Prepare for take off!

Prepare for take off!

Author
Discussion

david500

Original Poster:

31 posts

263 months

Wednesday 9th October 2002
quotequote all
Ok so it appears that I am not the only one who starts to get a bit nervous when in the Grifter over about 140. It feels like it is going to take off!! - especially if you are on a slighty uneven road.

Has anyone done anything that has kept the car a bit more planted?

Or should I just get a pilots licensce and keep the right foot down?

Thanks

simont

2,136 posts

274 months

Wednesday 9th October 2002
quotequote all
Remember the old movie about breaking the sound barrier? As the speed approached Mach 1 the aircraft started to shake and so the pilot backed off....

Same idea....... nail it!

jeremyc

23,511 posts

285 months

Wednesday 9th October 2002
quotequote all
quote:
Ok so it appears that I am not the only one who starts to get a bit nervous when in the Grifter over about 140. It feels like it is going to take off!! - especially if you are on a slighty uneven road.



simon.b

1,230 posts

283 months

Wednesday 9th October 2002
quotequote all
It has been stated here on PH (I think) that the spoiler/splitter improves high speed stability, which I suppose in theory it could do as it must reduce or at the least slow down the air flow under the car.

I normally have one fitted (but not a the moment) and it does feel a bit better, though I have never been up at really high speed to compare the effect.

Cheers,

Simon.

simont

2,136 posts

274 months

Wednesday 9th October 2002
quotequote all
Jeremyc

LOL!!!People are wondering why I am laughing at my PC!

d1bble

3,268 posts

264 months

Wednesday 9th October 2002
quotequote all
Ha...that reminds me...the guy I bought my Griff from..
..a wonderful chap called Adrian...told me he had a thing for chopper bikes..(you know..the ones with gear sticks/castrators)...he had put an advert in the local paper...and he just couldn’t refuse people bringing these choppers to his door...he ended up buying twelve...all stored in his loft....absolute nutter..


.....as far as 140 goes.....I had it at 165 the other night....quite scary....esp. as the road bends a little..

.....I would say weight plays an important factor!

simpo one

85,526 posts

266 months

Wednesday 9th October 2002
quotequote all
'Remember the old movie about breaking the sound barrier? As the speed approached Mach 1 the aircraft started to shake and so the pilot backed off....'

Yes, and the theory was that at such high speeds, the controls became reversed... ergo, if you fancy turning left when you want to go right... you're braver than me!

There's a French Griff that does much racing/trackdays etc and has neat (IMO) little winglets built into the front corners (if you can say that a Griff has corners, but you know what I mean). It was in Sprint about a year ago.

simont

2,136 posts

274 months

Wednesday 9th October 2002
quotequote all
So that'll be opposite lock steering then ......at 160mph

GreenV8S

30,209 posts

285 months

Wednesday 9th October 2002
quotequote all
quote:
Ok so it appears that I am not the only one who starts to get a bit nervous when in the Grifter over about 140. It feels like it is going to take off!! - especially if you are on a slighty uneven road.

Has anyone done anything that has kept the car a bit more planted?

Or should I just get a pilots licensce and keep the right foot down?

Thanks


My experience with the V8S is that suspension settings and tyre pressure makes a *huge* difference, there should be no need to resort to drastic aerodynamic mods. My V8S used to get quite scary over about 130, now it's rock solid up to 160+ even with cornering, braking etc. But in terms of aerodynamics, one thing that is worth checking is that the front isn't too high relative to the back, even an inch difference is quite noticeable at high speed.

Cheers,
Peter Humphries (and a green V8S)

gerjo

1,627 posts

283 months

Wednesday 9th October 2002
quotequote all
quote:
Ok so it appears that I am not the only one who starts to get a bit nervous when in the Grifter over about 140. It feels like it is going to take off!! - especially if you are on a slighty uneven road.

Has anyone done anything that has kept the car a bit more planted?

Or should I just get a pilots licensce and keep the right foot down?
Thanks


140 mph on an oneven road ??

get new dampers (Nitrons or, in Holland, special Konis') and have the car set up properly by a specialist.
car is (quite)stable right up to top speed


joejib

21 posts

261 months

Wednesday 9th October 2002
quotequote all
quote:
Ok so it appears that I am not the only one who starts to get a bit nervous when in the Grifter over about 140. It feels like it is going to take off!! - especially if you are on a slighty uneven road.

Has anyone done anything that has kept the car a bit more planted?

Or should I just get a pilots licensce and keep the right foot down?

Thanks


I have a pilots licence and the Griff still scares me over 140.

simpo one

85,526 posts

266 months

Wednesday 9th October 2002
quotequote all
Wasn't that the reason why the Griff (and Chimp) were fitted with 15" fronts - to keep the nose lower and help stop it lifting?

Hut49

3,544 posts

263 months

Wednesday 9th October 2002
quotequote all
I thought it was to stop the front wheels chaffing on the bodywork when you go round corners?

Leadfoot

1,901 posts

282 months

Wednesday 9th October 2002
quotequote all
Agree with Pete Humphries on this one.
As long as the suspension components are in good nick & properly set up & you have good tyres at the right pressures, the car should be stable.
Mine is, even completely flat out (test track m'lud ).
Before a suspension refurb it used to wander all over the place >140.

edited to say: Car doesn't have a splitter

>> Edited by Leadfoot on Wednesday 9th October 23:31

IPAddis

2,471 posts

285 months

Thursday 10th October 2002
quotequote all
Mine does go a bit light at about 140mph but throw caution to the wind and at 150+, it feels solid again. Not enough balls or err... track to reach max speed.

Ian A.

Gasblaster

27,427 posts

280 months

Thursday 10th October 2002
quotequote all
Mine feels more planted roof off than roof on over 130 or so. Guess the less streamlined shape increases drag and reduces lift.

david beer

3,982 posts

268 months

Thursday 10th October 2002
quotequote all
With the roof on, in my case, its so much quicker. I would say from 60 onwards. My highest top is most certainly roof on and yes you have to hang on, but then again drive a little quick on a "B" road and you have to hang on, i love it. Just got back from 1.5k miles driving a 36ft Winnie in the "states" that has to be the most demanding drive ever and it would do 85mph, then again it had a V10 Vortex.Much the same as a sailing yacht and again i loved the chalenge.