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RB25DET With Celica 5 speed

Started by _CanberraTorana_ , Mar 29 2006 07:38 PM

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15 replies to this topic

#1 _CanberraTorana_

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Posted 29 March 2006 - 07:38 PM

Do they make bell housings for rb25det's to celica 5 speeds???

are they the best option?

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#2 _jap-xu1_

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Posted 29 March 2006 - 09:45 PM

why use a toyota gearbox?
the stock rb25 manual is way better than a crappy celica box.

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#3 Heath

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Posted 29 March 2006 - 10:01 PM

Oui!

"The stock RB25 manual is way better than a Celica box" would have been adequate. A celica box still shits over my M20 and I don't mind my M20, go easy on it

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#4 _JBird_

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Posted 29 March 2006 - 10:38 PM

do you wanna muck around with different bellhousings or do you just want to cut a hole further back in the tranny tunnel. comes down to preference. imo rb25 gearbox is really strong compared to celicas.

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#5 _Chaotic_

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Posted 29 March 2006 - 11:28 PM

would probally get off easier with rb20 box, but rb25 is hell of a lot stronger. all comes down to dollars...

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#6 _JBird_

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Posted 30 March 2006 - 02:25 AM

yeap, also gotta remember most of these 2nd hand RB25's have been sitting on docks in japan waiting to be shipped over, maybe for months. in that time its been rained on, ther might be a bit of rust here and there. Disregarding the fact that the engines are turboed and been in service for on average 15years or whatever.

that being said try before u buy, and dont buy cheapie rb25's unless youve seen them started etc.

(yeah i noe its late was doing assignment)

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#7 _CanberraTorana_

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Posted 30 March 2006 - 07:33 AM

how much is involved in cutting the tranny tunnel back????

are you saying buying a half cut is bad for a rb25????????

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#8 Tiny

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Posted 30 March 2006 - 09:20 AM

THis is in the wrong section... Ive moved it to the general QUESTIONS tech area.

Thanks.

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#9 _CanberraTorana_

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Posted 30 March 2006 - 02:55 PM

can the celica box hold or not???

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#10 _jap-xu1_

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Posted 30 March 2006 - 04:12 PM

the thing is your talking about a fairly costworthy conversion that is kind of backwards in the first place.

a na vl 5speed would be just as good as the celica box and bolt straight up.

im not being smart or nothing, its just a bad idea.

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#11 _CanberraTorana_

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Posted 30 March 2006 - 05:14 PM

its ok u can be smart im taking all this info in learning

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#12 _jap-xu1_

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Posted 30 March 2006 - 05:36 PM

ok.
rb25 shares the same 9.5" flywheel as the naturally aspirated (na) vl commodore rb30.
though the 2 gearboxes are very different in terms of strength.

the vl na box(mf5) is a smaller box but it can still take some fair power before giving up the ghost.

the rb25 box is much bigger and is like a newer version of the vl turbo box(mx7).they can both hold huge hp in stock form.

the mx7 flywheel is bigger at 10" and will not fit inside a mf5 bellhousing or a rb25 bellhousing and a different startermotor is used on the mx7.

all rb blocks have the same bolt pattern at the back so all these boxes and more will bolt straight up.

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#13 _brett_32i_

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Posted 30 March 2006 - 07:27 PM

if you went toyota box, get the r154 supra box!!!!

only advantage i think with celica over rb20/na box is the length.

im using the rb20 (det) for now. put bigger/better bearings in the carrier, shotpeened shafts and gears, so hopefully it will see a couple of hot laps before it goes bang....
then its in with a r154

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#14 _dansedgli_

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Posted 30 March 2006 - 08:46 PM

I didnt think anyone made conversion kits for the R154?

Leigh - any ideas how much bigger the R33 box is compared to the NA? Am I gonna have to do the trans tunnel again?

The NA VL box fits in the stock trans tunnel, thats what I have in there now. Its about 2 inches behind the stock spot for the shifter.