GEARBOX change on MEGANE II 1.6 16V (longer 5th gear or 6th gear)

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ErikC
Posts: 1
Joined: Sat Aug 20, 2016 4:34 pm
Currently Drives:: MEGANE II 1.6 16V 2007

GEARBOX change on MEGANE II 1.6 16V (longer 5th gear or 6th gear)

Postby ErikC » Sat Aug 20, 2016 4:49 pm

Hello

I have a wonderful Megane II 2007 1.6 16V (85kW). It drives fine, but when I go on the highway my rpm is simply to high to drive. I have 100km/h at 3000rpm in 5th gear and 116km/h at 3500 rpm. It seems that I have the same gearbox as used on 1.4 16V Modus, which is, in my opinion to short. The engine have enough power to go 10-20km/h more in 5th gear (max torque 150Nm at 4200). I would like to know which gearboxes would fit my Megane (1.8 16V engine, or gearboxes with 6th gear). I was checking gear ratios and it seems that ideal would be TL4 (2WD) diesel or JB3-952/938, but I am not sure if they would fit mechanically. Does anybody have the gearboxes gearratio specifications and knows which models would fit my Megane?

carlosmourita
Posts: 1
Joined: Tue Sep 05, 2017 5:06 pm
Currently Drives:: Renault Megane II Sport Tourer 1.6 16v 113bhp (Estate)

Re: GEARBOX change on MEGANE II 1.6 16V (longer 5th gear or 6th gear)

Postby carlosmourita » Tue Sep 05, 2017 5:38 pm

Hello,

I have the same problem, and was looking for the same thing.

I know this was posted here a long time ago, but if in the meantime anyone found out what gearbox could be fitted on my megane would be great if you could share!

I drive a Megane II 1.6 16v 113bhp Sports Tourer!

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Oliver
Just Passed
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Joined: Mon Nov 13, 2006 10:27 pm
Location: Germany (Bavaria)
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Re: GEARBOX change on MEGANE II 1.6 16V (longer 5th gear or 6th gear)

Postby Oliver » Fri Sep 15, 2017 12:36 pm

You can normally install all 5th gear-wheel pairs with a longer ratio from all JH3/JR5/JB3/JC5 gear boxes.

Normally you should have a JH3-142 gear box with the ratio of 37/33 for the 5th. (see page 21 here: https://philch.free.fr/clio/clio3/MR392CLIO2.pdf )

If you would install for example the 39/32 pair the 5th would be 9% longer (9% lower rpm at same speed) and the 39/31 pair would be about 12% longer.

The 6-speed manual gear box from the ScenicII Ph.2 1.6 16v/ Megane III 1.6 16v seems not to fit as the engine-block has a different part number, as fly wheel, clutch, and drive shafts do, too.
best regards
Oliver


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