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MD · Post by MD » Thu Mar 09, 2006 10:13 pm

As most posting concernning the Motronic topics seem mostly unanswered, I don't hold much hope but I will post this anyway.

Like many guys that have done conversions, I used a 3.0l from a 164 and the motronic that came with it. Unfortunatey, it has a rev limiter that kicks in around 6250 because I beleive it came from an automatic.

Anyone know how to disarm the limiter or convert it to go another 1000 rpm higher? Thanks.

Mats · Post by **Mats** » Thu Mar 09, 2006 11:36 pm

You need to remap it 1000 rpm higher, it's all in the code.

Dennis · Post by **Dennis** » Fri Mar 10, 2006 12:59 am

Hey Mike,

Take a look at squadra-tuning.com. He has developed chips for the 164 aswell. I have used his product in two cars and it's really really good. Email him and be convinced

MD · Post by MD » Fri Mar 10, 2006 2:03 am

Mats

I thought it was a different pin out connection involved only not programming. Are you sure about this ?

Dennis

Had a look at the suggested site. Interesting. The chip is an improvement I agree but not at all sure if it is worth stuffing about with to get to 7 grand . Seems like it makes most grunt between 4.5-5.0 krpm and it definitely runs out of breath at the top so I think I am chasing my own tail here for a road car.

(Mind you the 7 grand howl is enough to compensate for any real speed gain he he

)

What's your opinion going the higher revs guys? A wank or worth it?

Mezevenf · Post by **Mezevenf** » Fri Mar 10, 2006 2:13 am

MD wrote:A wank or worth it?

Both

Go for it.

Mats · Post by **Mats** » Fri Mar 10, 2006 3:27 am

I missed the part about it being from an automatic...
But I don't know why it should be any different then a manual though. Try a manual box and see what happens.

MD · Post by MD » Fri Mar 10, 2006 1:34 pm

Mats

Yes seems like the only sensible thing to do and I know just the fella who's got one.

Daniel- help !

Post by **Zamani** » Sat Mar 11, 2006 4:43 am

My dad has a 164 3.0 with S-cams and a squadra chip. Man that thing hauls! Get the chip!

However, I do think the stock 3.0 cams are low revving in nature. Get better cams.

MD · Post by MD » Sat Mar 11, 2006 12:45 pm

Zamani, I appreciate what you and Dennis are saying. However, I was just trying to get the best out of what I already have for now. The reason is that my final aim for the car is to supercharge it so I intend to match all the modifications together for the express purpose. I don't need to tell you all the changes that should be made I am sure.

The first thing I am going to invest in when it get all the mods is a welded pair of undies to make sure nothing runs down my leg during the launch test drive he he

Hey, thanks for your input just the same.

Barry · Post by **Barry** » Sat Mar 11, 2006 11:13 pm

Mike,We are able to remove the rev limiter here in S.A. for you.
Its a costly affair(about 650 Au dollars )and the shipping of getting your box here..
The chap(or chump should I say..

)has the monopoly on this machine from Italy and charges like crazy-but it can be done..

We had the gta boxes done a few years ago.

Post by **Zamani** » Sat Mar 11, 2006 11:40 pm

Wow! In that case, just get a chip from Squadra. I think it's a lot less than AUS$650. His chips are 1st rate.

MD · Post by MD » Sun Mar 12, 2006 1:12 pm

Thanks guys.

Daniel · Post by **Daniel** » Sun Mar 12, 2006 5:58 pm

No help here Mike.
Both my 3.0 (12 & 24v) were ex autos.
I was hoping that if the computer didn't see the auto box, it would rev higher. The 24v computer seems to be the same part number for manual and auto yet the manual supposedly revs 500 rpm higher. Not sure of the 12v computer part numbers but I think manual and auto are same.
Looks to me like it's a case of jumper a couple of pins to fool it if leaving the box pins unplugged doesn't work.
I've got to admit, I've never had the 12v even to 6000rpm. It's just got soooo much torque through the range and is only street driven (mostly by my dad). The 24v is still not in and running, so no idea there.

Anyone else done a 164 to 116 conversion overcome this ??

MD · Post by MD » Sun Mar 12, 2006 8:15 pm

Thanks Daniel. I felt sure you'd have an answer.

Like you I seem to think there is some sort of pin out combo and not programming. Or even a resistor change at a connection point.

It didn't start off thinking there would be too much power up there without some headers to make use of it and there isn't. But like Bernie says, it's a howl man.

Unless it is within a racing context, a 5 or so hp gain here or there is not worth poncing about with. Not that I could expect that anyhow because my dyno results show that my engine develops its maximum power as is so its just boy racer talk really.

Anyhow, if I stumble on anything, I will let everyone know. I just sent off an email to Bosch Australia. Let's see what they have to say besides p'soff. Meantime here's a diagram I got a couple of years ago but no info with it.

Rev limiter in Motronic 4.1-Alfa164