Track days = Dry Sump
#1
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Track days = Dry Sump
Whats the logic for when you need to dry sump a car thats a dedicated track day car?
Is it based on the engine, the car (and or the engine) or the type of G's your pulling through the corners via slicks etc
cheers
sean
Is it based on the engine, the car (and or the engine) or the type of G's your pulling through the corners via slicks etc
cheers
sean
#5
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I understand there are options to combat it, but im more interested on what basis you need to do something...
The options i'm aware of are:
Baffled Sump - a kit doesnt exist for my pug 16v
Dry Sump - I can get a PACE system for about 1k
Apollo Tank / Accusump - someone's looking into these for pugs
The options i'm aware of are:
Baffled Sump - a kit doesnt exist for my pug 16v
Dry Sump - I can get a PACE system for about 1k
Apollo Tank / Accusump - someone's looking into these for pugs
#6
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There are three main reasons for dry sumping a competition engine:
1- As stated above, it reduces the chance of pressure loss due to oil surge during hard cornering, and in the case of rally cars hard jumps & landings.
2- It massively decreases the amount of drag/impact stresses on the crank & rod assembly, as there is no longer a huge turbulent fluid surface for the crank to have to hit & cut through, this in turn means you can have a lighter crank assembly, which you can then rev harder. If regs preclude dry sumping, a windage tray is fitted to try to keep the fluid surface from affecting the crank.
3- As Bob T says you get to lower the engine in your chassis, in fact prodrive got the engine so low in the final mondeo touring cars that the offside drive shaft ran through the valley of the V6 with the inlet trumpets running either side of it This is not such a major reason in a rally car though, as you have to avoid the crank hitting the ground on hard landings
1- As stated above, it reduces the chance of pressure loss due to oil surge during hard cornering, and in the case of rally cars hard jumps & landings.
2- It massively decreases the amount of drag/impact stresses on the crank & rod assembly, as there is no longer a huge turbulent fluid surface for the crank to have to hit & cut through, this in turn means you can have a lighter crank assembly, which you can then rev harder. If regs preclude dry sumping, a windage tray is fitted to try to keep the fluid surface from affecting the crank.
3- As Bob T says you get to lower the engine in your chassis, in fact prodrive got the engine so low in the final mondeo touring cars that the offside drive shaft ran through the valley of the V6 with the inlet trumpets running either side of it This is not such a major reason in a rally car though, as you have to avoid the crank hitting the ground on hard landings
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