Well this is the last piece I need to put my cars new heart in and well I cant seem to find anyplace that has the JDM 4.785 in stock they are all out and I need one asap (hint hint if anybody has one in stock or knows how does IM please ) Well I was wondering if the ratios are realy that muck different between the ATS 4.9 vs the JDM 4.78? I will be installing a GSR 5th in as well to get the RPM's down in 5th on the freeway. I do 90% of my driving on there and dont want ot be in Vtec all day. So are there any extra maintence that you have to preform on the ATS vs the JDM or are they both like oem just change tranny fluid and what not. SO post up what you like or dislike about the 2 and if one is better than other.What are the mph shiftpoints (EX) us ITR 4.4o FD end of 1st is 40 give a few and second ends at 62mph

Just need some imput ASAP because need one buy first week in JULY

Thanks
CHRIS


[Modified by underrated99si, 6:32 AM 6/25/2002]


[Modified by underrated99si, 6:33 AM 6/25/2002]

 

Get the ATS you won't be dissapointed. FWIW I don't have the gsr 5th and cruising on the freeway is fine. At 5000 rpms I cruise at 80 mph. I just drove 5000 kms in a row with ATS+stock 5th. I think the GSR 5th only drops 300-500 rpms, not worth the money IMO.

 

 

how about jdm final 4.785 and ls 5th gear?

 

What about maintence with the ATS is there any extra or just plug and play?

 

inlinefour.com has the JDM FD instock. i think. dont know if they are any good but just saying.

 

Don't go with the GSR 5th...you'll be sorry.

ATS 0wnz...

 

I loved my ATS but since I need a new tranny, I'm gonna have a JDM cause I ordered the spoon tranny, I will write a comparision soon

 

Where did this "Extra Maintenance with the ATS FD" rumor start? I've never heard such things. I just run Honda Manual Tranny fluid and I guess I'll just change it every 15-30K or whenever I feel like it.

Why is that? I have the GS-R .787 5th and it's great IMO.

As I stated in another ATS thread, a better gear combo I thought of would be this:

USDM ITR 1-3 gears
USDM GS-R 4th and 5th gears
ATS 4.929FD

Why the GS-R 4th and 5th?

Because the JDM 4.78-equipped ITR tranny has the same gearing. This way you keep the lower cruising RPMs yet you have no slightly longer gap from the 4th-5th gear change if you track the car on a road course. I would think that the 3-4 gear change would not have a much larger gap since Honda of Japan felt that this was the gearset to go with in their "flagship" FF car, the '98 Spec ITR.

I have the ATS 4.929 in my USDM ITR tranny with the .787 GS-R 5th gear and I like it just fine. The RPM drop from 4th-5th gear is slightly bigger than the shitfs into other gears, but it's nothing that is alarming.

The only downside I can *think* of would be the following:

You're racing all-out on the freeway (!!!) with some pals and when shifting from 4th-5th there's a *slight* lag until the RPMs climb a bit more.

You're on a full road course and the slightly longer gap prevents you from redlining in 5th gear because of the slightly larger gap from 4th-5th.

Considering those 2 maybe the ITR .848 5th gear is your choice if you do a lot of the 2 above, but for me I do enough freeway driving and possibly road trips to warrant the lower 5th gear cruising that the .787 GS-R 5th offers.

Just my 2 cents.

 

Perhaps I should rephrase...

Don't go with the GSR 5th if you do a lot of road racing...you'll be sorry.

There ya go

Jason-
who is a track wh0re

 

Well I went back and did a search on my original impressions of my ATS and here it is:


https://honda-tech.com/zerothread?id=90310

Please disregard any of the "RPMs drop less when upshifting" crap I was saying. While it gave me the illusion that the RPMs were landing higher in each gear than with the 4.400, it's mathematically impossible to do so.

I suppose that wheelspin or the fact that I was touching the other side of 8600rpm or so more frequently had me confused on the whole "RPMs land higher in the next gear" stuff.

I thought it was a good thread and it explains the whole misconception (that I had too) about how people think that the ATS and JDM 4.78 final drive keep the RPMs higher between shift - they do NOT.

Enjoy that thread.

 

GSR 5th is for fucktards.

D

 

I just don't have the subtlety that you have, Matt. Sorry

LOL...

 

...And cutting hole in perfectly good ITR rear seats is definately the brightest thing to do!




[Modified by B18C5-EH2, 7:39 AM 6/25/2002]

 

yup... for a change USDM gets the best (closely spaced gear ratios...) tranny except for the final drive.
Install the ATS and leave it as is.
Enjoy

Will

 

ATS 4.949 FD OWN'S!!!

GSR 5th is for pansies.


The ATS FD is by far my favorite mod to date. Here is a link to Yasu's site: http://www.a-t-s-usa.com/ Call him, let him know WE sent Ya!

BTW, this has Also been covered a Whole Bunch of times before, maybe 10 times in the last 6 months alone. Please SEARCH on this one.
Oh, did I say; It F'in ROCK'S!!!

Good luck,

A.

 

Here's a post I wrote about my install and a review and thoughts...

https://honda-tech.com/zerothread?id=138623

A.

 

I barely notice a difference with the 4.78 & stock.

 

D's right. There is absolutly no reason to have a GSR 5th with the 4.78.

 

.....what D, Jason, Anton, and Will said.

 

4.9 ATS with stock usdm itr gearing

 

so, 4.929 + Stock 1-5 = Not a Fucktard

Whew, good thing that's what i got It ownz.

heh...fucktard.

 

Has anybody taken their R with the final drive down the the tack and done the 1/4?
Were there noticable differences?

 

.2-.5 faster than stock... depending on wheel/ tire/ suspension combo and conditions.....

 

That's the theory - but I do not think I have seen a single post showing a true back-to-back comparision that showed an improvement in 1/4 mile times with either the JDM or ATS final drive. Any comparisons that I have seen have been in conjunction with a bunch of other modifications, which make any conclusions unreliab;e.