Author | Topic |
Location: Melbourne
Registered: May 2002
|
Re: Tough GZE build up
|
Thu, 06 January 2005 02:03
|
|
drift86levin wrote on Wed, 05 January 2005 14:16 | no doubt the S/C 'sapps' power, then has to create it again, then more! it has a tough life and a high expectation already..i agree 100% turbo is better..later i will go down that path, but i want to see how far i can go with the s/c, befor spending another $2000 on the engine..
|
FWIW, here's a quote from the excellent 'Forced induction performance tuning' book:
"Porsche did some comparison thesting on a 16-valve 2.6 litre 944 some time back with both a Roots blower and a turbocharger.... the Roots blower made close to maximum boost within abot 2.5 seconds or the throttle being floored. By comparison the turbo car has virtually no boost registering at this stage. In fact, it takes over 10 seconds for the turbo to make the same boost as the blower."
In other words, whilst a turbo will ultimately make more power, it will only do so at very high RPM. It will have a distinct torque disadvantage in the low and middle RPM, which is where most ordinary driving is done.
Sure, a Roots blower will be relatively inefficient, especially at higher revs, but it will outperform a turbo motor in everyday use.
Go the blower.
|
|
|
| Subject | Poster | Date |
|
Tough GZE build up
|
drift86levin | Mon, 03 January 2005 12:14 |
|
Re: Tough GZE build up
|
mr2drift | Mon, 03 January 2005 12:45 |
|
Re: Tough GZE build up
|
feral4mr2 | Mon, 03 January 2005 12:56 |
|
Re: Tough GZE build up
|
foxtail | Mon, 03 January 2005 13:33 |
|
Re: Tough GZE build up
|
drift86levin | Mon, 03 January 2005 22:22 |
|
Re: Tough GZE build up
|
Rallystanza | Mon, 03 January 2005 23:10 |
|
Re: Tough GZE build up
|
THE WITZL | Mon, 03 January 2005 23:23 |
|
Re: Tough GZE build up
|
drift86levin | Mon, 03 January 2005 23:40 |
|
Re: Tough GZE build up
|
foxtail | Tue, 04 January 2005 07:43 |
|
Re: Tough GZE build up
|
drift86levin | Tue, 04 January 2005 08:16 |
|
Re: Tough GZE build up
|
drift86levin | Tue, 04 January 2005 08:17 |
|
Re: Tough GZE build up
|
Mr Revhead | Tue, 04 January 2005 08:49 |
|
Re: Tough GZE build up
|
drift86levin | Tue, 04 January 2005 09:56 |
|
Re: Tough GZE build up
|
monkeymajik | Tue, 04 January 2005 13:50 |
|
Re: Tough GZE build up
|
THE WITZL | Tue, 04 January 2005 23:53 |
|
Re: Tough GZE build up
|
86twinky | Wed, 05 January 2005 00:21 |
|
Re: Tough GZE build up
|
drift86levin | Wed, 05 January 2005 03:16 |
|
Re: Tough GZE build up
|
cswan | Thu, 06 January 2005 02:03 |
|
Re: Tough GZE build up
|
AE86slut | Thu, 06 January 2005 02:24 |
|
Re: Tough GZE build up
|
monkeymajik | Thu, 06 January 2005 02:27 |
|
Re: Tough GZE build up
|
THE WITZL | Thu, 06 January 2005 04:42 |
|
Re: Tough GZE build up
|
ke382TG | Thu, 06 January 2005 05:34 |
|
Re: Tough GZE build up
|
cswan | Tue, 18 January 2005 01:26 |
|
Re: Tough GZE build up
|
white86 | Tue, 18 January 2005 03:41 |