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ATS Final Drive vs. JDM Final Drive

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Old Oct 10, 2001 | 07:52 AM
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Default ATS Final Drive vs. JDM Final Drive

I know, some of you will say do a search, but I was just wondering if there were any new thoughts on this. If I am not mistaken, isn't the JDM FD almost half the cost of the ATS? Pros - Cons for each? This would be for road racing applications.

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Old Oct 10, 2001 | 08:01 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (White Dragon)

A little o/t but I just spent the weekend at Grattan and have had plenty of time at Gingerman this year (first year with JDM FD in car) and the gearing is just great for both tracks. I refer to them because I think I remember you had driven @ Gingerman? I did not install the GSR 5th gear. I went with the stock ITR 1-5 and JDM FD to prevent the drop in rpms between 4-5 on the track. I don't know any thing about the ATS fd but the JDM can be had for about $450ish.

Mattj
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Old Oct 10, 2001 | 08:05 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (Dropspeed)

It's quite a noticable difference actually. Just think about it. 4.4-4.785 is a different of 0.385. Difference between 4.785 and 4.929 is 0.144 which granted not as big a difference as the JDM versus a stock is still sizable. Team up the ATS 1-2 gear kit with the 4.929 and a GSR 5th and it will be a killer tranny.
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Old Oct 10, 2001 | 08:22 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (God)

Team up the ATS 1-2 gear kit with the 4.929 and a GSR 5th and it will be a killer tranny.
But, decide if you can live with it on the street as a DD. The JDM does not push beyond the limits of streetability. Anyone here actually LIVE with the ATS on a daily basis?
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Old Oct 10, 2001 | 08:37 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (Dropspeed)

A little o/t but I just spent the weekend at Grattan and have had plenty of time at Gingerman this year (first year with JDM FD in car) and the gearing is just great for both tracks. I refer to them because I think I remember you had driven @ Gingerman? I did not install the GSR 5th gear. I went with the stock ITR 1-5 and JDM FD to prevent the drop in rpms between 4-5 on the track. I don't know any thing about the ATS fd but the JDM can be had for about $450ish.

Mattj
You are right, I have driven at Gingerman. The last time I was up there, I actually drove an R with the JDM gearing. I just don't know if I can justify the additional costs with going with the ATS, so I am trying to get people's feedback.
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Old Oct 10, 2001 | 08:38 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (FAST4DR)

Their's that Toda Sponsored ITR with ATS Gearing on his car. Check out their site http://www.Todaracing.com under project cars.
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Old Oct 10, 2001 | 09:03 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (White Dragon)

isn't the JDM FD almost half the cost of the ATS? Pros - Cons for each?
i was talking to wantingatyper about this the other day. he's cheap (just kidding bro), so he is going to get the JDM 4.78 instead of the A.T.S. 4.93. the 4.78 is 8% lower than the stock 4.40 wheras the A.T.S. is 12% lower than stock, but makes a big difference. how often do you hit 8400 in 5th? chances are not often, but with the A.T.S. final it will enable you to get to your top speed faster, although it will be a slightly lower top speed (12% if you retain stock 1-5th) personally, i just swapped out my 4.78 for a 4.93 and it was totally worth it. get up and goes much faster. also, maybe i am a masochist or something, but i don't see that much difference on the highway. stock, in 5th@80mph my car revved 4,500 rpm. with the A.T.S. it revs almost 5,000. big f'in deal...just back off the gas a little. the only bad/good thing is the 4.93 is helical cut, and gives a slight wine. i kinda like it, people have asked me if it was supercharged.. regarding price, the jdm is almost half of the A.T.S. the jdm gear can be had for $475 with bearing, distance collar, and new 1st gear. the A.T.S. final is $850, plus the bearing, distance collar, and new first gear, which is about $80 or so. it's up to you, but for my money i would get the A.T.S. you are going through the trouble of removing your stock final for a performance one, right? JMHO
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Old Oct 10, 2001 | 09:11 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (rodney)

rodney : Do you have the ATS first gear? What are the (dis)advantages to it? Also, I wasn't aware that the JDM fd came with a 1st gear.
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Old Oct 10, 2001 | 09:27 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (White Dragon)

slightly OT, but related at the same time...

has anyone tried the complete Sp00n close gear set?
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Old Oct 10, 2001 | 09:39 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (yoshi234)

i read something somewhere
about a 5.0 FD.. by cusco?
any experiences with that?

nice avatar yoshi..

edit/:there is a t in something


[Modified by theFungusAmongus, 6:46 PM 10/10/2001]
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Old Oct 10, 2001 | 10:02 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (yoshi234)

I apoligize for the question, but I don't quite understand the differences of gear ratios & final drive. Maybe someone can xplain to me what each thing does. I was told before that by changing the final drive it will increase revs at any given mph in all gears, whereas swapping different gear sets you can fine tune your transmission for different race tracks. I seem to understand the final drive, but can someone elaborate on the gear ratios please? What is the benefit of changing the gear rations?
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Old Oct 10, 2001 | 10:43 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (rodney)

isn't the JDM FD almost half the cost of the ATS? Pros - Cons for each?


i was talking to wantingatyper about this the other day. he's cheap (just kidding bro), so he is going to get the JDM 4.78 instead of the A.T.S. 4.93. the 4.78 is 8% lower than the stock 4.40 wheras the A.T.S. is 12% lower than stock, but makes a big difference. how often do you hit 8400 in 5th? chances are not often, but with the A.T.S. final it will enable you to get to your top speed faster, although it will be a slightly lower top speed (12% if you retain stock 1-5th) personally, i just swapped out my 4.78 for a 4.93 and it was totally worth it. get up and goes much faster. also, maybe i am a masochist or something, but i don't see that much difference on the highway. stock, in 5th@80mph my car revved 4,500 rpm. with the A.T.S. it revs almost 5,000. big f'in deal...just back off the gas a little. the only bad/good thing is the 4.93 is helical cut, and gives a slight wine. i kinda like it, people have asked me if it was supercharged.. regarding price, the jdm is almost half of the A.T.S. the jdm gear can be had for $475 with bearing, distance collar, and new 1st gear. the A.T.S. final is $850, plus the bearing, distance collar, and new first gear, which is about $80 or so. it's up to you, but for my money i would get the A.T.S. you are going through the trouble of removing your stock final for a performance one, right? JMHO
sorry if this is a dumb quest... but im not that knoledgeable when it comes to the gearing ratios and final drives... but whats the purpose of changing the 1st gear when putting in a JDM or ATS final drive? thanks
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Old Oct 10, 2001 | 11:11 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (PrjctDC2-R)

I used to use the Cusco 5.0. But then it broke apart. Then i changed to ATS 3-4-5 gear. And i'm happy with it now.

The first gear is a little different for the JDM and ATS. But is still from Honda. If you use Cusco 5.0, you don't need to change the 1st gear. You can use the one from USDM ITR or 96 Spec JDM ITR


[Modified by ITR111, 8:13 PM 10/10/2001]
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Old Oct 10, 2001 | 11:11 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (PrjctDC2-R)

sorry if this is a dumb quest... but im not that knoledgeable when it comes to the gearing ratios and final drives... but whats the purpose of changing the 1st gear when putting in a JDM or ATS final drive? thanks
The JDM and A.T.S. FD needs the JDM ITR 1st gear beacuse the hole in the center of the gear is larger and will fit over the counter shaft of the JDM type-R FD and the A.T.S. FD. The USDM 1st gear's hole is to small.

The cheap one---
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Old Oct 10, 2001 | 11:26 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (WantingaType-R)

wow, wanting i am impressed. you completed a sentence without my help.... wanting is correct. you need a new 1st gear, 1st gear bearing and distance collar, all factory jdm pieces. the jdm first gear has the same ratio as usdm, but as wanting said, the gear has a larger opening in the center to fit the oversized shaft of either the 4.78 or A.T.S. pinions. as far as the cusco not needing the jdm 1st, got me. i have no experience with cusco gears. anyone want to give to the wantingaA.T.S.finalgear fund?......
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Old Oct 10, 2001 | 11:29 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (WantingaType-R)

Thanks guys!.. so what if you change all your gears.. to the ATS ones, as well as a ATS final drive?.. would that be shitty for street/highway use?...(crappy cruising speed and Low top speed) ?
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Old Oct 10, 2001 | 11:35 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (PrjctDC2-R)

Thanks guys!.. so what if you change all your gears.. to the ATS ones, as well as a ATS final drive?.. would that be shitty for street/highway use?...(crappy cruising speed and Low top speed) ?
that would not be a great idea. besides being very expensive, you will have no top end. i guess it would be cool to start out in 5th though.......
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Old Oct 10, 2001 | 11:41 AM
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Default Re: ATS Final Drive vs. JDM Final Drive (rodney)

Here's my little take on the situation.

I have the JDM 4.785 and the bastard for some reason whines like crap too....

I personally love the way it drives around town though I'm not really a lazy shifter...I dun believe in bogging out my motor and stuff. Anyhow, if I could do it again I think I would try an ATS 4.9 with ATS 1-2 TALLER gears (do they have them?) so it doesn't rev out so quick.

3-4-5 is where your power gears are on the circuit anyway. But for the price difference of 475USD for the JDM FD....it is hard to beat in terms of perf/price.

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Old Oct 10, 2001 | 12:22 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (RagingAngel)

You know, I'm waiting for Chad to pipe in here as he has the ATS 4.929 and the ATS 1-2 gear set. 1st gear is different ratio than stock and not the same gear at all. It's taller and brings 1st and 2nd gears together very nicely while providing traction in 1st gear. I love it personally. I wonder what the 1-5 gearset feels like. It's definatly livable on an everyday basis.
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Old Oct 10, 2001 | 12:27 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (rodney)

the A.T.S. it revs almost 5,000. big f'in deal...just back off the gas a little. the only bad/good thing is the 4.93 is helical cut, and gives a slight wine. i kinda like it, people have asked me if it was supercharged.. regarding price, the jdm
ALL the gears are helical. That is done to keep noise down.
If it were straight cut then it would make noise.
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Old Oct 10, 2001 | 12:32 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (God)

You know, I'm waiting for Chad to pipe in here as he has the ATS 4.929 and the ATS 1-2 gear set. 1st gear is different ratio than stock and not the same gear at all. It's taller and brings 1st and 2nd gears together very nicely while providing traction in 1st gear. I love it personally. I wonder what the 1-5 gearset feels like. It's definatly livable on an everyday basis.
Is this set-up best for a road-course application? I take it the ATS 2nd gear is taller also?
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Old Oct 10, 2001 | 12:56 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (BLITZ)

your assumptions on the final ratio is correct, i.e. it afects all the gears ratios. As for the individual gearing made specifically for types of races, this is helpful after each shift how much the jump in RPM, so a very tight geard ratio between two gears can drop 1000 rpm vs. 500rpm with an aftermarket gearset. The gear ratios used generally compliments the powerband of the motor, etc.


Greg
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Old Oct 10, 2001 | 01:36 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (sgT)

ALL the gears are helical. That is done to keep noise down.
If it were straight cut then it would make noise.
Exactly....!
Straight teeth gears are LOUD and absolutely not livable on the street. Lots of modded cars in the Hot Version video have straight cut gears and you can hear it.

For those who have problem understanding gear/final drive ratio, try mess it around on Playstation. It is pretty accurate. (runs out of rev when speed is still building up, 1st-2nd gear overlapping, etc.)
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Old Oct 10, 2001 | 04:25 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (Wai)

my 4.93 whines, but it's not unbearable. sometimes i barely even notice it. also, i never noticed a whine with my 4.78. i thought helical cuts were when the gear meshes at angle, and straight cut was, er...well straight? below is a pic of my gear.



[Modified by rodney, 8:28 PM 10/10/2001]
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Old Oct 10, 2001 | 05:09 PM
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Default Re: ATS Final Drive vs. JDM Final Drive (rodney)

after reading this.. i decided to go pop in Tokyo Xtreme Racer 2 (i dont have GT3 ) and put in the ATS gear ratios (or as close to spec as i could) on my ITR which were.. 1st(2.929), 2nd(2.105), 3rd(1.652), 4th(1.308), and 5th(1.033).. and tried both, 4.785 and 4.929 Final Drives... with the 4.785 FD, the car topped out at 121mph, and with the 4.929 FD it topped out at 117mph.. Does that sound realistic?

btw.. wont changing the 5th gear to a GSR or LS be shitty on the track?.. will the RPMs drop below the powerband?
Does anyone know the ratio for a GSR or LS 5th gear?


[Modified by PrjctDC2-R, 6:10 PM 10/10/2001]
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