A question of torque
[QUOTE=Turtle,Apr 14 2005, 11:54 AM]
-sigh- what you really want off Honda would be tweaked gearing, improved low lobes (giving a nice boost from 4000-6000rpm), plus significant weight saving. Just imagine what a 1000kg S2000 with those other little tweaks would feel like.
-sigh- what you really want off Honda would be tweaked gearing, improved low lobes (giving a nice boost from 4000-6000rpm), plus significant weight saving. Just imagine what a 1000kg S2000 with those other little tweaks would feel like.
Originally Posted by Turtle,Apr 14 2005, 11:54 AM
-sigh- what you really want off Honda would be tweaked gearing, improved low lobes (giving a nice boost from 4000-6000rpm), plus significant weight saving. Just imagine what a 1000kg S2000 with those other little tweaks would feel like.
If I had a lot of money (I don't - I'm skint!), then you could really go to town. For example, replace the gearbox with a nice 6 speed sequential - 20kg's lighter than the stock box, better ratios, faster gearchange. Though the box is a few grand, plus you'd need to have a bellhousing made up.
-Brian.
If I had a lot of money (I don't - I'm skint!), then you could really go to town. For example, replace the gearbox with a nice 6 speed sequential - 20kg's lighter than the stock box, better ratios, faster gearchange. Though the box is a few grand, plus you'd need to have a bellhousing made up.
-Brian.
Don't worry, no FI, although those Jenvey ITBs sound like a bit of fun
Originally Posted by foz01,Apr 14 2005, 09:34 PM
Not a cost effective mod though
Those dyno plots some guys on the board posted a few weeks ago made very amusing reading.
[QUOTE=MarkB,Apr 14 2005, 08:55 AM]Bhp is the engine's capacity for doing work (work in this case is what makes the car go fast), so the higher the bhp the more potential the engine has.
Torque is the ability of the engine to turn the driveshaft at a given revs.
Torque is the ability of the engine to turn the driveshaft at a given revs.
Originally Posted by rahula,Apr 14 2005, 10:27 PM
1.What would be the required torque for the S engine to make it accelerate in any gear at 3k revs to get the same change in speed as the car does at 8300? Just a rough estimate if you are able to shed light.
2.Would I be right in assuming that an engine with similar bhp & lbft is always more desireable?
1. Simple answer is - it's not what you've got, but how you use it. The kind of accelleration you're looking for is what you feel at peak torque, which, if you look at a rolling road graph is the highest part of the torque curve, the point at which the torque curve stops rising and starts to go back down. What you're asking for is an engine with a different shaped torque curve, in effect a different engine, the flatter the curve the more of the available torque is accessible across the rev range.
2. No, an engine with big bhp and big torque is more 'powerful' in the sense that it can do more work and it can utilise that capacity for doing work more easily, but the relationship between the numbers themselves is purely mathematical.
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