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BigRuss · 3rd April 2015, 22:53

The ZT/ZTT 190 and 180 use exactly the same engine as Brian says the only difference is the engine tune.
The 190 tune caused harsh gear changes with the automatic gearbox so they detuned it to 180
The tune is different than the 177 Rover tune due to the cams

Russ

3rd April 2015, 22:53	#31
BigRuss Premium Trader 75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007 Location: Liversedge, West Yorkshire Posts: 5,405 Thanks: 1,105 Thanked 1,340 Times in 661 Posts	The ZT/ZTT 190 and 180 use exactly the same engine as Brian says the only difference is the engine tune. The 190 tune caused harsh gear changes with the automatic gearbox so they detuned it to 180 The tune is different than the 177 Rover tune due to the cams Russ __________________ Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details.