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Mems3 rover 45 1.6 Moderators: Jump to page : 1 Now viewing page 1 [25 messages per page]
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DotMatrix

Posted 6/12/2016 9:51 AM (#723019)
Subject: Mems3 rover 45 1.6

Expert

Posts: 4458
2000

Location: Jelling, Denmark

My father bought such a car and compared to the 1.6 mems1.9 rover 400 i had the 45 feels very sluggish and not nearly as responsive. Is this to be expected from mems3?

petrol_head

Posted 6/12/2016 10:33 PM (#723021 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

drive it like its hired

5000

Should be exactly the same.
Check it doesnt have a restricted throttle butterfly.
Check lambda
Check timing belt is timed properly

DotMatrix

Posted 8/12/2016 2:41 PM (#723028 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 4458
2000

Location: Jelling, Denmark

Thank you for the reply. I will check these things

In what way is it restricted?

forcker

Posted 8/12/2016 4:29 PM (#723029 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Regular

Posts: 241
100

Location: Germany

There are throttle bodies, in which the butterfly does not open completly.

This was to reduce power for insurance reasons.

Easily checked and fixed.

DotMatrix

Posted 8/12/2016 4:38 PM (#723030 - in reply to #723029)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 4458
2000

Location: Jelling, Denmark

forcker - 8/12/2016 5:29 PM

There are throttle bodies, in which the butterfly does not open completly.

This was to reduce power for insurance reasons.

Easily checked and fixed.

Right. Thanks

Gandi69

Posted 9/12/2016 11:16 AM (#723040 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 11052
5000

Location: Wolverhampton

I didnt think they fitted restricted throttle bodies to anything but the 1.4 84ps models?

DotMatrix

Posted 11/12/2016 9:50 PM (#723055 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 4458
2000

Location: Jelling, Denmark

I looked beneath the accelerator pedal and found a small block welded on which kept the throttle from being fully opened.

forcker

Posted 11/12/2016 10:11 PM (#723057 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Regular

Posts: 241
100

Location: Germany

Strange way to modify a car.

Does it now run as good as the 416?

DotMatrix

Posted 12/12/2016 9:15 AM (#723058 - in reply to #723057)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 4458
2000

Location: Jelling, Denmark

forcker - 11/12/2016 11:11 PM

Strange way to modify a car.

Does it now run as good as the 416?

the easiest way to restrict the power I would think, the VW transporter had a similar arrangement.

I haven't removed it yet. I will report back when it is done

petrol_head

Posted 13/12/2016 12:42 PM (#723070 - in reply to #723058)
Subject: RE: Mems3 rover 45 1.6

drive it like its hired

5000

DotMatrix - 12/12/2016 3:15 PM

forcker - 11/12/2016 11:11 PM

Strange way to modify a car.

Does it now run as good as the 416?

the easiest way to restrict the power I would think, the VW transporter had a similar arrangement.

I haven't removed it yet. I will report back when it is done

You need to take the pipe off and throttle body, press the throttle and look.
Obviously the flap should open 90 degrees, if it doesnt, its restricted.

111Sli

Posted 20/12/2016 11:40 PM (#723121 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Transport Guru
MP Moderator

Posts: 4947
2000

Location: Bromley, Kent

Mems 3 can be remapped by Kmaps to offer a bit more grunt and also improved mpg on normal drivinh

DotMatrix

Posted 21/12/2016 9:46 AM (#723122 - in reply to #723121)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 4458
2000

Location: Jelling, Denmark

111Sli - 21/12/2016 12:40 AM

Mems 3 can be remapped by Kmaps to offer a bit more grunt and also improved mpg on normal drivinh

but isn't this remapping quite impossible to do correctly remote. I mean the remapper wont have any reference to what he is doing.

111Sli

Posted 21/12/2016 3:55 PM (#723124 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Transport Guru
MP Moderator

Posts: 4947
2000

Location: Bromley, Kent

He can sent you a flat 1.6 remapped ECU you could swap. Best bet would be to contact Kmaps and see what options they offer.

R100_vvc

Posted 21/12/2016 5:35 PM (#723125 - in reply to #723122)
Subject: RE: Mems3 rover 45 1.6

Expert

Posts: 2029
2000

Location: sittingbourne, kent

DotMatrix - 21/12/2016 9:46 AM

111Sli - 21/12/2016 12:40 AM

Mems 3 can be remapped by Kmaps to offer a bit more grunt and also improved mpg on normal drivinh

but isn't this remapping quite impossible to do correctly remote. I mean the remapper wont have any reference to what he is doing.

Alot of the mapping is to tweak sections on the map where they retard ignition/fueling to meet emissions at the time of sale (not MOT).
The new map will be how they wanted to run the engine originally, before tweaking it to meet tight emissions and less responsive for a smoother pull off. Bit like VW diesels did but without the cheating

KLAS

Posted 2/1/2017 10:37 AM (#723162 - in reply to #723019)
Subject: RE: Mems3 rover 45 1.6

Regular

Posts: 112
100

Location: Hamburg, Germany

the car should run nearly the same as the older one.
so if it is sluggish i would look at other problems, like broken CTS, or similar. happily MEMS3 is OBD2 compatible so any reader should at least give an overview and read DTC.

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