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Search took 0.01 seconds. Search: Posts Made By: trebuchet03
Forum: General Fuel Topics 04-24-2007, 07:24 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
Why have high top speed... I just don't get it......

Why have high top speed... I just don't get it... With few exceptions, you're governed by the speed limit (or ticket).... Hell, I know for sure the MKIV+ VWs have tattle codes (they don't show up as...
Forum: General Fuel Topics 04-19-2007, 01:36 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
Yes... again - I'm not saying either way with the...

Yes... again - I'm not saying either way with the specific reference you gave...

I am saying, taking that one example and making it a rule is a fallacy (rule = result however result != rule) of...
Forum: General Fuel Topics 04-19-2007, 11:22 AM
Replies: 59
Views: 8,184
Posted By trebuchet03
It's not semantics ;) Fuel Economy = The...

It's not semantics ;)

Fuel Economy = The amount of fuel required to achieve the task at hand (that is, make power).
Thermal Efficiency = The amount of heat/energy (in this case chemical) required...
Forum: General Fuel Topics 04-19-2007, 09:21 AM
Replies: 59
Views: 8,184
Posted By trebuchet03
That's what I'm getting at... the engine cycles...

That's what I'm getting at... the engine cycles are not the same -- "sameness" means the system model is the same -- turbo charging can be modeled as a reheat stage (something the NA system won't...
Forum: General Fuel Topics 04-18-2007, 05:58 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
Careful... that is quite easily a fallacy...

Careful... that is quite easily a fallacy (slippery slope?)...

Thermal efficiency and fuel economy are very different things ;) If you want to compare the efficiency of heat engines, compare the...
Forum: General Fuel Topics 04-17-2007, 10:11 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
^^ that pretty much sums it up :thumbup: I...

^^ that pretty much sums it up :thumbup:

I just wanted to make sure that it wasn't assumed a turbo was "free" - it takes energy to compress a gas (luckily, a good deal would have been wasted) :P
Forum: General Fuel Topics 04-17-2007, 09:51 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
It should (I mean, there is tuning involved for...

It should (I mean, there is tuning involved for scavenging and such but a turbo is significant).... but the back pressure is coming from the turbo itself, not the muffler or other components....
Forum: General Fuel Topics 04-17-2007, 08:52 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
Without that pressure differential -- the turbine...

Without that pressure differential -- the turbine won't spin.... Or perhaps I'm missing what you're referring to :P
Forum: General Fuel Topics 04-17-2007, 08:14 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
Keep in mind that the turbo isn't free power ;)...

Keep in mind that the turbo isn't free power ;) It's just not leaching power directly off the crank :thumbup:
Forum: General Fuel Topics 04-17-2007, 03:44 PM
Replies: 59
Views: 8,184
Posted By trebuchet03
I sent this to you already... but for everyone...

I sent this to you already... but for everyone else...

Factory Super Turbo Nissan (https://autospeed.drive.com.au/cms/A_2216/article.html) Not available in the US of course.... but if you're in...
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