***K24Z1 project teaser***

**EUR003act** · 18-02-2009 07:57 PM

Originally Posted by Min988

Nice e-manage, When my euro grows up it wants to be just like yours. In Justin we trust.

hahahaha thanks buddy!

you coming on the batemans bay cruise?

**EUR003act** · 21-02-2009 09:45 AM

UPDATE:

Im thinking about installing a PNN4 transmission out of a 2007+ Civic Si into my car, it comes stock with 1.5 way LSD, and 4.7 Final drive... Not to mention the fact its got alot shorter 2nd gear, to fix up that massive acceleration gap the AUDM CL9 suffers from.

I also did some rough calculations on the top speeds in each gear between the K24A3 transmission, and the K20Z3 transmission...

K24A3 - - - - - K20Z3
---------------------
59km/hr - 1st - 54km/hr
104km/hr - 2nd - 83km/hr
142km/hr - 3rd - 116km/hr
187km/hr - 4th - 154km/hr
233km/hr - 5th - 192km/hr
261km/hr - 6th - 269km/hr

**integral90** · 21-02-2009 09:50 AM

Originally Posted by EUR003act

UPDATE:

Im thinking about installing a PNN4 transmission out of a 2007+ Civic Si into my car, it comes stock with 1.5 way LSD, and 4.7 Final drive... Not to mention the fact its got alot shorter 2nd gear, to fix up that massive acceleration gap the AUDM CL9 suffers from.

I also did some rough calculations on the top speeds in each gear between the K24A3 transmission, and the K20Z3 transmission...

K24A3 - - - - - K20Z3
---------------------
59km/hr - 1st - 54km/hr
104km/hr - 2nd - 83km/hr
142km/hr - 3rd - 116km/hr
187km/hr - 4th - 154km/hr
233km/hr - 5th - 192km/hr
261km/hr - 6th - 269km/hr

Awesome! Finally someone is gonna fix that sorry excuse for a 2nd gear the Euro has. I was always complaining about it, but now with RBC it's 10x worse - traumatising even. How much can you pick them up for man? I'd be very interested. But also, doesn't the K20Z3 redline at 8000rpm stock? So all those top speeds you estimated be even lower because the K24 only revs to 7200rpm yeah?

Or maybe you've already taken that into account

**aaronng** · 21-02-2009 09:56 AM

Originally Posted by EUR003act

UPDATE:

Im thinking about installing a PNN4 transmission out of a 2007+ Civic Si into my car, it comes stock with 1.5 way LSD, and 4.7 Final drive... Not to mention the fact its got alot shorter 2nd gear, to fix up that massive acceleration gap the AUDM CL9 suffers from.

I also did some rough calculations on the top speeds in each gear between the K24A3 transmission, and the K20Z3 transmission...

K24A3 - - - - - K20Z3
---------------------
59km/hr - 1st - 54km/hr
104km/hr - 2nd - 83km/hr
142km/hr - 3rd - 116km/hr
187km/hr - 4th - 154km/hr
233km/hr - 5th - 192km/hr
261km/hr - 6th - 269km/hr

Check if the Si's transmission case lines up with the passenger side engine mount. I've read in another thread that DC5 and Euro are different, and it should be the case for Si as well.

**EUR003act** · 21-02-2009 02:26 PM

Originally Posted by integral90

Awesome! Finally someone is gonna fix that sorry excuse for a 2nd gear the Euro has. I was always complaining about it, but now with RBC it's 10x worse - traumatising even. How much can you pick them up for man? I'd be very interested. But also, doesn't the K20Z3 redline at 8000rpm stock? So all those top speeds you estimated be even lower because the K24 only revs to 7200rpm yeah?

Or maybe you've already taken that into account

those top speeds are all calculated on my 225/45/18s at 7400rpm rev limit (stock)

yeah the stock 2nd is shithouse... unless you smash 1st all the way to redline, it takes way to long to get her revving again... and if your taking a corner about 50-60km/hr in 2nd, omg talk about slow acceleration after it!

ill send you a PM on price... lets just say 70kg overseas shipping is nearly more than the whole tranny!

Originally Posted by aaronng

Check if the Si's transmission case lines up with the passenger side engine mount. I've read in another thread that DC5 and Euro are different, and it should be the case for Si as well.

i spoke to a guy in US who has one in his TSX... worst case senario ill swap the gears into my K24 tranny case, or custom fabricate a mount...

the only issue i was concerned was with the shifter cables matching up, ive heard guys swapping them into rsx/integras not being able to shift into 3rd properly... but the tsx guy said his matches fine

**TODA AU** · 22-02-2009 01:10 PM

Originally Posted by EUR003act

worst case senario ill swap the gears into my K24 tranny case

I think this is the way you're going to go...
You'll have no problem, you've proved to be pretty handy with the spanners so far...

**integral90** · 22-02-2009 03:24 PM

Should be interesting to see how much quicker it will make the 1/4 quicker as you'll have to make another shift vs. the K24a3 box but the ratios will be much better suited to the power. Please do a before and after 1/4 run!!!

**tony1234** · 22-02-2009 03:54 PM

Originally Posted by TODA AU

I think this is the way you're going to go...
You'll have no problem, you've proved to be pretty handy with the spanners so far...

Is the gear swap really worth it?I don't find 2nd gear too bad,particularly after fitting the Comptech headers.What would be the approx.cost of getting this done Adrian?

**integral90** · 22-02-2009 04:01 PM

Originally Posted by tony1234

Is the gear swap really worth it?I don't find 2nd gear too bad,particularly after fitting the Comptech headers.What would be the approx.cost of getting this done Adrian?

Remember Justin has the RBC which shifts the power up a bit. 2nd is just bareable with the stock torque curve but it's terrible with the RBC, it bogs so hard into the gear and it's an awkward wait for it to get back up to around 5500rpm

**EUR003act** · 22-02-2009 05:03 PM

Originally Posted by TODA AU

I think this is the way you're going to go...
You'll have no problem, you've proved to be pretty handy with the spanners so far...

lol thanks buddy... yeah talking to a few people looks like a my need to do this... might even be something i come up to sydney and get you to do for me

Originally Posted by tony1234

Is the gear swap really worth it?I don't find 2nd gear too bad,particularly after fitting the Comptech headers.What would be the approx.cost of getting this done Adrian?

on the track, taking a sharp corner at about 40-50km/hr your going to be in second, it takes way to long to then jump up to 100km/hr for your shift into 3rd...

i was originally just going to buy the 4.7FD and LSD... but it was pretty much the same price for the entire transmission as for just those two parts

a little more labour involved, but im going to do lightweight fly and clutch at the same time, probably main rear seal aswell

**TODA AU** · 22-02-2009 06:46 PM

Originally Posted by tony1234

Is the gear swap really worth it?I don't find 2nd gear too bad,particularly after fitting the Comptech headers.What would be the approx.cost of getting this done Adrian?

It'll certainly be quicker,
But at the expense of fuel economy in the lower gears.
If it's a track car or used on the drag strip, it'd probably pay off with quicker times.
For a roadie, it'd likley see you get a ticket sooner rather than later cause you'll want to rev it. LOL
PM me for a price, I'll annoy too many people if I open quote in threads.

**integral90** · 22-02-2009 07:08 PM

Originally Posted by TODA AU

It'll certainly be quicker,
But at the expense of fuel economy in the lower gears.
If it's a track car or used on the drag strip, it'd probably pay off with quicker times.
For a roadie, it'd likley see you get a ticket sooner rather than later cause you'll want to rev it. LOL
PM me for a price, I'll annoy too many people if I open quote in threads.

Could you send me a PM in regard to which other gearboxes would fit/you'd recommend for a CL9?