260 Dyno rolling run

[Les4048]

Originally Posted by trikey

Or it went bang

I'd hate to see all those pretty bits blown up

[T16]

Easy done if the big end bolts are weakened via over-revving

[Les4048]

Originally Posted by T16

Easy done if the big end bolts are weakened via over-revving

I'd not be putting it over 5000rpm. I think Dreadnought have stopped putting them on the rolling road too but I could be wrong there. I'm sure I read that somewhere though

[bl52krz]

Can not understand why people put their cars through relative torture to find out how many BHP and Torque lbsft the car has. Will it make any difference to the way you drive it? It is only a talking point for down the local hostellerie. How big is yours?

[Les4048]

Originally Posted by bl52krz

Can not understand why people put their cars through relative torture to find out how many BHP and Torque lbsft the car has. Will it make any difference to the way you drive it? It is only a talking point for down the local hostellerie. How big is yours?

Mines massive, and yours?

[VMax1000]

Originally Posted by Les4048

Mines massive, and yours?

adequate but with stamina


Besides, you can have all the BHP and torque you like. If you're a **** driver it won't help anyway

edit: ****= scrap (- s)

Didn't know 'c r a p' was not allowed by the swear filter

[whitevanman]

Going back to the inlet manifold plastic/metal debate, back in the 80's Suzuki on their bikes came up with TSCC (Twin Swirl Combustion Chambers) Some of the best men in the tuning world took the heads off the first ones and smoothed out all the 'rough as S' intakes..

They then found they had less power, Suzuki advised that the start of the process begins as the mix left the carbs and was finished by the time the mix was compressed by the piston..By polishing out all the lumpy bits in the inlets the tuners had completely screwed up the twin swirl..

Smooth doesn't always mean better..

[VMax1000]

Originally Posted by whitevanman

Going back to the inlet manifold plastic/metal debate, back in the 80's Suzuki on their bikes came up with TSSC (Twin Swirl Combustion Chambers) Some of the best men in the tuning world took the heads off the first ones and smoothed out all the 'rough as S' intakes..

They then found they had less power, Suzuki advised that the start of the process begins as the mix left the carbs and was finished by the time the mix was compressed by the piston..By polishing out all the lumpy bits in the inlets the tuners had completely screwed up the twin swirl..

Smooth doesn't always mean better..

Design versus ignorant I'd say. If it's designed to be a swirled, leave it swirled.

Bit like this really


And what is a Suzuki ???

[kaiser]

Originally Posted by whitevanman

Going back to the inlet manifold plastic/metal debate, back in the 80's Suzuki on their bikes came up with TSCC (Twin Swirl Combustion Chambers) Some of the best men in the tuning world took the heads off the first ones and smoothed out all the 'rough as S' intakes..

They then found they had less power, Suzuki advised that the start of the process begins as the mix left the carbs and was finished by the time the mix was compressed by the piston..By polishing out all the lumpy bits in the inlets the tuners had completely screwed up the twin swirl..

Smooth doesn't always mean better..

There is a difference between carbed and injected engines. The extra turbulence from rough surfaces increases the mix of petrol and air, giving a bigger surface area of the petrol molecules, thus a faster burn near TDC and less heat loss.
That has less of a bearing on the injected engines, where petrol is injected near the valve and atomized by the injector.

But back on track, I wonder why the OP has not followed up on his post.

[VMax1000]

Originally Posted by kaiser

There is a difference between carbed and injected engines. The extra turbulence from rough surfaces increases the mix of petrol and air, giving a bigger surface area of the petrol molecules, thus a faster burn near TDC and less heat loss.
That has less of a bearing on the injected engines, where petrol is injected near the valve and atomized by the injector.

But back on track, I wonder why the OP has not followed up on his post.

Yes, wonder how he got on.

With regards to injection, it only works for multi-point injection.

Single point is still very much a 'smart' carb

Oh, and molecules don't get bigger............or increase their surface area.
Molecule size and surface areas is pretty well defined by science

It's the better mix that helps