gearbox problem

[90LAN]

i know you dont need aftermarket lsd oil for a helical lsd
but you choose to ignore my question about what you say you can use

so why dont you answer the question ?
i will buy one of you lsd and use honda eng oil in it
will you warrant it if it plays up ?

or will i be flogging a dead horse trying to claim in under warranty?

[fatboyz39]

To op,

either busted diff or you have a clutch type LSD where it locks when turning hence the clicking and clunking noise.

If you do have a aftermarket LSD, most likely a clutch type just buy the correct oil for it and it wont be as noticeable. Either cusco/motul.

[DC2-PWR]

To op,

either busted diff or you have a clutch type LSD where it locks when turning hence the clicking and clunking noise.

If you do have a aftermarket LSD, most likely a clutch type just buy the correct oil for it and it wont be as noticeable. Either cusco/motul.

OR redline

[MFactory]

For daily drivers and weekend warriors, Honda MTF is more than adequate. If it is just a daily driver that sees no harsh shifting whatsoever, then 10w30 engine oil is also more than adequate.

Honda MTF is just 10w30 engine oil + friction modifiers i.e Helps the synchros to "bite" better.

e240 did not state that you should use engine oil in a race car, so I don't know why you keep asking that.

for a Honda transmission, used on something that will see a lot of track time, what you want is:

1) Low Viscosity Fluid. This is 100% necessity, as the fluid needs to lubricate the bearings. Thick "Gear Oil" cannot do this, and will clog up the oil pathways

2) Friction Modifiers + Yellow Metal Friendly. The modifiers help the synchros to to "bite" better against the gear cone. A synchro ring after all is just a brake pad. The additives in the fluid MUST also be yellow metal friendly (i.e Brass Synchros). A lot of the "Performance Gear Oils" on the market are not yellow metal friendly, and every special "LSD Oil" on the market has the wrong type of friction modifier i.e They make the plates "slip", thus they also make the synchros "slip", which is NOT want you want when shifting at high rpm.

3) Shock additives. These make the fluid more shear stable at high temperatures, and help cushion the shock loads generated by the transmission.

Now, the following is probably hard for most to take in, as they've been brainwashed by the LSD Manufacturers for god knows how many decades now:

Helical/Torsen LSD - This is a gear type LSD, it does NOT require any special sort of fluid. Just use fluid that meets the requirements stated above

Plate LSD - This type of LSD uses plates, which rub against each other causing the "lock" (Helical LSD's do not lock as they are torque biasing). The more friction there is, the harder the plates will lock. A by product of this though is "chatter" i.e the noise commonly associated with a Plate LSD. As with the Helical LSD, a Plate LSD does NOT require a special type of fluid. Just use fluid that meets the requirements stated above. However, if you do not like the "chatter", then you should add Ford Friction Modifier in very small quantities until the level of "chatter" becomes acceptable to your ears. Noise control is the ONLY reason to use this type of friction modifier (which has the opposite effect of the friction modifier used in MTF or Synchromesh-type fluids) on the average street/weekend warrior. If it is a race only car, then you shouldn't be concerned with noise. In this scenario, using friction modifier is so that you can fine tune how much the plates "lock".

The ONLY reason why an LSD Manufacturer insists that you must use their "Special Oil" is because they are trying to make more money from you. And 90% of car enthusiasts, unfortunately, have been brainwashed and believe them (or believe their tuner/mechanic, who are just as brainwashed).

So to conclude:

Street Car/Daily Driver - Honda MTF
Street Car/Weekend Warrior - Honda MTF/Torco MTF/Amsoil MTF/Pennzoil Synchromesh
Race Car - Torco MTF/Amsoil MTF/Pennzoil Synchromesh
+ Plate LSD - Add Ford Friction Modifier until the noise level becomes acceptable to you. Everyone is different. However, the more you add, the less effective your synchros are at high rpm.

P.S If you are wondering why I left out Redline, it is because with 70% of our rebuild customers who had used it, it had destroyed their bearings. Some have luck, some don't.

[YLDCRD]

To op,

either busted diff or you have a clutch type LSD where it locks when turning hence the clicking and clunking noise.

If you do have a aftermarket LSD, most likely a clutch type just buy the correct oil for it and it wont be as noticeable. Either cusco/motul.

Im thinking it does have a clutch type LSD. However when just turning around a corner say at 60kms 3rd gear. it will still click. is this normal?

Yes it does have an aftermarket LSD, NOT OEM.
Whats the best OIL to chuck in it?? ill go drop and chuck some new one now if thats the case.

Called up mod project and they know the history of the car and suspect its gearbox LSD related and not the driveshafts. So back to square one, have to rip apart the gearbox to inspect.

[B18cEG]

so would you use engine oil in your race car now
if you endorse it so much and say it works
would you warranty your race parts if i use engine oil in one of your lsd?
fact is most normal people would use engine oil for there engines
and lsd gearbox oil for there lsd gearboxes

Stop trying to salvage your argument cos theres no point, u were proven wrong so you shifted your argument to RACE CAR this and RACE CAR that, whos talking about race cars hear? Yes we all know in the B's the trans oil and diff oil is the same since its in the same housing therefore in this situation the gear oil is trans oil, this isnt a car where there is a seperately mounted diff that uses a thicker/special gear oil compared to what the gearbox uses, Stop ur argument, you lost, we all do sometimes

[B18cEG]

Im thinking it does have a clutch type LSD. However when just turning around a corner say at 60kms 3rd gear. it will still click. is this normal?

Yes it does have an aftermarket LSD, NOT OEM.
Whats the best OIL to chuck in it?? ill go drop and chuck some new one now if thats the case.

Called up mod project and they know the history of the car and suspect its gearbox LSD related and not the driveshafts. So back to square one, have to rip apart the gearbox to inspect.

You need to find out exactly what diff it has for best picking an oil

[YLDCRD]

Well maybe its clunking because it actually does have a clutch type LSD.
Sometimes depending on how i ride or take off, will determine how much clunking occurs.

I really just dont know, if this is how a clunking of aftermarket LSD is meant to be, thats s*** for a daily driver.

Is anyone in the area that is kind enough to take it for a spin and tell me if its normal or not. Knox Area

[e240]

Plate LSDs will clunk - I used to use an ATS and man, did it Clunk, especially at low speeds, sharp turn - TUnK TUnK TUnK, at the same time, you can feel the steering pushing, and the car lunching like both wheels are locked (But hey, thats whats its for isn't it) . It shouldn't really happen at high speeds especially when in 3rd (or maybe I just don't notice it at higher speeds).

Plate LSDs are good, much better than Helical, IMO, but Must keep in mind that both serve a different purpose, i.e. Helical more for street use (quiet, maintenance free and works under 90% of street situations)

You can actually test the service limits on the LSD and see if its working with the gearbox in the car. You need a torque wrench (the Dial/gauge type, jack up the car and then with the torque wrench, attempt to turn the axle - The torque reading you get until breakaway will tell you if the LSD is ferked or not.

[YLDCRD]

Plate LSDs will clunk - I used to use an ATS and man, did it Clunk, especially at low speeds, sharp turn - TUnK TUnK TUnK, at the same time, you can feel the steering pushing, and the car lunching like both wheels are locked (But hey, thats whats its for isn't it) . It shouldn't really happen at high speeds especially when in 3rd (or maybe I just don't notice it at higher speeds).

Plate LSDs are good, much better than Helical, IMO, but Must keep in mind that both serve a different purpose, i.e. Helical more for street use (quiet, maintenance free and works under 90% of street situations)

You can actually test the service limits on the LSD and see if its working with the gearbox in the car. You need a torque wrench (the Dial/gauge type, jack up the car and then with the torque wrench, attempt to turn the axle - The torque reading you get until breakaway will tell you if the LSD is ferked or not.

How exactly do you test it ? If i tell my mechanic would he know how to test it or do i have to bring it to a gearbox specialist? Would you recomend any gearbox specialists in melbourne?

[90LAN]

Stop trying to salvage your argument cos theres no point, u were proven wrong so you shifted your argument to RACE CAR this and RACE CAR that, whos talking about race cars hear? Yes we all know in the B's the trans oil and diff oil is the same since its in the same housing therefore in this situation the gear oil is trans oil, this isnt a car where there is a seperately mounted diff that uses a thicker/special gear oil compared to what the gearbox uses, Stop ur argument, you lost, we all do sometimes

so why dont i get a reply to my answer

didnt lose anything just stating the obvious

do you use engine oil in your lsd box?

why dont you use eng oil in your gearbox too
and see what happens

your sticking up for your mate who says he uses engine oil in his gearbox in his race car
we used engine oil (Mobil 1, 15w50) without any adversed effect. If not for my PLATE lsd, I doubt that even now if I ran engine oil, it would have much adverse effect.

so learn how to read before you post stuff you dont know what your talking about


to the op nice to see you have a aftermarket lsd

did you fix your drive shafts yet ?

[B18cEG]

Ur an idiot 90LAN, wat u said originally has nothing to do with your current argument or " why don't you go put engine oil in your race engines box" piss off mate, I laugh at u. Ur just ignorent and one of those guys that sticks to something even if it's wrong. Yes you could run engine oil in ur LSD gearbox and it will run PERFECTLY BUT! push it beyond stock intended use and it will fail just like anyhing else. Question answered what do you want? What have you gained from this?