PorscheBoost - General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles

PorscheBoost - General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles http://www.PorscheBoost.com/ General Automotive, Motorsport, Tuning, Modification, and Motorcycle talk. en Tue, 18 Jun 2013 05:18:53 GMT vBulletin 60 http://www.porscheboost.com/images/misc/rss.png PorscheBoost - General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles http://www.PorscheBoost.com/ Race fuel transport / dispense at track http://www.porscheboost.com/showthread.php?40683-Race-fuel-transport-dispense-at-track&goto=newpost Sat, 08 Jun 2013 23:01:34 GMT Hey guys, I have a 5 gallon pail of MS109 and was wondering what people are using to transport to and use at track utility jug / funnel / other? ... Hey guys,

I have a 5 gallon pail of MS109 and was wondering what people are using to transport to and use at track utility jug / funnel / other?

Wish list

-easy to dispense no spillage (5-gallon pail into jug? or jug into car)
-no fumes, container sealed
-ability to measure volume would be nice
-approved at the track ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles bv1 http://www.porscheboost.com/showthread.php?40683-Race-fuel-transport-dispense-at-track Someone help me decide on my next car http://www.porscheboost.com/showthread.php?40635-Someone-help-me-decide-on-my-next-car&goto=newpost Fri, 07 Jun 2013 19:16:45 GMT I know a lot of you have driven/own all the cars I'm looking at, so it would be great to hear some opinions.

I have some time before I purchase one, but I feel it would be good to start looking for the right car (or at least decide what I want) soon. These aren't cars I can find locally, so I want to know what I want before I drive all over the country trying to figure it out lol.

Here are the following cars (as of now) that I am considering:

GTR (new)
997.1 or 997.2 GT3 RS (used) - would prefer 997.2
997.1 Turbo (used) - I like the 997.1 because you can make much more power on stock internals

Now that I have the list, if anyone has driven any or all of these cars and can give me some feedback, that would be great! Obviously I need to drive all of these cars before I make the final decision, but if someone could help me narrow it down to at least two cars, that would be a huge time saver. ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles Forcefed http://www.porscheboost.com/showthread.php?40635-Someone-help-me-decide-on-my-next-car The Koenigsegg One:1 - 1400hp, 1hp:1kg http://www.porscheboost.com/showthread.php?40616-The-Koenigsegg-One-1-1400hp-1hp-1kg&goto=newpost Fri, 07 Jun 2013 08:00:48 GMT It is rumored that a special one off version of the Agera, called the One:1, is being crafted behind closed doors in Ängelholm, Sweden. 1400hp and a... It is rumored that a special one off version of the Agera, called the One:1, is being crafted behind closed doors in Ängelholm, Sweden. 1400hp and a power to weight of 1hp:1kg(2.2lbs). I think we can figure out what the name signifies. Sadly, the One:1 is destined for the Chinese market only.

Click here to enlarge

Personally, I don't think it looks the greatest. That being said, the aerodynamic enhancements depicted in the renderings suggest a considerable increase in downforce and stability over the "plain" Agera.

Attached Images

]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles DFM http://www.porscheboost.com/showthread.php?40616-The-Koenigsegg-One-1-1400hp-1hp-1kg Whats the best way to get into HPDE type events? http://www.porscheboost.com/showthread.php?40351-Whats-the-best-way-to-get-into-HPDE-type-events&goto=newpost Fri, 31 May 2013 19:29:46 GMT I've always wanted to do some track day events, nothing serious. For you experienced guys, what is your suggestion for getting into the scene. I've checked out the HPDE events website for nasa, and i understand alot of guys go through BMW CCA, but just wondered what suggestions some might have in hindsight.

Any feedback is greatly appreciate :handgestures-thumb: ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles lulz_m3 http://www.porscheboost.com/showthread.php?40351-Whats-the-best-way-to-get-into-HPDE-type-events Kenneth Moen flawless hill climb drift. Ken Block, lol http://www.porscheboost.com/showthread.php?40337-Kenneth-Moen-flawless-hill-climb-drift-Ken-Block-lol&goto=newpost Fri, 31 May 2013 10:04:54 GMT Note the lack of tire marks on the road.... http://www.youtube.com/watch?v=vChyiDtdlI8 Note the lack of tire marks on the road....

]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles DFM http://www.porscheboost.com/showthread.php?40337-Kenneth-Moen-flawless-hill-climb-drift-Ken-Block-lol <![CDATA[Gearing's affect on the dyno, how a dyno reads, and general gearing principles talk]]> http://www.porscheboost.com/showthread.php?40264-Gearing-s-affect-on-the-dyno-how-a-dyno-reads-and-general-gearing-principles-talk&goto=newpost Wed, 29 May 2013 20:52:57 GMT It's hard to explain sometimes - especially when dynos are factored in...

A dyno should read the same - given proper calibration - for a given car in any gear. Yes, a car in 1st gear will rotate the drum to a small amount of speed in a short amount of time; a car in 6th gear will accelerate/rotate that same drum to a large amount of speed in a large amount of time... These two speed/time values are exactly the same when divided. The only reason that I have read to use as close to a 1:1 ratio when dynoing your car is because there is less parasitc loss in the higher gears than lower. In other words, 1st gear saps more power than 6th due to the fact that the engine has to spin these gears much faster in 1st than in 6th. This means more heat, more friction, etc...

One thing that a dyno WILL NEVER SHOW is how gearing will affect the actual accelerative force of a car. That's not the point of a dyno - the point of a dyno is to measure the engine's average power output - that's it.

To keep things simple, think of the equation for HP: HP = TQ * RPM / 5252 (speaking imperial here)... Torque and RPM are EXACTLY EQUAL in contribution to power. If you have 1 extra lb-ft of torque than I do, but I have the capability to spin my motor 1 RPM more than you - we have the same exact power capability.

Now take gearing into consideration. We all know your car accelerates harder in a lower gear than a taller gear. This is something everyone can agree on - and surely has "felt" 1st gear pulling harder than 6th while driving any car. Take the simple example of two cars both making 300 ft-lb of torque from 0 RPM all the way to 5000 RPM (redline). Both cars have the same gears. One car gets a "tune"
- we'll just say a lightened valve train to keep this simple. This newly tuned car has a redline of 6000 RPM - and still can create the same amount of torque at this new RPM. Without changing gears, we can see that the horsepower for the tuned car went up ((6000 RPM instead of 5000 RPM) * TQ/5252). Power for this car went up exactly 20% - torque at the crank is still the same.

Without any gear changes, we see that the tuned car is already faster than the untuned. Now say - we want the road speed of the newly tuned car to match the road speed of the "stock" car in every gear at redline. In other words, we want both cars to achieve the exact same MPH at redline for every gear. We see that something has to change - since the tuned car now can spin 1000 more RPMs than the other. We need to "gear down" the tuned car. Specifically - we need to gear it down 20% (6000 RPM - 5000 RPM / 5000 RPM) [newValue - oldValue / oldValue = percentage changed]... Because the gearing is now 20% lower than the other/stock car, yet the car still reaches the exact same speed in each gear - and torque output is unchanged, the car "requires" 20% less force from the engine throughout the entire RPM range in every single gear to reach the same speed (any speed ) as the untuned car. In other words - we just increased the amount of torque to the ground by 20% by adding 1000 RPMs and changing the gearing to take advantage of the RPMs. We now have the ability to accelerate 20% harder without any more torque at the crank. Note now, that we would see 20% more power on the dyno for the tuned car, and the same amount of torque in both cars.

Now let's change the gearing again on the tuned car. Torque and power remain the same on a dyno (we did nothing to increase power this time) - we are now only changing gearing to take advantage (mechanical advantage) of our new redline. Lets say we want to reach 40 as opposed to 50 MPH in the tuned car. This is a decrease in speed of 20% in each gear (differential change). The same exact logic/math/physics as the paragraph above still applies. By reducing the road speed in each gear, something must change. We are "freeing" up 20% more torque at the ground in favor of a 20% lower speed in every gear at redline. Nothing changes on the dyno - the dyno still reads the same; you are instead accelerating a mass (the drum) 20% "harder" in exchange for 20% less speed at redline; in other words drum will accelerate exactly 20% more quickly than the untuned car in the same gear, however it's ending speed at redline will be 20% slower (you exchanged one thing for another).

We can see why additional RPMs are equally if not more important - especially when gearing is factored in. This is the reason that the M3 has a high redline; this is by design. The same applies for F1 - they have small displacement NA engines creating moderate TQ at the crank, yet spin the heck out of it. They spin the heck out of it to take advantage of gearing (torque at the pavement).

This article explains it VERY well - and is much shorter than what I wrote: Excellent Article explaining this perfectly - see slide 6,7,9 and 10.

Average horsepower is all that matters. Torque at the crank means nothing unless it's at a high RPM (creating high amounts of horsepower). With a higher RPM, you can use mechanical advantage to your advantage - to accelerate a mass more quickly to a slower end speed in a given gear. That's it in a nutshell... It's really simple - however, when dynos are thrown in (along with some operators who can skew results for their benefit - another discussion) - it's extremely hard if not impossible to understand the characteristics of two cars with two different engines by looking at a power curve without taking into consideration anything else - specifically torque at high RPMs and gearing.

In general, it is favorable in racing to have a high redline yet good breathing (to make torque at that high redline) engine so you can take advantage of gearing. You can have less or more torque (in trade off for top speed) on different circuits by altering your gear sets. The more RPM range you have (while still being able to make torque at the crank) - the more flexible an engine is for a race car (or any car), as you can tailor gearing to suit a specific situation. Just as you choose the amount of torque to the ground everyday while driving by choosing a lower or higher gear/shifting gears. With DCT - the RPM/redline/gearing advantage increases dramatically, as shift counts increase with lower gearing. During a shift you are not accelerating - if you have a standard transmission with 100 gears to "take advantage" of a low RPM redline and low crank TQ engine, you are essentially losing time all over the place. This is a key, RPMs are needed both for the component in the formula for HP (TQ X RPM / 5252) and needed to take advantage of a lower gear to produce more torque/force at the ground (acceleration).

Hope that helps.

This is another good read, however it's in a forum. The guy is an expert in the area of dynamometers (Mustang dyno engineer) http://forums.nasioc.com/forums/show...1478091&page=2

If there is anything you read - read the PDF in the first link - it explains it professionally and accurately.

Cheers. ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles inlineS54B32 http://www.porscheboost.com/showthread.php?40264-Gearing-s-affect-on-the-dyno-how-a-dyno-reads-and-general-gearing-principles-talk <![CDATA[On-board footage of Schumacher's Nordschleife lap]]> http://www.porscheboost.com/showthread.php?40244-On-board-footage-of-Schumacher-s-Nordschleife-lap&goto=newpost Wed, 29 May 2013 10:56:19 GMT http://youtu.be/rsclF-mUksQ ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles Sparky68 http://www.porscheboost.com/showthread.php?40244-On-board-footage-of-Schumacher-s-Nordschleife-lap Formula 1 Monaco GP infographic http://www.porscheboost.com/showthread.php?40040-Formula-1-Monaco-GP-infographic&goto=newpost Fri, 24 May 2013 22:31:47 GMT Though that was cool: Image: http://www.germanboost.com/images/imported/2013/05/kuxlarge-4.jpg Though that was cool:

Click here to enlarge

]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles Sticky http://www.porscheboost.com/showthread.php?40040-Formula-1-Monaco-GP-infographic <![CDATA[Great article about sports cars and "the ladies"...]]> http://www.porscheboost.com/showthread.php?40023-Great-article-about-sports-cars-and-quot-the-ladies-quot&goto=newpost Fri, 24 May 2013 16:49:48 GMT http://plays-with-cars.kinja.com/sports-cars-dont-really-attract-women-509484614 I think this is a great article. I generally agree with it, I... http://plays-with-cars.kinja.com/spo...omen-509484614

I think this is a great article. I generally agree with it, I have owned three "sports" cars and have gotten a lot more attention from teenage boys, and middle aged men than I have from girls. I do have to make two exceptions, my current car (2011 Camaro SS) garners lots of attention from ugly 45+ year old women and really poor, white trash, teenagers. Being married, this suits me just fine. I didn't buy my car looking to pick up chicks.

The authors is right, women don't care about cars, but he misses one key point. Women may not care about cars, but they do care about money. Owning a nice car symbolizes money. Most people probably don't know that Lotus' are special cars. Everyone knows a BMW, Mercedes, Ferrari, Corvette, etc... are special, expensive cars. Thus, I think the guy would have had better luck with a car with some brand recognition so "the ladies" would think he was rich.

Here's the great thing, if you are looking to pick up on the ladies, you'll probably do just as well with an Escalade, a Range Rover, an E-class or a 5-series as you will with an M3, an AMG, a 911 or a Corvette but you might as well get the sports car so you can enjoy the car while trying to pick up on "the ladies." ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles fieldysnuts8 http://www.porscheboost.com/showthread.php?40023-Great-article-about-sports-cars-and-quot-the-ladies-quot Meticulous/Perfect STi Conversion FS - WOW http://www.porscheboost.com/showthread.php?39965-Meticulous-Perfect-STi-Conversion-FS-WOW&goto=newpost Thu, 23 May 2013 13:14:44 GMT This thing is ridiculous - and worth every penny. I would buy it right this second if I needed a second car: ... This thing is ridiculous - and worth every penny. I would buy it right this second if I needed a second car:

http://www.502streetscene.net/forum/...d.php?t=212187 ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles inlineS54B32 http://www.porscheboost.com/showthread.php?39965-Meticulous-Perfect-STi-Conversion-FS-WOW In need of a video for an argument. How if two cars are very close how a 200lbs passenger will effect the car so a video where the camera guys switches cars an http://www.porscheboost.com/showthread.php?39855-In-need-of-a-video-for-an-argument-How-if-two-cars-are-very-close-how-a-200lbs-passenger-will-effect-the-car-so-a-video-where-the-camera-guys-switches-cars-an&goto=newpost Tue, 21 May 2013 00:43:31 GMT And the results vary And the results vary ]]> General Automotive - Comparisons, Motorsports, Tuning, Car Talk, and Motorcycles 600whp S4 http://www.porscheboost.com/showthread.php?39855-In-need-of-a-video-for-an-argument-How-if-two-cars-are-very-close-how-a-200lbs-passenger-will-effect-the-car-so-a-video-where-the-camera-guys-switches-cars-an