SR20 Hybrid Boxes

[DR86FT]

Will the rb25det gearbox fit onto the sr20 bellhousing and also line up with the same shifter hole in an ae86?? ive been searching the forums only found rb20 box hybrid. anyone done it or know any info on this please reply. also choosing the rb25det box for strength over the rb20 box

[SNAP]

i don't think it does, The 25 box is massive instead ov adding massive weight just save you ass for an OS gearset or somthing.. The VQ30 box is shorter and cheaper than an RB box and just as strong, there is a guy in QLD making up kits for the conversion, cost about $1100 search nissan silvia its on their. hope this helps u a bit

[Delazy]

as said....vg30 box is better option atm....bloke making the kits is actually in VIC not QLD username - "nigel"

[slide86]

i just read a thread on NS about this.

its not cheap. you need to take your SR bellhousing and the RB one to some one so they can cut and weld them together, i read that the going rate was around the $1000 for this

the RB25 box doesnt bolt to an SR housing

[DR86FT]

<div class='quotetop'>QUOTE (slide86 @ Jun 14 2008, 02:01 AM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=545824)</div>
i just read a thread on NS about this.

its not cheap. you need to take your SR bellhousing and the RB one to some one so they can cut and weld them together, i read that the going rate was around the $1000 for this

the RB25 box doesnt bolt to an SR housing[/b]


thanks was just about to ask on NS. maybe rb box with a gearset when it breaks would work out cheaper?

[SNAP]

<div class='quotetop'>QUOTE (delazy @ Jun 13 2008, 10:57 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=545799)</div>
as said....vg30 box is better option atm....bloke making the kits is actually in VIC not QLD username - "nigel"[/b]

Yeah thats the guy i thort it was QLD.. stuff.. there a good looking kit as well


<div class='quotetop'>QUOTE (slide86 @ Jun 14 2008, 02:01 AM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=545824)</div>
i just read a thread on NS about this.

its not cheap. you need to take your SR bellhousing and the RB one to some one so they can cut and weld them together, i read that the going rate was around the $1000 for this

the RB25 box doesnt bolt to an SR housing[/b]

u take your bell housing to a machine shop , he sends u all the diagrams to give to the engineer and everything.. i would go it over rb25 box

[DR86FT]

<div class='quotetop'>QUOTE (SNAP @ Jun 14 2008, 09:33 AM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=545866)</div>
i would go it over rb25 box[/b]


i don't understand? it would or you would go the the rb20 over the rb25 box?

[dustyae86]

how much power are you planning on running?? I would jsut use the 20 box and see how you go

[Konakid]

SR20 Box is the same as RB20 box strength wise.

[DR86FT]

aiming for 220rwkw . so now i need to find a rb 20box with yoke and crossmember.

[DR86FT]

picking up the rb20det 5 speed on wednesday. is it hard to hybrid the box. also don't have a rb20 yoke. will the sr20 yoke fit?

[Gunner]

Its a bitch unless you have done many before, thats why so few people actually do it well, and why it costs, it would work out cheaper, to blow your box and upgrade it.

When you consider you could blow your box, and rebuild it with a tough 1-3rd gears, with standard 4th & 5th, for $3-4000.

then to spend $1-1500 on modding the $1500 nissan box, $650 for a tailshaft, More cross member and tunnel stuffin around, an rb25, barely fits in a commi tunnel, no way you will get inside a standard 86 tunnel, the price for mounts and tunnel mods could be anywhere from $1500-3000 easily.

Its cheaper, easier and quicker to rebuild the crappy sr/RB20 box.

[slydar]

not needed in an 86, lighter car, smaller tyres, and 220kw isnt all that much power, just doesnt add up at that power level.. dw about it.

[DR86FT]

<div class='quotetop'>QUOTE (gunbz-r @ Jun 17 2008, 07:32 AM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=547374)</div>
Its a bitch unless you have done many before, thats why so few people actually do it well, and why it costs, it would work out cheaper, to blow your box and upgrade it.

When you consider you could blow your box, and rebuild it with a tough 1-3rd gears, with standard 4th & 5th, for $3-4000.

then to spend $1-1500 on modding the $1500 nissan box, $650 for a tailshaft, More cross member and tunnel stuffin around, an rb25, barely fits in a commi tunnel, no way you will get inside a standard 86 tunnel, the price for mounts and tunnel mods could be anywhere from $1500-3000 easily.

Its cheaper, easier and quicker to rebuild the crappy sr/RB20 box.[/b]


<div class='quotetop'>QUOTE (slydar @ Jun 17 2008, 07:55 AM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=547376)</div>
not needed in an 86, lighter car, smaller tyres, and 220kw isnt all that much power, just doesnt add up at that power level.. dw about it.[/b]


thanks guys for your help hope this helps others too. maybe a guide to hybriding the box would be nice. i will let you know how my conversion goes.

cheers Kaan