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7th December 2020, 20:06 | #41 | |
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I’d like to see that 170bhp diesel on a properly calibrated dyno. A dyno can be tweaked to give higher numbers if needed, it’s results are only as good as it’s calibration. Anyone fancy a free dyno run? The offer is there for anyone with a 160 mapped car as long as the results can be posted, and you get a free printout of your power |
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7th December 2020, 20:26 | #42 |
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IIRC Hodgy's car the one reported at 170, had an absolutely horrible map on it not one of ours it smoked very badly too.
I drove it and it was more than a little rough. It did have one or two tweaks to the turbo operation but can't remember exactly what, I've slept a bit since then I think he was also running a Synergy as well as the map. I wasn't there but he might just have got 170, after all Jakg did with a similar setup as did Johndotcom with their cars Russ
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7th December 2020, 20:46 | #43 | |
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Jamiewelch “ I can get around 430nm of torque out of a diesel.” Not out of a standard CDTI clutch you won’t, just not going to happen, I’m not going to argue because when you know you know. Mick
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7th December 2020, 21:08 | #44 |
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Thanks for that was going to say something similar, there's no way on the planet can you get 430nm out of a standard clutch.
The clampling forces on the clutch are far far less than that If you're going to come out with numbers at least come out with something credible. Russ
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8th December 2020, 07:28 | #45 | |
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I'm not sure what clutches you guys have been fitting, but a decent clutch will definitely handle it. Below is a printout from a proper dyno, not an "OBD dyno" that Rob Drinkwater used. We can put a 160 mapped car on the same dyno if anyone wants a run? I've blanked the car owners details from the photo. Torque is in lbft and Power is in HP. You can see how the power line is very smooth and it is very straight, this is what happens with a stock turbo at 24psi, it just can't get enough air in there for the power to go any higher. |
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8th December 2020, 09:26 | #46 |
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Jamie you really don't have a clue, do you?
It's not a case of what clutch is fitted, you cannot exceed the physical properties of the clutch. A particular clutch can only take a certain amount of power based on the diameter, surface area, and friction material of the clutch along with clamping load from the pressure plate. You can look these up if you want all the information is available. Beyond the specified limits the additional power at first causes micro slippage but this quickly accelerates to destruction of the clutch. That torque figure is also beyond the capabilities of both the Getrag and Jatco gearboxes. Rob Drinkwater found that out when he destroyed the transmission shaft on his car. By the way before you criticize Rob you should really should look up who he is and what his achievements are Russ
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8th December 2020, 09:35 | #47 | |
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You should ask people who have gone from the 160 to a much more torquey map. As you can see from the graph, that is peak torque and doesn't run at 300lbft+ all the time. I have posted a dyno run proof of the results, much more than anyone has done for the 160 map. My numbers are more credible than an excel sheet and a video of people sat on a car to keep it on the dyno... I've spoken to Rob on Facebook, he is adamant that an OBD reading will give accurate numbers, even when a gear change is done in the middle of it... Why is it that people here have never trusted something new? Ever since I have tried to offer something on here people always moan and say to go to one of the T4 guys. When you guys eventually leave there will be no one left if anyone new gets pushed out. |
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8th December 2020, 09:38 | #48 | |
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Thanks for the accurate figures Brian, my guesses on them were pretty good Russ
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8th December 2020, 09:56 | #49 | |
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Not much of a torque increase, you'd barely feel it. 390nm on the other hand, that would be much more like the numbers I would have liked to have seen. On the smokey car with 390nm I assume the manifold, egr and intercooler were spotless? That is normally what causes the excess smoke providing there are no boost leaks, there shouldn't really be much smoke if its all in good order. I'd like to see a car run 180bhp with a stock turbo and stock fuel system. When restrictions are reduced Brian, how would you feel if we tried one of my maps on your car and you can see for yourself? As I know any car of yours will be looked after and in good mechanical condition. You may be impressed, it might not be the map for everyone, but you're welcome to give it a try. |
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8th December 2020, 15:10 | #50 | |
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We have plenty of maps that are higher output than the ones we provide for the "160" remap the reason we didn't go higher is to keep the torque settings at a level that would minimise the effects on the clutch and transmission. In what way is pointing out the fact that at the torque figures you're talking about they could definitely cause premature clutch failure could be described as talking down the opposition. Running 300ft/lbs+ even for short periods will induce minute slippage that will have a detrimental effect that will exacerbate wear. If people are happy to prematurely change clutches or transmissions by running maps at that level then fair enough but I know most people would rather not have to do that. Jamie you're not doing or offering anything new, it's all been done before. In fact all the stuff you're advertising in your signature is because of other people's hard work, who spent an awful lot of time and money to discover how to do these things. You then have the cheek to put down those people's services and promote your own. Russ
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