Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > General discussion
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #121  
Old 5th November 2012, 11:26 PM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Does anyone know whether any other speedos eg cortina or escort will fit the sierra speedo cable and give a fairly accurate reading.
I'm collecting classic guages for post iva dash and only need the speedo now.
Thanks in advance.
Reply With Quote
  #122  
Old 6th November 2012, 06:42 PM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Quote:
Originally Posted by ayjay View Post
Does anyone know whether any other speedos eg cortina or escort will fit the sierra speedo cable and give a fairly accurate reading.
I'm collecting classic guages for post iva dash and only need the speedo now.
Thanks in advance.
any ideas anyone?
Reply With Quote
  #123  
Old 6th November 2012, 07:27 PM
robo robo is offline
Senior Member
 
Join Date: Jun 2011
Location: scabs
Posts: 1,722
Default

Most speedo`s are rated at 1000rpm at 60mph so any speedo in theory will do the job. There are plenty of outfits that can make up a mongrel speedo cable.

Edit. anything you do to the driveline bigger/smaller wheels,diff ratios and gearbox changes can change the ratio per mph and that is normally frigged by changing the plastic drive gears in the box or getting one of those in line adaptors. Heres a yank page of blurb on it but the same applies here.http://www.partshp.com/speedometer_gears.htm

http://www.venhill.co.uk/Home are worth a try.

Another edit. Wheres my Cigar

Bob
__________________
When The Results Disagree With The Theory: Believe The Results And Invent A New Theory
If I had two brains I,d still be a halfwit

The cave http://s1116.photobucket.com/user/my...deshow/mancave

The build http://www.haynes.co.uk/forums/showthread.php?t=12669

Last edited by robo : 6th November 2012 at 08:30 PM.
Reply With Quote
  #124  
Old 6th November 2012, 11:02 PM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Another edit. Wheres my Cigar

Bob




Its bad for you BTW any news?

Thanks for the helpful reply(I once swapped my 1963 Mini speedo for a triumph one cos it was smarter---It was like fitting a supercharger ,I could hit 60mph in second gear)

Last edited by ayjay : 6th November 2012 at 11:08 PM.
Reply With Quote
  #125  
Old 10th November 2012, 09:41 PM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Previous test drives have made me wonder if I could stand more than 10 mins in a roadster -feeling every speck of dust on the road and everything vibrating so much the view in the mirrrors was blurred.

Today whilst working down my "suspension and steering " checklist .I arrived at
"check tyre pressures" and used a little dial type instead of the sliding tube type.Tube said 20psi dial said 35psi
I decided to believe the dial ,dropped the pressure to 15psi ( until a slight bulge appeared at the contact point) .

Downside is my bellhousing scraped the little hump before the garage door
Just added "sumpguard" to my checklist!

Q. Book says 18-20 psi.What do others with cvh run at please?
Reply With Quote
  #126  
Old 10th November 2012, 10:53 PM
robo robo is offline
Senior Member
 
Join Date: Jun 2011
Location: scabs
Posts: 1,722
Default

I have found its better to start off with the the tyres soft and the shocks backed off to the softest setting . Dial in the minimum amount of shock on the rear as you can get away with, its the shocks that jar your spine not the springs. The tyre pressure thing is not set in stone and will vary from car to car, its more to do with keeping the tyre contact patch flat on the road. Car manufacturer`s spend millions fine tuning all these factors so it wont be a five minute job to dial in some comfort/handling.

Bob
__________________
When The Results Disagree With The Theory: Believe The Results And Invent A New Theory
If I had two brains I,d still be a halfwit

The cave http://s1116.photobucket.com/user/my...deshow/mancave

The build http://www.haynes.co.uk/forums/showthread.php?t=12669
Reply With Quote
  #127  
Old 10th November 2012, 11:25 PM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Sounds like good advice. They dont need to be rock hard on the road. Ill play about with it til it feels right
Reply With Quote
  #128  
Old 11th November 2012, 10:38 AM
spud69's Avatar
spud69 spud69 is offline
Senior Member
 
Join Date: Jul 2008
Location: Hartlepool
Posts: 1,678
Default

Tyre pressures and damper settings do make a surprising difference and the car is very sensitive to them. I've found that 18psi on our cruising roads dampers about half way gives a nice compromise. Another 2psi and stiffer dampers makes for a much harsher ride. On the nice smooth track i'll set the tyres at 16psi and let them warm up and turn the dampers right up, makes the car a lot more positive but you need smooth tarmac for it.

Have fun testing...........AndyH
__________________
Haynes Roadster / Saturn GRP Bodywork. Now available direct through http://www.gillhamonline.co.uk/ or contact me direct on andrew.hugill@ntlworld.com

Regards..........AndyH
Reply With Quote
  #129  
Old 12th November 2012, 01:57 PM
TheArf TheArf is offline
Senior Member
 
Join Date: Jan 2010
Location: Wrexham North Wales
Posts: 1,041
Default

Well one thing they aint got in coedpoeth is smooth tarmac, just remind me Ayjay, how deep are the ruts in the roads upthere after all those two wheeled carts going up and down.
Reply With Quote
  #130  
Old 12th November 2012, 11:29 PM
ayjay ayjay is offline
Senior Member
 
Join Date: Dec 2010
Location: Coedpoeth near Wrexham, North Wales
Posts: 737
Default

Quote:
Originally Posted by TheArf View Post
Well one thing they aint got in coedpoeth is smooth tarmac, just remind me Ayjay, how deep are the ruts in the roads upthere after all those two wheeled carts going up and down.
The grass growing between the ruts keeps the bottom of my car nice and clean.
Its the charabancs and velocipedes that churn things up
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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 01:18 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.