How much Power does the Lotus Make

**Mighty Car Mods: Testing the Lotus Exige S240 on the Dyno**

In this episode of * Mighty Car Mods*, host [Your Host's Name] takes his beloved Lotus Exige S240 down to Haltech Performance to put it through its paces on the dyno. The car, which originally left the factory with 240 horsepower at the engine, has been on the road for over a decade and has completed numerous track days. The big question is: How much power is it really making at the wheels today?

### Arrival at Haltech

Upon arriving at Haltech, [Your Host's Name] is greeted by his friends Dave and Tuning Fork, who are busy with their usual high-octane car tuning projects. He expresses his gratitude for their accommodating him at such short notice, especially since they’re so busy with their demanding jobs. The hosts joke about the possibility of a pay rise for everyone involved, adding a light-hearted touch to the beginning of the episode.

The conversation then shifts to the Lotus Exige S240 itself. [Your Host's Name] mentions that the car’s name comes from its factory horsepower rating of 240. However, he suspects that some power may have been lost over the years due to wear and tear. The hosts discuss the importance of dyno testing to get an accurate reading of the car’s current power output at the wheels.

### Preparing for the Dyno Run

Before jumping into the dyno run, [Your Host's Name] shares some tips on how to fit into the tight confines of a racing car cockpit. He demonstrates how to position his legs and mentions that removing shoes gives him an extra inch of space. The hosts laugh as they try to visualize him contorting his body to fit inside the tiny car.

The conversation then turns serious as [Your Host's Name] explains the significance of dyno testing for any car, especially one that’s been modified or has seen a lot of track use. He emphasizes the importance of getting baseline power readings before making any performance modifications. This way, drivers can track the effectiveness of their upgrades and ensure they’re getting good value for their money.

### Technical Discussions

The hosts delve into technical details about drivetrain losses and the differences between horsepower at the engine versus horsepower at the wheels. [Your Host's Name] clarifies that drivetrain loss isn’t a fixed percentage but rather a combination of factors like friction, heat, and energy dissipation through components like the gearbox, torque converter, and differential.

He also touches on the difference between supercharged and turbocharged engines, explaining how superchargers deliver power in a more linear manner, requiring higher RPMs to make significant power. This is contrasted with turbocharged cars, which build power more gradually due to the lag inherent in turbo systems.

### Dyno Run Results

With all the groundwork laid, it’s time for the dyno run. The car is set up on the dynamometer, and [Your Host's Name] takes it for a few warm-up laps to ensure everything is running smoothly. After a couple of initial runs to get familiar with the car’s behavior on the dyno, they move on to the power runs.

The results are in! On three consecutive runs, the Lotus Exige S240 delivers an impressive 132-134 kilowatts (around 178-181 horsepower) at the wheels. The car’s supercharger produces a consistent boost pressure of around five to six pounds per square inch, and it shows no signs of power loss despite its age and mileage.

### Post-Dyno Reflections

[Your Host's Name] reflects on the results, noting that the car is in excellent condition for its age. The minimal drivetrain loss suggests that the engine and components are still performing as they should. However, he points out that the mid-range power could use some improvement to make the car even more enjoyable to drive.

The hosts discuss potential modifications to address the mid-range power issue while maintaining the car’s impressive top-end performance. [Your Host's Name] hints at some “epic” upgrades in the works for future episodes, which will be tested on the track.

### Conclusion

As they wrap up the dyno session, the hosts express their gratitude once again to Dave and Tuning Fork for their time and expertise. They also emphasize the importance of regular dyno testing for any car, not just high-performance vehicles like the Lotus Exige S240.

In the next episode, [Your Host's Name] will take viewers along as he installs some exciting modifications to his Lotus Exige S240, aiming to address the mid-range power deficit and take the car’s performance to the next level. Stay tuned for more thrilling car mods adventures!

"WEBVTTKind: captionsLanguage: enin this episode of mighty car mods i'm taking my lotus exige s240 down to haltech so i can run it on the dyno originally this car left the factory with 240 horsepower at the engine but what does that mean now it's been over 10 years on the road and completed numerous track days so how much power is it really making at the wheels today we're going to find out before embarking on some exciting performance modifications we're also going to be busting some myths and mysteries around dino power figures and learning all sorts of amazing education from our good mate tuning fork so i just got down to hal tech our good friends of course dave and the tuning fork are here we're gonna put the lotus on the dyno because it's completely untested at this point this car is called a lotus exige s240 because it made 240 horsepower but does it now i'm sure it probably did but i got a feeling some ponies have bolted the paddock so today we're going to jump in we're going to see just how much power it makes or doesn't make thank you so much these guys are so busy all the time doing amazing things making people's cars work all the time that's why they're on the big dollars and um and it's yeah is that right because i know you're i know your boss is going to see this they're so busy and they've accommodated me at very short notice today and i really appreciate it so thank you very much scott thank you very much dave i'm putting my hand up for pay rises for everyone everyone the old staff on behalf of youtube all right let's um jump in the internet i read the comments you want to see tuning fork trying to get into a lotus it's this it's about to happen this leg in yep that's where i'd be and then bum points away from the car so you end up this way with your leg out yep that's right and then you fold your other one in so so get your left leg in first yeah all right all right you know the one hint there though is first shoes off oh yes because that gives me an extra inch oh awesome yeah okay so left leg in but now face away from the car twist that's it yeah and then oh yeah i'm in now yeah this is the now bring that one in there it is you know what there it is like to be honest you've got room head room i would rather be sitting in this than an 86 i'm not joking really yep 100 wow knee to the corner in an 86 i pretty much like i find myself driving down the highway and kind of riding the clutch every now and then because i'm so stuck right i'll just leave it there it'll be all right it's not but here as you release the clutch you're going to be hitting the right indicator every time no we're feeling pretty good okay great this is actually pretty spacious the side thing here is a weird thing isn't it it's weird but i've got a bit of experience with this because most of the cars that come with big cages in them yeah have got maybe that's what's under there maybe that's what this is makes sense it feels you're a bit um you're a bit off tilt here a bit feel a bit um like you're being guided towards the middle guided towards performance well this whole pan bit here my understanding is this is all kind of bonded aluminium this whole thing weighs 60 kilos and then they put the clam shells on it some like space age technology i like that my friends in norfolk i like where your feet are going the um what's that called when you put the holes in it and then put that nice shape very pretty oh it's kind of very space-age isn't it and this here is the lotus um cup holder so this here was an option so this car has all the options now the options are air conditioning and a head unit and that cup holder it's not meant to come out when you have a bespoke vehicle that's just proof that it was handmade you know that looks like me if i pulled that out right if i went and played a game of golf and i hit my ball in the river yes oh yeah i see it yeah you pick up your golf ball now it's a good sound effect too from the factory 240 engine horsepowers if you pull one of these out of the factory on day one or after it's running and you put it on a dyno what kind of approximate kilowatts at the wheels would be getting just so that everyone from the different regions around the world were all on the same kind of page in kilowatts in this if being a 1.8 supercharged thing i've never touched one of these i don't know anything about them but just that capacity of engine supercharged as a production car and if this was making 125 130 kilowatts at the wheels i'd think that would be probably where it needs to be okay to sell it as a supercharged sports car okay and does 240 horsepower at the crank versus the wheels after drive drain loss and all the maths of that because there's so much talk about that all the time of how we work there's always magic so between like horse bearing kilowatts just a unit no magic there that's all pretty straightforward yeah one divided by one point three four or times one point three four horsepower in kilowatts close enough um this drivetrain loss thing even baffles me because oh something i'm so glad to hear that i'm so glad you tell me it's a percentage loss so you make 100 horsepower oh you're definitely 20 loss though 20 30 40 yeah whatever it can't be a percentage because remember when we lose that power it's it's got to go somewhere is it it's going in heat it's going in sound yes so if we had a a loss of 20 for example 20 of a thousand horsepower or 20 of 100 horsepower well there'd be 200 horsepower of heat and sound somewhere that's a lot of heat and sound yes and i find that hard to believe so i believe that it's a lot more of a constant yes there is a loss in friction there's loss in there's not so much a loss we know where it's going it's going in friction and it's going in heat through the gear box it's got in auto trains it'll be going through the torque converter putting it into the oil it's changing the direction so as the tail shaft goes to the back of the car for example you'll go into a diff which turns it into a right angle so there's going to be a frictional loss there in the diff as well um percentage loss i don't i don't think that's keen or sorry i think that's clean tuning fork everybody whatever you're doing right now i want you to stop what you're doing and in the comments i want a clapping emoji right now someone's finally said what everyone's been too scared to say on the internet for a long time there's you did it there's more to it than admittedly at the same time when my car made 700 horsepower and i wanted 800 horsepower i just assumed it had 100 horsepower of loss through the transmission 10 out of 10 for honesty that makes sense good yeah yeah okay so we would be expecting when the car was new maybe it made around 130 kilowatts at the wheels i would think that would be pretty fair to say now 10 years 11 years later we'll see if it's doing that or less or more and we'll find out and over time if the thing's driving good doesn't misfire doesn't carry on doesn't smoke out the exhaust i wouldn't expect much of it to have been lost i would expect it to be running as good as it did 10 years ago well some things are that we've either lost some power there or also i found out these tyres have been on the car for years years and years and years and so i'm just trying to ascertain what it is that's letting us down what that weakest link is and so here we are and just for interest and science how can we find out and before you modify your card this being a dead standard thing never a bad idea to go to the dyno just ask for three power runs just so that you can get a base of what power it makes at what engine rpm so that once you start doing your mods you can see sort of value for money and you can see maybe what is right and wrong in your car and then you can recommend to your mates well do this and do this but maybe don't worry about that because bang for buck wasn't worth it ladies and gentlemen another clap emoji did you already leave one before put another one in i want double comment double comment for the truth for the purity of the information all right should we render let's just run this i'm just getting excited all right it's time to go for our first run all right so all we're going to do today is being factory computer factory everything all i want to do is do three runs back to back yep the first couple of runs just to warm it up and get everything sort of in sync and make sure that we're reporting the right numbers and everything looks good yep the third one once the exhaust system's all heated up and everything's right the third one is the power that it makes great let's do it all right so we're away second your first time driving a lotus i think it probably is awesome i feel very fancy here we go full throttle superchargers on google all right let's go to the second one 132 very very consistent so i'd say that we're we're in the ballpark full throttle action so the thing has not lost i would say it hasn't lost anything at all it's pretty much it's as healthy as it's going to be and it's kind of what we expected for the boost pressure that's got which is somewhere between about five and a half and six and a half pounds of boost out of the supercharger it's a 1.8 liter engine it's got variable cam control it's got vtec toyota's tech yep toyota very good it made after three pulls it made 132 kilowatts 132.3 and then 134. okay so definitely in the ballpark we're going to round out the horsepower and so it makes 180 horsepower at the wheels at the rev limiter right up the top there which it was bouncing off the rev limiter at 85 and 70 so eight and a half thousand rpm so because of things supercharged it's really really linear power so if we look along the bottom here we'll see that we started the power but we started the dyno run 60 k's an hour at 2800 rpm yeah if we click here it was making 33 kilowatts yeah then the next one along at 80 kilometers an hour so remember in fourth gear 80 kilometers an hour or 3 800 rpm it's making close enough to 50 kilowatts yeah 100 k's an hour 70 kilowatts 120 k's an hour 90 kilos this this how it's real linear like that it's so linear look at it we get that on aspirated v8 sort of stuff so real big torquey engines or anything that's supercharged okay so the hardier revit the more power it makes it's as simple as that whereas a turbocharged car is going to go like this right come on up yep up here sustain and then but this thing needs the revs to make the boost if this has got 70 kilowatts here even though it's got more outright power than the 86 yeah i wonder with the 86 at 5000 rpm it probably has more than 70 kilowatts which means i should be driving this up here i should be driving it like a pea player in his run corolla harder you can rev it the better it's going to go in this particular application yeah where i think that this car would be great to drive it's because it's so linear so wherever you put your foot down it has a certain amount of power there and you know exactly what you're going to get just like an aspirator mode whereas in a turbocharged car if that's just people you never know where you're going to land right well yeah if you put your foot down here you might have 70 kilowatts if it's got five pounds of boost or it's about 20 pounds of boost it might make 120 100 350 kilowatts there yeah so while this thing has got boost in it it is supercharged the mid-range grunt is probably missing a little bit in this car compared to what you're used to and that will now be fixed scotty thank you so much my pleasure thanks for coming thank you to you and thank you to dave and now we are get to plan and get to scheming what happens next to get a little to get a little more get a little bit of mid-range in there nothing wrong with the top end a little bit of mid-range and then go back to the track in the next episode of mighty car mods we're installing some epic modificationsin this episode of mighty car mods i'm taking my lotus exige s240 down to haltech so i can run it on the dyno originally this car left the factory with 240 horsepower at the engine but what does that mean now it's been over 10 years on the road and completed numerous track days so how much power is it really making at the wheels today we're going to find out before embarking on some exciting performance modifications we're also going to be busting some myths and mysteries around dino power figures and learning all sorts of amazing education from our good mate tuning fork so i just got down to hal tech our good friends of course dave and the tuning fork are here we're gonna put the lotus on the dyno because it's completely untested at this point this car is called a lotus exige s240 because it made 240 horsepower but does it now i'm sure it probably did but i got a feeling some ponies have bolted the paddock so today we're going to jump in we're going to see just how much power it makes or doesn't make thank you so much these guys are so busy all the time doing amazing things making people's cars work all the time that's why they're on the big dollars and um and it's yeah is that right because i know you're i know your boss is going to see this they're so busy and they've accommodated me at very short notice today and i really appreciate it so thank you very much scott thank you very much dave i'm putting my hand up for pay rises for everyone everyone the old staff on behalf of youtube all right let's um jump in the internet i read the comments you want to see tuning fork trying to get into a lotus it's this it's about to happen this leg in yep that's where i'd be and then bum points away from the car so you end up this way with your leg out yep that's right and then you fold your other one in so so get your left leg in first yeah all right all right you know the one hint there though is first shoes off oh yes because that gives me an extra inch oh awesome yeah okay so left leg in but now face away from the car twist that's it yeah and then oh yeah i'm in now yeah this is the now bring that one in there it is you know what there it is like to be honest you've got room head room i would rather be sitting in this than an 86 i'm not joking really yep 100 wow knee to the corner in an 86 i pretty much like i find myself driving down the highway and kind of riding the clutch every now and then because i'm so stuck right i'll just leave it there it'll be all right it's not but here as you release the clutch you're going to be hitting the right indicator every time no we're feeling pretty good okay great this is actually pretty spacious the side thing here is a weird thing isn't it it's weird but i've got a bit of experience with this because most of the cars that come with big cages in them yeah have got maybe that's what's under there maybe that's what this is makes sense it feels you're a bit um you're a bit off tilt here a bit feel a bit um like you're being guided towards the middle guided towards performance well this whole pan bit here my understanding is this is all kind of bonded aluminium this whole thing weighs 60 kilos and then they put the clam shells on it some like space age technology i like that my friends in norfolk i like where your feet are going the um what's that called when you put the holes in it and then put that nice shape very pretty oh it's kind of very space-age isn't it and this here is the lotus um cup holder so this here was an option so this car has all the options now the options are air conditioning and a head unit and that cup holder it's not meant to come out when you have a bespoke vehicle that's just proof that it was handmade you know that looks like me if i pulled that out right if i went and played a game of golf and i hit my ball in the river yes oh yeah i see it yeah you pick up your golf ball now it's a good sound effect too from the factory 240 engine horsepowers if you pull one of these out of the factory on day one or after it's running and you put it on a dyno what kind of approximate kilowatts at the wheels would be getting just so that everyone from the different regions around the world were all on the same kind of page in kilowatts in this if being a 1.8 supercharged thing i've never touched one of these i don't know anything about them but just that capacity of engine supercharged as a production car and if this was making 125 130 kilowatts at the wheels i'd think that would be probably where it needs to be okay to sell it as a supercharged sports car okay and does 240 horsepower at the crank versus the wheels after drive drain loss and all the maths of that because there's so much talk about that all the time of how we work there's always magic so between like horse bearing kilowatts just a unit no magic there that's all pretty straightforward yeah one divided by one point three four or times one point three four horsepower in kilowatts close enough um this drivetrain loss thing even baffles me because oh something i'm so glad to hear that i'm so glad you tell me it's a percentage loss so you make 100 horsepower oh you're definitely 20 loss though 20 30 40 yeah whatever it can't be a percentage because remember when we lose that power it's it's got to go somewhere is it it's going in heat it's going in sound yes so if we had a a loss of 20 for example 20 of a thousand horsepower or 20 of 100 horsepower well there'd be 200 horsepower of heat and sound somewhere that's a lot of heat and sound yes and i find that hard to believe so i believe that it's a lot more of a constant yes there is a loss in friction there's loss in there's not so much a loss we know where it's going it's going in friction and it's going in heat through the gear box it's got in auto trains it'll be going through the torque converter putting it into the oil it's changing the direction so as the tail shaft goes to the back of the car for example you'll go into a diff which turns it into a right angle so there's going to be a frictional loss there in the diff as well um percentage loss i don't i don't think that's keen or sorry i think that's clean tuning fork everybody whatever you're doing right now i want you to stop what you're doing and in the comments i want a clapping emoji right now someone's finally said what everyone's been too scared to say on the internet for a long time there's you did it there's more to it than admittedly at the same time when my car made 700 horsepower and i wanted 800 horsepower i just assumed it had 100 horsepower of loss through the transmission 10 out of 10 for honesty that makes sense good yeah yeah okay so we would be expecting when the car was new maybe it made around 130 kilowatts at the wheels i would think that would be pretty fair to say now 10 years 11 years later we'll see if it's doing that or less or more and we'll find out and over time if the thing's driving good doesn't misfire doesn't carry on doesn't smoke out the exhaust i wouldn't expect much of it to have been lost i would expect it to be running as good as it did 10 years ago well some things are that we've either lost some power there or also i found out these tyres have been on the car for years years and years and years and so i'm just trying to ascertain what it is that's letting us down what that weakest link is and so here we are and just for interest and science how can we find out and before you modify your card this being a dead standard thing never a bad idea to go to the dyno just ask for three power runs just so that you can get a base of what power it makes at what engine rpm so that once you start doing your mods you can see sort of value for money and you can see maybe what is right and wrong in your car and then you can recommend to your mates well do this and do this but maybe don't worry about that because bang for buck wasn't worth it ladies and gentlemen another clap emoji did you already leave one before put another one in i want double comment double comment for the truth for the purity of the information all right should we render let's just run this i'm just getting excited all right it's time to go for our first run all right so all we're going to do today is being factory computer factory everything all i want to do is do three runs back to back yep the first couple of runs just to warm it up and get everything sort of in sync and make sure that we're reporting the right numbers and everything looks good yep the third one once the exhaust system's all heated up and everything's right the third one is the power that it makes great let's do it all right so we're away second your first time driving a lotus i think it probably is awesome i feel very fancy here we go full throttle superchargers on google all right let's go to the second one 132 very very consistent so i'd say that we're we're in the ballpark full throttle action so the thing has not lost i would say it hasn't lost anything at all it's pretty much it's as healthy as it's going to be and it's kind of what we expected for the boost pressure that's got which is somewhere between about five and a half and six and a half pounds of boost out of the supercharger it's a 1.8 liter engine it's got variable cam control it's got vtec toyota's tech yep toyota very good it made after three pulls it made 132 kilowatts 132.3 and then 134. okay so definitely in the ballpark we're going to round out the horsepower and so it makes 180 horsepower at the wheels at the rev limiter right up the top there which it was bouncing off the rev limiter at 85 and 70 so eight and a half thousand rpm so because of things supercharged it's really really linear power so if we look along the bottom here we'll see that we started the power but we started the dyno run 60 k's an hour at 2800 rpm yeah if we click here it was making 33 kilowatts yeah then the next one along at 80 kilometers an hour so remember in fourth gear 80 kilometers an hour or 3 800 rpm it's making close enough to 50 kilowatts yeah 100 k's an hour 70 kilowatts 120 k's an hour 90 kilos this this how it's real linear like that it's so linear look at it we get that on aspirated v8 sort of stuff so real big torquey engines or anything that's supercharged okay so the hardier revit the more power it makes it's as simple as that whereas a turbocharged car is going to go like this right come on up yep up here sustain and then but this thing needs the revs to make the boost if this has got 70 kilowatts here even though it's got more outright power than the 86 yeah i wonder with the 86 at 5000 rpm it probably has more than 70 kilowatts which means i should be driving this up here i should be driving it like a pea player in his run corolla harder you can rev it the better it's going to go in this particular application yeah where i think that this car would be great to drive it's because it's so linear so wherever you put your foot down it has a certain amount of power there and you know exactly what you're going to get just like an aspirator mode whereas in a turbocharged car if that's just people you never know where you're going to land right well yeah if you put your foot down here you might have 70 kilowatts if it's got five pounds of boost or it's about 20 pounds of boost it might make 120 100 350 kilowatts there yeah so while this thing has got boost in it it is supercharged the mid-range grunt is probably missing a little bit in this car compared to what you're used to and that will now be fixed scotty thank you so much my pleasure thanks for coming thank you to you and thank you to dave and now we are get to plan and get to scheming what happens next to get a little to get a little more get a little bit of mid-range in there nothing wrong with the top end a little bit of mid-range and then go back to the track in the next episode of mighty car mods we're installing some epic modifications\n"