Monkfish Diff cover....
Discussion
gsd2000 said:
I was told that unless i was running big power, tracking the car or drifting then it wasnt really needed. If your car is tramping maybe look into upgrading the rear bushes first.
Its the Drifting bit!! when (On private roads) it gets sideways it sometimes tramps. Im assuming the diff cover resolves this?
For the drifting part i thought it only helped as the harrop cover holds more oil so the diff oil stays cooler prolonging the life of the diff. I think it is suppose to help a bit but by how much i dont know. I know reading reviews on the american forums some say that it cured their tramping others say it didnt do anything. But they all agree that it looks good.
Harrop cover alone will not help alot, it does contribute towards stopping tramping but it wont really be very noticable unless other things are upgraded as well. Primary reason I fitted it was for the extra oil volume it holds to help keep the diff alive for prolonged hign speed playing in Germany.
A total axle tramp solution would look a bit like this:
G force level 1 anti hop driveshafts,
Rear end Pack with either a Harrop diff cover or an upgraded diff mount (part of rear enf pack)
Decent rear dampers
This will significantly improve it. You can fit addtional shims to the rear subframe bushes, but it does start to increase the noise and harshness.
G force level 1 anti hop driveshafts,
Rear end Pack with either a Harrop diff cover or an upgraded diff mount (part of rear enf pack)
Decent rear dampers
This will significantly improve it. You can fit addtional shims to the rear subframe bushes, but it does start to increase the noise and harshness.
behold81 said:
Anyone fitted one before??? does it make much of a difference? Tramping is quite bad on the GTS when the rear decides to brake loose. (All by its self with no hel from me... Honest...)
Ta
On it's own not a chance. Whatever you do (and I have done about the lot without gutting the back end for a 4 link) the problem is inherant in the IRS setup which is a geometrical nightmare.Ta
You also need to consider (if you want to be hyper critical), prop' mounts, doughnuts, gear box mount, engine flex. They all compound the problem of oscillation when the wheels start bouncing. Of course everything you alter to reduce the problem also causes less compliance in those areas, "a cock up to cure a cock up" if you like.
You don't need the Harrop housing unless you want it's other advantage (oil capacity) and the bling effect, there is a nice relatively cheaper urethane bush to replace the wobbly rubber piece.
The Fish normally have all of the common parts needed to start the process.
MyM8V8 said:
behold81 said:
Anyone fitted one before??? does it make much of a difference? Tramping is quite bad on the GTS when the rear decides to brake loose. (All by its self with no hel from me... Honest...)
Ta
Ta
On it's own not a chance. Whatever you do (and I have done about the lot without gutting the back end for a 4 link) the problem is inherant in the IRS setup which is a geometrical nightmare.
You also need to consider (if you want to be hyper critical), prop' mounts, doughnuts, gear box mount, engine flex. They all compound the problem of oscillation when the wheels start bouncing. Of course everything you alter to reduce the problem also causes less compliance in those areas, "a cock up to cure a cock up" if you like.
You don't need the Harrop housing unless you want it's other advantage (oil capacity) and the bling effect, there is a nice relatively cheaper urethane bush to replace the wobbly rubber piece.
The Fish normally have all of the common parts needed to start the process.
Yeah I spoke to them about there kits. Im gonna get the full 3 bush kit. Diff and trailing arm. Mine are spliting in two so there shot. Might be half the issue.
Start there and work on up.
Gassing Station | HSV & Monaro | Top of Page | What's New | My Stuff



IMHO
and talk it over with roger