What are the exact differences and is it worth the extra $500 to buy the 98+ spec? So far I got the 98 is ported by machine and has a nicer 4-1 header, it seems the most major is gear ratios but in a side by side drag race both ran te exact same 1/4 mile. Which is better for daily driving and something that might eventually see some boost? Thanks

 

Do a search for this. Just to name a few, the 4-1 header, engine is machine polished and not by hand, different 4th and 5th gears and final drive. Watch the Type-R Legends DVD if you get the chance.

 

I agree with Tyrant, watch the first best motoring, you will enjoy it ;-) If you can buy a 98+ spec just do it, it's worth it.

 

My main concern is gear ratios. I dont want to get terrible gas mileage so which 5th gear is longer? Its so hard for me to figure it out with the final drives being different. I know I could always get a LS 5th or something and probally put it in there. Is the 98 that much better? a few other things I heard the 96-97 has 32mm axles and the 98+ has 36mm? any truth to that? and HP. I cant see the 98+ being the same HP with a better header and more precise porting. On the engine list I see 210HP but other places state 200HP. Which is it?

 

if your worried about gas mileage then u have never owned a honda. Y would u switch the FD out for a ls 5th? your wasting your time and money.. just leave it how honda made it.

 

have you ever owned a car? since when is the final drive and 5th gear the same thing? I have owned 2 Honda cars so far and even with low HP motors if you drive them hard at times your in the mid 20's and with a higher performance motor you dont get good gas mileage. High RPM for long periods of time = poor gas mileage.

 

You're putting way too much thought into this. The 98+ has a few small advantages. PERIOD.

- 4.785 FD
- 4-1 Tubular Header
- Intake cam is 3 degrees more aggressive

I don't think i am forgetting anything. If it helps you make a decision, i purchased a JDM ITR motor in 2003 that was a 96-97 spec before i fully understood the few changes made in the 98+ set ups. If i had to do it over again i would have definitely spent the extra money for the those changes.

I hope this helps. Should you have searched for this info it would have surely come up. Good Luck.

PS... if you want boost buy something other than an ITR motor. The JDM FD will not be efficient on a boost set-up anyhow. You would want a longer FD rather than a shorter FD with boost.

 

thanks for the info. Thats why i was wondering which to get for longer gearing. I want an ITR motor. It has many advantages over the GSR for the extra money. Just look at people buying R parts to upgrade their other B series motors and aftermarket companies producing replica's of the R parts. I understand there are even better parts but for the extra spent I think its worth it.

 

the main advantages of the 98+ are

1. it's newer
2. transmission is often better for autocross
3. the header

i have a 97 jdm itr on the stock jdm ecu, it gets 28-30mpg like clockwork

the worst part about the 98+ trans is 4th gear. they used the b16 1st through 3rd and gsr 4-5th. had they done the b16 1-4th it would work for both autocross and drag racing and still have a 5th that kept the rpms livable.

 

I wish I had a RPM/Speed chart or some numbers between the 2 transmissions. For example the 96/97 is at 3100rm at 60mph and the 98 is at 3400rpm or something like that and then up to 80mph because its usually not a regular cruising at 81+ so it wouldnt matter much past that. I just dont want the car to be 1 super loud when cruising the highway or highway speeds and getting poor gas mileage since its a daily driver.

 

I dont wanna make a new thread and get flame but how much torque does the JDM 98 and up have? I see that it comes with about 136 right? or am I wrong and its just the same as the 96-97 and USDM?

help! and thanks (sorry for hi jacking the thread a bit)

 

Correct me if i'm wrong here..

USDM ITR tranny and Civic Si 99-00 tranny have exactly the same gearing.. I'm not sure that the transmissions are built the same though.

JDM ITR 98+ has completely different gears, 1st through 5th. Or is it just a shorter final drive that tightens up each gear here?

Thanks,

Div

 

98+ JDM tranny has a longer 4th & 5th gear combined with a shorter final drive. This means your gear speed in 5th is about the same when compared to the 95-97 JDM/97+ USDM transmissions. No real difference in rpm in 5th gear. The main difference is your at a lower speed when shifting out of 1st-3rd. 4th gear is slightly lower as well due to the final drive.

They've run tests in Japan side by side of 96-97 vs 98+ cars. Stock for stock they still ran the same in the 1000m...

BTW: If you buy a 98+ swap, it will come with axles that won't fit any US hubs including US Type R (larger snout w/ more splines).

edit: I have a 96-97 JDM ITR swap in my 94 hatch. I still get about 34-36mpg average. Worst ever was 28mpg with a few passes at the drag strip. I run a Kenji chipped P05 w/ base-tune only. Still setup for closed loop running...

 

The tranny and header are the only noticable differances between the years.. you will never notice a difference in the machine ported vs hand porting.

 

you're normally around 3500rpm at 65mph or so on the b16 set

 

both vehicles in top gear is about 3400rpm. advantages from 98spec are better intake cam, same cam as ctr. shorter ratio 1-3 gears longer 4-5 gear. bigger swaybar . sitffer suspension. different rack ratios. 36mm cv nut. bigger brakes all around. 4-1 headers. bang for buck 98spec.

iv owned both hands down to 98spec

 

hmm so the 96-97 would be easier to swap because of the 32mm axles. But the 98+ seems like the better motor but ever so slightly. can the axles be swapped out to make it fit a USDM car? also you said 3400rpm, what MPH is that at? thats basically 4th gear on a D16Y8, maybe I should start driving around only shifting to 4th to see what the noise is like.

 

b series motor at 3400rpm is totally different to a dseries series at 3400rpm. bseries can withstand that rev all day long compared to d series. d series at 3400 si pretty much half rev limit so will be noiser for sure. axles from 96-97 itr can fit any usdm car. but 98 spec u need bigger 5stud conversion. all b series box are universal regardless of shaft used

 

yeah i didnt think of that. D16Y8 is like 7200RPM redline and the B18CR is 8400RPM. Why do I need to do a 5 lug conversion? I thought you could swap like half shafts or something so its 32MM on the outside rather than 36MM so a 5 lug conversion would not be nessecary?

 

to run 98spec shaft you have to convet to 5lug as u mention. but like u said if ur planning to run only the 32mm cv you can use it on any hub instead of hub conversion

 

Sorry to nit-pick, but the 1-3 are the same gears (rpm drop in 1-3 is the same). Only difference is the final drive which makes the speed for each shift lower. This means you could view the 98+ trans in one of two ways:

- Shorter 1st thru 3rd w/ same 4th & 5th
or
- Same 1st thru 3rd w/ longer 4th & 5th and a shorter Final drive

The later is more accurate, but 1st way would make more sense to someone who didn't understand gearboxes...

I say go with the 96-97 swap. This saves money cause it cost less and you don't have to buy different axles (or a 5-lug swap). With the money you save, you could afford a decent replica header which will more than make up for the CTR intake cam...

BTW: Didn't I mention that the 96-97 wasn't any slower than the 98 spec when tested?

 

I think the peak torque is like 1000RPM lower on the 98+ spec though? I watched the video of both tested and the 98+ was faster until 3rd gear and the 97 pulled up right next to it because the gearing was longer. They stayed even and ran the exact same time. Is there a final HP and torque numbers for the 2? The engine list say 210HP for like 97-2001 which isnt right because 96-97 was the one motor and 98+ was the other.

 

Perhapse they are confusing JDM and USDM. US range would look like 97-01. 96-spec would be 96 (or 95) through 97. 98-spec would be 98 through 00. DC5 K20A would start at 2001. US spec never had a 210 HP rating though, just 195. I thought the JDM were rated at 200PS though (Roughly 197.26 HP). What list are you looking at?

 

http://hondaswap.com/reference-mater...ne-list-29128/

 

They state some false data and some data that doesn't apply to both 96 and 98 spec:
B18C Spec R
1797cc's
210@8100rpm
130@7600rpm
11.0:1
81 Bore
87.2 Stroke
VTEC? Yes
dohc
OBD2
1997-2001 Integra Type R (JDM)

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I have a work i progress that I have been doing and all the info comes straight from factory sales brochures, Honda press info, and from Honda websites. Some of the methods of measurement are different and you can find calculators online to help you figure out PS to Horsepower for instance. I will get some time to further complete this when I'm done scanning all of the data that I've collected. Check it out: http://www.integratyper.org/specs/master_comparison.htm