acceleration over power

[Cartoon]

Whats a good set up for acceleration???? on a B18c7
im not fussed about chasing power figures i jst want it to be quick, now i know some of that includes power gains but that is not my main goal.

thanks heap ppl

[wynode]

WEll to improve acceleration you mainly have flywheel, and gearbuox / Final drive updgrades.

[bennjamin]

weight reduction , lightweight flywheel , different final drive amoungst others all do not increase power at all , but more so increase response and acceleration.

[dc-r]

i dont know abt light flyweel, cause havent try yet.but i agree with weight reduction. atm im doing weight reduction...
so far i done light wheels, sparco bucket seat(both side), took out allmost
everything behind front seat, also took off carpet as well.
expecting 50kg loss.. hope... waiting for spoon bonnet... coming in november...i dont know how fast is my dc2r...
but i can tell, increased response and acceleration a lot.
because, friend of mine has eg with jdm itg type r engine.
i couldt catch up before but now i do...
makes me very happy. :thumbsup:




weight reduction , lightweight flywheel , different final drive amoungst others all do not increase power at all , but more so increase response and acceleration.

[bennyBear]

go aftermarket clutch as well, exedy or daikin great for snappy shifts, 4-2-1 headers, lower final drive gear, suspension plays an important role in launches also, but it depends on how far you want to go!

[Cartoon]

well i dun hvae much to spend, im getting a vtir with all R gear in it, its pritty much an R with a sunroof. I know the gear box n suspension is a good place to start along with I/H/E. how much of a difference is the final drive?????

[kousoku]

dc-r,
do you really think reducing the rolling weight of your dc2r will contribute that much to your accerlating performance?

perhaps it would contribute slightly to an increase in acceleration however, would not be worth the considerable effort.
Reducing the weight of rims however, is a good stratergy, for the same reason light weight flywheels will be highly effective in increasing acceleration. Even then it is not the decrease in weight of 4 kg (lighter flywheel) the increase in performance is through the effect of the decrease in momentum in your drive shaft.

But purly to reduce weight in the cabin would seem absurb, i'm sure if someone that was 10-15 kg lighter then me whilst driving my car on empty compared with me driving the car when the tank is full you would experience incredibly minimal differences in quater mile times.

[bennjamin]

Removing weight will make a difference in acceleration ( i know this from my own experiments - everything in my car realistically is removed) - but to be technical yes , removing weight from wheels +flywheel , and reducing drag (both air and ground resistance) are perhaps the ideals you should aim for.

But...each individual change makes little difference so this in itself is turnoff for most enthusiasts. Combined all together tho - especially in a race environment where every second counts - these things really matter :)

Just stick with smaller/lighter rims and save up for a lightweight flywheel and keep it easy :)


dc-r,
do you really think reducing the rolling weight of your dc2r will contribute that much to your accerlating performance?

perhaps it would contribute slightly to an increase in acceleration however, would not be worth the considerable effort.
Reducing the weight of rims however, is a good stratergy, for the same reason light weight flywheels will be highly effective in increasing acceleration. Even then it is not the decrease in weight of 4 kg (lighter flywheel) the increase in performance is through the effect of the decrease in momentum in your drive shaft.

But purly to reduce weight in the cabin would seem absurb, i'm sure if someone that was 10-15 kg lighter then me whilst driving my car on empty compared with me driving the car when the tank is full you would experience incredibly minimal differences in quater mile times.

[dc-r]

thanks for your tips guys..
now i know what to do next step.
but light flywheel, which brand you guys recomend? spoon? exidy? toda?
what abt cluch ? do i need to change my cluch at the same time ?

you guys are legend!!!

[ALLMTR996]

thanks for your tips guys..
now i know what to do next step.
but light flywheel, which brand you guys recomend? spoon? exidy? toda?
what abt cluch ? do i need to change my cluch at the same time ?

you guys are legend!!!
Just spend your money on a good quailty clutch and flywheel kit the new Toda one is very nice looking and from what I have heard they are cheaper than Excedy kits.
Good info so far guys :thumbsup: dont screw it up or you will get yelled at. :D
ALLMTR996

[Ferrari]

Also, rotation mass has a far greater impact on perfomance, in r/c cars there was a formula, that went for every 1 gram of rotation mass removed, it has the equivalent of 4 grams of chassis weight removed.

[spardikis]

in regards to this comment - yes i do. you dont go to the track or strip with your spare tire, jack and tools still in?? or a boot full of subs and amps do you? Oh what about a car load of people??

Its all about inertia my friend - inertia being the ability or force required to change a bodies state of motion. therfore we must conclude weight is directly proportional to acceleration!



dc-r,
do you really think reducing the rolling weight of your dc2r will contribute that much to your accerlating performance?

perhaps it would contribute slightly to an increase in acceleration however, would not be worth the considerable effort.
Reducing the weight of rims however, is a good stratergy, for the same reason light weight flywheels will be highly effective in increasing acceleration. Even then it is not the decrease in weight of 4 kg (lighter flywheel) the increase in performance is through the effect of the decrease in momentum in your drive shaft.

But purly to reduce weight in the cabin would seem absurb, i'm sure if someone that was 10-15 kg lighter then me whilst driving my car on empty compared with me driving the car when the tank is full you would experience incredibly minimal differences in quater mile times.

[quangsta]

dont forget that a mugen air intake system will also give u great response and accelleration....

[ProECU]

Correct.

For all you primary school kids, that have not yet done a year 10Physics subject... The equation is:

Force = Mass * Acceleration.

Hence, Acceleration is a inversely proportional to Mass.

This also holds true for rotational mass. however in this case, you want to remove mass further away from the centrepoint of the circular object.

In the case of a rim, or flywheel, remove mass at the circumference end rather than the centre for best results.
Also just as important, is the balance of the end result, because this is the world of rotational harmonics.


in regards to this comment - yes i do. you dont go to the track or strip with your spare tire, jack and tools still in?? or a boot full of subs and amps do you? Oh what about a car load of people??

Its all about inertia my friend - inertia being the ability or force required to change a bodies state of motion. therfore we must conclude weight is directly proportional to acceleration!

[b18cfreak]

lol yeah well my teg has no panels at all from the front seats back atm and it feels a little quicker (i had 2 subs, 2 amps, spare tire + tools and some other random crap in there before) i reckon i lost a good 100kg of weight from taking absolutely everything out, the only thing left behind the driver seat is the back seats and that's all..

[EK Civic R]

wow...
a lot of this stuff is getting real technical..

I drove dc-r's car before and after... there is definately a difference, not a huge difference, but you can sure feel it..

If nobody could tell then dc-r's spent a lot of $$$ for nothing...

I think he should go lightened fly wheel and maybe intake next...