TheShodan

iTrader: (14)

we don't really "build" transmissions for any of these transmissions for B, K, L or any of these platforms., other than clutches that can take the additional torque. Even the current record holder for an SI at over 500whp is using a stock transmission, just an upgraded clutch.

Apakaleky

than what is the quality difference from the LX 6spd to the SI 6spd?

on a scale of 1-10

TheShodan

iTrader: (14)

One has the OEM LSD, the other doesn't.

Hehe. there's is no quality difference scale, here, any friend

bluebluemike

Any word on this? I too want to reach high numbers while NA. Preferably using a nitrous setup and e85. I have a takeda intake, Ktuner, active exhaust, and rv6 catless dp. It's nice to see another k20c2 owner with some passion and ambition...

JRCivic1

The OP hasn't updated this thread in 22 months... what do you think the outcome was ?

Does anyone think that it is a coincidence that limited HP gains have been extracted from all NA single outlet exhaust cylinder heads since they have been implemented by Honda ?

maktooperfect

give me an update. Did u go on with the transmission swap if you did it and it was successful I'm ready to do it right now too

JRCivic1

... and now we are at 35 months without a response from the OP...

Apakaleky

Sorry for the time since last update, things went on hold for a bit due to having a baby girl. I finally broke 2nd gear like many others, But I just bought a used trans from LKQ in preparation to see what gears can fit (1st-4th), diff and final gear) and how much machine work will be needed to fit the diff and if new axels or axel mount will be needed. Along with the trans I got an fx400 clutch from Clutch Masters, Whiteline front sway/rear sway bar, Eibach Rear brace, Whiteline Front and rear endlinks, Acuity bushings and short shifter, whiteline trans mount bushing, and whiteline anti lift front control arms. Also looking to do the clutch delay valve delete. I will keep you posted but I just found a guy that is willing to help me out with this build his name is WerksJDM out of New Port Richey FL he has an crz with a k24a2 supercharged with like 550 hp here is his Instagram https://www.instagram.com/werksjdm/. I am also looking to put in OMP seats with ballade sports harness bar. You all can keep updated on my instagram at https://www.instagram.com/poohbeark20/
My long term plan 2-4 years is see what can be done with this motor and if the head can be swapped if built parts can be added. WerksJDM says k20c2 will hold 12psi easy. If not many options for motor buildi may see about a k24 swap with a supercharger.in effort to achieve 350-420hp. However, a supercharger is a big part of either build. Barriers include Stand alone ecu 2-4k, fueling1-2k, motor mounts 400-750, and axels ????. Im sure there is more included but its a work in progress. Looking to spend around 7-13k with supercharger and trans build, but that is gonna take a couple years since i am spending about 5 grand to complete the stuff listed above and updated tune. I do have a family and a few other priorities. But I will be going to The FIrm in Stark, FL for a trackday, sometime in the start of the '23, when its a bit colder outside. Pics and vids to come for sure.