RE: Twin-turbo Ford GT hits 257.7mph
Discussion
Stevie Mojo said:
If a car does 257mph in a mile then I'd consider that to be a big deal. If it's a twin turbo GT then even better.
Then again, I'm a petrol head.
Well go to Santa pod where they all do it, on non pump fuel and modified bodywork....Then again, I'm a petrol head.
Oh but it's fine, your a petrol head.......
Make an engine as powerful as you can, great, what's the big achievement? Porsche were making 1,200bhp race cars then running them round a track for 12 hours, 25 years ago... Or 240mph on the mulsane lap after lap after lap. I find that an achievment, this whole power struggle and how fast can my non street legal car go has been done to death.
But it's fine, all petrol heads must like it because its really really fast.
Greetings PH'ers
So my good friend Slinky has alerted me that you may have some questions regarding this vehicle and Mile racing competition. I will be happy to answer your questions to the best of my ability.
I will start with what has already been asked.
The Engine is a racing spec engine built by John Mihovetz of Accufab Racing. It is a 5.4 Litre engine built similar to the one used last year by Ray Hoffman to eclipse 267 mph in the mile at a testing event. It runs exclusively on VP C16 racing fuel. We are using a custom fabricated intake manifold built by Wilson and including an Ice Water to Air charge air cooler built by Precision Turbo and Engine. The car has one of my Ford GT Adapter Looms for M800 ECU and uses a MoTeC SDL3 Dash Logger and Shift Light Module. The gearbox is factory as is the remainder of the drivetrain. The car has all the proper safety equipment you would expect to see on a car of this speed capability, but is otherwise stock. Still has the power windows and a full interior minus the racing seats and even has Air Conditioning as they want to be able to drive this car on the street for shows and parades. It is street legal still.
Air Charge temps are in the low 100's F (mid 30s C) at the conclusion of the mile.
We don't know exactly what the power is at 257 but we estimate it to be in the neighborhood of 1600-1650 HP based on the testing we did a lower boost levels on the chassis dyno. We can then make an calculation based on fuel flow and volumetric efficiency at the higher boost levels and approximate a horsepower figure.
If you have additional questions or comments I will answer as I get time.
Thanks for your interest in this project.
Shane Tecklenburg
So my good friend Slinky has alerted me that you may have some questions regarding this vehicle and Mile racing competition. I will be happy to answer your questions to the best of my ability.
I will start with what has already been asked.
The Engine is a racing spec engine built by John Mihovetz of Accufab Racing. It is a 5.4 Litre engine built similar to the one used last year by Ray Hoffman to eclipse 267 mph in the mile at a testing event. It runs exclusively on VP C16 racing fuel. We are using a custom fabricated intake manifold built by Wilson and including an Ice Water to Air charge air cooler built by Precision Turbo and Engine. The car has one of my Ford GT Adapter Looms for M800 ECU and uses a MoTeC SDL3 Dash Logger and Shift Light Module. The gearbox is factory as is the remainder of the drivetrain. The car has all the proper safety equipment you would expect to see on a car of this speed capability, but is otherwise stock. Still has the power windows and a full interior minus the racing seats and even has Air Conditioning as they want to be able to drive this car on the street for shows and parades. It is street legal still.
Air Charge temps are in the low 100's F (mid 30s C) at the conclusion of the mile.
We don't know exactly what the power is at 257 but we estimate it to be in the neighborhood of 1600-1650 HP based on the testing we did a lower boost levels on the chassis dyno. We can then make an calculation based on fuel flow and volumetric efficiency at the higher boost levels and approximate a horsepower figure.
If you have additional questions or comments I will answer as I get time.
Thanks for your interest in this project.
Shane Tecklenburg
Mattygooner said:
Stevie Mojo said:
If a car does 257mph in a mile then I'd consider that to be a big deal. If it's a twin turbo GT then even better.
Then again, I'm a petrol head.
Well go to Santa pod where they all do it, on non pump fuel and modified bodywork....Then again, I'm a petrol head.
Oh but it's fine, your a petrol head.......
Make an engine as powerful as you can, great, what's the big achievement? Porsche were making 1,200bhp race cars then running them round a track for 12 hours, 25 years ago... Or 240mph on the mulsane lap after lap after lap. I find that an achievment, this whole power struggle and how fast can my non street legal car go has been done to death.
But it's fine, all petrol heads must like it because its really really fast.
XitUp said:
If they are dieseling and the piston rings are f
ked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?TunedByShaneT said:
Greetings PH'ers
So my good friend Slinky has alerted me that you may have some questions regarding this vehicle and Mile racing competition. I will be happy to answer your questions to the best of my ability.
I will start with what has already been asked.
The Engine is a racing spec engine built by John Mihovetz of Accufab Racing. It is a 5.4 Litre engine built similar to the one used last year by Ray Hoffman to eclipse 267 mph in the mile at a testing event. It runs exclusively on VP C16 racing fuel. We are using a custom fabricated intake manifold built by Wilson and including an Ice Water to Air charge air cooler built by Precision Turbo and Engine. The car has one of my Ford GT Adapter Looms for M800 ECU and uses a MoTeC SDL3 Dash Logger and Shift Light Module. The gearbox is factory as is the remainder of the drivetrain. The car has all the proper safety equipment you would expect to see on a car of this speed capability, but is otherwise stock. Still has the power windows and a full interior minus the racing seats and even has Air Conditioning as they want to be able to drive this car on the street for shows and parades. It is street legal still.
Air Charge temps are in the low 100's F (mid 30s C) at the conclusion of the mile.
We don't know exactly what the power is at 257 but we estimate it to be in the neighborhood of 1600-1650 HP based on the testing we did a lower boost levels on the chassis dyno. We can then make an calculation based on fuel flow and volumetric efficiency at the higher boost levels and approximate a horsepower figure.
If you have additional questions or comments I will answer as I get time.
Thanks for your interest in this project.
Shane Tecklenburg
Hi Shane,So my good friend Slinky has alerted me that you may have some questions regarding this vehicle and Mile racing competition. I will be happy to answer your questions to the best of my ability.
I will start with what has already been asked.
The Engine is a racing spec engine built by John Mihovetz of Accufab Racing. It is a 5.4 Litre engine built similar to the one used last year by Ray Hoffman to eclipse 267 mph in the mile at a testing event. It runs exclusively on VP C16 racing fuel. We are using a custom fabricated intake manifold built by Wilson and including an Ice Water to Air charge air cooler built by Precision Turbo and Engine. The car has one of my Ford GT Adapter Looms for M800 ECU and uses a MoTeC SDL3 Dash Logger and Shift Light Module. The gearbox is factory as is the remainder of the drivetrain. The car has all the proper safety equipment you would expect to see on a car of this speed capability, but is otherwise stock. Still has the power windows and a full interior minus the racing seats and even has Air Conditioning as they want to be able to drive this car on the street for shows and parades. It is street legal still.
Air Charge temps are in the low 100's F (mid 30s C) at the conclusion of the mile.
We don't know exactly what the power is at 257 but we estimate it to be in the neighborhood of 1600-1650 HP based on the testing we did a lower boost levels on the chassis dyno. We can then make an calculation based on fuel flow and volumetric efficiency at the higher boost levels and approximate a horsepower figure.
If you have additional questions or comments I will answer as I get time.
Thanks for your interest in this project.
Shane Tecklenburg
Thanks for taking the time to post on this thread. Its allways nice to hear from the guys involved in these monster projects.
Have you got any more info on the turbo / intercooler system used? From the pics the intake manifold looks to be in the stock location (obviously not with the great big supercharger sat on top). Also how much ice are you carrying in the car? are you using any other means of cooling the intake charge down (ie. meth injection)?
Finally what are your plans for the car in the future? I think the LMR boys are going to be going all out in October. Plus there is at least one vette thats making good power but wasn't ready in time for the this one.
Thanks again for posting on here.
Chris.
Mattygooner said:
Well go to Santa pod where they all do it, on non pump fuel and modified bodywork....
Oh but it's fine, your a petrol head.......
Make an engine as powerful as you can, great, what's the big achievement? Porsche were making 1,200bhp race cars then running them round a track for 12 hours, 25 years ago... Or 240mph on the mulsane lap after lap after lap. I find that an achievment, this whole power struggle and how fast can my non street legal car go has been done to death.
But it's fine, all petrol heads must like it because its really really fast.
What was Porchse budget? ANYTHING can be done with enough cash and people. They would have had hundreads of people designing and testing every component and had a limitless budget to build the car. Oh but it's fine, your a petrol head.......
Make an engine as powerful as you can, great, what's the big achievement? Porsche were making 1,200bhp race cars then running them round a track for 12 hours, 25 years ago... Or 240mph on the mulsane lap after lap after lap. I find that an achievment, this whole power struggle and how fast can my non street legal car go has been done to death.
But it's fine, all petrol heads must like it because its really really fast.
To put it in simple terms its like compearing Man U to a sunday league side!
Chris.
Mattygooner said:
Well go to Santa pod where they all do it, on non pump fuel and modified bodywork....
Oh but it's fine, your a petrol head.......
Make an engine as powerful as you can, great, what's the big achievement? Porsche were making 1,200bhp race cars then running them round a track for 12 hours, 25 years ago... Or 240mph on the mulsane lap after lap after lap. I find that an achievment, this whole power struggle and how fast can my non street legal car go has been done to death.
240mph was taking it steady! Oh but it's fine, your a petrol head.......
Make an engine as powerful as you can, great, what's the big achievement? Porsche were making 1,200bhp race cars then running them round a track for 12 hours, 25 years ago... Or 240mph on the mulsane lap after lap after lap. I find that an achievment, this whole power struggle and how fast can my non street legal car go has been done to death.
The old Pugs and Jags were hitting 250mph. I agree though. I find racing, braking, accelerating and cornering for 24 hours with those kinds of speeds involved a lot more impressive. Greetings.
The intake manifold, again was fabricated by Wilson to Accufab Racing spec's. It uses dual throttle bodies at the top rear of the plenum and feeds air vertically down through a Precision charge air cooler core. We carry 3 gallons of Ice and Water in a separate tank which is then pumped crossways through the core. We do not use any other charge cooling to reduce the temperature to the numbers described.
The turbos are PTB-7675s and we use the PW46 Wastegates also from Precision. Custom headers were fabricated by Kevin Kesterson at Hennessey to Accufab Racing specs.
We plan to run again in October. Our interest is in safely running the car to its maximum speed. We are not in a contest with other vehicles and we don't have a number in mind. We expect that we can eclipse our current speed of 257.7 MPH by more efficiently applying the power we have now to the ground both with power management, chassis dynamics and driving technique. Whatever that number winds up to be, we will be happy that we arrived there by extracting the maximum from the car at each interval by using the MoTeC logging to help us find where we can gain the most. We don't have the highest horsepower car out there so we need to use what we have as efficiently as possible.
Most of us are running on Hoosier Sports car racing tires and the Manufacturer recommends only 3 - 4 runs over 220 MPH so we are all a bit timid about safety, their is no prize money in this sport it is just for enjoyment. We don't want to hurt anyone by chasing after a crazy number with no regard for safety etc.
Shane T
The intake manifold, again was fabricated by Wilson to Accufab Racing spec's. It uses dual throttle bodies at the top rear of the plenum and feeds air vertically down through a Precision charge air cooler core. We carry 3 gallons of Ice and Water in a separate tank which is then pumped crossways through the core. We do not use any other charge cooling to reduce the temperature to the numbers described.
The turbos are PTB-7675s and we use the PW46 Wastegates also from Precision. Custom headers were fabricated by Kevin Kesterson at Hennessey to Accufab Racing specs.
We plan to run again in October. Our interest is in safely running the car to its maximum speed. We are not in a contest with other vehicles and we don't have a number in mind. We expect that we can eclipse our current speed of 257.7 MPH by more efficiently applying the power we have now to the ground both with power management, chassis dynamics and driving technique. Whatever that number winds up to be, we will be happy that we arrived there by extracting the maximum from the car at each interval by using the MoTeC logging to help us find where we can gain the most. We don't have the highest horsepower car out there so we need to use what we have as efficiently as possible.
Most of us are running on Hoosier Sports car racing tires and the Manufacturer recommends only 3 - 4 runs over 220 MPH so we are all a bit timid about safety, their is no prize money in this sport it is just for enjoyment. We don't want to hurt anyone by chasing after a crazy number with no regard for safety etc.
Shane T
Dan67 said:
XitUp said:
If they are dieseling and the piston rings are fked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?matthias73 said:
Dan67 said:
XitUp said:
If they are dieseling and the piston rings are fked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?Grovsie26 said:
hairykrishna said:
They still seem 'slow' thinking about it. Red Victor, that mental corvette in the US and doubtless many of their competitors do >200mph in a 1/4 and are road legal. I realise top speed is a different optimisation but with a taller final ratio there must be all kinds of things potentially faster than this over a mile?
He's English.XitUp said:
matthias73 said:
Dan67 said:
XitUp said:
If they are dieseling and the piston rings are fked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?TunedByShaneT said:
Greetings.
The intake manifold, again was fabricated by Wilson to Accufab Racing spec's. It uses dual throttle bodies at the top rear of the plenum and feeds air vertically down through a Precision charge air cooler core. We carry 3 gallons of Ice and Water in a separate tank which is then pumped crossways through the core. We do not use any other charge cooling to reduce the temperature to the numbers described.
The turbos are PTB-7675s and we use the PW46 Wastegates also from Precision. Custom headers were fabricated by Kevin Kesterson at Hennessey to Accufab Racing specs.
We plan to run again in October. Our interest is in safely running the car to its maximum speed. We are not in a contest with other vehicles and we don't have a number in mind. We expect that we can eclipse our current speed of 257.7 MPH by more efficiently applying the power we have now to the ground both with power management, chassis dynamics and driving technique. Whatever that number winds up to be, we will be happy that we arrived there by extracting the maximum from the car at each interval by using the MoTeC logging to help us find where we can gain the most. We don't have the highest horsepower car out there so we need to use what we have as efficiently as possible.
Most of us are running on Hoosier Sports car racing tires and the Manufacturer recommends only 3 - 4 runs over 220 MPH so we are all a bit timid about safety, their is no prize money in this sport it is just for enjoyment. We don't want to hurt anyone by chasing after a crazy number with no regard for safety etc.
Shane T
Shane, have you got any pics of the intake manifold? be intresting to see how it differs from the stock GT item. The intake manifold, again was fabricated by Wilson to Accufab Racing spec's. It uses dual throttle bodies at the top rear of the plenum and feeds air vertically down through a Precision charge air cooler core. We carry 3 gallons of Ice and Water in a separate tank which is then pumped crossways through the core. We do not use any other charge cooling to reduce the temperature to the numbers described.
The turbos are PTB-7675s and we use the PW46 Wastegates also from Precision. Custom headers were fabricated by Kevin Kesterson at Hennessey to Accufab Racing specs.
We plan to run again in October. Our interest is in safely running the car to its maximum speed. We are not in a contest with other vehicles and we don't have a number in mind. We expect that we can eclipse our current speed of 257.7 MPH by more efficiently applying the power we have now to the ground both with power management, chassis dynamics and driving technique. Whatever that number winds up to be, we will be happy that we arrived there by extracting the maximum from the car at each interval by using the MoTeC logging to help us find where we can gain the most. We don't have the highest horsepower car out there so we need to use what we have as efficiently as possible.
Most of us are running on Hoosier Sports car racing tires and the Manufacturer recommends only 3 - 4 runs over 220 MPH so we are all a bit timid about safety, their is no prize money in this sport it is just for enjoyment. We don't want to hurt anyone by chasing after a crazy number with no regard for safety etc.
Shane T
Also is there anywhere people can see the build of the car?
Thanks,
Chris.
matthias73 said:
XitUp said:
matthias73 said:
Dan67 said:
XitUp said:
If they are dieseling and the piston rings are fked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?http://www.youtube.com/watch?v=xGTbQuhhluY
And realise that this is one cylinder (out of eight).. Then google Nitromethane (the fuel used in Top Fuel)..
slinky said:
matthias73 said:
XitUp said:
matthias73 said:
Dan67 said:
XitUp said:
If they are dieseling and the piston rings are fked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?http://www.youtube.com/watch?v=xGTbQuhhluY
And realise that this is one cylinder (out of eight).. Then google Nitromethane (the fuel used in Top Fuel)..
http://ww1.prweb.com/prfiles/2012/03/26/9329666/GT...
This is a link to a shot of the engine bay. You can see the intake at the top and very bottom you see a triangle shape with a round fill hole which is the ice water storage tank.
No build thread that I know of.
Shane T
This is a link to a shot of the engine bay. You can see the intake at the top and very bottom you see a triangle shape with a round fill hole which is the ice water storage tank.
No build thread that I know of.
Shane T
Greg_D said:
slinky said:
matthias73 said:
XitUp said:
matthias73 said:
Dan67 said:
XitUp said:
If they are dieseling and the piston rings are fked how does cutting fuel stop the engine?
You haven't thought this through. Cut the petrol (or whatever they are running) Meaning the there is nothing to ignite under compression which means no more power delivered from the engine. So should produce engine braking slowing the engine down slightly but the large gearing will probably counteract thisked how does cutting fuel stop the engine?http://www.youtube.com/watch?v=xGTbQuhhluY
And realise that this is one cylinder (out of eight).. Then google Nitromethane (the fuel used in Top Fuel)..
k :|(googles nitromethane)
Double f
ks, I want one.Gassing Station | General Gassing | Top of Page | What's New | My Stuff