31 replies to this topic

[Dave E]

M32 box - Astra VXR (for the vxT)
Europa driveshafts - lotus dealer
New front mount - No, use the vx220 front mount
Passenger gearbox Mount and astra adaptor (usually comes on the vxr box, but only £25)
Rear gearbox mount
Heavy old dual mass flywheel

alter the gear cables - only slightly adjust one
alter the gear shifter - reverse gate required

is there a lightweight flywheel for this conversion - yes
what clutch do I need - standard vxr or Helix

Anything else I've missed? - lengthen reversing light switch wiring loom, modify clutch pipe

Thank you sir, just what I needed, now the search for rocking horse dung (at a reasonable price) commences

[siztenboots]

can't remember now but the ratios on the Alfa were good , but the sixth was quite short iirc

[vocky]

For the vxT the astra vxr gearbox has the best ratios For a high revving 2.2 NA the alfa romeo 2.2 JTS gearbox has the best ratios For a 7k rev limit 2.2 NA the corsa vxr ratios are very good, but you would need to swap the bellhousing with a 2.2 M32 item

[siztenboots]

does the vectra vxr 2.8T 6spd box fit the 2.2?

[slindborg]

I run the F23 with 2.5-3 litres of oil (reccomended is 1.75)

3 litres takes it flush with the driveshaft housing seal
stops the 4.17 diff whining

I will be fitting a cooler with an electric pump controlled by thermostat switch
But I am not sure of ideal operating temp

take one of the plastic fingers, heat it up (logging the temperature) until it melts.... take an arbitrary number off that and voila, one fluid temperature


Or just run it at about 90Deg

http://www.digi-pane...m/trannyoil.htm I know its for slushers, but the oil pan temp seems to hold true with 75-93deg listed.

[siztenboots]

tempted to reuse a spare VXT oil/water cooler and reject heat into main rad circuit ( will also prewarm gb oil)

[Korkey]

Hello. Would someone please tell me what the ratios are for both the standard 220 VXT gearbox and the Astar VXR gearbox? Or link me to the same information? Thank you for your time. Korkey.

[Nev]

Hello.

Would someone please tell me what the ratios are for both the standard 220 VXT gearbox and the Astar VXR gearbox?

Or link me to the same information?


Thank you for your time.



Korkey.

I think DuncanVxr would know this info Rich.

[chris]

I dont believe the M32 is any stronger than the F23 if thats your main reason. My F23 seems to cope fine with 400 ft/lb so far. Maybe the M32 selector forks are sturdier though, not sure on that.

It was published that 23 (F23) equated to 230nm torque but this was latter corrected 230 lbs/ft torque

gears are pressure fit on the F23
gears are spline shaft on the M32

Not many cars can truely utilise 400 lbs/ft (i'm sure slinky will try and correct me)

I had already performed a M32 swap on my VXT.

Could you explain, why a German (and american) gearbox manufacturer give a design torque in lbs/ft to its gearbox ?

Edited by chris, 26 October 2011 - 05:42 PM.

[Korkey]

OK Nev........waits for Duncan to come along. Chris, what was the conversion like? Your thoughts and observations please. Korkey

[siztenboots]

Hello.

Would someone please tell me what the ratios are for both the standard 220 VXT gearbox and the Astar VXR gearbox?

Or link me to the same information?


Thank you for your time.



Korkey.

a lot of the M32 details are here (top hit in google)

http://www.vx220.org...earbox-options/

[Korkey]

siztenboots...............thank you. Korkey.