AJP V8 Specifications
Discussion
You could look up the old TVR pages on the webarchive. You'll not find the images, though.
Same facts as the MCD site, but with a bit more text.
"This engine is quite remarkable in design in that it owes more to the current trend in racing engines than to anything that has ever been seen before in a road car.
In other words, instead of basing a race engine on an existing road engine, TVR have developed an engine for the Cerbera out of a race engine. The result is that the Speed Eight has many features in it which would be more commonly found on an F1 engine.
Examples of these are its extremely sophisticated water circulation system, its lubrication system which delivers oil at high pressure to the engine and at low pressure to the crankshaft and a block so rigid that it can be used as a stressed member.
An all alloy engine with its eight cylinders arranged in a 75 degree Vee, the Speed Eight engine has more torque in its various specifications than any other normally aspirated petrol engine of equivalent size and weight. At 121 kg, the engine is indeed lighter than the V8 F1 and F3000 engines with which it shares so many features.
Many Speed Eight engine components are of extremely high quality such as the pistons and connecting rods which are forged and the camshafts which are rifle bored and are made of solid billet EN40B steel.
The net result is that the Speed Eight has performed extremely well in the most gruelling test known to engineers: to give forty of them to TVR Tuscan racing drivers to try to blow up every weekend for the past five seasons."
4.2
75 degree alloy V8 engine
Capacity (cc) 4185
Bore/stroke (mm) 88 x 86
Compression Ratio 10:1
Max power 360 bhp @ 6500 rpm
Max torque 320 ft.lbs @ 4500 rpm
Performance
0 to 60 mph in 4.2 secs
0 to 100 mph in 9.9 secs
Maximum speed 180 mph
4.5
75 degree alloy V8 engine
Capacity (cc) 4475
Bore/stroke (mm) 91 x 86
Compression Ratio 10.75:1
Max power 420 bhp @ 6750 rpm
Max torque 380 ft.lbs @ 5500 rpm
Performance
0 to 60 mph in 3.9 secs
0 to 100 mph in 8.3 secs
0 to 150 mph in 17.9 secs
Maximum speed +190 mph
Same facts as the MCD site, but with a bit more text.
"This engine is quite remarkable in design in that it owes more to the current trend in racing engines than to anything that has ever been seen before in a road car.
In other words, instead of basing a race engine on an existing road engine, TVR have developed an engine for the Cerbera out of a race engine. The result is that the Speed Eight has many features in it which would be more commonly found on an F1 engine.
Examples of these are its extremely sophisticated water circulation system, its lubrication system which delivers oil at high pressure to the engine and at low pressure to the crankshaft and a block so rigid that it can be used as a stressed member.
An all alloy engine with its eight cylinders arranged in a 75 degree Vee, the Speed Eight engine has more torque in its various specifications than any other normally aspirated petrol engine of equivalent size and weight. At 121 kg, the engine is indeed lighter than the V8 F1 and F3000 engines with which it shares so many features.
Many Speed Eight engine components are of extremely high quality such as the pistons and connecting rods which are forged and the camshafts which are rifle bored and are made of solid billet EN40B steel.
The net result is that the Speed Eight has performed extremely well in the most gruelling test known to engineers: to give forty of them to TVR Tuscan racing drivers to try to blow up every weekend for the past five seasons."
4.2
75 degree alloy V8 engine
Capacity (cc) 4185
Bore/stroke (mm) 88 x 86
Compression Ratio 10:1
Max power 360 bhp @ 6500 rpm
Max torque 320 ft.lbs @ 4500 rpm
Performance
0 to 60 mph in 4.2 secs
0 to 100 mph in 9.9 secs
Maximum speed 180 mph
4.5
75 degree alloy V8 engine
Capacity (cc) 4475
Bore/stroke (mm) 91 x 86
Compression Ratio 10.75:1
Max power 420 bhp @ 6750 rpm
Max torque 380 ft.lbs @ 5500 rpm
Performance
0 to 60 mph in 3.9 secs
0 to 100 mph in 8.3 secs
0 to 150 mph in 17.9 secs
Maximum speed +190 mph
Awesome!
And now a really dumb question
If the AJP stopped production cause of problems meeting emission targets how come the latest Corvette does meet the targets with a twin valve head. Not making a point /having a go or any bollox like that-just very puzzled as I thought the AJP V8 was retired because a twin valve head was the reson why it couldn't meet the emissions targets, and that always seemed a damn shame to me.
Yes I drive a Speed Six- ButI love V8's as well.
Hope the weekend is bright and dry wherever you are-not long till Spring
And now a really dumb question
If the AJP stopped production cause of problems meeting emission targets how come the latest Corvette does meet the targets with a twin valve head. Not making a point /having a go or any bollox like that-just very puzzled as I thought the AJP V8 was retired because a twin valve head was the reson why it couldn't meet the emissions targets, and that always seemed a damn shame to me.
Yes I drive a Speed Six- ButI love V8's as well.
Hope the weekend is bright and dry wherever you are-not long till Spring
The new Corvette is deffo a twin valve,see below
www.vette-vues.com/graphics/ZO6Engine2.pdf
So how come it passes emissions and the AJP doesn't? Is there a fix?
www.vette-vues.com/graphics/ZO6Engine2.pdf
So how come it passes emissions and the AJP doesn't? Is there a fix?
sideways mostly said:
The new Corvette is deffo a twin valve,see below
www.vette-vues.com/graphics/ZO6Engine2.pdf
So how come it passes emissions and the AJP doesn't? Is there a fix?
Probably, I would guess its to do with cam timing etc. But its probably easier to get the S6 past emissions, so its the way of the future.
Also I would say the SBC has been around for 50-60 years, and millions of units, so there is a lot of R&D water under the bridge.
Mr Cerbera said:
Ummm, just so you know,
It's a 72° Vee !
It is SOHC / Bank
It has a Flatplane crank
The first 63 engines were Dry Sump, although they were (almost) exclusively used in the Tuscan Challenge Race Series.
and if you want any more of my crap, take a look HERE
HTH
72 degrees? Why does everywhere say 75 deg? Not saying you're wrong, just curious.It's a 72° Vee !
It is SOHC / Bank
It has a Flatplane crank
The first 63 engines were Dry Sump, although they were (almost) exclusively used in the Tuscan Challenge Race Series.
and if you want any more of my crap, take a look HERE
HTH
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