KV6 160 - 190 upgrade @ Lates yesterday - Page 2

slovcan · 14th February 2019, 14:43

I suspect the lower final drive ratio of the 2.0 V6/190 gearbox will give it great acceleration and urban performance, while the higher final drive ratio would give pretty nice "GT" performance (suburban/higher speed driving) without the V8-like fuel mileage (I know, an exaggeration).

Cheers,
Glenn

trikey · 14th February 2019, 19:40

I don't like the final drive ratio on a 190, it should have had an overdrive fitted!!

slovcan · 14th February 2019, 20:33

Quote:

Originally Posted by trikey

I don't like the final drive ratio on a 190, it should have had an overdrive fitted!!

That was the point I was trying to make - sort of - that the higher final drive ratio (lower numeric) of the standard 160 gearbox might make the "new 190" more user friendly on the highway - kind of like an overdrive gear might if on the 190 gearbox.

Cheers,
Glenn

minimutly · 15th February 2019, 22:59

I do a fair few mororway miles in my 190, so when the release bearing took the slave cylinder out 4 years ago I fitted a 75 2.5 gearbox.
Now does reasonable revs at 70, but Rubbish low end torque from the 190, gas conversion combined with the higher gearing does reduce its capability 50 to 70. However, overall, it was a huge success, I wouldn't change it back.
I'm due a belt service this spring - it's last at 150k, I intend to retime the cams to something sane, to see if this v6 can produce better pulling power. I promise to report back.
A 6 speeder would have been better though..

slovcan · 15th February 2019, 23:32

Quote:

Originally Posted by minimutly

I do a fair few mororway miles in my 190, so when the release bearing took the slave cylinder out 4 years ago I fitted a 75 2.5 gearbox.
Now does reasonable revs at 70, but Rubbish low end torque from the 190, gas conversion combined with the higher gearing does reduce its capability 50 to 70. However, overall, it was a huge success, I wouldn't change it back.
I'm due a belt service this spring - it's last at 150k, I intend to retime the cams to something sane, to see if this v6 can produce better pulling power. I promise to report back.
A 6 speeder would have been better though..

Sometimes a one tooth advance can increase low rev torque without bending valves. Check how many degrees one tooth equates to.

14th February 2019, 14:43	#11
slovcan Gets stuck in 75 Tourer CDT MK2 manual in Glorious Grey Join Date: Jan 2018 Location: Slovakia Posts: 987 Thanks: 926 Thanked 346 Times in 252 Posts	I suspect the lower final drive ratio of the 2.0 V6/190 gearbox will give it great acceleration and urban performance, while the higher final drive ratio would give pretty nice "GT" performance (suburban/higher speed driving) without the V8-like fuel mileage (I know, an exaggeration). Cheers, Glenn __________________ Southern Slovakia Anything can happen in Formula 1 and usually does - Murray Walker 1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720 2005 Rover 75 CDT Tourer MK2

14th February 2019, 19:40	#12
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,765 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	I don't like the final drive ratio on a 190, it should have had an overdrive fitted!! __________________ Lest we forget..

15th February 2019, 22:59	#14
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	I do a fair few mororway miles in my 190, so when the release bearing took the slave cylinder out 4 years ago I fitted a 75 2.5 gearbox. Now does reasonable revs at 70, but Rubbish low end torque from the 190, gas conversion combined with the higher gearing does reduce its capability 50 to 70. However, overall, it was a huge success, I wouldn't change it back. I'm due a belt service this spring - it's last at 150k, I intend to retime the cams to something sane, to see if this v6 can produce better pulling power. I promise to report back. A 6 speeder would have been better though.. Last edited by minimutly; 15th February 2019 at 23:02..