4 Valve engines approaching a 100rwhp/L
08-05-2009, 09:55 PM
#17
Race Director
As far as I know, there are very few normally aspirated street able vehicles that produce 100 RWHP/L that have usable torque across a reasonable rpm band.
The S2000 is a great engine, but is really terrible to drive daily...having to spin the engine to 8K is not so much fun as it sounds.
The S2000 is a great engine, but is really terrible to drive daily...having to spin the engine to 8K is not so much fun as it sounds.
Looking at the stats on my 4.0L M3 engine...rated at 414hp-295 torque....I thought it also would be gutless down low.....I was surprised to find its NOT...then I looked at the torque curve....around 260-270ftlbs (wheel) from 3000 to 8000 rpm.....
http://en.wikipedia.org/wiki/List_of...e_superlatives
The record for a NA piston "street" (ya right) engine is 142.3HP/L but that was in a tiny 1.3L engine too.....Turbos go up to 202HP/L for the new Evo.....
But again these are TINY engines......a list of engines over 5L would be nice?
08-05-2009, 10:04 PM
#18
Nordschleife Master
This is a very good point........I've also driven both the 2.0L and 2.2L S2000's and a supercharged 2.0L @ 6psi (that had good midrange)....but both of the NA engines were a joke below about 6000rpm....
Looking at the stats on my 4.0L M3 engine...rated at 414hp-295 torque....I thought it also would be gutless down low.....I was surprised to find its NOT...then I looked at the torque curve....around 260-270ftlbs (wheel) from 3000 to 8000 rpm.....
http://en.wikipedia.org/wiki/List_of...e_superlatives
The record for a NA piston "street" (ya right) engine is 142.3HP/L but that was in a tiny 1.3L engine too.....Turbos go up to 202HP/L for the new Evo.....
But again these are TINY engines......a list of engines over 5L would be nice?
Looking at the stats on my 4.0L M3 engine...rated at 414hp-295 torque....I thought it also would be gutless down low.....I was surprised to find its NOT...then I looked at the torque curve....around 260-270ftlbs (wheel) from 3000 to 8000 rpm.....
http://en.wikipedia.org/wiki/List_of...e_superlatives
The record for a NA piston "street" (ya right) engine is 142.3HP/L but that was in a tiny 1.3L engine too.....Turbos go up to 202HP/L for the new Evo.....
But again these are TINY engines......a list of engines over 5L would be nice?
. Liter major manufacturer sport bikes are mostly above that threshold.
08-06-2009, 05:55 AM
#19
Nordschleife Master
My winter car is '06 M5 and it has 5.0L V10 with slightly over 500 hp straight out of the factory. It's very streetable on winter tires even in snow. One can pick up maybe 10% more power with (expensive) mods that still keep the car street legal and streetable, but not much more. Mine is bone stock.
This is a very good point........I've also driven both the 2.0L and 2.2L S2000's and a supercharged 2.0L @ 6psi (that had good midrange)....but both of the NA engines were a joke below about 6000rpm....
Looking at the stats on my 4.0L M3 engine...rated at 414hp-295 torque....I thought it also would be gutless down low.....I was surprised to find its NOT...then I looked at the torque curve....around 260-270ftlbs (wheel) from 3000 to 8000 rpm.....
http://en.wikipedia.org/wiki/List_of...e_superlatives
The record for a NA piston "street" (ya right) engine is 142.3HP/L but that was in a tiny 1.3L engine too.....Turbos go up to 202HP/L for the new Evo.....
But again these are TINY engines......a list of engines over 5L would be nice?
Looking at the stats on my 4.0L M3 engine...rated at 414hp-295 torque....I thought it also would be gutless down low.....I was surprised to find its NOT...then I looked at the torque curve....around 260-270ftlbs (wheel) from 3000 to 8000 rpm.....
http://en.wikipedia.org/wiki/List_of...e_superlatives
The record for a NA piston "street" (ya right) engine is 142.3HP/L but that was in a tiny 1.3L engine too.....Turbos go up to 202HP/L for the new Evo.....
But again these are TINY engines......a list of engines over 5L would be nice?
08-06-2009, 06:45 AM
#20
Nordschleife Master
Thanks!
Hi Tuomo,
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It depends on where you would like them delivered but the prices for each
back issue are shown below:
£12.50 - UK
£15.00 - Europe
£15.63 - USA/Canada
£16.25 - Rest of World
To buy any of the back issues please complete and return the attached form
or visit our website and buy directly through there, www.highpowermedia.com
If I can help further at all please do not hesitate to contact me.
Kind regards,
Chris.
chris@mediamuscle.co.uk
