Guest Crewdy Posted September 23, 2005 Report Posted September 23, 2005 Has anyone fitted one of these, if so do they work? Does it increase power up to 25% as claimed or is it another one of those that you spend a fortune on, shags your motor up and invalidates you warranty. Red i Tuning for the VAG PD engine Cheers Crewdy Quote
wytonpjs Posted September 27, 2005 Report Posted September 27, 2005 Oh come on - someone must have an opinion :huh: or better still - KNOWLEDGE :huh: Having a shed to drag (with a dicky turbo) I'm kinda of interested :huh: Quote
Guest marcusheawood Posted September 27, 2005 Report Posted September 27, 2005 ...Get a VR6 then! Ace shed-dragger extraordinaire... :huh: Quote
GSMGuy Posted September 27, 2005 Report Posted September 27, 2005 I personally have a Speedbuster box fitted to my 115 Auto, and what a difference it makes (or did until current, but unrelated probs) They ain't cheap @ around Quote
GSMGuy Posted September 27, 2005 Report Posted September 27, 2005 Just had a look at the pages you linked to, and tbh, I would steer clear... That box looks like a posher version of the cheap resistor mod on the temp sensor, to fool the engine into over fuelling..... Mine plugs into the injector harness rather than the temp sensor, and has a seperate 12v supply, it increases fuelling across the range and is fully programmable... That "may turn on the diagnostic light/store fault codes etc" is bollox - mine has nevr done this on my gal or the previous Audi's and Citroen/peugeots.... A completely different setup to the one you are looking at... Mike Quote
Davetheref Posted September 28, 2005 Report Posted September 28, 2005 The Redeye has been covered on here a few times now. I have had one fitted for arround a year now and it does seem to make a bigf difference. yes I know that it really fools the engine into thinking its running cold etc. and I do get a little more smoke at times but when I have to take it off for a service etc at Frauds, I really notice the power has dropped again. Quote
tim-spam Posted September 28, 2005 Report Posted September 28, 2005 As for pulling caravans, it's torque that matters and not power. TDI - 310Nm at 1900rpm, VR6 - 270Nm at 3000ish rpm. Stick with the diesel. Quote
MrT Posted September 28, 2005 Report Posted September 28, 2005 As for pulling caravans, it's torque that matters and not power. TDI - 310Nm at 1900rpm, VR6 - 270Nm at 3000ish rpm. Stick with the diesel. Utter rubbish that would fail GCSE physics. Power = Force x Velocity or Power = Torque x Angular Velocity Power is the rate that work can be done. The TDI produces more torque at the crankshaft but far less at the wheels as it has a different gear ratio. Quote
Andrew T Posted September 28, 2005 Report Posted September 28, 2005 I think at this point we should be reminded of your previous ruminations on this subject involving a Hamster. Quote
MrT Posted September 28, 2005 Report Posted September 28, 2005 Or a pushbike which has ~175Nm at the crank. Fair torque but f'all use for pulling a caravan. Quote
tim-spam Posted September 28, 2005 Report Posted September 28, 2005 MrT, I never claimed that a TDI would tow a caravan more quickly than a VR6 - a VR6 would definitely be able to pull a caravan at a higher speed than a TDI, as it has more power, but in the real world where a TDI can easily cruise at 70+ mph with caravan in tow, that is of academic interest only. As regards gear ratios, I think you will find that there is little difference between a VR6 and TDI in the lower ratios, so the TDI would pull away more easily and with far less clutch slip required. In addition, so long as the engine is running at around 2000 rpm, there would be less need to change down a gear for climbing.Another way of looking at it would be to consider climbing a steep hill in 2nd gear whilst towing: a VR6 would rev to 6000+ rpm, comfortably leaving a TDI behind revving at 4000 rpm, but if you had to stop, a TDI would be easier to restart. I think my GCSE in Physics is quite safe. In reality, both the TDI and VR6 make excellent tow cars (I have tried both, by the way), but the main difference is economy - my TDI does 27 mpg with the caravan in tow, cruising at around 70 mph in 5th (6th is usable, but pointless, as it is a little too high for towing). Quote
MrT Posted September 28, 2005 Report Posted September 28, 2005 I suppose as I now drive an auto, I don't take much notice about the clutch or what gear I am in. I have noticed though with a low revving deisel and a high ratio gear such as the original land-rovers, you can just take your foot of the clutch from a stop without even slipping it or using the throttle. You cannot do that with a high revving petrol! I believe that auto galaxies (both types) can tow a higher weight than the none auto. Quote
tim-spam Posted September 28, 2005 Report Posted September 28, 2005 The manufacturer's towing limit for the TDI is 2000kg, which, as the car weighs just over 1700kg, is probably a little on the high side. For stability reasons, it is advisable to stick to around 1500kg - my caravan is around 1300kg laden and the stability is really very good. I think tha manufacturers' towing limits tend to be set by the ability to restart on a 1 in 6 hill, but I guess it's all a bit academic, because on real roads, traction is probably the limiting factor. Oh no!!!! I've probably just started a 2WD vs 4WD argument. Quote
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