I know this sounds dumb because of how old the car and engines are but do ea81 have rev-limiters anywhere in reline because it dosent seem to be before it. if so how do you make or buy one plus install??

Rev limiters are a race car thing. Not in these old street cars.

If you were to install the SPFI ea 82 stuff on an ea 81 you would have a rev limiter. It simply shuts down at 7500 rpm.

I've never got an EA82 get past 6500 or 7000, not that I went around trying to.

If you were to install the SPFI ea 82 stuff on an ea 81 you would have a rev limiter. It simply shuts down at 7500 rpm.

 

That's valve float 

 

 

AFAIK, EA82 SPFI don't have rev limiters either.

 

 

 

Either way, the valvetrain is the weak link, and while valve float isn't exactly good for anything, it's not terrible either. Let 'er buck.

 

 

If you really do think you need something, there are aftermarket ignition systems that are designed primarily for carbed V8s that could probably be adapted to an EA81 and programmed to cut the ignition at a certain rpm.

as for the second question in your post - here is a link to a unit made for points and OEM electronic ignitions

 

http://www.pertronix.com/prod/ig/drl/default.aspx

Not valve float, I know the difference. I'm talking about 7500 rpm under load. Try it you'll see. First you would have to tune it to actually rev to that rpm and run cleanly.

Rev limiter on a ea81 is the push rods bending and breaking.

Well, there is that:0

 

ea 82. Do a full tune up and put the highest octane fuel in it available to you. When you've got a full tank of the higher octane fuel in it, go full advance on the distributor.

 

Rev it until it simply shuts down while in gear. I't like you have a switch that's been flipped to off.

Well, there is that:0

 

ea 82. Do a full tune up and put the highest octane fuel in it available to you. When you've got a full tank of the higher octane fuel in it, go full advance on the distributor.

 

Rev it until it simply shuts down while in gear. I't like you have a switch that's been flipped to off.

 

I was mostly joking. I've never had an EA82 that could get to 7500, and tried on a regular basis. My EA82s would float somewhere between 6800-7200. Seems strange to me that they would print a 6250 or 6500 red line on the gauge, but program something at 7500.

okay cool because i'm pretty sure it spits a sh** ton of flames hahaha!!! but you cant see them because of the catalytic converter or something, i could be wrong. Plus it is straight piped in between the catalytic converter and muffler, and theres an electric cut out right there!!!        Do we have an anti backfire system on the EA81 engines like on the EA82? Or is there a way to make some wicked flames without engine damage?

Edited January 22, 201610 yr by jdgmbi1

Set it on fire.

My procomp al6 ignition box has a adjustable rev limiter

most CDI ignition module boxes have rev limiters can be wired to ea81 and ea82 ignition systems. they are universal and get wired "in series" with the coil. accel, msd, mallory, to name a few. i use one on all my ea82's with excellent results, more consistent plug burn times and multiple spark below 2500 rpm (i think). however, i dont think a rev limiter is necessary and never actually hit mine. 

Edited January 24, 201610 yr by maozebong

What I described can be peer reviewed. It's not valve float. 7500 rpm under load in the lower gears. It won't pull that rpm in higher gears.

I've had 3 different SPFI Ea82's up to 8100-8200 rpm where they tapered off into valve float. No rev limiter. One was a 92, one was a 88, and one was a 89.

 

There's no real point to having a rev-limiter if it's not making power anywhere near to it's max rpm's and there's little likely hood of it being hurt by a momentary over-rev.

A rev limiter Isent needed on a stock ea82 they just can't burn enuff fuel so when the rev limiter dose kick In the motor sputters from the extra unburnt fuel left in the cylinders from the cdi cutting spark on my rig anyway basicly it floods out the cylinders and it takes a few for the motor to clean out causing a big loss in power I think I have mine set at 7500 but even in first gear pinned to the floor say on a hill climb it won't hit the limiter the only time I've ever used a rev limiter as a tool in any roo was when I had the impreza stuck in deep snow I used it all the time in the scout but that's a whole different beast

my modified CCR EA82T will go past the top of the tach LOL ive had it up to probably around 8750rpm or more and would probably push past that with more porting and a TD04 turbo

i redline my EA82T every day and it seems to like it haha