Safest way to get 15%-20% more NA HP and torque vs. stock

[7thgear]

Originally Posted by reeves

What's the difference between doing this and simply driving with your tranny in a lower gear? Like driving in 5th gear instead of 6th on the highway? I'm asking seriously.. isn't this pretty much what a higher final drive does?

Don’t confuse your gearbox ratios with the “final drive”

The gearbox (which is a device that amplifies the engine’s power/torque) has ratios that determine the spacing between each gear

While the final drive (along with wheel diameter) determines the wheel speed across all the gearbox gears

The final drive is the final gear for each the gearbox gears, the final multiplier.


You are partially right though, driving IN 6th gear will FEEL like you’re driving in 5th, but that’s about it.

The net result will be lower top speeds for each gear but faster acceleration because your engine’s power is being amplified at a greater rate

[CSI:86]

Originally Posted by 7thgear

Don’t confuse your gearbox ratios with the “final drive”

The gearbox (which is a device that amplifies the engine’s power/torque) has ratios that determine the spacing between each gear

While the final drive (along with wheel diameter) determines the wheel speed across all the gearbox gears

The final drive is the final gear for each the gearbox gears, the final multiplier.


You are partially right though, driving IN 6th gear will FEEL like you’re driving in 5th, but that’s about it.

The net result will be lower top speeds for each gear but faster acceleration because your engine’s power is being amplified at a greater rate

A final drive gives no additional actual power to the engine, it only makes the maximum engine power come earlier, rather than later.

[7thgear]

Originally Posted by CSI:86

A final drive gives no additional actual power to the engine, it only makes the maximum engine power come earlier, rather than later.

and where did i say that it gives additional power? Did the word amplify confuse you?

the transmissions converts engine revs into torque at either a fast rate or a low rate, the gears and final drive dictate these rates.

[CSI:86]

Originally Posted by 7thgear

and where did i say that it gives additional power? Did the word amplify confuse you?

the transmissions converts engine revs into torque at either a fast rate or a low rate, the gears and final drive dictate these rates.

The OP CLEARLY states in the title of the thread: "Safest way to get 15%-20% more NA HP and torque vs. stock". Did that confuse you?

Learn to read, before posting.

[7thgear]

Originally Posted by CSI:86

The OP CLEARLY states in the title of the thread: "Safest way to get 15%-20% more NA HP and torque vs. stock". Did that confuse you?

Learn to read, before posting.

the thread went into a discussion of final drivers and gear changes

learn to read the whole thread before posting

and learn to use a comma

[wootwoot]

Please play nice

[StormTrooper]

The gearing in this car at least for the manual is pretty short and close ratio. lighter wheels if you want to spend money. but the best option for a dd is exhaust a tune.

[JackSmiley]

Originally Posted by post_break

Borla header, stock overpipe, test pipe, ISIS exhaust, visconti tune, stock intake I made just shy of 180whp based on Phastek's dynojet.

I figure with an intake, overpipe, and updated tune I could touch 190 on the same dyno.

How'd you get rid of the CEL when you installed the BORLA header? Did you tune it or did you do the defouler?

[Obja]

Originally Posted by troek

no ones hit 200 whp na statside yet? bummer man. plenty of 215ish whp tunes over here in japan.

lucky bastards <3