an estimate of power

[poshatch]

so im gonna have my new n/a set up for good engine responce, the application is drifting so i want to know generally how torque the car will be putting down with my set up, 5 speed manual with a j30 rear end 1991 ka24de

parts:

injen short ram intake (installed)obx headers (4-2-1 2.5" outlet) (installed)3" test pipe (waiting on modification)3" straight pipe to 4.5" muffler (waiting on modification)egr bypass (done)a/c delete(done)clutch fan delete (done)11lb light weight flywheel (en route)heavier duty than stock duty pressure plate and clutch (en route)car runs great and was thinking about geting an ignition timing of 15* btdc (needed)

ive read in a mag a stock engine with just the intake and ignition timing put down 136 hp and 143 torque to the wheels on just those two mods

i guested my set up to put me at roughly 160 hp (+24 hp from above example) and 170 lbs (+28 lbs from above example) to the wheels

oppinions?

[-RJ-]

hmm id say maybe 150whp

[poshatch]

that does seem more reasonable than 160, sad how all the rest of those mods only equate to an extra 14 hp haha

im more concerned with torque though

if you say 150 whp then guessing 160 wtq haha still i think i can suck it up and deal with that

[-RJ-]

that sounds about right i suppose

if you get bigger injectors and a bigger maf with a tune, you could probably push 165 whp

[Ajax]

that does seem more reasonable than 160, sad how all the rest of those mods only equate to an extra 14 hp haha

im more concerned with torque though

if you say 150 whp then guessing 160 wtq haha still i think i can suck it up and deal with that

Mods don't just add up. I'd guess that 150whp would be absolute peak unless your engine runs very strong. Torque won't be much higher.

[poshatch]

Mods don't just add up. I'd guess that 150whp would be absolute peak unless your engine runs very strong. Torque won't be much higher.

its oh so saddddd how you can put that much into it and gain almost nothing

its all good though im not really tripping off the power, its my learning set up, if i got responce and enough to maintain my car then im happy hahah

all the items are paid for and on or in the mail so im gonna rock what i have for this year and peicing together a mild turbo set up on the side haha

it peaked my curiousity is all

[angrypenguin182]

an addition to injectors/maf/tune, you could get another s13 exhaust cam, or some s14's, depending on which ones you use, will change where your power will lie ( low end, mid range, topend

[Ajax]

Better to have power under the curve than a big spike.upgrade cams FTW ^^^.

[poshatch]

Better to have power under the curve than a big spike.upgrade cams FTW ^^^.

my current power band is ok where it is right now i shifted it up a little bit which was needed cause it just sucked in the higher rpms

my focus right now is having the HR that i need with adiquate torque to keep a drift

it seems to do that ok....not the best but enough for now i suppose i should learn on the set up i have...im starting to slowly peice together a turbo kit for the ka haha so running fun boost

once i build enough skill as a driver that is

[Ajax]

Okay, so I'm not really into drifting- I've got respect for the car-control skills, but not really my thing.Question- would you want a light flywheel? It seems to me that unless you're pushing plenty of power that you might want to have the extra force from a heavier rotating mass. But like I said, drifting is not something I'm really familiar with.

[ss82480]

Well to give you a little help here. I had the above mods + an underdrive pulley and bc stage 2 cams. Put about 160whp and tq, with 180ish psi compression. You will be disappointed, boost it!

[poshatch]

Well to give you a little help here. I had the above mods + an underdrive pulley and bc stage 2 cams. Put about 160whp and tq, with 180ish psi compression. You will be disappointed, boost it!

something like this is exactly what iwas looking for, yea im going the route of boost

already got the t25 and ready to rebuild it so by the time it comes to install everything will function good

Okay, so I'm not really into drifting- I've got respect for the car-control skills, but not really my thing.Question- would you want a light flywheel? It seems to me that unless you're pushing plenty of power that you might want to have the extra force from a heavier rotating mass. But like I said, drifting is not something I'm really familiar with.

yes you are right...having a heavy stock flywheel is good for initiating a drift cause the more rotating mass brings more "upset" to the rear end

a lightend flywheel would yes be harder to initiate but the trade off is you have more responce to maintain a drift

to compensate for the trade off a better pressure plate and clutch combo grabs harder and forces harder to create that same "upset" with the added benifit of having better responce

edit: and that only has to do with clutch kick and shift lock initiation drifts

there are various other techniques such as feint and e brake that the flywheel being heavier or lighter has nothing to do with the actual initiation

[liquid_cool]

its oh so saddddd how you can put that much into it and gain almost nothing

its all good though im not really tripping off the power, its my learning set up, if i got responce and enough to maintain my car then im happy hahah

all the items are paid for and on or in the mail so im gonna rock what i have for this year and peicing together a mild turbo set up on the side haha

it peaked my curiousity is all

you forgetting a few nessesitys for a great NA build...

#1. high comp pistons and decent rods....pistons for obvious reasons and rods as part of the stregth build for clutch kiking with lighter driveline and flywheel set up..

#2. lightwieght driveline to compliment that flywheel...best bang for the drifting buck

#3. good cams....262's are excellent ..i like the BC cams myself...i allso sugest pairing the cams up with the duel spring set up so you can hang on the revlimiter without fear of floating a valve into the piston...

when drifting...your not nessesarly building just for horsepower...its mainly for durability..the intence forces generated on a drive train/motor are amazingly powerfull..even greater than a normal racing platform ..and with the ka's half balanced crank..those forces are even greater....it may take longer to build it bro...but building for the long tearm in this sport is worth the extra effort...good luck..what ever you decide.