engine question
Discussion
As the proud new owner of a 2002 tamora, I had a question or 2!
Dry sump lubrication. I understand the general concept, but no quite the pros and cons.
My understanding that it is better for racier cars because during high cornering, the engine cannot be starved of oil for the G's. Why then do normal engines not just have more than one oil pick up in the sump (say 4- one at each corner)? Thus solving the problem.
Also, the dry sump engine can be mounted lower in the car for a lower centre of gravity. Is this the case? Surely ground clearance would mostly dictate the lowest position of the engine?
No many questions for a slightly mechanically minded, but very interested newbie!!
What a car!!!
Paul
Dry sump lubrication. I understand the general concept, but no quite the pros and cons.
My understanding that it is better for racier cars because during high cornering, the engine cannot be starved of oil for the G's. Why then do normal engines not just have more than one oil pick up in the sump (say 4- one at each corner)? Thus solving the problem.
Also, the dry sump engine can be mounted lower in the car for a lower centre of gravity. Is this the case? Surely ground clearance would mostly dictate the lowest position of the engine?
No many questions for a slightly mechanically minded, but very interested newbie!!
What a car!!!
Paul
Question 1 - dry sump is better for g force in the corner, prevents oil starvation and offers more controlled oil flow, this could be argued in the speed six. It adds complication and cost to production cars, and hence isn't used often.
The biggest advantage though is packaging, substantially reducing the height of the engine, thereby making it fit the Tuscan engine bay, even then it had to be tilted over.
IMHO great that we have the best basis to build engines from!!!
The biggest advantage though is packaging, substantially reducing the height of the engine, thereby making it fit the Tuscan engine bay, even then it had to be tilted over.
IMHO great that we have the best basis to build engines from!!!
nrick said:
Other race engine parts on the speed six, individual throttle bodies, finger follower actuation of the valves, slipper pistons, forged rods, some billet cranks, and finally my favourite is the equal length exhaust primaries !!!!
The standard exhaust primaries weren't equal length ones IIRC...nrick said:
I stand corrected, anyone have the actual lengths, or changed the manifolds?
In fact thinking about it, what happens if you remove the cats/decats and went straight through, then you could go equal length and do the job properly?
N
I've had those changed on mine... In fact thinking about it, what happens if you remove the cats/decats and went straight through, then you could go equal length and do the job properly?
N
First day I arrived with it at home, the neighbour thought someone was firing a gun :-D
lawtoni said:
As the proud new owner of a 2002 tamora, I had a question or 2!
Dry sump lubrication. I understand the general concept, but no quite the pros and cons.
My understanding that it is better for racier cars because during high cornering, the engine cannot be starved of oil for the G's. Why then do normal engines not just have more than one oil pick up in the sump (say 4- one at each corner)? Thus solving the problem.
Also, the dry sump engine can be mounted lower in the car for a lower centre of gravity. Is this the case? Surely ground clearance would mostly dictate the lowest position of the engine?
No many questions for a slightly mechanically minded, but very interested newbie!!
What a car!!!
Paul
If you had 4 pickups on one pump then as soon as one pickup was uncovered the pump would suck air = bad things on a regular sump one pickup with a well designed sump / baffle arrangement does the jobDry sump lubrication. I understand the general concept, but no quite the pros and cons.
My understanding that it is better for racier cars because during high cornering, the engine cannot be starved of oil for the G's. Why then do normal engines not just have more than one oil pick up in the sump (say 4- one at each corner)? Thus solving the problem.
Also, the dry sump engine can be mounted lower in the car for a lower centre of gravity. Is this the case? Surely ground clearance would mostly dictate the lowest position of the engine?
No many questions for a slightly mechanically minded, but very interested newbie!!
What a car!!!
Paul
nrick said:
something along these lines would be nice 
I'd need an extra 4 cylinders to fit those tho ... (hmmm, now there's a thought...)Racing Green have an equal length manifold available, but I've been told the original TVR pipes airflow is very good,as is the standard airbox...
Edited by RedSpike66 on Sunday 29th May 22:25
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