Best mod to date! - Tuner-Junction

88 rex · #1 (**permalink**) July 24th, 2006, 08:02 PM

I have a new favorite mod!!!

JDM 4.785 final drive!

That's all I have to say for now, going to shower now(long day under the car)and go for another spin!!!!!

triniskill · #2 (**permalink**) July 25th, 2006, 12:01 AM

get some vids up..

jadkar · #3 (**permalink**) July 25th, 2006, 12:02 AM

WTF!!! no updates just some BS bragging

I ordered my parts today but I'm interested in hearing how your's ran

88 rex · #4 (**permalink**) July 25th, 2006, 06:52 AM

Quote:

Originally Posted by triniskill

get some vids up..

All I have for video is my little camera and that isn't all that great. But YOU have seen this FD in action before

Quote:

Originally Posted by jadkar

WTF!!! no updates just some BS bragging

I ordered my parts today but I'm interested in hearing how your's ran

It ran great! I was a little nervous about starting it up and in my head I went over bolt I touched just to be sure I had put everything back together correctly AND torqued everything down. It took me a little longer than I had hoped to put back together but I kept taking brakes and hit a few minor hiccups.

NAPA had the pilot bearing I needed too so that was great because they are 5 minutes up the road.

I'm definitely happy with the 4.7 and think a 4.9 would be a little much for me. Especially on the highway. At 80 in 5th gear I am in the 4600-4700 range, which is still managable, but I will most likely cruise at 70. The acceleration is great, even when not down shifting. I can't prove it and it's probably in my head, but I'd swear the car has a different "tune" to it now. Sounds just a little different, a little deeper........but that has to be some kind of pseudo euphoria from finishing this project (like getting new shoes and thinking you can touch the moon when you jump)

Everything runs smooth, and I don't have any noise issues. I can now just let my car idle in gear without hearing that darn clicking/thumping.

MUCH APPRECIATE IT JOHN!!!!!! I hope the 4.4 serves you well and gives you the gears you've been looking for.

triniskill · #5 (**permalink**) July 25th, 2006, 10:24 AM

[QUOTE=88 rex]All I have for video is my little camera and that isn't all that great. But YOU have seen this FD in action before

yes I have...

A_White_Gs-R · #6 (**permalink**) July 25th, 2006, 10:56 AM

you lucked out there buddy.

88 rex · #7 (**permalink**) July 25th, 2006, 05:20 PM

Quote:

Originally Posted by A_White_Gs-R

you lucked out there buddy.

I am just very fortunate and very appreciative that we were able to do this.

I think this should put John at a much more tolerable RPM with a little more room to play with. The difference is more noticable then I had expected, and although I was overly joyed with the 4.4 with my stock motor, I love the motor even more with the 4.7. I can see how having 270ish hp with 180-190ish ft/lb of torque would be unpleasent, especially on a daily basis. When I saw John take of in 2nd I was amazed at how useless his 1st gear really was. Now knowing that there was 4.7 in that tranny I think the 4.05 would have really hurt him by making the gears far too long, especially on the road course where this car is suppose to be.

I think we both improved our cars potential with the swap

Blake · #8 (**permalink**) July 25th, 2006, 05:48 PM

i cant wait to get a new final drive. My tranny build will consist of:

Quaife LSD, MFactory 4.62FD, Gearspeed Carbon Synchos

jadkar · #9 (**permalink**) July 25th, 2006, 05:52 PM

Parts will be in Thursday. With any luck I may have the car back together for the river run this Saturday. I spoke with my buddy Larry and he said he has had the same "exploding bearing" mistake that I have done. Very stupid of me, I was way too tired and should have stopped what I was doing much earlier. Now I have to take everything back apart and make another trip to Warwick

I was going to bring it to a local shop but Larry said he wouldn't trust any local machine shop with an Acura counter-shaft.

I hope I'm as happy as you are with the gears.....I think I will be. I'm already excited that the charger will be able to make use of it's torque and pull me through 2nd and 3rd more efficiently eventually then giving me a higher trap speed. I'm guessing (and hoping) to break the 110mph mark. With the 4.785 I was bouncing off the rev limiter at 108mph in 4th for about the last 70 feet of the track.

Hopefully with the 4.440, the GSR intake, and some drag radials I'll be in the 12s

The 4.440 will also make the straights at the Glenn much faster

Will.....I'm currently looking for a track buddy for my class at the Glen on September 4th-5th. Space is limited!!!! do it!!!! Trackmasters is the best school by far and I know a bunch of the instructors!!! You'll have a blast!! Karen and I are going up Friday the 1st to hang out, maybe you and the wife want to go up as well. We can all chill and then during the track sessions the two women can go shopping

I'm gonna make a post about this.

88 rex · #10 (**permalink**) July 25th, 2006, 05:52 PM

Quote:

Originally Posted by Blake

i cant wait to get a new final drive. My tranny build will consist of:

Quaife LSD, MFactory 4.62FD, Gearspeed Carbon Synchos

Now that sounds like fun!

Blake · #11 (**permalink**) July 25th, 2006, 05:56 PM

indeed it does.

stock FD is 4.21 i believe. So it would be really nice. Especially with LSD.

apexinghonda · #12 (**permalink**) July 27th, 2006, 12:23 AM

WELCOME TO THE 4.785 CLUB. I have the USDM close ratio R tranny with the JDM 4.785 FD in the Rex and I love it. Yep 4700 rpms is about 78-80 in my car (I have no speedo and go off of rpms and gears). That final drive really wakes up the car. And you don't have to worry about cruising the interstate at illegal high speeds because you would be in vtec the whole time!! LOL.

Barry H.

jadkar · #13 (**permalink**) July 31st, 2006, 12:57 AM

All I have to say is .....

4.40 baby!!!!!!!

Damn it makes a HUGE difference, my car has some nice long legs now

Man 3rd gear makes that supercharger howl!!! 4th is definitely good for like 120ish and with the GSR 5th gear 70mph leaves me at about 3600rpm nice for those long drives to the Glen

I had one quick stoplight stint and the car definitely feels better. 1st gear still lights up but I can hang onto it longer and 2nd gear is all pull now, no more spinning. Car definitely feels quicker!! I can't wait to get my drag radials and get to the track

Thanks Will!!

BTW..I never want to pull the trans again!!!

charliemopps24 · #14 (**permalink**) July 31st, 2006, 01:10 AM

That's great john. It seems this gear swap worked out well for all involved.

88 rex · #15 (**permalink**) July 31st, 2006, 05:07 PM

Quote:

Originally Posted by jadkar

Thanks Will!!

BTW..I never want to pull the trans again!!!

With a Spoon LSD you'll NEED to at some point........mwhahahaha.

Glad it's working out for you though! Now we need to get to the track and get some times.

Hopefully, next time you need to pull that thing out I can give you a hand.

jadkar · #16 (**permalink**) July 31st, 2006, 05:31 PM

^^^

Update...RIO died this morning

More details to follow (no it wasn't an accident)