hey wassup guys so a friend sent me a video on youtube on this 350Z that this japanese guy was driving.. so as i was watching i noticed the guy was only shifting up and down... so i started to read the comments to see if anybody know some were saying it was "Hollinger 6-speed sequential gearbox" and some were saying it was "straight cut gears" does anybody know about this... can someone give me an insight on what it is??? and where to get one and how much it would cost? also here is the link http://www.youtube.com/watch?v=9knNido7Aj0

 

Jun's AWD Z. anyway about that clutch setup, its sequential and you might want to start here:

http://www.ikeya-f.co.jp/en/index.html

They make a setup for our cars and don't list prices .. meaning its gonna hit hard on the wallet most likely. They tell you all about the shifter and how it works on the site. Also take a look at some of the pictures they have, I believe I saw a Rally prep. Z on the site somewhere with its huge set of headlamps.

 

what im wondering is if the sequential shifter is for 6MT but in the video hes not kicking the clutch at all whats up with that??

 

forget what i said

 

sorry dude but thats an actual car

 

Yup sequential FTW

 

This is only a shifting mechanism, you still have to use the clutch.

The Hollinger 6-speed in the JUN 350z is meant for the RB26 and thus they had to use an adapter plate and whatever else. They are a little pricey but worth it if you can run one. I think somewhere in the $8000 and up range depending on gears and ratios.

 

Won't the car shift just as fast if you rework the valve body on a 5AT?

 

Its a holinger 6 speed seq. RD6-S and it cost about $20,000.

Holinger will relase a bellhosuing for the VQ35DE around May this year and its a top notch racing transmission that is rated for 650lbs TQ

They good thing about it, is that you can match the ratios with the track that you race and engine powerband.

I have attached the ratio sheet. www.holinger.com.au

Az

 

More info:

Sequential shift gearbox designed for use in front engine, rear wheel drive racecars.

Torque rating for endurance events is 880Nm (650ft.lb).

The gearbox is fitted with 6 forward gears and reverse gear.

The internal lubrication system consists of magnetic / paper element filter, an oil pump with ports for connection to external oil cooler and integral spray bar to feed cooled oil directly onto the gears.

All gears are removable from shafts with an extensive range of ratios available.

Input is via a removable quill shaft.

Output available in fixed flange or slip yoke configurations.

Quill shaft and fixed flange can be customised to suit requirements.

An electronic gear position sensor is supplied for interfacing with an electronic dash display. Alternatively a stand alone gear indicator is available for cars not fitted with an electronic dash.

Case hardened nickel chrome steel is used for all gears and shafts.

The selector forks are high tensile, nitrided steel.

Casings are cast LM25 aluminium alloy, heat treated to T6 specifications. O-ring seals are used on all joint faces.

Clutch splines are normally 1 1/8" x 26 spline, 24/48DP, 30 deg P.A. Alternative clutch splines are available to customer specification.

Also available with profile ground gears, for increased efficiency and durability.

Gearbox weight is 39kg (86lbs).

 

i know that but when you watch that video the only time the driver uses the clutch is when he's down shifting he never uses the clutch when he shifts up i just wanna know why is that....

 

No its not all about how fast it shifts. Its also about loss of driveline power.The part you see him not using the clutch to upshift has a few differant names. powershifting ext.

 

you dont HAVE to use the clutch to upshift in a synchronized gearbox

 

^^^ I'm sure you mean a dog box

 

For those of you wondering, this gearbox is for racers only, not for street use. These transmission requires a rebuild in a fairly frequent manner which is very expensive. If you are a super baller, then i guess you can use this on the street, but straight cut gearboxes such as those are noisy and requires frequent service which does not make it a ideal for a daily driver's drivetrain of choice.

 

Price 160,000 Yen

 

synchronized, such as any manual transmission containing synchros, ie: ANY AND ALL new manuals

 

So these transmissions have little to no loss of power from the crank to the driveshaft, then.

 

Since nobody answered this for you, he doesn't need to use the clutch to upshift because its a dog clutch box. It basically just jams it into gear with the sequential upshift and cuts power momentarily by either slight lift off on the accelerator or by ecu cutting power on upshifts, but the ecu must be connected to gearbox. This gearbox has no syncromesh between gears like a consumer gearbox. Now these gearboxes need lots of maintenance as mentioned before.

 

You are aware this thread is close to 2 years old?