B-road blaster spring rates & bottoming out...

[FlipFlopGriff]

FlipFlopGriff said:

Got 325/400 on the 500 (Griff). Aren't Chimps set up softer?
FFG

Forgot to add - Nitrons and Eibach springs
Feels much better than the standard Nitron springs which had covered about 50k - was a daily driver for 7 years.

Dont think the factory rates are relevant anymore as everyone has made so many changes away from original.
FFG

[domV8]

I have slackened the dampers right off, after that was the advice from Anthony in my previous thread - and yes, it bobs like a duck...

However, the rear still takes off from bumps and loses contact with the ground before coming back down with a crash onto the next bump, rather than "sucking it up" and remaining in contact with the road like it used to...

Anthony, I am currently running 17/18s - but only for the last 6 months. This current ride characteristic has manifested itself since the spring change, and would lose contact with the ground with the previous Estoril/Toyo combo as well, it just wouldn't "crash" so much on landing I guess, probably bounced more...

Its the losing contact with the ground over the completely scarred roads here that seems to be the cause of all the problems...

[Ab Shocks]

OEM is 325/250 but did include a lot of spring pre-load which you don't get on GGP, I always say on the Chim/Griff that 400/325 with 12 clicks from soft on the front and 10 from soft on the rear works and generally that is the case over about 600 kits. That doesn't suit everybody and 1 click down all the way round does make a difference for some people.
The Gaz helpline is there to be used 07880 315699, regards Derek

[domV8]

Thanks Derek.

[SILICONEKID345HP]

[quote=A900ss]


Dom,

I'm running Protechs which are 325/400 and when first fitted I was bottoming out but it was because I was running the ride height too low.

I now have the Daz 'two finger front, three finger rear' ride height and it doesn't bottom out anymore. I noticed at the recent TITT, when the roads were rough, other Chims were bottoming out at speed. I wasn't.

I think it has a lot to do with the ride height and if you're two fingers all round, I'd seriously recommending trying three fingers at the back (ooh, er Mrs!) for a short while.

Good luck.


Karl.


Nothing wrong with the two and three finger trick

Edited by SILICONEKID345HP on Thursday 31st July 19:04

[ChilliWhizz]

SILICONEKID345HP said:

A900ss said:

Dom,

I'm running Protechs which are 325/400 and when first fitted I was bottoming out but it was because I was running the ride height too low.

I now have the Daz 'two finger front, three finger rear' ride height and it doesn't bottom out anymore. I noticed at the recent TITT, when the roads were rough, other Chims were bottoming out at speed. I wasn't.

I think it has a lot to do with the ride height and if you're two fingers all round, I'd seriously recommending trying three fingers at the back (ooh, er Mrs!) for a short while.

Good luck.


Karl.


Nothing wrong with the two and three finger trick

Edited by SILICONEKID345HP on Thursday 31st July 19:04

This is nonsense. Some people have thicker fingers than others FFS. In fact some people have really small fingers. I can just imagine the Porkah brigade reading this... "Those TVR boys know their stuff, guess how they set up the geo on their cars"... "I dunno, how do they set up their suspension and geo?" "well you're not going to believe this, but...."

[SILICONEKID345HP]

ChilliWhizz said:

This is nonsense. Some people have thicker fingers than others FFS. In fact some people have really small fingers. I can just imagine the Porkah brigade reading this... "Those TVR boys know their stuff, guess how they set up the geo on their cars"... "I dunno, how do they set up their suspension and geo?" "well you're not going to believe this, but...."

You know what they say about big hands and fat fingers I wonder who`s car sits a little low

Probably mac

[blitzracing]

Just a thought- not sure if you could even fit them to a TVR, but we used to use the rubber "spring assistors" you can buy for a few pounds on the Blitz off road racers. The big advantage was you could still use soft-ish springs, but they could never become fully coil bound with the rubber packing. Worked a treat at 70mph across a field as long as you where not airborne!

[ClassiChimi]

That's a mega pic, was the chassis ok after that beauty Blitz!

[wuckfitracing]

I did that too

[blitzracing]

ClassiChimi said:

That's a mega pic, was the chassis ok after that beauty Blitz!

The chassis where made out of seriously thick steel tubing, so they never bent- nothing that could not be sorted with a lump hammer, some new side panels, mudguards and engine mountings.

[ClassiChimi]

that's the nuts Blitz, sounds a bit like my mates old stockcars,,,,, but 10 times better. Same as Wuckficks that's sort of hilarious, I would say you can't get it more wrong but by the way your looking, it's seems to me like you still think you can catch it, proper funny. Who da man!

[domV8]

Just to revisit and complete this thread...

With no change to the damping (this had been softened considerably to try and offset the stiff spring-rates) I have had the 400/325 spring fitted to replace the previous 450/375 rates - perfect!

Even though the change seems quite small, the car is not bouncing off the bumps at all now, and feels firm but properly planted - very like my other halfs MR2 roadster now.

The difference is night and day as far as B-roads go, I can now attack these roads in confidence, rather than previously where the back end was very jittery and not confidence-inspiring at all.

I can firmly recommend the 400/325 spring rates for anyone looking to set their cars up for the crappy British B-road

Dom