singh

iTrader: (2)

+1

Cux350z

iTrader: (162)

lols at solo........

Solo, i pose a question or two to you:

If i throw a 1000kg flywheel on my motor........what will my 1/4 mile time?
If i throw a 500kg 50 inch diameter crank pulley on my motor, what will my dyno show as a result?
If i throw some 22" wheels that weigh 50lb a piece with some wide tires that weigh 25lb a piece, what will happen to my 60ft, and ET?



now answer this.........WHY!!!!!!!!!!!!!!!?


























A: Becuase you added weight/load to the drivetrain........guess whats true if you take all those parts off...................the opposite happens. The result may be minute and not show up in the 1/4 time when going from a 27lb flywheel to a 14lb flywheel, but i guarantee that you reduced engine load and will see a greater WHP.

SOLO-350Z

iTrader: (26)

Do the research and you will see from 100s of dynos and track times that a flywheel or a pulley does not gain anything in the 1/4 or on the DYNO. You haven't proved me wrong yet.

Again, NO DYNOS have shown gains with these mods. NONE! It is pretty sad you know nothing about cars.

Dr. Venture

iTrader: (19)

what kind of dyno will see a lightened flywheel as a gain? when on the dyno your not pulling any weight...+ you have to add yourself in the car as extra and w/e things like boom boxes and what not you have as well in the mix.

quicker rpm response maybe, but thats for the streets.

lighter flywheel will reduce weight to the vehicle's pull of itself hence making the engine work a little less harder when running creating that faster response time and pull.

Cux350z

iTrader: (162)

ROFL, just ignore the physics of it then. Physics are a lie!!!!!

A small gain is still a gain, even if the dyno doesnt pick it up. Do you not agree that a 75lb wheel/tire combo would slow your Z down?

Dr. Venture

iTrader: (19)

just got my volks in....i can finger lift them. compared to stock i drop a nut or 2 when taken them off and on...

power to weight ratio does matter!!

Cux350z

iTrader: (162)

lol, the gains from REDUCED rotational force are better then the pure weight saved of the flywheel.

Solo, why is there a market for lightened drivetrain components? People that give up on driveability and longetivity do it for the _ _ _ _ _ ?

SOLO-350Z

iTrader: (26)

Facts are facts.

http://g35driver.com/forums/reviews/...ht-pulley.html

NO GAIN.

Small gain is a gain when the dyno doesn't pick it up?!?! What gain is there then?! NONE!

And if there are any gains, 1-3 hp that can happen on any dyno with different conditions from run to run.

Wheels and Tires are a bit different of a change compared to a flywheel/pulley. They aren't attached to the engine.

SOLO-350Z

iTrader: (26)

PS, still waiting for you to prove me wrong. Post up some facts which you have yet to do.

SOLO-350Z

iTrader: (26)

There is a market for everything, doesn't mean items actually work. Just like the Cyclone or whatever that stupid thing that goes in the intake to spiral the air. That doesn't work, but people buy it.

A flywheel/pulley is a good upgrade, not one you need to expect to gain any hp or 1/4 times with though.

Until I see proof, and haven't over the past 5 years being on these forums, testing products for vendors & NSM, or g35driver that these mods actually help they are a waste of money.

Cux350z

iTrader: (162)

BWAAAAAAAAAAAAAAAAAAAAAAA HA HA HA HA HA

Whats that mechanical linkage thing called again? O yeah, a transmission. The wheels are definitely a part of the drivetrain, which includes the motor.


Im sorry solo, i refuse to argue with you anymore, the wall in my living room is putting up a better argument then you (no offense).

Physics >> you

SOLO-350Z

iTrader: (26)

You make the decision.

The Facts

1) The stock crank pulley is two piece unit with a sandwiched elastomer ring.

2) The elastomer ring serves as a damper for certain order crank vibrations that occur during various rpms under load.

3) The clutch assembly or torque converter serves as the damper on the other end of the crank.

4) The VQ series is very beefy with 4 bolt mains and a crank girdle which makes the entire motor, including the crank, very strong.

5) Removing the dampening capability pulley can cause vibrations across the crank. These vibrations can then impact the valve timing and ultimately power.

6) No one has yet so show proof on the strip that the VQ35 pulley works.

7) Do not trust engineering speak from the billet pulley manufacturers because they claim the OEM is not a damper. This is completely wrong.

8) No VQs have been destroyed by a UDP/lightened pulley assuming the pulley was manufactured correctly with a steel key.

9) The VQ is internally balanced just like any motor built after the 1980s. The concern is what the engine, specifically the crank, does when explosions hit the pistons. These explosions place tremendous forces on the pistons, rods, and then the crank. As the explosions increase, rpms increase. As the rpms increase, certain order vibrations occur across the crank. To quell these vibrations, engineers use dampened crank pulleys as well as the cluth/TC on the other end. The term "internally balanced" is a moot point. Be VERY cautious when a manufacturer or vendor tells you "oh, the engine is internally balanced, it doesn't need dampers on the crank". This is not true and completely questions their true automotive knowledge.

10) Underdriving a crank pulley will result is very minimal gains, if any. The biggest accessory drain on the engine is the water pump and that is driven by the timing chain. The AC is the second biggest source of drain and that pulley is free wheeling when the compressor isn't engaged. The alternator can cause significant drain, but the pulley is already very small.

SOLO-350Z

iTrader: (26)

Are you some 5 year old? They aren't DIRECTLY attached to the engine. Pulleys and Flywheels are. The wheels/Tires will make a more noticeable difference because it's on the drivetrain itself and way way more rotational mass because of their size. You are a idiot.

So, since I have owned you with proof that you are wrong, when are you going to try and prove me wrong? You haven't done so yet.

Facts > you.

Kushtech

iTrader: (3)

1/4 mile times for stock down to the tire seem a little close for all years, looks like 07 is a tad faster then the 03 and 04s but i still see 03 and 04s higher on the list then some 06+

looks like its all about the track temps and driver skill to me..

i think i see an 03 auto beating some manual 07s

https://my350z.com/forum/drag/233840...ons-stock.html

Cux350z

iTrader: (162)

they are coupled to the motor whether you like it or not. Draw the FBD of all the systems in the drivetrain. Youll be able to write a function that will relate the tq output of the motor and tq output at the wheels.

Know why whp and crank hp are different? Because of the load induced on the motor.

SOLO-350Z

iTrader: (26)

The only 03-04s you see are heavily modded ones, not stocks. All the 07s times are stock.

SOLO-350Z

iTrader: (26)

Still waiting for you to prove me wrong with facts...instead, you resort to this? Wow, why would anyone do business with a person like you. Go back to detailing and stay out of engineering.

konaforever

If you take the averages of the group, which is more meaningful than any one time or outlier, then the 07's+ are probably around .3 seconds faster in the 1/4 mile, which makes sense given the HP advantage they have. Also look at the trap MPH's. There are no 03's-06's trapping in the 104 range or above.

Cux350z

iTrader: (162)

Why wouldn't anyone want do business with a knowledgeable person?

Arent you like a computer programmer or something?

z-u-later

iTrader: (43)

I don't have to refute anything, especially coming from you, a forum lurker & d1ckhead. Me, a ricer? Nothing can be farther from the truth. But I still stand by my statement . . . you have not refuted my statement about you being a crooked Vegas cop, have you?