Tuning Module

[LeonCupraTdi]

Hi, its my first post on here so go easy on me!

I've just fitted one of these to my 04 plate Leon Cupra TDi 150

http://cgi.ebay.co.uk/Diesel-Tuning...ryZ32094QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

its only on a temporary basis while I decide which remap to go for - i know that no one on here has a good word to say about these kind of resistor modules which plug into the fuel sensor from what ive read of other threads but wanted to ask about this anyway.

I know a lot of you will say its a waste of £20 but i thought it was worth a go for that price and it has definately made a difference in torque (not to mention smoking) and the increased torque is causing my clutch to slip between 2k and 2.5k revs in 3rd, 4th, 5th & 6th then it settles down again - ive read up on this on other posts and it seems fairly common.

The reason for my post is that because of this clutch slip with the module its putting me off the remap!! Should i still get the remap or does it suggest ive got a weak clutch so should maybe just stick to standard? or is it because this module is causing a big peak in the torque where as a remap would be a more smooth curve?

its not just in the cold by the way but its not every time i put my foot down, its just now and again.

Thanks
Ben

 

[basstard]

if you find someone that can tailor the map to your likes then you can get a nice smooth curve. muddyboots here has done it this way

 

[sssstew]

yep its the tuning boxes totally blind way it increases performance, where as a remap can take into account the clutch and not dump so much in at 2k rpm.

 

[devonmikeyboy]

Sorry people i dont agree. PD TDI clutches don`t like remaps very much since they cannot cope the extra torque produced unless you "drive around the problem" which to me makes the whole point of getting the remap pointless. Anyone with a PD TDI car that gets it remapped and drives quite hard must be aware that an uprated clutch will probably be needed sooner or later. Think about it how many times do you see a diesel slipping clutch thread on here each week.

 

[basstard]

muddy got his map tailored to avoid clutch slipping,,,

 

[LeonCupraTdi]

devonmikeyboy - Did you have clutch slipping problems then with all the mods you had or did you upgrade the clutch too?

I've been emailing Nigel from angeltuning and he says they can customise the remap to exactly how i want it (for £310 + VAT) as i told him i would be interested in trying to get more MPG on my commute to work as well as having more power when i needed it rather than just going for ultimate bhp.

So many people seem to say different things its so hard to know what to do!! (when you dont have loads of spare cash to throw at it)

 

[LeonCupraTdi]

Oh and i forgot to mention the first day i drove to work with the module on i averaged 66.7mpg per the compter!!!!!!

its a 33 mile trip 25 of which is motorway and dual carriageway. is this possible or is it lying to me?

 

[basstard]

tuning boxes notoriously fool the trip computer,,,

 

[sssstew]

yep agreed, i got all excited when i first fitted my box ages ago, but upon further monitoring it was using the same if not a little more fuel, but i did have it cranked to the max!

 

[devonmikeyboy]

devonmikeyboy - Did you have clutch slipping problems then with all the mods you had or did you upgrade the clutch too?

I've been emailing Nigel from angeltuning and he says they can customise the remap to exactly how i want it (for £310 + VAT) as i told him i would be interested in trying to get more MPG on my commute to work as well as having more power when i needed it rather than just going for ultimate bhp.

So many people seem to say different things its so hard to know what to do!! (when you dont have loads of spare cash to throw at it)

Yes i did need to up rate my clutch. I bought a Helix drive plate and pressure plate plus i scrapped the DMF for a SMF.
If you go to a custom mapper instead of the usual Revo/Custom Code route,get it mildly tuned and dont push it to hard the clutch could be OK but to me that makes the whole point of getting it mapped abit pointless. Personally if i was going to spend that amount of money on getting my car remapped i would want it to make as much power as possible even if it did mean having to spend a few hundred pound more on getting an up rated clutch fitted which could handle the power. The clutches fitted to diesel cars are the weakest link in the cars whole system even brand new cars quite often seem to get clutch slip in cold weather. What happens if you get a mild map then the clutch goes? You will still need to replace it.Your clutch might start to slip 20,000 miles on, nobody knows how weak your clutch is. I believe in doing things properly so if your going to map it for more power get as much as you can and get an uprated clutch disc, you will never regret it.

 

[basstard]

I see your point mikey but the fear I got is: I replace the clutch and put in something which is bombproof, then start modding the engine to the extreme and the thing starts pushing out more than 450Nm,,, the clutch is ok, now either you spin your wheels every acceleration or if you can get grip everytime [hypothetically] all the strain is on the gearbox,,, after a certain level, something has to get broken, it's physics,,,

 

[devonmikeyboy]

Yes something will always brake if you push stuff to the limit but i am talking about just getting a remap no more. A standard Revo/C.C etc remap shouldn't put that much strain on the car apart from the clutch which is a weak part even on new cars.
I hope your not saying i mod my cars to the extreme Basstard, i just give them a few "tweaks"

 

[basstard]

yes, a remap and a clutch after all isn't that much,,,

about your cars,,, well, let's just say that 246hp from a 1.9, with the small detail of it being a diesel is quite enough don't you think????

 

[muddyboots]

muddy got his map tailored to avoid clutch slipping,,,

Well it will be when Mr Coe sorts me a tailored Upsolute map out....currently slipping anywhere between 1900-3000 rpm !
Have logged the torque figures from the ECU through the rev range, so I can see at what torque level the clutch lets go, and get the map adjusted accordingly.

Mind you, have got a crappy tankful of fuel today - feel sluggish, more smoke than usual and - the clutch slip has stopped !

 

[devonmikeyboy]

yes, a remap and a clutch after all isn't that much,,,

about your cars,,, well, let's just say that 246hp from a 1.9, with the small detail of it being a diesel is quite enough don't you think????

Don`t know what you mean mate?

 

[basstard]

thought you already did that tailoring muddy,,,

btw, are you sure you can trust the torque sensor? IIRC there were some probs once the car was remapped,,,

you lucky pd dogs,,, if I had a torque sensor I'd be doing power and acceleration calculations one day and the next too,,,

 

[muddyboots]

Well I'm not sure how accurate the ECU torque figures are, but they look right. Reckons it's peaking around 290-295lbft which is in the right ballpark.

They're good enough to know how much of a reduction to ask for anyway.

Oh, and also going to get a stronger top-end too

 

[basstard]

I'd like to know the maths to know what torque figures are to be expected compared to engine size, breathen air and injected fuel,,,

 

[Stephenpalm]

Yes i did need to up rate my clutch. I bought a Helix drive plate and pressure plate plus i scrapped the DMF for a SMF.
If you go to a custom mapper instead of the usual Revo/Custom Code route,get it mildly tuned and dont push it to hard the clutch could be OK but to me that makes the whole point of getting it mapped abit pointless. Personally if i was going to spend that amount of money on getting my car remapped i would want it to make as much power as possible even if it did mean having to spend a few hundred pound more on getting an up rated clutch fitted which could handle the power. The clutches fitted to diesel cars are the weakest link in the cars whole system even brand new cars quite often seem to get clutch slip in cold weather. What happens if you get a mild map then the clutch goes? You will still need to replace it.Your clutch might start to slip 20,000 miles on, nobody knows how weak your clutch is. I believe in doing things properly so if your going to map it for more power get as much as you can and get an uprated clutch disc, you will never regret it.

Devonmikeyboy, I have a pd engine and recently paid for the revo remap.
I was a little worried that all that you have advised above, looks like it will cost me quite alot more money due to my need to improve.
I must admit that i do not know what Dmf and smf are, approximately how much am i looking at for the new clutch, and pressure plate?.

 

[basstard]

waiting for the clutch to get shot before changing it make much sense to me.
drive around it if you want to save money, or thrash it all day long if you got money burning into the wallet,,,

dmf stands for dual mass flywheel which is stock on our cars.
there are two versions about it's job [this still needs to be clarified]:
1-it is used to preserve the gearbox from big torque spikes from the engine
2-damps vibrations from the engine at low rpm at start up [300-500 rpm]. these vibrations are in the resonating frequency range of the gearbox and could cause big damage to it if not dampened,,, at this point one question arises: if I go smf [single mass quite obviously] the vibrations are not damped but what if I start the engine with the clutch down [which I do anyway]??