Gear Boxs!

[yogibear]

ok i am just geting to the end of my rb30/26 head build and will be pushing some decent numbers, and have been looking at the OS giken 88 but is worht the money? will i kill it?

i wanted it as its a Sequential 6 speed dog box and rated to some pretty good power , has any one used one? killed one? any info really

hollinger was another option but their 22k+ the extra crap and i not sure thier any better the os giken?

any other options on what people are ruining and what other drive line should i be beefing up?

thanks heaps

[yogibear]

o and on a side note what clutch should i be using , with around the 800hp mark? tripe plate or quad?

thanks

[tricstar]

o and on a side note what clutch should i be using , with around the 800hp mark? tripe plate or quad?

thanks

I'm running the OS 1st-5th and OS 3CS triple with 800hp, all good

[yogibear]

still in h patten?

any one elsa?

[tricstar]

yep still H pattern, same as normal except for a longer 1st gear, which combined with a triple plate solid centre clutch can be a bitch on hill starts and in traffic

another I know with similar figures uses a ppg dogbox but doesn't seem to last long between rebuilds and obviously not ideal for the street..

decisions decisions ?? if you can afford it get the hollinger sequential .

[yogibear]

you dont think going the OS giken sequential is a good idea?

[tricstar]

you dont think going the OS giken sequential is a good idea?

nah I'm sure any sequential would be awesome, lightning fast changes , are they all dog engagement? could be quite a bit of up keep-maintenance, on the down side...

[BoostdR]

I have gone through 12 std gearboxes. I now use with Redline gear oil. Haven't broken a box since....

[tricstar]

I have gone through 12 std gearboxes. I now use with Redline gear oil. Haven't broken a box since....

holy shit 12 , if you are running the power in your sig. with antilag, I can't see how oil is saving the box, but I know guys with around 600rwhp and standard boxes, they have broken them too but cheap to get a second hand one compared to OS etc, they do change a bit softer now ..

the OP is looking at 800hp I don't think a standard box with Redline oil is the answer.

[MrStabby]

I have gone through 12 std gearboxes. I now use with Redline gear oil. Haven't broken a box since....

Which Redline are you using?

What were you using before that?

[yogibear]

nah I'm sure any sequential would be awesome, lightning fast changes , are they all dog engagement? could be quite a bit of up keep-maintenance, on the down side...

i believe they are all dog style gears, just wondering what would rebuilds be worth? and how often will they have to be done?

i really want sequential and i would rather buy one box once and not be breaking boxs.

i do not see red line holding a box together at all.

seems hardly any one is using the os giken 88 box

any more info peoples thanks heaps

[Duncan]

well.....according to the internet (which is never wrong), the os sequential box is actually a rebagded hollinger one. so you are just paying japan premium and getting less service/ support than buying the local one. hollingers come up on here already in skyline bellhousings fairly regularly

you should expect to perform regular maintenance on any high end gearbox - once a season at a minimum.

[yogibear]

lol season? this part street car witch will see some circuit and drag work. what sorta km you rekon you would see out of a box before it needs a rebuild? and when you say rebuild its just bearings isnt it?

one thing that leads me to belive you are right about the rebadgeing thing is they use hollinger output shaft , But one thing that is wrong is about the price.

i can get a os giken 88 6 speed in Australia for 15.5k or a hollinger for 22k + the extras you need and the OS comes with every from shift lights to the control box.

[T04GTR]

os 88 and os88v2 is a complete os giken design. nothing to do with hollinger.

pros.. bigger than a hollinger. apparently shifts well.

cons. 1 piece lay shaft. ie. cant mix and match ratios, and over seas so parts are abit harder to get. also intergral bellhousing not seperate.

both use the chev 26 spline input shaft. ie os r3c etc clutch or custom setup. both come with a digital display for gear selected.

the os is fairly new on the block so not as well used as hollinger.

[yogibear]

o ok thanks heaps for the info don't happen to much about rebuilds do you?

thanks

[NYTSKY]

Stick with the stock box unless you do alot of drag or circuit work.