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Just wondering if this is a possibility with the 97-01 5spd Crv. Can you change your gears, similar to what can be done with the LS integra transmissions and b16 gears in the 5spd Crv's?
The reason I ask is because I have a 2001 Crv with a b18c5. On top of it being gutless under 7000rpm, when I do rev it up and shift to 2nd, the gearing is so tall it falls way out of its torque curve. I can go close to 120km/hr in 2nd gear, making it at a weird rpm when i'm trying to pass on the highway as well. This crv is not fun at all to drive and slower than my 99 5spd with the b20z, hell it feels slower than my 98.
Anyway, any suggestions or tips would be appreciated.
So I am very confused by your questions. Why would you want to swap longer gears into your transmission? The gearing is actually rather short compared to most B-serious transmissions including the final drive. Either you have something wrong with your engine or you don't realize the power curve between the engines you compared is greatly different.
The CRV ratios look very similar to the LS transmission, i want the tighter gearing of the type-r / b16 transmssions. The 1-2 shift is horrible and the rpms. I realize that the CRV's have a good final drive ratio, but I am just wondering if i can use 1-2-3 out of a tighter geared transmission
Onebad, he want's shorter gears in the 1-2-3 for keeping the revs in Vtec.
From what I know the V trans is not compatible with the B trans. Also having the cable trans makes that 1-2 a bitch at high rpms. I think the F/H gears are compatible. I just read a whole tonne on this topic as per OneBad's recommendation so it's a little fuzzy. Guess I will have to re read lol
Red.Da can you lower your Vtec engagement point or are you running OEM PCM?
You are overlooking what the Final Drive actually does. With that being said, no absolutely not since the SBXM transmission is an H-series for the most part. The only thing that can be fudged is 5th gear which won't help you. The 1 - 2 shift sucks for more reasons than that seeing as how you get locked out at higher RPM shifts (~ 8k+ RPM). Something that greatly improves the feel of a CRV is to downsize the tires to under 25" or so. People have talked of custom gears, but have never provided proof. The cost was in the thousands.
I have not heard of anyone swapping stuff from a Euro R / Accord Type R but these should be the gear ratios.
Berz - The CRV transmission is basically a H-series transmission with a B-series splined input shaft and bell housing. Not to mention the transfer case (obviously ). If you need rebuild kits you need the Euro R spec stuff (well now they list CRV kits, but it's just the ER / ATR stuff).
You can in fact put a B-series 5th gear in the SBXM transmission. I have done it personally, and intend to make a write-up one of these years when I get time to do so.
Thank you for the help. Basically the answers I assumed but had hoped other wise. As for smaller tires, while they would obviously help, I do quite a bit of highway driving and it already revs fairly high at 110km/hr.
The engine is a jdm itr engine and runs the ecu to match. I don't know how much lowering the vtec engagement would help. Currently if I shift at 8500rpm in 1st, I am going close to 70kmhr (44mph) and it drops to 5200rpm. Definitely not optimum for the engine, and probably not the best engine for an suv.
I would love to go the euro accord-r transmission route, but imagine getting one would be fairly difficult and expensive.
I personally swapped a LS 5th gear on mine just to try it and to help lower my RPM on the highway with my shorter tires. I was told by Synchrotech Transmissions (well the phone lady anyways) that it hasn't / couldn't bedone, when it has...
Looks like Euro R transmissions are going for $1,000 - $1,500 and in who knows what kind of condition. May be worth looking into... HHMMMM... LOL! The 1 - 2 shift RPM drop sure kills the whole experience.
3,000 RPM at ~70 - 75 mph IIRC. I have had my CRV torn apart for a few months now. This is my 4th major /semi-major reconstruction of it and I am starting to lose interest this time around for some reason. Taking way too much of my time for no good reasons LOL!
hi there
i did some work and research in this matter
i have fitted all gearing from a h22 box.
all together with the 4.266 fd and oem lsd
i have to find my notes if anyone wants details...
cheers
as you can see i had to machine the bearings exterior as reboreing the case was impossible for me
the other thing i had to do was to extract the bearing from the flywheel and produce a bush as in f,h series flywheels.
and to end this avalanche
a comparison between the modded h22 diff with ring and crv diff with it's ring
you can do the math for the advantages on this setup and think also at what would be like with the 4.06 fd combined with the us accord wagon's 5th -
0,685....
i would like to source such a 5th gear set...0,685
cheers
Nice! With a BUT... Why would you want a lower Final Drive? Were you going for gas mileage or something? That's making the overall transmission much longer geared. These heavy pigs need all the help they can get. If anything, I would want to increase the Final Drive. That would be almost impossible though due to the case design. Props on the build up ring - it's very nice.
Nice! With a BUT... Why would you want a lower Final Drive? Were you going for gas mileage or something? That's making the overall transmission much longer geared. These heavy pigs need all the help they can get. If anything, I would want to increase the Final Drive. That would be almost impossible though due to the case design. Props on the build up ring - it's very nice.
true
but not in my case
i had the gearbox fitted on my eg awd turbo
the car is still in use but with a std box now because idamaged the 1-2 sleeve selector and corespondent selecting teeth on 2nd gear...
the car has already covered 37000 km with crv box and shuttle diff,daily driven,europe wide and drag racing from time to time on a 368 hp b16 turbo.
you can always make a custom final drive ,but what would that be?
4.9???
i think it's possible in the sama manner as i did to use all internals from a itr...box with a 4.78 fd...and of course the nice ls 5th.
cheers
my car weights 1160 kg with full interior,ful gas (std quantity)and me 80 kg,15 '' wheels.
cheers
I see, well then that makes sense. I am talking from what the perspective of what this sub-forum is dedicated to - the CRV chassis. It's curb weight is 3,200 lbs and only goes up when you start adding things to it including the driver (obviously). Not only that but it has such bad drag coefficient it's almost like driving a brick wall.
Like I said before, I have a hard time believing that the case would support a larger final drive. It may be possible though, but it still isn't a cure for the 1 - 2 shift. The smaller tires cure the issue of the final drive anyways. Your solution is decent, but would be detrimental to the performance aspect of a CRV so for us CRV enthusiasts, it's not an option. I use boost by gear to compensate for the 1 - 2 shift somewhat...
PS - To "Oz" from 16vminiclub - I am only "moaning" because of the reasons listed above. This is after all, a Honda forum in a specific section dedicated to CRV / Elements.
Nice piece of info added but I will have to ask as well, whats with the longer gear ratio? Were you mostly looking just for topspeed on the drag. I don't think this would be good for autoX though. Again nice hybrid work!!!
PS - To "Oz" from 16vminiclub - I am only "moaning" because of the reasons listed above. This is after all, a Honda forum in a specific section dedicated to CRV / Elements.
Ooppss ... awkward lol
Sorry, no offence intended. Reading it back it didn't quite come out as I meant it, was just trying to say that someone managed to change the gearing but it wasn't quite what you guys needed hence you "moaning", perhaps "disappointed" would have been better
Us guys doing awd vtec conversions to our Minis are running wheels/tyres of around 19 to 21 inch diameter so this solution does work nicely for us It'd be good to have some specific info about making the bush and machining the bearing
Sorry to be bringing this back from the dead. Great info here and I too am at the tail end of my Civic AWD project, so this could be very useful. I am just barely driving the Civic now with the SBXM and am already missing my taller gears of my LS. These projects never end. Great stuff though, thanks for sharing!
06-05-2015, 06:19 AM
Changing gearing in 97-01 awd crv
). If you need rebuild kits you need the Euro R spec stuff (well now they list CRV kits, but it's just the ER / ATR stuff).
It'd be good to have some specific info about making the bush and machining the bearing 