Hi

 

I have rebuilt the AFH engine to 1.6cc and put it in the felicia. It's running on standard injection and AEE gearbox.

 

It can do a little les than 100mph in 4th gear at 6k rpm but it can't rev the 5th on more or les level road. (don't worry i don't drive that fast if it's not safe)

 

I just want to know what performance i can expect from it as others did built them.

I want to be sure nothing is set wrong as i kinda find it slow for 130bhp as it should have.

 

thanks for your replies.

The maximum speed you are getting now is in perfect correlation with your bad choice of using the old gearbox from AEE. I am referring especially to 5th speed overdrive

Edited 9 January, 201610 yr by RicardoM

I understand that but it's not a standard AFH. I know standard AFH's have shorter ratios.

 

if you look a dyno 1.6 16v hibrid test you have 25% more torque over 3krpm than a standar 1.6 8v can deliver. if that's true it shoul be able to go in the 5th gear too.

 

I had an AEE in the car before this and i know how much power it has. Low down it's a monster and mostly dead above 4k...so an 1.6 afh should do the job after an aee is dead.

It's probably the aee ecu not giving it the extra fuel at a guess.

it's running on stock AFH ecu. AEE ecu would never let it rev to 6k+

Is it possible that the cat of the AEE (yeah I used that) is limiting it so much?

Otherwise it's running smooth and can do in 5th 130km/h with 1/3 throttle no problem.

You should look in here:

 

http://www.briskoda.net/forums/topic/382257-felicia-gear-ratios-for-all-stock-and-sport-gearboxes/

 

Do you have the graphs for power & torque over rpm of your engine?

Also the code of your gearbox and the size of tires.

Edited 9 January, 201610 yr by RicardoM

the car is as original as a felicia 1.6 glx could be except for the AFH under the hood.

 

can't do a dyno test cause sadly there is nobody around here with a rolling road. I will have to take it a bit away for that. That will probably be the best thing to do to know if it's running as it should.

The dyno test I was refering to was done from TeflonTom with same setup years ago. (if i'm right the gearbox was from 1.3 engine)

saw your link - great work gathering all that info!!

 

anyway here's the link to Tom's test http://www.briskoda.net/forums/topic/107541-felicia-14-16v-engine-transplant/page-3

I need to know if your AEE gearbox is manufactured before or after August 1997.

The car is facelifted if that helps. It's a late 98 model.

 

It goes 140kmph at 4k rpm - final drive. (sorry for european units)

I think that shouldn't be a major problem for the afh engine.

Edited 9 January, 201610 yr by pinjon

I had 122mph(gps) in 5th gear when i had my 1.6 AFH with a 1.3 gearbox.

I would say the AEE cat is too small for the 1.6 AFH, i think it uses 42mm piping where you need atleast 50mm piping for your system.

According to my calculations, the AEE gearbox you have now allows you to reach a maximum speed of 157 km/h in 4th and 148 km/h in 5th. The gearbox is designed for better fuel economy at lower rpm. It doesn't take full advantage of AFH engine power peak at 6000 rpm. The gearbox type 14SK from 136M engine is better suited for AFH due to higher final drive ratio.

Edited 9 January, 201610 yr by RicardoM

Fuel filter blocked maybe?

It's probably the aee ecu not giving it the extra fuel at a guess.

Fuel filter blocked maybe?

His engine has enough power. It is just full power is not transmitted to wheels due to a no-match gearbox.

His engine has enough power. It is just full power is not transmitted to wheels due to a no-match gearbox.

You may be right about this but an the AEE engine on the same gearbox was running great and has't got not more torque than a 1.6 AFH. The AEE reached 4000 rpm with ease and at that rpm the afh has full torque too. It should do at least as good as the AEE did.

 

Fuel filter blocked maybe?

thinking about it too. It would show as a bad lambda reading on vcds or not? (as an AFR not right)

 

I had 122mph(gps) in 5th gear when i had my 1.6 AFH with a 1.3 gearbox.

I would say the AEE cat is too small for the 1.6 AFH, i think it uses 42mm piping where you need atleast 50mm piping for your system)

I used a 50mm tubbing. You can cut the AEE cat and fit larger tubbing. I did that.

It's just i don't have a clue how much faster a 1.6 AFH compare to the AEE should be.

If I do a long uphill drive I'm not much faster than I was with the AEE. I think it should pull more or I simply expect too much from it?

Will do an ignition timming check when I find a timming light and change the fuel filter. I don't know what else could be wrong with it.

When I have a chance I Will get it to the rolling road and see.

If you have any other ideas please write it here.

Thanks people

You are talking different things. Acceleration and pull come mainly from high torque. High speed is power dependent.

 

On the other hand, you let us think your engine is running spot on. No ECU errors.

Edited 10 January, 201610 yr by RicardoM

Thanks for your calculations RicardoM. I could try a different gearbox but I don't use the car for racing as so it's a bit better for daily driving as it is with longer ratios.

You are talking different things. Acceleration and pull come mainly from high torque. High speed is power dependent.

 

On the other hand, you let us think your engine is running spot on. No ECU errors.

 

 

that's right yes - no ecu errors.

I may be a bit misleading about the acceleration vs top speed thing but a 25% increase in torque over 3k rpm and 130bhp (in theory) should be a bit faster in every way.

I know somebody that matched a 136M engine with a AEE gearbox. He couldn't get more than 125 km/h in 4th, worse in 5th. The moment he installed the right gearbox, the car got 160 km/h.

I may be a bit misleading about the acceleration vs top speed thing but a 25% increase in torque over 3k rpm and 130bhp (in theory) should be a bit faster in every way.

I didn't disagree with that, but you pointed me to TeflonTom's dyno results. That was misleading. In fact you have no clue what power characteristic your engine has, right?

That's the case yes.

It's just built exactly the same specs as his was that's why I pointed you on his graph becasue I have no way at the moment to properly dyno test mine.

Sorry about not being clear enough.

Edited 10 January, 201610 yr by pinjon

Anyway unless you fitted the diesel box it's totally irrelevant as you should have more than enough power to drive it in 5th..

It sounds like a fuel starvation problem unless you have the distributer way out.