dinan 4.10 diff

[BaLLzZz]

I just spent two hours reading MANY threads on this forum and others with detailed statistics on FD ratio changing.

PLEASE CORRECT ME IF IM WRONG!!!

If I am looking for a 1/4 mile increased time USUALLY with just a 3.62 vs 3.15 or 3.45 I SHOULD get there quicker(all variables being perfect)

I will not gain any power!!!!!!!

It will defiantly FEEL faster and in the dct sense the changing of gears is not as much as a disadvantage as say a MT

Bottom line here is I plan to do a full exhaust from the headers back, A pulley/software, Lighter 18` wheels, intake for the heck of it, and a 3.62 diff

I am a city driver very often but I do like to open my car up on the freeway.

I will have some friends who would like to run it obviously not on the street. But we usually get to speed 150 160 + easily

IN MY CASE ONLY****

I am under the impression I can benefit from that diff

If I am getting 14%+/- more tq BUT need to shift more because I am spending less time in each gear AND less distance traveled in each gear WITH a dct I don't really see where I can possibly lose compared to the stock 3.15

PLEASE I urge you to enlighten me if you have concrete evidence or feeling towards MY case

Thank You

[jeff@autocouture]

well as far as this thread it was basically not to get it, i did put the order in but if i change my mind by today then ill cancel it which i doubt will happen anyway, i cant understand how so many people say the diff will not add any performance when ive seen so many other people do it back when i had my e46 and they love it?

[swamp2]

Originally Posted by BaLLzZz

PLEASE CORRECT ME IF IM WRONG!!!

If I am looking for a 1/4 mile increased time USUALLY with just a 3.62 vs 3.15 or 3.45 I SHOULD get there quicker(all variables being perfect)

You might gain 0.1 seconds max from a 3.62 in the 1/4. Is that worth it? Your decision.

Originally Posted by BaLLzZz

I will not gain any power!!!!!!!

Of course not. That is the key point.

Originally Posted by BaLLzZz

It will defiantly FEEL faster and in the dct sense the changing of gears is not as much as a disadvantage as say a MT

A FD mod can make a MT or DCT feel faster. It is not so much the shift time that is important but the time spent in each gear.

Originally Posted by BaLLzZz

Bottom line here is I plan to do a full exhaust from the headers back, A pulley/software, Lighter 18` wheels, intake for the heck of it, and a 3.62 diff

What you do with other mods is 100% unrelated to the FD mod.

Originally Posted by BaLLzZz

If I am getting 14%+/- more tq BUT need to shift more because I am spending less time in each gear AND less distance traveled in each gear WITH a dct I don't really see where I can possibly lose compared to the stock 3.15

You just stated yourself why there is a gain and a loss. If you never shifted gears and never got to maximum speed in each gear a FD mod is a not brainer but how ridiculous is that? Keep in mind that your cars acceleration is about 50% lower in 2nd than in 1st. That is a much larger effect than 14% even if it is only for a short period of time (the extra time a lower FD will be in 1st compared to the higher FD).

Do not that for some metrics like 60-130 you could gain a few tenths from this mod. But a few tenths out of 10+ seconds not off a 0-60 time or a metric like that.

I can't be more clear or more thorough.