Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club General Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 18th November 2018, 21:50   #1
CivilSteve
Avid contributor
 
MG ZT

Join Date: Oct 2017
Location: Manchester
Posts: 237
Thanks: 20
Thanked 108 Times in 56 Posts
Default The CDTi that could have been...

If BMW had let MGRover fit a VNT turbo



Bottom end limited for the clutch & smoke, top end limited by the small injectors

Going to have to say, Xpower grey does look stunning in the right light

CivilSteve is offline   Reply With Quote
Old 18th November 2018, 22:02   #2
Comfortably Numb
Posted a thing or two
 
Rover 75 Saloon

Join Date: Dec 2017
Location: Penrith
Posts: 1,336
Thanks: 165
Thanked 303 Times in 241 Posts
Default

With standard gearing, i reckon it would start running out of puff at around 135 - 140mph.
Comfortably Numb is offline   Reply With Quote
Old 19th November 2018, 07:46   #3
rrobson
I really should get out more.......
 
75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25

Join Date: Feb 2010
Location: Pontefract
Posts: 2,642
Thanks: 17
Thanked 295 Times in 218 Posts
Default

Don't they start snapping cranks at that power??
__________________
How to view a car - everything you need to help you inspect a used car

VIS motor tester avalible to local members

Injector removal tool and auto gearbox pressure tester now available
rrobson is offline   Reply With Quote
Old 19th November 2018, 13:00   #4
CivilSteve
Avid contributor
 
MG ZT

Join Date: Oct 2017
Location: Manchester
Posts: 237
Thanks: 20
Thanked 108 Times in 56 Posts
Default

Quote:
Originally Posted by Comfortably Numb View Post
With standard gearing, i reckon it would start running out of puff at around 135 - 140mph.
No need to go over 70 though is there

Quote:
Originally Posted by rrobson View Post
Don't they start snapping cranks at that power??
Wouldn't have thought so, it's the torque that would be an issue or torsional vibration. The peak torque on this is limited by the clutch and provided the DMF and crank pulley are in working order the torsional vibration wouldn't be a problem. We have these cars running 300lbft for some time now without fault.

This performed multiple loaded runs on the dyno from low end to top end. If it was going to fail it would have been then.
CivilSteve is offline   Reply With Quote
Old 22nd November 2018, 01:38   #5
saxo1980
Gets stuck in
 
saxo1980's Avatar
 
BMW 118i m sport

Join Date: Dec 2014
Location: Home
Posts: 524
Thanks: 506
Thanked 174 Times in 77 Posts
Default nope

Quote:
Originally Posted by rrobson View Post
Don't they start snapping cranks at that power??
Quote:
Originally Posted by Comfortably Numb View Post
With standard gearing, i reckon it would start running out of puff at around 135 - 140mph.


its an old wifes tale the crank will not snap fact
saxo1980 is offline   Reply With Quote
Old 22nd November 2018, 01:44   #6
saxo1980
Gets stuck in
 
saxo1980's Avatar
 
BMW 118i m sport

Join Date: Dec 2014
Location: Home
Posts: 524
Thanks: 506
Thanked 174 Times in 77 Posts
Default

Quote:
Originally Posted by Comfortably Numb View Post
With standard gearing, i reckon it would start running out of puff at around 135 - 140mph.
150 digital clock turns off for some reason
saxo1980 is offline   Reply With Quote
Old 22nd November 2018, 09:50   #7
clf
This is my second home
 
clf's Avatar
 
MG ZT CDTi

Join Date: Jan 2014
Location: carrick
Posts: 7,859
Thanks: 3,494
Thanked 2,657 Times in 1,973 Posts
Default

Quote:
Originally Posted by saxo1980 View Post
150 digital clock turns off for some reason
Plausible deniability.

'Excuse me sir, do you know what speed you were doing?'

'Are no, the Speedo switched off'

Sent from my SM-A600FN using Tapatalk
__________________


It is not gloss primer .............. it is duct tape silver!
clf is offline   Reply With Quote
Old 22nd November 2018, 14:29   #8
saxo1980
Gets stuck in
 
saxo1980's Avatar
 
BMW 118i m sport

Join Date: Dec 2014
Location: Home
Posts: 524
Thanks: 506
Thanked 174 Times in 77 Posts
Default

Quote:
Originally Posted by clf View Post
Plausible deniability.

'Excuse me sir, do you know what speed you were doing?'

'Are no, the Speedo switched off'

Sent from my SM-A600FN using Tapatalk
could ov been on rolling road maybe lol
saxo1980 is offline   Reply With Quote
Old 22nd November 2018, 15:52   #9
trikey
Premium Trader
 
trikey's Avatar
 
Rover 75

Join Date: Nov 2010
Location: Devon
Posts: 33,711
Thanks: 8,837
Thanked 14,831 Times in 8,030 Posts
Default

Quote:
Originally Posted by saxo1980 View Post
could ov been on rolling road maybe lol


Possibly... Mr XXX BHP

👍👍
__________________
Lest we forget..
trikey is online now   Reply With Quote
Old 22nd November 2018, 17:11   #10
Robson Rover Repair
NI/ROI RS
 
Robson Rover Repair's Avatar
 
ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van

Join Date: May 2009
Location: Antrim
Posts: 8,100
Thanks: 299
Thanked 1,046 Times in 568 Posts
Default

As I said in the tuning group bottom end torque is shockingly bad. Would have been far better with a 320d turbo matted to a 1749 or even a hybrid 1749 that a 2256 regardless if its vnt or not running a stable boost than waiting on something much larger to boost up. I think it's great work mind you. Freelander td4 auto injectors next perhaps?
Robson Rover Repair is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 17:38.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd