A few questions...
Discussion
As a prospective buyer having sold my Noble last year, I`ve started looking at cars and I`ve got a couple of questions that hopefully someone will take the time to answer.
Firstly is there much to be gained by having a fuel injection system fitted to a SBC in place of the downdraft carburetor - would it help with the general smoothness of the engine as well as giving better fuel efficency.
Secondly on a car I viewed yesterday I noticed a significant amount of anhedral in the drive shafts - they sloped down significantly from the gearbox final drive to the rear hubs. (I`ve seen other cars and not noticed this - but then I never looked at that area - and I assume it`s designed that way).I presume this is because the installed engine centre line for the V8 is higher in the Ultima than in the flat 6 Porsche. Does this make the Lobros joints a weak area due to then running continuously at an angle?
Finally I understand the cars are very sensitive to set up geometry but are they also sensitive to tyre types?
Firstly is there much to be gained by having a fuel injection system fitted to a SBC in place of the downdraft carburetor - would it help with the general smoothness of the engine as well as giving better fuel efficency.
Secondly on a car I viewed yesterday I noticed a significant amount of anhedral in the drive shafts - they sloped down significantly from the gearbox final drive to the rear hubs. (I`ve seen other cars and not noticed this - but then I never looked at that area - and I assume it`s designed that way).I presume this is because the installed engine centre line for the V8 is higher in the Ultima than in the flat 6 Porsche. Does this make the Lobros joints a weak area due to then running continuously at an angle?
Finally I understand the cars are very sensitive to set up geometry but are they also sensitive to tyre types?
I have an efi SBC and it is amazing. Starts at the touch of a button no sitting there for 5 mins revving trying to get it to tick over. never stalls, load of aircon and electrics does not make it stall drives lovely whatever the temp/altitude.
Wonderful. Economy not much different but that depends if the carb was well set up. I also have a fully prog ignition system which helps as well but go efi if you can.
Only downside is that some systems require a lot of set up rather like a carb.
I have plug and play system by FAST and that is exactly it 5 mins to setup without a dyno. Have not touched it since.
Its a canam but if you want to try it give me a pm. I am in Southampton though
Wonderful. Economy not much different but that depends if the carb was well set up. I also have a fully prog ignition system which helps as well but go efi if you can.
Only downside is that some systems require a lot of set up rather like a carb.
I have plug and play system by FAST and that is exactly it 5 mins to setup without a dyno. Have not touched it since.
Its a canam but if you want to try it give me a pm. I am in Southampton though
BobE said:
As a prospective buyer having sold my Noble last year, I`ve started looking at cars and I`ve got a couple of questions that hopefully someone will take the time to answer.
Firstly is there much to be gained by having a fuel injection system fitted to a SBC in place of the downdraft carburetor - would it help with the general smoothness of the engine as well as giving better fuel efficency.
Secondly on a car I viewed yesterday I noticed a significant amount of anhedral in the drive shafts - they sloped down significantly from the gearbox final drive to the rear hubs. (I`ve seen other cars and not noticed this - but then I never looked at that area - and I assume it`s designed that way).I presume this is because the installed engine centre line for the V8 is higher in the Ultima than in the flat 6 Porsche. Does this make the Lobros joints a weak area due to then running continuously at an angle?
Finally I understand the cars are very sensitive to set up geometry but are they also sensitive to tyre types?
The Lobro joints have never been an issue on our car, despite the high forces and torque reversals etc we put on them.Firstly is there much to be gained by having a fuel injection system fitted to a SBC in place of the downdraft carburetor - would it help with the general smoothness of the engine as well as giving better fuel efficency.
Secondly on a car I viewed yesterday I noticed a significant amount of anhedral in the drive shafts - they sloped down significantly from the gearbox final drive to the rear hubs. (I`ve seen other cars and not noticed this - but then I never looked at that area - and I assume it`s designed that way).I presume this is because the installed engine centre line for the V8 is higher in the Ultima than in the flat 6 Porsche. Does this make the Lobros joints a weak area due to then running continuously at an angle?
Finally I understand the cars are very sensitive to set up geometry but are they also sensitive to tyre types?
hi
drive shafts have to at an angle of some type. If run in a straight line all the time, there is a wear issue.
Efi Mark has already mentioned however it can be costly compared to a normal carb... I love my carb as the car feels like a race car , and i love the flames on the over run..
Fuel consumption is low under hard driving, however i get over 20mpg at 70mph on the motorway as i have a G50/52 gear box.( i dont cruise very often)
drive shafts have to at an angle of some type. If run in a straight line all the time, there is a wear issue.
Efi Mark has already mentioned however it can be costly compared to a normal carb... I love my carb as the car feels like a race car , and i love the flames on the over run..
Fuel consumption is low under hard driving, however i get over 20mpg at 70mph on the motorway as i have a G50/52 gear box.( i dont cruise very often)
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