Noble purchase - help
Noble purchase - help
Author
Discussion

idontknow

Original Poster:

188 posts

163 months

Wednesday 13th February 2013
quotequote all
Hoping i can pick the collective brain.

What are the 'must checks' on a noble purchase GTO-3?

Looking at a few cars but scared i might be missing something 'obvious' which may then bit me at a later date.

Any help greatly appreciated.
Thanks

Gadgeroonie

5,362 posts

265 months

Wednesday 13th February 2013
quotequote all
you need

6 speed box plus lsd
or strengthened 5 spd box plus lsd
track day sump
rewired fuel pump
pipe from tank to pump needs replacing
floor refitted with stainless steel rivets

idontknow

Original Poster:

188 posts

163 months

Wednesday 13th February 2013
quotequote all
Gadgeroonie said:
you need

6 speed box plus lsd
or strengthened 5 spd box plus lsd
track day sump
rewired fuel pump
pipe from tank to pump needs replacing
floor refitted with stainless steel rivets
why the 6 over the 5?

wessexrfc

4,326 posts

215 months

Wednesday 13th February 2013
quotequote all
idontknow said:
why the 6 over the 5?
Slightly stronger

idontknow

Original Poster:

188 posts

163 months

Wednesday 13th February 2013
quotequote all
wessexrfc said:
Slightly stronger
ok, weak in general, or weak when used on track?

wessexrfc

4,326 posts

215 months

Wednesday 13th February 2013
quotequote all
idontknow said:
ok, weak in general, or weak when used on track?
A slightly contentious subject, but some had trouble with 5th gear going. If that was general or hard driving, I could'nt say.

andygtt

8,345 posts

293 months

Wednesday 13th February 2013
quotequote all
5 gear is famous for going is the 6 speed not 5 speed as far as I am aware.... the weakness in the 5 speed box is the open diff....There are cars running 500bhp on modified 5 speed box's.

all 6 speeds were fitted with an lsd.

So the must have check is that it has an LSD.
Id go for a car with a track day sump, expensive to do and an absolute must if going on track even gently.
Also check for rust around the rear of the chassis
Check for wet floors in the cabin.
Mostly I would check for condition generally, well maintained and cared for cars stand out.
If its modified you need to check carefully whats been done... its relatively easy to up the power significantly, but if you want reliability a whole host of other things need to be done if power has risen significantly. However some choice mods like fuel pump wiring are considered a must even for stock cars.


idontknow

Original Poster:

188 posts

163 months

Wednesday 13th February 2013
quotequote all
What are the costs of upgrading to a 6?

andygtt

8,345 posts

293 months

Wednesday 13th February 2013
quotequote all
having done it myself I can say 3-4k if you do work yourself... more if you pay a garage.

MUCH cheaper to but to the spec you want straight off.... 6 speed is a much nicer box to use.

idontknow

Original Poster:

188 posts

163 months

Wednesday 13th February 2013
quotequote all
andygtt said:
having done it myself I can say 3-4k if you do work yourself... more if you pay a garage.

MUCH cheaper to but to the spec you want straight off.... 6 speed is a much nicer box to use.
I'm not that spanner handy! That include the LSD?

andygtt

8,345 posts

293 months

Wednesday 13th February 2013
quotequote all
A rebuild and fitting of LSD in a 5 speeder will be 1-2k including fitting (if no LSD is present)... You don't NEED to uprgrade to a 6 speeder as a 5 speed is more than up to the job with an LSD unless you go silly on power.

I did over 30k in my noble in a 5 speeder without an LSD before rebuilding it and it never failed.

Gadgeroonie

5,362 posts

265 months

Wednesday 13th February 2013
quotequote all

idontknow

Original Poster:

188 posts

163 months

Wednesday 13th February 2013
quotequote all
Gadgeroonie said:
That sold ages ago

Lakelord

1,756 posts

233 months

Wednesday 13th February 2013
quotequote all
It really depends on what you want the car for.
If it's just a 'weekend car,' the only thing to really look out for is the LSD as this is definitely a weak point in the car.
If it's running standard power, the gearbox won't let you down but if you upgrade the power, the 5 spd boxes break as do the 6 spd boxes (which were fitted as standard on some GT03s)
The problem is, once you buy one of these cars, whether it's a M12 or M400, you feel compelled to tinker with them so if you are in the market for one, make sure you know what you want and base your purchase on that as you will never recoup the money you'll spend upgrading a factory car if you want to track it or are looking for more power etc. Best buy a car that has all the upgrades done to it already.

D_G

1,934 posts

238 months

Wednesday 13th February 2013
quotequote all

As an owner of an early 3, I would check (on top of crash damage / normal checks etc):
Fan cowling upgrade (usually dealer completed)
Fuel pump wiring upgrade (easy)
TDS (essential for track use)
LSD (option on five speed from new)
Chassis corrosion / condition of heat protection
Wet interior (probably floor seal)

My five speed is very easy to use and not notchy / stiff which is the usual complaint, I keep the linkages lubricated which definately helps. My car is on 33k still with the open diff with no problems although it has an easy life, so if you find the perfect car you can have this done at a later date.
All of the above and the general condition will point to it being a cared for car, these aren't your normal machine though and a few owners on here have spent a lot of money putting theirs right so make sure you have a few grand put by for a rainy day.

steveobes

632 posts

208 months

Thursday 14th February 2013
quotequote all
My 5 speed is running 444 bhp n 465 torque, no probs so far

mgbond

6,749 posts

261 months

Thursday 14th February 2013
quotequote all
steveobes said:
My 5 speed is running 444 bhp n 465 torque, no probs so far
But that's not on a std clutch though, which is a engine out job to change. So if you upgrade clutch then it's a good idea to upgrade gear box.

Steve, isn't your box upgraded?

Bondy

steveobes

632 posts

208 months

Thursday 14th February 2013
quotequote all
mgbond said:
But that's not on a std clutch though, which is a engine out job to change. So if you upgrade clutch then it's a good idea to upgrade gear box.

Steve, isn't your box upgraded?

Bondy
Sorry should have said Martin.
Box have a lsd n paddle upgraded clutch.
Iv taken box out through side twice on my own, pig of a job but doable

idontknow

Original Poster:

188 posts

163 months

Thursday 14th February 2013
quotequote all
D_G said:
As an owner of an early 3, I would check (on top of crash damage / normal checks etc):
Fan cowling upgrade (usually dealer completed)
Fuel pump wiring upgrade (easy)
TDS (essential for track use)
LSD (option on five speed from new)
Chassis corrosion / condition of heat protection
Wet interior (probably floor seal)

My five speed is very easy to use and not notchy / stiff which is the usual complaint, I keep the linkages lubricated which definately helps. My car is on 33k still with the open diff with no problems although it has an easy life, so if you find the perfect car you can have this done at a later date.
All of the above and the general condition will point to it being a cared for car, these aren't your normal machine though and a few owners on here have spent a lot of money putting theirs right so make sure you have a few grand put by for a rainy day.
Where in particular would I need to check for chassis corrosion? Any weak points in particular or just general?

steveobes

632 posts

208 months

Thursday 14th February 2013
quotequote all
Just have a look when you lift rear n front clam up.
Rear sometimes around below intercooler and front around where front clam pivots. Also check around
front suspension, useally onlt surface rust n that can be sorted with a bit of rubbing down
n painting or spraying.