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[JamesV6CDX]

Please could someone let me know what the actual differences are, between these boxes?

I'm guessing fitting an R25 to a 3.0 or above is a no no, as engine would rip it to bits?

Only asking because, if this wasn't the case, I was thinking of buying Abiton's car for a manual conversion jobbie....

Cheers
James

[Kevin Wood]

R25 is supposed to be fine in a 3.0/3.2. Only difference was shot-peening of the gears on the R28.

It's not like an auto box where the clutches have to be sized for the torque output.

[serek]

you can fit R25 with out any problems to 3.0/3.2

[JamesV6CDX]

you can fit R25 with out any problems to 3.0/3.2

Ooooooo 

What about the Diff...... I suppose I'd see a benefit from fitting the differential from the manual car, too?

Am more interested in being quicker off the mark, than top end speed...

[twiglet]

James,

If you want an R25, I can point you in the direction where there is one you can have FOC.

Let me know. 

[serek]

you can fit R25 with out any problems to 3.0/3.2

Ooooooo 

What about the Diff...... I suppose I'd see a benefit from fitting the differential from the manual car, too?

Am more interested in being quicker off the mark, than top end speed...

but if you will fit 4.22 diff to car with manual box you will be fast from traffic lights but on motorway you wont see more then 26mpg or low 20 if you go faster then 80mph
I would go for 3.9

[JamesV6CDX]

James,

If you want an R25, I can point you in the direction where there is one you can have FOC.

Let me know. 

Thanks for the info mate, although I'm thinking if I bought a donor car complete, I'd have the flywheel, clutch pedal, and all the little bits etc I'd need to convert...?

TBH, I could sell it on as scrap value once I'd ripped the tranny out.... so I'd probably break even / not lose much, anyway... 

[JamesV6CDX]

you can fit R25 with out any problems to 3.0/3.2

Ooooooo 

What about the Diff...... I suppose I'd see a benefit from fitting the differential from the manual car, too?

Am more interested in being quicker off the mark, than top end speed...

but if you will fit 4.22 diff to car with manual box you will be fast from traffic lights but on motorway you wont see more then 26mpg or low 20 if you go faster then 80mph
I would go for 3.9

What will my 3.2 have at the moment?

[serek]

you can fit R25 with out any problems to 3.0/3.2

Ooooooo 

What about the Diff...... I suppose I'd see a benefit from fitting the differential from the manual car, too?

Am more interested in being quicker off the mark, than top end speed...

but if you will fit 4.22 diff to car with manual box you will be fast from traffic lights but on motorway you wont see more then 26mpg or low 20 if you go faster then 80mph
I would go for 3.9

What will my 3.2 have at the moment?

3.9
 live as is and you will see lots differents any way

[albitz]

James,

If you want an R25, I can point you in the direction where there is one you can have FOC.

Let me know. 

Mmm,I have been having thoughts about a manual conversion recently.

[JamesV6CDX]

Is this free manual box up by Swindon by any chance? 

[cem_devecioglu]

you can fit R25 with out any problems to 3.0/3.2

Ooooooo 

What about the Diff...... I suppose I'd see a benefit from fitting the differential from the manual car, too?

Am more interested in being quicker off the mark, than top end speed...

but if you will fit 4.22 diff to car with manual box you will be fast from traffic lights but on motorway you wont see more then 26mpg or low 20 if you go faster then 80mph
I would go for 3.9

What will my 3.2 have at the moment?

3.9
 live as is and you will see lots differents any way

3.9 will be fine.. I'm using 3.9 with r25 and the first gear is already very short (although second gear ideal) .. I cant predict how it will be with 4.22..
 
ps: you will need really long octopussy arms when you try to fill the hydraulics for clutch, pumping and bleeding..

[JamesV6CDX]

Must be honest... I am a little worried what my insurance co might make of it... it's already insured as an Auto.. 

[aaronjb]

You'd have to declare it as a modification - 'most' mainstream insurers will let you have a couple of modifications (though they'll charge accordingly depending on your age), or switch to a specialist like Adrian Flux/Sky/etc

[cem_devecioglu]

Must be honest... I am a little worried what my insurance co might make of it... it's already insured as an Auto.. 

if you will continue to use 3.2 , worth every penny.. car transforms to a different one.. go for it..