TDi limp mode vs software

[G-spot]

fark me 260, what revs you running then?

Round about 4500-5000, I know 240 the revs sit on 4200, But you only glance at the cluster now and then at that speed.

[BIGMIG]

How long did you chase the 320d for?

[SoDub]

All these speeds were done on private roads of course...just saying.

My mates all call me granny - I have not and don't think I ever will clock this car. If I was 18 I would say lets do it right now! I have turned into a consumption whore hahah -

[Crawler]

How long did you chase the 320d for?

From pull off till that speed I was in front, but when he eventually passes I could not catch again, as my car would not go further, was for a couple of offramps lol

[dazza]

On the TDI's if you are close to top speed and you are sitting at 4500-5000rpm for a while I beleive you will get limp mode of sorts as the TDi's are not meant to be driven at that sort of RPM for extended periods of time.

I had the same issue on the IC TDI once when I decided to be wreckless and do silly speeds to see what I could manage. I will not comment on speed done but the car went into limp and I had to stop switch off and on again before I had boost again...Thought I had killed the turbo!

[BIGMIG]

I think you hit the ecu temp limit. Obviously with software you are running more fuel than normal so with more fuel comes higher EGT's. I rate you banged it for to long. Iv heard that's one of the ways our turbos like to pop. To hot for to long. Personely I don't do very high speeds. Yes the occasional higher speed every so often but not near 200. I like short sprints.

[HendrikCTI]

Now this is one thing that really irretates me from VW.
Why build a car that can do 220 but you cannot go there because it will either break or overheat. Why then not just build the car to go top speed of let's say 180 and you don't have problems.

[Yakuza Racer]

On the TDI's if you are close to top speed and you are sitting at 4500-5000rpm for a while I beleive you will get limp mode of sorts as the TDi's are not meant to be driven at that sort of RPM for extended periods of time.

I had the same issue on the IC TDI once when I decided to be wreckless and do silly speeds to see what I could manage. I will not comment on speed done but the car went into limp and I had to stop switch off and on again before I had boost again...Thought I had killed the turbo!

kakest feeling when going into limp the first few times lol

[Deranged_9n3]

fark me 260, what revs you running then?

Round about 4500-5000, I know 240 the revs sit on 4200, But you only glance at the cluster now and then at that speed.

Me thinking - cluster is out by light years

[M@rk]

fark me 260, what revs you running then?

Round about 4500-5000, I know 240 the revs sit on 4200, But you only glance at the cluster now and then at that speed.

Me thinking - cluster is out by light years

+10000

[VGTI]

According to Car test i was reading 219 while doing a true 208

[SoDub]

According to Car test i was reading 219 while doing a true 208

So realistically on a level road a stock car will read 220 on the clock so a mapped bugger should do a little bit more...

[M@rk]

According to Car test i was reading 219 while doing a true 208

So realistically on a level road a stock car will read 220 on the clock so a mapped bugger should do a little bit more...

stock Tdi can do that yes but if it's mapped it doens't mean it will do 240 now , it may do 240 but it how fast you get to 220 or 240 that the dff between a stock Tdi and a mapped one

[SoDub]

According to Car test i was reading 219 while doing a true 208

So realistically on a level road a stock car will read 220 on the clock so a mapped bugger should do a little bit more...

stock Tdi can do that yes but if it's mapped it doens't mean it will do 240 now , it may do 240 but it how fast you get to 220 or 240 that the dff between a stock Tdi and a mapped one

Totally understand. Software shouldn't change what it will do but will change the time it takes to get there. But if the car is geared to theoretically do 260, software will give it that little up in hp it needs to get above the 220 mark.
The car should be geared for a top speed of over 260 at 5000 revs.

With the right hardware and software for instance: with a C220 cdi turbo and decent FMIC and map you should be able to clock the car with ease then and it should get there quicker.
I think the main issue in the higher speeds on the tdi's is the lack of hp.

[G-spot]

Round about 4500-5000, I know 240 the revs sit on 4200, But you only glance at the cluster now and then at that speed.

Me thinking - cluster is out by light years

+10000

why?

[AlexTDi]

Guys rather test at ODI if possible with GPS's on cause that's your true speed.

My clock is always about 10km/h out from the GPS at speeds greater then 80km/h

I've done 220 odo but 209 GPS speed, Could of probably gone for more but I was really keeping it planted for too long in my eyes, I've done it twice, second time I only managed 205 GPS but I had quite a bit of extra weight in the car +-150kg. That's the only two times I've ever gone over 180km/h and I've never hit limp mode because of that.

This was all when I was completely stock.

[Crawler]

my gps was on at the time shows top speed 218

[AlexTDi]

my gps was on at the time shows top speed 218

And Odo? I'm sure 218 with software is more then possible but 260 Odo should atleast be 245 on the GPS

[SoDub]

218 on GPS means about 230-235 on the clocks. Remember Crawler has a SMIC and the temps lately have been rather warm. At that speed and those revs heatsoak is imminent. If you had to run logs during that run I'm sure the boost was not at its optimum. In winter I think it would have gone more for sure!

[Crawler]

jip just past 230, so lesson here is get FMIC and do another run in 0 degrees, if all fails get CD220 LOL

[AlexTDi]

jip just past 230, so lesson here is get FMIC and do another run in 0 degrees, if all fails get CD220 LOL

That's the way but 330D

[Deranged_9n3]

why?

Because 260 is impossible on a tdi cluster !!!! Well if you can achieve it on cluster , I'd like to see it on the GPS !!!! And if you think I'm still being silly , we can mabe meet up and have that topend checed out !!!! Unless you doing it in a mineshaft lol !!!!! Doesn't matter how many HP you push out , the gearing of your gearbox will remain the saim final drive !!! Unless there's something done ??

[SoDub]

240 on the cluster is at 4500 revs - still 1000 revs till the "limiter" kicks in. 260 should be at around 5000rpm then...
http://www.youtube.com/watch?v=dd-A8eIBRNs&feature=plcp
And that's someone on the forum I think... - and It is stock. I still don't think its a good idea to keep a tdi at constant full throttle like that at over 3500 revs! That manifold and turbo must have been glowing red after that run!

[Deranged_9n3]

Max stock was about 240 speedo speed, revo 1 and 2 ive taken over 260 (with revo 2 the acceleration fron 190 -240 is actually quicker than from 160-190, wierd)

WOW THIS CAB IS HAULING ASS

OMG this must be a real sleeper of note

[G-spot]

why?

Because 260 is impossible on a tdi cluster !!!! Well if you can achieve it on cluster , I'd like to see it on the GPS !!!! And if you think I'm still being silly , we can mabe meet up and have that topend checed out !!!! Unless you doing it in a mineshaft lol !!!!! Doesn't matter how many HP you push out , the gearing of your gearbox will remain the saim final drive !!! Unless there's something done ??

Well... your argument is flawed, 260 is very possible, the number is there, the needle goes to it, so its very possible. Also the gearing in your gearbox does not limit you, The revolutions of your motor does (rev limiter). I am yet to hit the rev limiter in my car. I never said I did it on a GPS, The comment in question was that the clocks were filled. And I have. a few times. And I know someone who had a stock SL that has done it too.

I dont think you are being silly, Just a little mis informed...