just read the archives for 2 hours, my eyes hurt. there's a lot of info there, but what i'm looking for specifically is feedback from guys who have ACTUALLY upgraded from a jdm fd to an ats, not just theorized about it. most of the archived stuff concerns upgrading from the usdm to the ats. any feedback will help out a lot, thanks

 

What are you specifically looking for?

 

I'm looking for his old 4.7

 

should have been more specific, what i wanted to know was, does it make a big difference in acceleration over the jdm fd?

 

I hear (and yeah, I read you wanted actual people) that it's like going from the stock USDM FD to the JDM FD. It's comparable going from the JDM FD to the ATS FD.

Hope that makes sense.

 

basically, what Dave is saying is that your gonna is gonna run through gears like a bat outta hell and make it feel like you just gained 20whp

 

well i went from 4.4 to 4.9

and all i gotta say is it's quite annoying on highways.

and in city.. i can cruise around in 5th gear but i try not to if i can

i like my 1,2,3,4 but not 5th.. it feels like i need 7th gear

 

I have the 4.9 and i love it. Gears are short and it is probably the best mod i have ever done. Love it, and makes a n/a car feel how its supposed to.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by REDLINEtypeR &raquo;</TD></TR><TR><TD CLASS="quote">
I have the 4.9 and i love it. Gears are short and it is probably the best mod i have ever done. Love it, and makes a n/a car feel how its supposed to.</TD></TR></TABLE>

So does the 4.9 increase the "feel" of acceleration without actually accelerating faster? Does it give you that "blood rushing to the back of the head feeling" that an STi's gearing does? Does it change the way the car feels for the passanger as well? I'm trying to get an idea of this too.

 

Please let's keep his thread on topic - there are plenty of archived posts about the 4.9 itself and vs the 4.4. IIrc, rodney upgraded from 4.4 to 4.7 and then 4.7 to 4.9, so you could ask him.
Going from 4.7 to 4.9 isn't as much of a difference.....

Here's the pic in a thread I had a while back - showing the graphical analysis of the three drives:



https://honda-tech.com/zerothread?id=1852017

 

4.4 to 4.785 to 4.929

yeah. i guess the gap narrows a bit...

if you want to go higher than 4.7 have you thought about the cusco FD? i wonder if thats still in production.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr1244 &raquo;</TD></TR><TR><TD CLASS="quote">well i went from 4.4 to 4.9

and all i gotta say is it's quite annoying on highways.

and in city.. i can cruise around in 5th gear but i try not to if i can

i like my 1,2,3,4 but not 5th.. it feels like i need 7th gear </TD></TR></TABLE>

Could you not just swap out the 5th gear for something longer?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98 ITR &raquo;</TD></TR><TR><TD CLASS="quote">

Could you not just swap out the 5th gear for something longer? </TD></TR></TABLE>

If you use 5th from an LS tranny with the ATS, you basically end up with the same revs in 5th that you had with the stock gearing. Hell of a drop going from 4th to 5th though lol. I would at least use the GS-R 5th over the "R" 5th if it's ever going to see the highway.

 

i hope someone who has actually done this will chime in with some feedback, paging rodney! like blackr said, i'm also of the opinion that there won't be much difference going from the 4.7 to the 4.9, might be a waste of my hard earned money

 

I drove both, and in my opinion 4.785 is perfect.

Difference is much bigger in 4.4 to 4.785 than 4.785 to 4.9.

If you decide that you are selling your 4.785 I would be interested.

 

I have upgraded from a USDM ITR tranny to a JDM ITR tranny. All I have to say is the JDM tranny feels like dog crap. Wasnt worth it. So the JDM ITR tranny was sold and went back to my USDM ITR tranny. I added a GEAR-X final drive (4.9) immediately to my USDM ITR tranny, a world of difference it made. Yes, my car feels much better. The power is more usable now. I dont mind high revving highway speeds.

Gear-X &gt; ATS

GEAR-X information: https://honda-tech.com/zerothread?id=1733782

 

i've been looking at the gear-x too, seems to better than the mfactory fd, since it's made in germany. any problems with the gear-x fd, like tranny whine?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by an2ny888 &raquo;</TD></TR><TR><TD CLASS="quote">i've been looking at the gear-x too, seems to better than the mfactory fd, since it's made in germany. any problems with the gear-x fd, like tranny whine?</TD></TR></TABLE>

No whines. The car is driven hard too.

 

This may be a little off topic, but wasn't some company out there a few years ago making a 5.-something FD?

 

i think cusco used to make one. btw is that reon kaneda in your avatar?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by an2ny888 &raquo;</TD></TR><TR><TD CLASS="quote">btw is that reon kaneda in your avatar? </TD></TR></TABLE>

You better believe it. We're married too. She just doesn't know it yet. Who's in yours?

I did a little research and it appears that Cusco did infact make a 5.02 final drive gear. However, they were prone to breaking under hard launching and were discontinued for various reasons.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by an2ny888 &raquo;</TD></TR><TR><TD CLASS="quote">i hope someone who has actually done this will chime in with some feedback, paging rodney! like blackr said, i'm also of the opinion that there won't be much difference going from the 4.7 to the 4.9, might be a waste of my hard earned money</TD></TR></TABLE>

x2......I've never driven in a 4.9, BUT I'm lead to believe, based on various graphs, the difference b/w the 4.7 to 4.9 is not nearly as noticable as going from 4.4 to 4.7. That's also the feedback I received from members who have actually done the 4.4 to 4.7 to 4.9 when I was deciding what I wanted to do.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by migs &raquo;</TD></TR><TR><TD CLASS="quote">I have upgraded from a USDM ITR tranny to a JDM ITR tranny. All I have to say is the JDM tranny feels like dog crap. Wasnt worth it. So the JDM ITR tranny was sold and went back to my USDM ITR tranny. I added a GEAR-X final drive (4.9) immediately to my USDM ITR tranny, a world of difference it made. Yes, my car feels much better. The power is more usable now. I dont mind high revving highway speeds.

Gear-X &gt; ATS

GEAR-X information: https://honda-tech.com/zerothread?id=1733782</TD></TR></TABLE>

Excuse my curiosity, but why do you think the JDM ITR tranny is dog crap? The 1-3 would be the same as a USDM with a 4.7, and JDM 4 and 5 are longer (GSR gears), so there is a drop there. This thread is based around a USDM ITR tranny with a 4.7/4.9, which IMO is anything but dog crap.

ALSO, Gear-X, ATS, Mfactory, etc shouldn't really make a difference in driving feel. A 4.9 ratio is a 4.9 ratio. I don't care how you slice it. I think the production process is the only thing in question in varying companies. I've never heard a complaint about ATS. Your post seems more like a biased commercial.

&lt;---Not a fan of criticism without an explanation only to provide a similar alternative, but for a different company.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black R &raquo;</TD></TR><TR><TD CLASS="quote">
Going from 4.7 to 4.9 isn't as much of a difference.....

</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ninor &raquo;</TD></TR><TR><TD CLASS="quote">I drove both, and in my opinion 4.785 is perfect.

Difference is much bigger in 4.4 to 4.785 than 4.785 to 4.9.

If you decide that you are selling your 4.785 I would be interested.</TD></TR></TABLE>


100%

just look at the wheel torque graph. anyone that tells you "goin from a JDM (4.785) to ATS (4.929) is like goin from USDM (4.40) to JDM (4.785)." is an idiot

 

that's my wife, azumi kawashima haha
tnx guys for all the feedback , though i wish we could we could get some input from people who went from a 4.7 to the 4.9, without any other changes to the tranny

 

a while ago, i saw a thread on here and the ATS site saying that ATS made a limited production 5. something ratio FD for our tranny.