godfather2

judging from my quasi-contact at honda R&D, our tranny will not hold up to too much power. for my own reasons (and per my mechanic's recommendations) i wouldn't want to go over 250whp/230tq

PrecyseStylez

?? 250WHP isnt worth all the hassle of gettting this turbo kit to work.. why not just supercharge it and call it a day! The torque looks good to have but only 250hp is weak.. atleast something in the 300 range.. ATLEAST!

stillhere153

iTrader: (1)

yea i would not advise an auto to go turbo... even s/c is too much for auto honestly

as for manual... boy oh boy, 1st to 4th from a civic si... or hell even an ep3 tranny with upgraded synchro's and its good up to 400 and change lbs tq

tsxdriver

i can understand the turbo, but my daily driver tsx is an auto and it's supercharged and so far i've had no problems with the trans at all.

tdottsx

why is that?

PrecyseStylez

the torque converter..

stillhere153

iTrader: (1)

^ correct, torque converter lockup...

as for s/c auto... you should be good for a long time...

I mean if you are under 300hp, the auto trans should holdup

gonna whore my build... it's started... $300 spent so far


pics of custom cf gauge pod soon

tsxdriver

how much power do you think the auto trans could hold up safely?

PrecyseStylez

A few ways to find out.. either try to make as much power with a turbo as you can or you can probably check out the RSX forums to see how those guys auto trannys held up. I dont know if the 2 trans are the same.. but you can check it that way.

rex.

here's a little info taken from the level 10 website..

A Torque Converter is a fluid-filled case that contains a set of turbines - there is an input turbine that is driven by the engine, an output turbine that connected to the transmission's input shaft, and a stator turbine between them that directs and controls the flow of the fluid.

At a certain input RPM, the torque converter will reach its maximum fluid flow. Below this input RPM, there is poor hydraulic "coupling" between the input turbine and the output turbine - there is a lot of "slippage". Above this input RPM there is a hydraulic "lockup" - there is almost no slippage between the input turbine and the output turbine.

This certain input RPM is called the "stall speed" of the converter. This property of a torque converter allows an engine to rev-up to a speed where it begins to make significant power (commonly referred to as "torque multiplication") before being put under a heavy load. The stall speed of a torque converter needs to be carefully matched to the torque curve of the engine it will be used with. A high-performance or race engine, which makes power only at high RPM, needs a torque converter that has a very high stall speed.

You cannot check the stall speed of a torque converter by pulling the transmission into gear, holding a vehicle with the brakes and adding power -- the drive-wheels will begin to spin long before you reach full-power. The proper way to check the stall speed is to make a standing-start, abrupt, foot-to-the-floor acceleration run and note the RPM shown on the tach at the instant the vehicle begins to move. This test actually measures "flash stall", but this is usually very close to the true stall speed of the converter. Also, this test is only valid if the tires do not begin to spin and if the engine can develop sufficient torque to actually reach the rated stall speed. If the tires spin, the apparent stall speed will be high. If the engine does not develop sufficient torque for the converter, the apparent stall speed will be low.

rex.

With all that said, you can always upgrade/service the torque converter...

tsxdriver

i wanna hit 280 whp with the daily.

rex.

My goal is for atleast 280 wtq

AtlTSX90

any clips yet?

valeratj

who said autos barely hold SC's ? I know a number of people with supercharged auto TSX's and their trannies hold up just fine after years of rough driving.

PrecyseStylez

Do you really?.. Not that many are on here.. so must be your around the way friends huh?

valeratj

Well, ken536 (or is he kenny 536?) is here for sure. I talked to him about how auto transmissions hold the SC's power and he told me that he has been running his SC for a while now and it works just fine. I have not yet heard of any AT failures related to SC. maybe you can tell me about 1 ?

PrecyseStylez

No one with an auto is pushing 300whp.. some aren't even hitting 250whp..

valeratj

yes, he is not pushing 300 HP, but u never mentioned 300HP. u just mentioned that autos can barely survive with superchargers and CT superchargers come with 5 PSI, then u can modify them

godfather2

stillhere, did you find a car yet?

stillhere153

iTrader: (1)

I SAID 300 HP...

and godfather, nope still lookin

and precise is right... easy to tell, headover to the rsx forums see if any auto guys are running over 300hp with the original trans... which I DOUBT 100%

ps. good luck finding a shop to modify the torque converter... only mod I can think of is modify the stall or watever its called but then it will take more throttle to get the car rolling


edit: read what rex pasted... auto's need a higher stall speed...

valeratj

oh, I didnt read the whole thing from the very beginning, but now I see it. Anyways, I never argued about AT's being able to hold 300 HP so no need to get all jerky about it, please.

DAYTA

That's an EXTREMELY lofty goal for an AT (almost doubling stock power). You'd undoubtedly have to do a full custom rebuild of your transmission to handle that much torque...

stillhere153

iTrader: (1)

sorry bout getting all defensive lol

lcrazyaznl

iTrader: (1)

I've been in cccolticehockey sc tsx. Its running fine, really sounds nice with the j-racing exhaust.

godfather2

all this talk about auto trannys, but i believe the op is shoot for a 6spd, correct?

stillhere153

iTrader: (1)

yea I will def be buying a 6speed... can't have 2 cars, so I will be getting a tsx in a few weeks... no rush tho... gonna keep buying parts slowly

might buy the turbo next month

ssmtl2nv

iTrader: (2)

Im holding up.........

PrecyseStylez

Your not auto are you?..

eMiNeNt

base auto with 280tq, guys name is aftershock141 on .com. can't find a link to his video but if you search you can find his build thread

eMiNeNt

club rsx that is...

valeratj

This raises some hopes for possible turbocharging TSX's with AT's

eMiNeNt

valeratj

X 2


Has anybody had a failure yet? RSX's AT's ?

stillhere153

iTrader: (1)

I should also note this "auto tranny failure" theory is all speculation...

I am currently in the market for a low mile Manual TSX, o4 to o6... Black interior w/ nav is preffered

If any of you guys know anyone selling one please have em pm me

stillhere153

iTrader: (1)

I should also note this "auto tranny failure" theory is all speculation...

I am currently in the market for a low mile Manual TSX, o4 to o6... Black interior w/ nav is preffered

If any of you guys know anyone selling one please have em pm me

Audioserf

I recommend going 06 if at all possible. It'll cost a bit more but you have 15 more hp right out of the box.

godfather2

true, but if he's going to upgrade the cat/exhaust anyway, it won't be that big of a deal. he'll only be down a slightly smaller diameter throttle body, fogs, mem seats, and blue tooth

i'm assuming here that if the op pursues this project, he'll upgrade all those bits anyway

valeratj

^ 15 HP? where did that come from? I thought it was 5

godfather2

^ it is approx. 15 whp. remember they standardized whp/tq gathering methods