Lack of Power?

[darkomtc]

Hello,
I am just creating this post to confirm that nothing is wrong with my car... since I am a beginner.
Basically, I don't have any issues, but at low revs, it seems that car is lacking some power/torque. People who tried my car say that they feel it, based on their previous experience.

Can anyone with Seat Leon 2010-12 77kw(105hp) 1.6 TDI confirm that car struggles (vibrates) if changing gears too quickly:
2nd gear before 20km/h,
3rd gear before 40km/h,
4th gear before 60km/h,
5th gear before 80km/h,
even though board computer asks for a gear change before that.

 

[Ninjakebab]

That's a lot of struggle for a diesel, considering that those should be kinda high revs. Those look more like gasoline range shifts.
Sounds weird. At least your engine seems to be one that can gain 20-30HP from a little optimisation at a tuner.

Can't say anything more, since I don't have a Leon or a diesel.

 

[darkomtc]

That is actually really low rev... Values mentioned above are all around 1400-1500rpm, and there's no problem with driving. Anything below that is with a lot of vibrations. 1300rpm is kinda bearable, if I'm alone in the car (less weight), but still has "struggling/stalling" sound.

I have already chiptuned it to 140hp. It did gain a lot of power at the top end, but 1400rpm and below vibrations still remain.

 

[Ninjakebab]

Did you get a readout of the dyno? That should show you on paper what is going on at those revs.
Diesels do have a large torque falloff as soon as you go below 1500 ish

 

[darkomtc]

I'm planning to do it.

Diesels do have a large torque falloff as soon as you go below 1500 ish

Thanks for info, sounds about right then.

 

[R3k1355]

What is this chiptune that you refer to?

If it's one of those plug in boxes, then it's probably causing your problems.

 

[darkomtc]

What is this chiptune that you refer to?

If it's one of those plug in boxes, then it's probably causing your problems.

It's ECU remap. I had the same "problem" before remap also, so it's not the chiptune that's causing it.

 

[DomcoFR]

Hello!
I had the same problem on my MK2 Leon also a 1.6TDI and the only fix i found was to get a chiptune but not for power ,but for low end torque . Other than that just push the car into slightly higher RPM´s (when its fully heated up). The 1.6TDI is a great engine that revs more than other tdi engines a so dont be afraid to push it a bit more. If you regularly drive below aprox. 1500RPM´s you will clog up your EGR valve and DPF. (Had to change my EGR because the previous owner was an old man who drove it around the city)

 

[darkomtc]

Hello!
I had the same problem on my MK2 Leon also a 1.6TDI and the only fix i found was to get a chiptune but not for power ,but for low end torque . Other than that just push the car into slightly higher RPM´s (when its fully heated up). The 1.6TDI is a great engine that revs more than other tdi engines a so dont be afraid to push it a bit more. If you regularly drive below aprox. 1500RPM´s you will clog up your EGR valve and DPF. (Had to change my EGR because the previous owner was an old man who drove it around the city)

Alright, noted! I just wanted to confirm that nothing is broken and that it's normal. I usually drive it over 1500 rpm, so I should be good.
Thank you very much.

 

[darkomtc]

Just if anyone finds it informative, I rechecked the revs at mentioned speed and gear, and these are more accurate:
I feel vibrations/lack of power below:
25km/h@1300rpm in 2nd gear,
40km/h@1300rpm in 3rd gear,
60km/h@1300rpm in 4th gear,
80km/h@1300rpm in 5th gear

From information I gathered so far, this is completely normal.

 

[kip1956]

Just if anyone finds it informative, I rechecked the revs at mentioned speed and gear, and these are more accurate:
I feel vibrations/lack of power below:
25km/h@1300rpm in 2nd gear,
40km/h@1300rpm in 3rd gear,
60km/h@1300rpm in 4th gear,
80km/h@1300rpm in 5th gear

From information I gathered so far, this is completely normal.

I have a 2011 Ibiza FR 2.0tdi and have noticed that it doesn't really like 6th gear under 60mph despite the onboard computer telling me to change up . at 60mph my rev's are around 1600rpm if that . I had an Audi A1 with the same engine etc and that was nothing like this and would tolerate 45/50mph in 6th . My car has had an egr delete and mapped out , dunno if it also had the power changed but it does seem to have more power than my old A1 . Its not a problem for me and I bet it will make for a good economical motorway cruiser .

 

[andylong]

I have a 1.6tdi.
The vibrations are normal and result from loading the engine at low revs.
The display says change up too early really for a pleasant experience.
Gearing differences from car to car and Thier weight might make cross vehicle comparisons tricky.
1300 rpm is pretty low to be loading an engine, even a diesel I'd suggest.
I'll have a lil play on my way home from work and see if I see the same results

 

[andylong]

I got similar results to those already posted.
I think it's just the low revs.
It must be hard for a turbo at low revs to produce the boost you need for low rev power. Even with a remap. You cant make boost without revs