E30 ETA performance chip options - BMW Forum

DeathMetal · 03-19-2004, 10:03 PM

I have n 86 325es with the ETA engine. I would like to put in a chip to enhance performance. I looked on ebay and found many options. There are chips by Dinan, AC Schnitzer , Pro Performance, and others. DOes anyone have experience with performce chips for the 84-87 ETA motors? Please tell me what you think.

Fox · 03-19-2004, 10:12 PM

Only buy a Jim Conforti chip. Its got the best adaptive fuel curve of them all. And of coarse only buy it through our sponsor.

BavAuto sells them i think ?

KC Ron Carter · 03-20-2004, 12:15 AM

buy what you want, but Bavarian has the install procedures on line.

http://www.bavarianautosport.com/Assets/in...hipInstruct.pdf

The ETA engine gets a bigger pop from a chip than any, I repeat ANY other engine.

It will get a 20% increase in horse power and torque.

That an a differential ratio change will wake a ETA up.

Later,

Aether · 03-22-2004, 08:51 PM

Where would a Conforti chip put the redline for an eta?
I've got a birthday coming up...

1985bmw325e · 03-22-2004, 11:04 PM

i believe 5800

Aether · 03-23-2004, 03:49 PM

From Bimmerworld.com, the unanimously-suggested Conforti chip (24hp, 28lb-ft, 5300) requires 91 octane gasoline or higher. I wouldn't mind spending $250 for that kind of power, but paying for it over and over again at the Premuim pump would be too much for me. Anyone know if this is actually correct, or if it'll run worse on lower-grade gas?

pogiboy9 · 03-24-2004, 06:34 PM

For my '84 eta I keep asking, its a solder on chip correct? all would i have to do is CHANGE THE WHOLE ECU to a later model right ? then just get one of the JC chips.

Thats my understanding, unless JC chips are available for '84 325e

KC Ron Carter · 03-24-2004, 08:23 PM

Yep the 1984 027 ECU has a soldered in chip.

I am running a Jim Conforti chip on my 1984 and it is great.

I use 87 octane and it never pings.

I repeat I use 87 octane and it never pings.

I own a Dyno and I will guaranty you that using lowest octane possible provides more horse power.

Later,

DeathMetal · 03-24-2004, 08:49 PM

KC, what differential do you have? Did you switch yours out? if so, what performance gains have you achieved with it?

BimmerKris · 03-24-2004, 10:25 PM

Quote:

Originally posted by KC Ron Carter@Mar 24 2004, 10:03 PM
Yep the 1984 027 ECU has a soldered in chip.

I am running a Jim Conforti chip on my 1984 and it is great.

I use 87 octane and it never pings.

I repeat I use 87 octane and it never pings.

I own a Dyno and I will guaranty you that using lowest octane possible provides more horse power.

Later,

Are you sure. I have run premium in my car from day one, i have used regular a couple of times and noticed a slight decrease. Not huge but enough to notice. I just bought a nock off chip from ebay for like 40 bucks. we'll see what happens. I'll let you guys know

DeathMetal · 03-24-2004, 10:34 PM

Quote:

Originally posted by BimmerKris+Mar 25 2004, 12:05 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (BimmerKris @ Mar 25 2004, 12:05 AM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-KC Ron Carter@Mar 24 2004, 10:03 PM
Yep the 1984 027 ECU has a soldered in chip.

I am running a Jim Conforti chip on my 1984 and it is great.

I use 87 octane and it never pings.

I repeat I use 87 octane and it never pings.

I own a Dyno and I will guaranty you that using lowest octane possible provides more horse power.

Later,

Are you sure. I have run premium in my car from day one, i have used regular a couple of times and noticed a slight decrease. Not huge but enough to notice. I just bought a nock off chip from ebay for like 40 bucks. we'll see what happens. I'll let you guys know [/b][/quote]
Which chip did you get? the one by ProPerformance?

spiff325is · 03-25-2004, 12:00 AM

my 89 325iS is stock, and the manual and other books say I need the middle stuff, Premium, but because the gas prices are up downhere, I use regular now, and I dont feel a difference. and I run my car ahrd every other day or so.

Fox · 03-25-2004, 05:11 PM

Lower grade gas detonates more easily than high octane gas.

And no your 325is doesnt need anything higher than 87 octane. These engines (ill hate bmw forever for doing this) have very low compression pistons. 8.8:1. ALmost nothing knocks in these. However very nice turbo compression....

Aether · 03-25-2004, 08:05 PM

So even though the compression in the November 86+ Etas is only like 9.0:1 or something, the Conforti chip can run with 87 or 89 octane unleaded and nothing will go bad, correct? I know I'm being neurotic, but (1) this is my first car, (2) this is my first engine modification, and (3) my father will castrate me with a pool stick if I break anything.

DeathMetal · 03-25-2004, 08:45 PM

Quote:

Originally posted by Aether@Mar 25 2004, 09:45 PM
So even though the compression in the November 86+ Etas is only like 9.0:1 or something, the Conforti chip can run with 87 or 89 octane unleaded and nothing will go bad, correct? I know I'm being neurotic, but (1) this is my first car, (2) this is my first engine modification, and (3) my father will castrate me with a pool stick if I break anything.

Castration with a pool stick is virtually impossible for anyone other than a medical professional. You have nothing to worry about.