slowly building a vl drag car wondering weather to keep it right hand drive or left hand

right hand drive, that way it might be easier to sneek a few laps on the street how's it coming along mate? u back into it? Some original photos have not been recovered yet.

yer got my steering colum yesterday so get the steering done and canstart moving it around again you now how it is and looks hym joint should be here tomorrow from mac brother and its going together

how fast u gunna go in it mate?

low 8s high 7s who nows its the car in my avatar

Any reason why you'd want it left hand drive? I don't see the point in changing it? Please explain.

Rotational and directional force of the motor makes the front left wheel go up in the air first. Some of the verrrry fast cars counteract this (to some extent) by using the driver's weight on the LHS.

Quote: Originally Posted by 5spdvl [View Post] Rotational and directional force of the motor makes the front left wheel go up in the air first. Some of the verrrry fast cars counteract this (to some extent) by using the driver's weight on the LHS. Can you throw up a diagram?

Quote: Originally Posted by 5spdvl [View Post] Rotational and directional force of the motor makes the front left wheel go up in the air first. Some of the verrrry fast cars counteract this (to some extent) by using the driver's weight on the LHS. I thought this was a myth because the driver and steering column is on the right hand side and majority of the weight is on the right hence why the left is known to carry further up. If the theory is true however, i am not debating whether it is or isn't, the inlet and exhaust manifold on some makes and engines is on the opposite side, i do not know if there is any effect on having the exhaust manifold on the passenger side RB and SR as opposed to a BARRA or 2JZ on the drivers side. I've been told the reason why many people go left hand drive is because many chassis shops over in the States adjust and tune left hand drive cars because as we know majority of them are left hand drive. Would it make any sense for Pac or Gas to buy a car already adjusted on the left and make it right hand when it already is a proven formula for the left?

Well, that was my understanding of it, but even so more weight on one side would definitely cause the same thing. If you look at slow-mo ro stills of cars getting their front ends up, the dip is always greatest at the right rear wheel; I thought this was because of the direction the motor turned, causing that wheel to get the most torque, and transferring it's effect to the opposite corner of the car. Quote: Originally Posted by AVL012345 Would it make any sense for Pac or Gas to buy a car already adjusted on the left and make it right hand when it already is a proven formula for the left? Not sure what point you're making there - by adjusted do mean converted to LH drive? No one would make such a major change if it wasn't worth the effort. I'm saying the tendency is for the left wheel to go up, and if you've already "adjusted" (converted to LH drive), then of course you wouldn't go backwards in it's development and convert it back to RH drive.

i think he means adjusts as in puts ballast on the other side and shock/spring setups? i dont know that much about the higher end drag racing but dont all the cars run ballast/extra weight to settle the car anyway?

I always assumed it was for better weight distribution in the car as they always pick up the left hand wheel

Quote: Originally Posted by 5spdvl [View Post] Well, that was my understanding of it, but even so more weight on one side would definitely cause the same thing. If you look at slow-mo ro stills of cars getting their front ends up, the dip is always greatest at the right rear wheel; I thought this was because of the direction the motor turned, causing that wheel to get the most torque, and transferring it's effect to the opposite corner of the car. Not sure what point you're making there - by adjusted do mean converted to LH drive? No one would make such a major change if it wasn't worth the effort. I'm saying the tendency is for the left wheel to go up, and if you've already "adjusted" (converted to LH drive), then of course you wouldn't go backwards in it's development and convert it back to RH drive. Yes but as you mentioned, if the engine motion causes one side to lift more than the other then would having the inlet/ exhaust manifolds on opposite ends (RB V 2JZ) possibly counter this if your theory is proven to be true? Then by adding weight to the side which is more affected could potentially neutralise the outcome no? But having looked at the the 2JZ powered VL's they seem to bag and lift the left hand wheel well and truly into the sky. Then you have vehicles who bring both tyres up evenly. The cars are already left hand drive, all Pro Turbo cars and chassis' that come from the States, Puerto Rico are all left hand drive vehicles (Pac Mazda 6, Gas Scion and Celica etc). I mean these chassis' have run well and truly into the 6 second bracket and are at the forefront in their respective classes. By "adjusted" i meant the chassis is tuned with the respective clutch and suspension/ shock settings to accomodate the power these engines are pushing and most teams have a basic understanding of the chassis. A fine tuned chassis is just as important as the amount of power the engine is making. With the years of experience and racing these American and Puerto Rican teams have had, would someone go against the grain and try a right handed chassis? Not saying it isn't possible though. Australian teams have also had years of experience with left handed chassis', Pac built the MX6 as a left handed race car. T Matty I too have heard that many teams use lead distribution weights to even out the weight but on top of that these cars are really really low so it does definately help.

Is there a minimum weight for the cars?

Quote: Originally Posted by AVL012345 [View Post] Yes but as you mentioned, if the engine motion causes one side to lift more than the other then would having the inlet/ exhaust manifolds on opposite ends (RB V 2JZ) possibly counter this if your theory is proven to be true? Then by adding weight to the side which is more affected could potentially neutralise the outcome no? But having looked at the the 2JZ powered VL's they seem to bag and lift the left hand wheel well and truly into the sky. Then you have vehicles who bring both tyres up evenly. The cars are already left hand drive, all Pro Turbo cars and chassis' that come from the States, Puerto Rico are all left hand drive vehicles (Pac Mazda 6, Gas Scion and Celica etc). I mean these chassis' have run well and truly into the 6 second bracket and are at the forefront in their respective classes. By "adjusted" i meant the chassis is tuned with the respective clutch and suspension/ shock settings to accomodate the power these engines are pushing and most teams have a basic understanding of the chassis. A fine tuned chassis is just as important as the amount of power the engine is making. With the years of experience and racing these American and Puerto Rican teams have had, would someone go against the grain and try a right handed chassis? Not saying it isn't possible though. Australian teams have also had years of experience with left handed chassis', Pac built the MX6 as a left handed race car. T Matty I too have heard that many teams use lead distribution weights to even out the weight but on top of that these cars are really really low so it does definately help. I think my point is "here", and your point is......... .................................................. .......................................over "here". Yes, you weigh down one side of a car, you're going to have adverse affects (less traction and thus to individual wheel, pull on the steering, etc). I haven't seen anything that's made me believe a 2JZ/RHS exhaust powered RH drive car is more likely to lift the opposite front wheel; and I honestly think the weight of those exhaust components, whilst certainly noticeable in a highly tuned chassis, is not as influential as the turning force of the motor. If someone can pull some engineering documentation to prove me wrong please do, because I had a look after last posting in this thread and couldn't find anything (partly because I'm not sure how to word the search string). Hell, how much effort went into KIL351? I've seen the photos of it very airborne, and the photos of it being weighed at each corner. Why did he not go LH drive? Rajab? TRP's VL (name eludes me)? VLGOD (current)? Is it because the exhaust components are on the opposite side to the driver? They still get the front left wheel airborne first and foremost. If we're talking about thoroughly tried and true methods pioneered by veterans of the sport overseas, and the guys above are all after the title, why aren't they converting to LH drive? (not having a go at you AVL012345, just genuinely interested ) Some original photos have not been recovered yet.

The fastest turbo car in the world is still RHD...... Rob Campisis mustang 5.95@ 265mph

Quote: Originally Posted by 5spdvl [View Post] I think my point is "here", and your point is......... .................................................. .......................................over "here". Yes, you weigh down one side of a car, you're going to have adverse affects (less traction and thus to individual wheel, pull on the steering, etc). I haven't seen anything that's made me believe a 2JZ/RHS exhaust powered RH drive car is more likely to lift the opposite front wheel; and I honestly think the weight of those exhaust components, whilst certainly noticeable in a highly tuned chassis, is not as influential as the turning force of the motor. If someone can pull some engineering documentation to prove me wrong please do, because I had a look after last posting in this thread and couldn't find anything (partly because I'm not sure how to word the search string). Hell, how much effort went into KIL351? I've seen the photos of it very airborne, and the photos of it being weighed at each corner. Why did he not go LH drive? Rajab? TRP's VL (name eludes me)? VLGOD (current)? Is it because the exhaust components are on the opposite side to the driver? They still get the front left wheel airborne first and foremost. If we're talking about thoroughly tried and true methods pioneered by veterans of the sport overseas, and the guys above are all after the title, why aren't they converting to LH drive? (not having a go at you AVL012345, just genuinely interested ) KIL351 was a street car and going left hand drive wasn't ideal. Not to mention the car left the line evenly with both wheels at par on a good run. It did have its days when both wheels were out of whack though. GH0747 and many others seem to pick up the front wheels evenly and so on and so forth. For the record, the name of the car the eluded you was Boostn (TRP). Why aren't they going LHS? Well that would be up to them due to comfort (not many are accustomed to LHS prefer RHS) , two would require some work and customs parts to make it work and modifications and three chassis builders choice to keep it on the RHS where they are confident they can tame the beast and keep the drivers relatively safe in their quest for glory. Someone off here spoke to a chassis shop over in the States (can't remember which person) about having their VL tubbed, they recommended making the car LHS. Correct me if i'm wrong but i recall seeing a high powered V8 VK and VL which were converted to LHS for drag racing purposes. Maybe someone who has done this can share some light on the issue. Not getting upset at you, i too am interested and curious to see the ideology and mechanics behind why people opt to keep their vehicles LHS or RHS. Some original photos have not been recovered yet.

Quote: Originally Posted by AVL012345 [View Post] Yes but as you mentioned, if the engine motion causes one side to lift more than the other then would having the inlet/ exhaust manifolds on opposite ends (RB V 2JZ) possibly counter this if your theory is proven to be true? Then by adding weight to the side which is more affected could potentially neutralise the outcome no? But having looked at the the 2JZ powered VL's they seem to bag and lift the left hand wheel well and truly into the sky. Then you have vehicles who bring both tyres up evenly. The cars are already left hand drive, all Pro Turbo cars and chassis' that come from the States, Puerto Rico are all left hand drive vehicles (Pac Mazda 6, Gas Scion and Celica etc). I mean these chassis' have run well and truly into the 6 second bracket and are at the forefront in their respective classes. By "adjusted" i meant the chassis is tuned with the respective clutch and suspension/ shock settings to accomodate the power these engines are pushing and most teams have a basic understanding of the chassis. A fine tuned chassis is just as important as the amount of power the engine is making. With the years of experience and racing these American and Puerto Rican teams have had, would someone go against the grain and try a right handed chassis? Not saying it isn't possible though. Australian teams have also had years of experience with left handed chassis', Pac built the MX6 as a left handed race car. T Matty I too have heard that many teams use lead distribution weights to even out the weight but on top of that these cars are really really low so it does definately help. It's the engine motion due to the rotational direction of the crank, not where the air comes in or goes out of. If the crank rotates in a clockwise direction, the torque induces an opposite anti-clockwise rotation in the engine block (towards the drivers side), which means the moment force drives the driver's front right wheel down and the left wheel in the air by twisting the chassis respectively. if your car is powerful enough to lift both front wheels off the ground, I don't think having 80kg in the left seat instead of the right will counteract anything.

are you doing a "stock style" suspension or going all out 4link? If your doing stock style suspension you may benefit by changing hand of drive if the car is twisting like a motherfv(ker. Usually this can be overcome by preloading the shocks on alternative sides to get it straight, however its not really ideal. If your a going an all out 4link, it wont matter as long as you install an antirollbar and have a set of sissy sticks to keep you straight. when setup correctly, cars run the entire track on the back wheels and keep going straight. http://www.youtube.com/watch?v=PufcNJHxLy8

The rear end set up has a ****load to do with how the car leaves the line. Factors like a panhard bar, etc all contribute to how the car will launch. Look at pics of GAS747 for example before and after the rear end work was done