Paul Stephens Le Mans Classic Clubsport
Discussion
I wonder how much Williams are charging for their part in all this? The ram air from the intakes from the rear side windows must be substantial (although probably not as much as the latest GT3) to give a power uplift at speed which can’t be replicated in a wind tunnel. Look out for the red one at Goodwood...
IMI A said:
Yellow491 said:
fergus said:
IMI A said:
STiG911 said:
Also, think about how much is required to rework the air-cooled engines to get the power outputs they achieve.
Off topic I take the Singer power claims with a pinch of salt. Very difficult to get more than 330bhp from a normally aspirated air cooled engine and keep it drivable. It can be done and 3.8, 4.0 and 4.2 air-cooled rock above 3000 rpm but below this the air cooled high power normally aspirated cars tend have flat spots etc. Not driven a Singer but I'd love to see one on a UK dyno like Litchfield has. Also are they as light as they say they are? 1250kgs wet? Has anyone actually weighed them as those wheels look like the weigh a tonne on their own 
From Singer
3.8-liter, 350 horsepower, with Individual Throttle-bodies
[* intended for off-road useonly in certain territories]
Our 350BHP 3.8L normally aspirated, Porsche flat-six engine was developed in partnership with race-engine manufacturer Cosworth. It is hand-built in California by Ed Pink Racing Engines to exact tolerances, and benefits from state-of-the-art breakthroughs in intake design, cylinder head, piston, cylinder and rod design, plus fuel injection and engine management advances. We feel it to be a wonderful compromise between a high-revving, high horsepower Porsche racing engine and a torque rich, tractabledurable engine for the road. An optional nickel plated Air intake plenum is available for the 3.8L.
4.0-liter, 390 horsepower
[* intended for off-road use only in certain territories]
Our 390BHP 4.0-liter engine grew from the DNA of our 3.8L Cosworth engine and has been meticulously developed by the engineers at Ed Pink Racing Engines to create our ultimate incarnation of the normally aspirated flat-six. With a 7,200 RPM redline this engine is a monster in the best sense of the word and imbued with heroic levels of torque – around 315lb/ft, and thrilling peak power output tantalizing close to 400hp. As with all our engines it retains the case of the 964 and employs a bespoke crankshaft, oil pump, pistons, cylinders, connecting rods, cams, cylinder heads, throttle bodies and intake system. Performance is extreme with 60mph and 100mph arriving in sub 3.3 seconds and 8.2 seconds respectively.
It would be interesting to see how singer get 500bhp from a aircooled n/a,even with some help of ram air,i wonder what it revs to and the capacity,porsche struggle that with gt3 engines.
IMI A said:
Also are they as light as they say they are? 1250kgs wet? Has anyone actually weighed them as those wheels look like the weigh a tonne on their own
Road & Track magazine in America did a full track test of a Singer in 2015. They weighed it on their own scales and quoted a curb weight of 2743lb. I don't know what their definition of curb weight is, but if they followed their national SAE standards then it would include all fluids including fuel. 2743lb is 1244.2kg.Yellow491 said:
IMI A said:
Yellow491 said:
fergus said:
IMI A said:
STiG911 said:
Also, think about how much is required to rework the air-cooled engines to get the power outputs they achieve.
Off topic I take the Singer power claims with a pinch of salt. Very difficult to get more than 330bhp from a normally aspirated air cooled engine and keep it drivable. It can be done and 3.8, 4.0 and 4.2 air-cooled rock above 3000 rpm but below this the air cooled high power normally aspirated cars tend have flat spots etc. Not driven a Singer but I'd love to see one on a UK dyno like Litchfield has. Also are they as light as they say they are? 1250kgs wet? Has anyone actually weighed them as those wheels look like the weigh a tonne on their own From Singer
3.8-liter, 350 horsepower, with Individual Throttle-bodies
[* intended for off-road useonly in certain territories]
Our 350BHP 3.8L normally aspirated, Porsche flat-six engine was developed in partnership with race-engine manufacturer Cosworth. It is hand-built in California by Ed Pink Racing Engines to exact tolerances, and benefits from state-of-the-art breakthroughs in intake design, cylinder head, piston, cylinder and rod design, plus fuel injection and engine management advances. We feel it to be a wonderful compromise between a high-revving, high horsepower Porsche racing engine and a torque rich, tractabledurable engine for the road. An optional nickel plated Air intake plenum is available for the 3.8L.
4.0-liter, 390 horsepower
[* intended for off-road use only in certain territories]
Our 390BHP 4.0-liter engine grew from the DNA of our 3.8L Cosworth engine and has been meticulously developed by the engineers at Ed Pink Racing Engines to create our ultimate incarnation of the normally aspirated flat-six. With a 7,200 RPM redline this engine is a monster in the best sense of the word and imbued with heroic levels of torque – around 315lb/ft, and thrilling peak power output tantalizing close to 400hp. As with all our engines it retains the case of the 964 and employs a bespoke crankshaft, oil pump, pistons, cylinders, connecting rods, cams, cylinder heads, throttle bodies and intake system. Performance is extreme with 60mph and 100mph arriving in sub 3.3 seconds and 8.2 seconds respectively.
It would be interesting to see how singer get 500bhp from a aircooled n/a,even with some help of ram air,i wonder what it revs to and the capacity,porsche struggle that with gt3 engines.
At launch Singer were claiming 380bhp from their 3.8 and 425bhp from their 4.0. Obviously been on European dyno since launched 
http://www.evo.co.uk/porsche/911/13077/porsche-911...
http://www.evo.co.uk/porsche/911/13077/porsche-911...
IMI A said:
At launch Singer were claiming 380bhp from their 3.8 and 425bhp from their 4.0. Obviously been on European dyno since launched
http://www.evo.co.uk/porsche/911/13077/porsche-911...
https://www.roadandtrack.com/car-culture/a25850/exclusive-test-porsche-911-reimagined-by-singer/http://www.evo.co.uk/porsche/911/13077/porsche-911...
Then look at the more important torque numbers. A nice road engine? More like an off/on switch. Maybe thats why they define it as "off road"
ras62 said:
IMI A said:
At launch Singer were claiming 380bhp from their 3.8 and 425bhp from their 4.0. Obviously been on European dyno since launched
http://www.evo.co.uk/porsche/911/13077/porsche-911...
https://www.roadandtrack.com/car-culture/a25850/exclusive-test-porsche-911-reimagined-by-singer/http://www.evo.co.uk/porsche/911/13077/porsche-911...
Then look at the more important torque numbers. A nice road engine? More like an off/on switch. Maybe thats why they define it as "off road"
IMI A said:
Yellow491 said:
IMI A said:
Yellow491 said:
fergus said:
IMI A said:
STiG911 said:
Also, think about how much is required to rework the air-cooled engines to get the power outputs they achieve.
Off topic I take the Singer power claims with a pinch of salt. Very difficult to get more than 330bhp from a normally aspirated air cooled engine and keep it drivable. It can be done and 3.8, 4.0 and 4.2 air-cooled rock above 3000 rpm but below this the air cooled high power normally aspirated cars tend have flat spots etc. Not driven a Singer but I'd love to see one on a UK dyno like Litchfield has. Also are they as light as they say they are? 1250kgs wet? Has anyone actually weighed them as those wheels look like the weigh a tonne on their own From Singer
3.8-liter, 350 horsepower, with Individual Throttle-bodies
[* intended for off-road useonly in certain territories]
Our 350BHP 3.8L normally aspirated, Porsche flat-six engine was developed in partnership with race-engine manufacturer Cosworth. It is hand-built in California by Ed Pink Racing Engines to exact tolerances, and benefits from state-of-the-art breakthroughs in intake design, cylinder head, piston, cylinder and rod design, plus fuel injection and engine management advances. We feel it to be a wonderful compromise between a high-revving, high horsepower Porsche racing engine and a torque rich, tractabledurable engine for the road. An optional nickel plated Air intake plenum is available for the 3.8L.
4.0-liter, 390 horsepower
[* intended for off-road use only in certain territories]
Our 390BHP 4.0-liter engine grew from the DNA of our 3.8L Cosworth engine and has been meticulously developed by the engineers at Ed Pink Racing Engines to create our ultimate incarnation of the normally aspirated flat-six. With a 7,200 RPM redline this engine is a monster in the best sense of the word and imbued with heroic levels of torque – around 315lb/ft, and thrilling peak power output tantalizing close to 400hp. As with all our engines it retains the case of the 964 and employs a bespoke crankshaft, oil pump, pistons, cylinders, connecting rods, cams, cylinder heads, throttle bodies and intake system. Performance is extreme with 60mph and 100mph arriving in sub 3.3 seconds and 8.2 seconds respectively.
It would be interesting to see how singer get 500bhp from a aircooled n/a,even with some help of ram air,i wonder what it revs to and the capacity,porsche struggle that with gt3 engines.
993rsr
Wow. Which one is quicker? Is the 993 a fabled RSR?
On power levels how do you know if Ninemeister power claims accurate? Have a Carrera RS with stage 3 Ninemester 3.8 with 9m billet head etc - dyno and Ninemeister claim 330bhp and 300ft lbs of torque which is a bit less than 350-380bhp a few others claim for their 3.8 builds?
Anyone fancy an air-cooled dyno trip to Litchfield
On power levels how do you know if Ninemeister power claims accurate? Have a Carrera RS with stage 3 Ninemester 3.8 with 9m billet head etc - dyno and Ninemeister claim 330bhp and 300ft lbs of torque which is a bit less than 350-380bhp a few others claim for their 3.8 builds?
Anyone fancy an air-cooled dyno trip to Litchfield
IMI A said:
Wow. Which one is quicker? Is the 993 a fabled RSR? Yes its a factory rsr one of 22 cars built. 0 to 120mph the yellow one is way faster
On power levels how do you know if Ninemeister power claims accurate? Have a Carrera RS with stage 3 Ninemester 3.8 with 9m billet head etc - dyno and Ninemeister claim 330bhp and 300ft lbs of torque which is a bit less than 350-380bhp a few others claim for their 3.8 builds?
The claims are accurate on other rolling roads,its also about driveabilty not some shoot out on a rolling road.If you want 380 bhp,you need to do more than heads and exhaust etc. i have a spare set of rsr throttle bodies if interested as a starter.
The only proper way to set a car up is on a engine dyno with a lot of known values,a standard of fuel etc
Anyone fancy an air-cooled dyno trip to Litchfield
On power levels how do you know if Ninemeister power claims accurate? Have a Carrera RS with stage 3 Ninemester 3.8 with 9m billet head etc - dyno and Ninemeister claim 330bhp and 300ft lbs of torque which is a bit less than 350-380bhp a few others claim for their 3.8 builds?
The claims are accurate on other rolling roads,its also about driveabilty not some shoot out on a rolling road.If you want 380 bhp,you need to do more than heads and exhaust etc. i have a spare set of rsr throttle bodies if interested as a starter.
The only proper way to set a car up is on a engine dyno with a lot of known values,a standard of fuel etc
Anyone fancy an air-cooled dyno trip to Litchfield
Yellow491 said:
IMI A said:
Wow. Which one is quicker? Is the 993 a fabled RSR? Yes its a factory rsr one of 22 cars built. 0 to 120mph the yellow one is way faster
On power levels how do you know if Ninemeister power claims accurate? Have a Carrera RS with stage 3 Ninemester 3.8 with 9m billet head etc - dyno and Ninemeister claim 330bhp and 300ft lbs of torque which is a bit less than 350-380bhp a few others claim for their 3.8 builds?
The claims are accurate on other rolling roads,its also about driveabilty not some shoot out on a rolling road.If you want 380 bhp,you need to do more than heads and exhaust etc. i have a spare set of rsr throttle bodies if interested as a starter.
The only proper way to set a car up is on a engine dyno with a lot of known values,a standard of fuel etc
Anyone fancy an air-cooled dyno trip to Litchfield
On power levels how do you know if Ninemeister power claims accurate? Have a Carrera RS with stage 3 Ninemester 3.8 with 9m billet head etc - dyno and Ninemeister claim 330bhp and 300ft lbs of torque which is a bit less than 350-380bhp a few others claim for their 3.8 builds?
The claims are accurate on other rolling roads,its also about driveabilty not some shoot out on a rolling road.If you want 380 bhp,you need to do more than heads and exhaust etc. i have a spare set of rsr throttle bodies if interested as a starter.
The only proper way to set a car up is on a engine dyno with a lot of known values,a standard of fuel etc
Anyone fancy an air-cooled dyno trip to Litchfield
v8ksn said:
Did any of these 'creations' actually sell ?
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