Difference Between 1.9 Mi16 Versions

[Francesco 2 1 Cars]

Is there anyone who knows how you can see the difference between the 148Hp and the 160Hp 1.9 MI16?

 

I just bought myself a MI16 engine and want to know which one I have.

[Mandic 0]

Do a search mate... has been covered millions of times.

 

On the left side of the block, where block meets the head, there should be a small metal plate containing engine code;

 

DFW = 148Hp

D6C = 160Hp

 

Cheers

 

Ziga

[Francesco 2 1 Cars]

Thanks Ziga,

 

I did the search but can't find it. The engine codes story I know, so I will ask more specific.

 

I am told that you can also see it by the numbers on the cam pulleys.

A 2 on both cam pulleys should be the the 160hp version and a 2 and 4 on the cam pulleys should be the 148hp version.

 

I have engine code DFW = 148hp. BUT the cam pulleys have a 2 and 3 on them. As I'm told a 2 and 3 on the cam pulleys should be a BX 16V engine = 160hp.

 

So as you can see I'm kinda confused wich one I bought. I got the engine out of a 405 MI16. As the car was close to going into the schredder, there was no historie with it anymore. I was just in time to remove the engine, but the car went in the schredder right after removal, so don't have any clues to find it out by chassis number, number plates or anything.

 

Anyone who can point me in the right direction how I can find out?

Edited July 26, 2008 by Francesco

[mattmk1 0]

The DFW engines have different pistons which gives them slightly lower compression. They also have CATs and knock sensors. Think the lower power is due to emissions regs.

 

Not sure about the timing pulley numbers, most mi's ive had apart have always had a mixed set/pair or pair of twos. Think 3 on the inlet is sign of a DFW

Edited July 26, 2008 by mattmk1

[Mandic 0]

I am told that you can also see it by the numbers on the cam pulleys.

 

D6C, the 160Hp versions were non cat with Motronic 4.1 (also known as 2 row ecu). Then they changed that to Motronic 1.3 (AKA 3 row ecu), which has knock sensor. As for the pulleys, early engines had no2 exhaust and no4 inlet pulley, which with ECU change changed to no2 pulley for both inlet and exhaust.

 

The DFW, had 148Hp with CAT and Motronic1.3 (3 row ecu). They also had lambda sensor. The drop in power was due to no3 inlet pulley, exhaust stayed the same with no2.

 

They also had slightly thiner piston crown. D6C had CR 10,4:1, where DFW had 9,5:1.

 

 

Hope it helps,

 

Cheers

 

Ziga

[pete1986 2]

Sounds like you've got a dfw mate. Same happened to me - bought the engine then fouind out what it was. I pretty sure dan taylor put a no4 pulley on mine when doing the conversion which helps a little bit. If you have the engine out then you could just swap the pistons for d6c ones if liners are ok. Or you can deck the block/liners or use a thinner copper gasket to get the CR up. Theres loads of info on Peter T's website

 

Another thing you can check is the ecu number, dfw one ends in 161 iirc.

[Francesco 2 1 Cars]

Thanks all, I also checked the ECU number (= 161) and I have definitive a DFW.

 

Very useful website Pete, loads of information. Will read it a copple of times again to understand it all, but it is possible to increse power/torque to D6C performance.

[Francesco 2 1 Cars]

Anybody know how much hp a dfw will have if you don't make any changes, except a exhaust system (Magnex) without the cat.

Edited August 3, 2008 by Francesco

[Rom 0]

D6C, the 160Hp versions were non cat with Motronic 4.1 (also known as 2 row ecu). Then they changed that to Motronic 1.3 (AKA 3 row ecu), which has knock sensor. As for the pulleys, early engines had no2 exhaust and no4 inlet pulley, which with ECU change changed to no2 pulley for both inlet and exhaust.

 

The DFW, had 148Hp with CAT and Motronic1.3 (3 row ecu). They also had lambda sensor. The drop in power was due to no3 inlet pulley, exhaust stayed the same with no2.

 

They also had slightly thiner piston crown. D6C had CR 10,4:1, where DFW had 9,5:1.

 

 

Hope it helps,

 

Cheers

 

Ziga

 

 

Not sure how much a decat will bag, never tried myself. Id guess around 10 bhp, just from lack of restriction. Assuming it runs fine without it, and doesnt compensate in some way by not having a lamda reading.

As has been said before though, standard exhaust systems are very good, and fitting aftermarket ones can lead to a loss of power.

Edited August 3, 2008 by Rom

[pugman211 0]

you have the same engine as me. it may not be the best bhp engine, but peterT said to me the No.3 pulley helped in some way. Also, 161 has a good map inside it aswell, as mine ticks over perfectly and starts first time etc.

 

DFW also easier to make turbo as the lower compression as standard will help etc, so its not the end of the world just becuase you have the lower output engine!

 

Why dont you get it all up and running (if its not already done), then get a set of pete's cams and chip upgrade, plus you dont need the cat, just have the lambda sensor plugged in, that will make decent power on standard injection!

[Francesco 2 1 Cars]

Thanks Pugman, that's precisly what I'm gonna do. I have driven a 205 GTi with a DFW from a BX. It is very fast and fast enough to start with. So it's gonna be rebuild and I will go for some upgrades.