griff ride height?
griff ride height?
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Discussion

mongoose

Original Poster:

4,360 posts

284 months

Monday 18th July 2005
quotequote all
About to have another play with the pro-techs again.Could anyone help by telling me what the standard ride height is for the griff please.Im looking for the front and rear hight,and at which point its measured.Many thanks,Mike

shpub

8,507 posts

301 months

Monday 18th July 2005
quotequote all
Please define what is the standard Griff...

It varies at around 120-170mm depending on where it is measured , who is in the car and how much fuel is in the tank, what springs you have and so on.

GarryM

1,113 posts

312 months

Monday 18th July 2005
quotequote all
Short answer - don't know.
Long answer - have read others refer to c. 150mm measured to outrigger behind front wheel and in front of rear wheel. Mine measures just under 130 mm at front and just over at rear. Can't say mine looks low compared to others and it handles pretty well. HTH.

mongoose

Original Poster:

4,360 posts

284 months

Thursday 21st July 2005
quotequote all
Cheers chaps,one other thing,if i may.Are the front and back heights supposed to be the same?

trackcar

6,453 posts

255 months

Thursday 21st July 2005
quotequote all
Hi Mike.

general rule of thumb here but you really need to keep the rear roll centre higher than the front at all times, not too difficult on a TVR as the front wishbones end up inclined downwards to the chassis anyways and the rear wishbones are more or less parallel and generally slope up to the chassis at sensible ride heights.

aim to have the rear higher than the front with the car static .. obviously as you load the car up (people, fuel, luggage etc) the rear will drop but if you can keep the rear above the front then you'll have a downwards raking roll axis to the front which will help maintian a consistent handling balance (most other things being equal) through corners, especially if you like playing with the throttle and upsetting the fore-aft stance of the car.

My aim is to set the front so that it doesn't bottom out onto the spring assisters in anything but the most severe bumps/braking (use cable ties on the piston rod to determine the stroke being used on your test route), and then set the rear to be about 20mm higher than at static with you in the car / half tank fuel on 250 rear springs, 15mm on 300 springs and 10mm on 325 springs.

i gather you're just wanting to play a bit until you come in for playtime at the workshop?

mongoose

Original Poster:

4,360 posts

284 months

Thursday 21st July 2005
quotequote all
Cheers Jools,i'll go for 15mm higher at the rear then.There are so many variables,my brain hurts!But its the best fun i've had with any car,thats for sure.Modifying is such a fabulous pastime.Your right btw,i can hardly wait for my workshop visit