anybody here put a usdm 4th and 5th on a jdm 98 tranny? how was it compared to stock jdm 98 setup?

 

there's a thread about this yesterday. please scroll the page.

https://honda-tech.com/zerothread/1730550

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gogogomoveit &raquo;</TD></TR><TR><TD CLASS="quote">there's a thread about this yesterday. please scroll the page.

https://honda-tech.com/zerothread/1730550</TD></TR></TABLE>

Whadaya know... It's his

 

i was asking about doing it

now im asking whos done it?

 

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

Whadaya know... It's his </TD></TR></TABLE>

Oops. yeh I am bored at wrok

to OP, no I havent done it. Sorry.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by type B16 &raquo;</TD></TR><TR><TD CLASS="quote">i was asking about doing it

now im asking whos done it?</TD></TR></TABLE>

Why do you care who has done it? It is possible to swap the gears, and that's all that matters right? There's no trick to it.

The gearing would be exactly the same as a 98 Spec FD in a USDM ITR/96 Spec trans, which is a very common setup.

 

damn i totally forgot about the 4.7 usdm itr tranny

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by type B16 &raquo;</TD></TR><TR><TD CLASS="quote">damn i totally forgot about the 4.7 usdm itr tranny</TD></TR></TABLE>

No, all USDM ITR's have the 4.4 FD, only the JDM 98+ have the 4.7 FD.

 

i mean putting the 4.7fd on a usdm tranny

i wonder why honda made the 98jdm 4th and 5th longer... its making my 4th feel sluggish

 

Yes, you can put the 4.7 JDM FD, 4.9 ATS FD or 5.0 (IIRC) Cusco FD.

 

ATS 4.9 FD + USDM ITR Gearing =

 

im thinking of doin MFactory 3-5 gears and 4.9 final drive, how streetable do you guys thing this would be, top speed would be around 118. what rpm would i be at doing 80? ballpark is fine. thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TypeRPaul &raquo;</TD></TR><TR><TD CLASS="quote">im thinking of doin MFactory 3-5 gears and 4.9 final drive, how streetable do you guys thing this would be, top speed would be around 118. what rpm would i be at doing 80? ballpark is fine. thanks</TD></TR></TABLE>

if 118 is the top speed 80 mph is going to be hell. With my JDM FD 80 was like 5k and I could hit like 140 still.

If your top speed is 118 I would imagine you would be around 6.5K rpm at 80

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TypeRPaul &raquo;</TD></TR><TR><TD CLASS="quote">im thinking of doin MFactory 3-5 gears and 4.9 final drive, how streetable do you guys thing this would be, top speed would be around 118. what rpm would i be at doing 80? ballpark is fine. thanks</TD></TR></TABLE>


I'm thinking of doing the same thing.....

be forewarned, however: a 4.4 or 4.7 final drive would go better with the mfactory gears.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by type B16 &raquo;</TD></TR><TR><TD CLASS="quote">i mean putting the 4.7fd on a usdm tranny

i wonder why honda made the 98jdm 4th and 5th longer... its making my 4th feel sluggish</TD></TR></TABLE>

Better gearing for Tsukuba.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by totsie7944 &raquo;</TD></TR><TR><TD CLASS="quote">

if 118 is the top speed 80 mph is going to be hell. With my JDM FD 80 was like 5k and I could hit like 140 still.

If your top speed is 118 I would imagine you would be around 6.5K rpm at 80</TD></TR></TABLE>

Reason I'm considering going this low is because I only see the freeway once a week, and only for 3 more months (then im gradumacated) I only currently work 10 minutes from home. I like to drag race (track only) and am looking to get into auto x. If I do get into hpdes what top speed do you guys generally see?

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


I'm thinking of doing the same thing.....

be forewarned, however: a 4.4 or 4.7 final drive would go better with the mfactory gears.....</TD></TR></TABLE>

Why is that?

 

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

Reason I'm considering going this low is because I only see the freeway once a week, and only for 3 more months (then im gradumacated) I only currently work 10 minutes from home. I like to drag race (track only) and am looking to get into auto x. If I do get into hpdes what top speed do you guys generally see?

Why is that?</TD></TR></TABLE>


I posted in haste earlier... like I said, I'm almost finished and will give you some driving impressions... but riding at 5800 rpm at 80mph will kind of suck for commuting.. heh

If you have the ***** (and I hope you do), then go for it!

https://honda-tech.com/zerothread?id=1597005

 

Close gearset and stock FD would work nice if you drive it everyday.

Whenever Spring decides to roll around next year I'll be running the MFactory close gear set and SRR 4.71 FD in my D16. (1.000 5th is the same as B series 5th for a gearset).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TypeRPaul &raquo;</TD></TR><TR><TD CLASS="quote">im thinking of doin MFactory 3-5 gears and 4.9 final drive, how streetable do you guys thing this would be, top speed would be around 118. what rpm would i be at doing 80? ballpark is fine. thanks</TD></TR></TABLE>

you'd be better off with a 4.266 LS final with the mfactory gears IMO.

i dunno why you guys are posting all these tranny questions in the ITR forum.

 

6 speed k series with a 5.2 final!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad &raquo;</TD></TR><TR><TD CLASS="quote">6 speed k series with a 5.2 final!</TD></TR></TABLE>

what's 5th end at, i am too lazy to do the math

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad &raquo;</TD></TR><TR><TD CLASS="quote">6 speed k series with a 5.2 final!</TD></TR></TABLE>


that is actually much more ideal and livable... but the problem is the $$$ of the motor that must be mated to it.....

 

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


that is actually much more ideal and livable... but the problem is the $$$ of the motor that must be mated to it..... </TD></TR></TABLE>

it would be cheaper to just let the engine sit at high rpms while cruising and rebuild it more often, and pay the extra gas lost than to swap in a K

it's not like the factory itr gearing is very mild. ****, it's like 4450 @ 80 already.

 

To the question of top speed on track at HPDEs, it's higher than 118 for sure. At Summit Point, relatively stock ITRs (stock tranny, maybe 4.9FD) regularly hit ~125mph. I hit over 120mph easy with a B20 and GSR tranny, and I'm getting rolled on the straights by R's. At longer tracks like VIR, the speeds would obviously be higher.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad &raquo;</TD></TR><TR><TD CLASS="quote">6 speed k series with a 5.2 final!</TD></TR></TABLE>
Ahh. There's that extra oomph everybody says you have.

I have a Type S with 4.8 mated to my K motor. It's OK...but not awesome.