 | Home > Puma (Tdci) > If you're thinking about a BAS remap... do it! |
 
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232   
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If the revs are low and the throttle is hard down this can be expected a little as the engine is trying to pull hard max torque while the car is under a lot of load from the low revs you have on on a high gear. Its due to the driver demand torque which is instructed from your pedal position.
Pete |
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26th Apr 2012 7:07pm |
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| Mynstral Member Since: 14 Feb 2012 Location: Essex Posts: 119 
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Hi Pete.
Only seems to happen in 6th doing 50mph+. Regards. Smoke me a kipper I'll be back for breakfast. |
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26th Apr 2012 7:35pm |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232
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But at what rpm and throttle position ?
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26th Apr 2012 7:43pm |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232
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Hi
Its hard to give you an answer as I still dont know at what rpm and throttle postion you have a judder. It does seem from your last post that you may have been putting it into 6th a little to early in the rpm range and really loading the transmition up and this would could a drivetrain judder simply from the stresses you are putting on the car. Adding an intercooler and hybrid turbo will give more power than you have now for sure, but wont cure drivetrain loading issues as this is gearing. Pete |
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29th Apr 2012 9:06pm |
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| Mynstral Member Since: 14 Feb 2012 Location: Essex Posts: 119
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Hi Pete,
Going away with it over the next weekend, I'll report back after. Regards Myn. Smoke me a kipper I'll be back for breakfast. |
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29th Apr 2012 9:32pm |
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| jayaway44 Member Since: 04 Nov 2011 Location: Edinburgh Posts: 111 
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Hi
The 2.2 is done we are at the moment working on a way to feasible and commercially pratical to install it onto public cars. I should be able to provide more info in the not to distant future. PS, thank you all in the thread for your great comments on our tuning and customer support. Pete Pete how are you getting on with the 2.2, are you ready to market it yet? Thanks 2.2 2012 110 utility Orkney Grey Also Range Rover Evoque - Surprising but I like it. Previous Freelander 2 SD4 HSE - Black 90 TD5 Discovery 3 Early Discovery. |
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25th May 2012 11:34am |
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| Sticky Member Since: 07 Dec 2008 Location: Derbyshire Posts: 245  
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A few people have mentioned the issue in sixth gear, I had it at around 2,500 rpm until 2,800.
However my issue was definitely related to a decat exhaust, Pete supplied a different map and now it is brilliant. I see that Pete now advises caution with decat exhausts and back pressure, however the combination I am running now, pulls like a train. Great customer service and you get the impression, if you have a specific problem on your car, that Pete really wants to find a solution. |
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27th May 2012 7:51am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8001 
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judder from vibration of steering/chassis or the engine? or hesitation in the engine? Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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29th May 2012 6:19am |
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| pjw4233 Member Since: 30 Nov 2009 Location: Lake District & Cheshire Posts: 273 
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If the shudder is only happening in sixth gear when there is the most residence in the driveline my guess is the clutch can't handle the extra torque.
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29th May 2012 4:55pm |
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| marklockett2103 Member Since: 08 Feb 2011 Location: West Sussex Posts: 32 |
i get the shudder in 5th and 6th at low revs, worse when towing, adjusted driving style stops it. i figured it was the propshaft complaining about the extra torque.
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6th Jun 2012 2:51pm |
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