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WE'RE BEING CALLED OUT LEFT AND RIGHT THIS MONTH! FIRST, ON SOME DISCREPANCY REGARDING "FACT OR FICTION", THEN BECAUSE WE APPARENTLY DON'T KNOW THE DIFFERENCE BETWEEN AN S-CHASSIS AND AN S 30, AND FINALLY BECAUSE SOME PEOPLE STILL FEEL THAT TUNING A CAR IS A BAD IDEA. SO HARSH, WE RESORT TO PWN-ING A GREEN AUTOMOTIVE PLAY ON WORDS JUST TO FEEL BETTER.
NICE ARTICLE, BUT...
To start, I love this magazine. I was reading the August '10 issue and came across the Fact or Fiction article where you reported that you can expect up to a 10.1-percent power/torque loss from having your A/C and stereo turned all the way up. I have to strongly disagree. Why would a car with more power lose more from the same modification than one with less power? Shouldn't the same A/C system take away the same amount of power from every engine? If you lost 11.5 hp in a 120hp 2.5i, shouldn't you also lose 11.5 hp in your 450hp 370Z example, not the 50 you projected? -Brendan Metz
Thanks for reading, Brandon. The first thing to remember about changing rotational mass is that resultant losses or gains occur as a percentage of the total amount produced—just the same as how drivetrains absorb a percentage of total power output by an engine (i.e. about 18 percent for a FWD vehicle, 22 percent for RWD due the added mass of a driveshaft, etc.). Shaving the same amount of weight off two different cars by, say, reducing the weights of their flywheels by the same amount will indeed improve power and torque by different amounts, but the same percentage. And so it goes with increasing parasitic loss with electric and A/C draw, all things being equal.
NICE ARTICLE, BUT.
Hello Import Tuner! I read your magazine regularly (as often as we can get it in the Middle East, at least), and I just caught the article of the Common Snapper 240Z (October '10). Awesome find! I own one myself—as well as a Z32— and it's nice to see some old-school love every once in a while. One point, though: the "Behind the Build" section states that the car has USDM 240SX fenders. It definitely has USDM fenders, but from a 240Z, not a 240SX. But you knew that already, I'm sure ;-) Keep up the good work! -DC2 Murphy
NICE ARTICLE, BUT.
Just got finished with your October issue—love those Supras! I am a bit concerned about how the parts and dyno tests were done in Power Pages on the '10 EVO. First, you bolt on the HKS exhaust system and get a legit 20.8hp gain, which is awesome. Next is the DC sports intake, which appearsto gain 30.8 hp, but in fact, you turned up the boost to 26 psi and altered the fuel and ignition maps. I would say that most of the gain here was from the added boost and tuning, not the part being tested. Hardly a fair test. The final test was the DC Sports hard pipe kit, which, again, you added and then tuned to get a 6.3hp gain. I realize that tuning is a vital part of any build, but the real issue is that you show giant 30.8hp gains right beside the picture of the product, but the actual power gains were from adding boost and tuning. I guess DC Sports will be getting some 'I thought your intake made 30 hp on an EVO, and I only got 4 hp' phone calls from people who don't read the notes of your testing.
-Paul Durkin Via importtuner.com
We're sure this is a common concern among our readers, Paul, so thanks for writing in. The fact is that you answered the issue yourself—tuning is a vital part of upgrading today's newer platforms, so much so that we can't recommend upgrading many new vehicles without it. Tuning generally isn't needed with the addition of exhaust modification in turbo applications, but as for the point of raising boost at the intake stage, 26psi of boost was the "comfortable" setting our tuner recommended with the improvements in flow presented by the DC Sports intake. The alternative would've been for us to post minimal gains at each step (or possible losses—common in newer applications without tuning) and simply speculate how much power could be produced with tuning, but we felt it best our readers know how to maximize their gains.
NICE CAR, BUT.
We're looking to have our '92 Nissan Skyline GT-R put in your magazine with a full article with multiple pictures. We are in the process of collecting sponsorship in order to go to world-class shows such as SEMA and NOPI. We have attached some pictures to get a better idea of what the car looks like. This car was appraised at $160,000 and has numerous customizations and was rebuilt from the ground up.
Thank you for your time and consideration. -Erin and Trevor Via [email protected]
The engine mods appear to be sick. .. but the rest just makes us sick. We see where you're going with the whole "Godzilla" thing; we just wish you wouldn't go there. Why couldn't you have done this with a Civic?
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