. And running a built 420a while being suffocated by the stock ecu is a different animal. If you ever had plans for a Megasquirt in the future I would wait about installing an aftermarket rev limiter. You would end up taking it back out.

Also, mine did not come with any sort of wiring diagram or assistance. It's a universal part.

I need to make an article about this. I just never realized the market for it. I also need to include pictures of where I routed my wires and how everything is hooked up/mounted. That will probably be the next article I wrote on this site once I find the time to put all this information together in a uniform manner.
 
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the stock rev limits shouldn't be exceeded with stock rods. You can run the engine at 7200rpm or what ever the f*** it is, for probably days without the rods breaking.
Get the engine spinning above 7500rpms and the rods won't last long.

and you don't want to be running a catalytic converter either. When it cuts your spark and dumps fuel, if you have a cat, it will start glowing red and the honeycomb inside will melt together. That means the exhaust will be clogged.

stock injectors are 240cc. i can't remember if thats the flow at stock fuel pressure or at the standard 43.5 psi

if you want to shoot flames, you wouldn't want to have the fuel igniting from the engine either. you install an ignitor (spark plug usually) a foot or two from the end of the exhaust.
 
and you don't want to be running a catalytic converter either. When it cuts your spark and dumps fuel, if you have a cat, it will start glowing red and the honeycomb inside will melt together. That means the exhaust will be clogged.

Yea. I was still running the stock cat for a short period of time after I installed my rev limiter. Check this out. Gaskets were fried big time. The cat probably was too.

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Take a look at post #7 on this thread:


(Thank you search function LOL)

I think I'm going to get with @Dsm724 through a PM. I want to see where and why he failed with the Bee R. And I also want to see and know more about the product he used and had success with. Why just make an article about how to use one rev limiter if we could make an article about how to use 2?
 
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