HSV DYNO DAY IV ..... The FI strikes back........
Discussion
It was the texas guy, texas jack or something like that who had a gto which launched really well and I mean well. He put his launch times down to a damper rod fitted sideways between the engine and the suspension strut, which he called a stiffie. 
It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
Boosted LS1 said:
It was the texas guy, texas jack or something like that who had a gto which launched really well and I mean well. He put his launch times down to a damper rod fitted sideways between the engine and the suspension strut, which he called a stiffie.
It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
The stiffy is all about stopping backlash which breaks traction and transmission. (The downside is it moves the drivetrain play further back toward the wheels and breaks bits there instead) Money spent on tubbing means wider tyres hence more grip, and less chance for backlash
Stiffy is without doubt a good mod but can create its own set of technical challenges.
Boosted LS1 said:
It was the texas guy, texas jack or something like that who had a gto which launched really well and I mean well. He put his launch times down to a damper rod fitted sideways between the engine and the suspension strut, which he called a stiffie.
It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
Cheers for that It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
I now understand And yes i think i do need a stiffie
crisisjez said:
madmunky said:
gsd2000 said:
My bets on wormus, tvs2300 at 18psi
I would have to bet on Jezz's beast if Harrys not going.
Edited by madmunky on Wednesday 18th November 13:44
I won`t get close to 770
I have faith in the Beast. Cant wait. I'll do videos guys
on sat anyway 
Boosted LS1 said:
It was the texas guy, texas jack or something like that who had a gto which launched really well and I mean well. He put his launch times down to a damper rod fitted sideways between the engine and the suspension strut, which he called a stiffie.
It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
It was Sarge GTO Mate. I don't rate the stiffy really and I think he was on here to promote them, nice bloke that he is. If you are having problems with engine movement and are serious about launches, you will fit poly engine and gearbox mounts, which will help with axle tramp as well. In any case most of those cars over there will be auto's, which are wound up on the stall at the line anyway.It stopped energy being wasted rotating the engine by a few degrees. The stiffie resisted the engine's movement so all the energy went to the propshaft and driveline instead.
Some people pay a fortune on tubbing etc but you need the energy to get to the tyres in the first place. So, maybe you need a stiffie
Here's mine:
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