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Hi,

I think its about time i upgrade my brake master cylinder, Im running AP Racing CP5200 calipers on the front. running std r33 gts-t (non-abs) master. I was thinking about upgradeing to the R32 GTR VSPEC 2 master but im not happy to pay over $500 from nissan for a stock item.

I have been looking on the AP website and they sell alot of masters, i was wondering if anyone would be able to put me in the right direction on what would be best for my application and what i would need to make it fit?

http://www.compfriction.com.au/master_cyli...er_cylinder.php

CP2623 - A compact flanged mounted Master Cylinder suitable for all brake and clutch applications especially where the space is restricted. Short travel to cut-off is standard, extra short cut-off also available. 10 bore sizes from 14.0mm to 25.4mm. Hydraulic threads are Imperial.

CP6465 - A new concept in Master Cylinder design. This cylinder operates on the Pull rather than Push principle of other cylinders. It has a built in trunnion mounted needle roller bearings for direct mounting to balance the bar. The ultimate in master cylinder efficiency. Metric threads.

CP6093 - A Master Cylinder suitable for most brake and clutch applications where space restrictions are not a primary consideration. the longer available stroke makes it particularly suitable for some clutch installations. Long thread potion allows the push rod length cut to suit. 8 bore sizes from 15.9mm - 25.4mm. Supersedes CP2293 Master Cylinder family.

CP5854 - A new high efficiency single circuit, short push type Master Cylinder. Fixed through a trunnion system running in needle roller bearings and with a one piston/push rod it offers a significant improvement in efficiency over traditional Master Cylinder designs. Full range of 10 bore sizes. Imperial threads.

CP5855 - A new high efficiency single circuit, short push type Master Cylinder. Fixed through a spherical bearing and with a one piece piston/push rod it offers a significant improvement in efficiency over traditional Master Cylinder designs. Full range of 10 bore sizes. Imperial threads.

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It looks like this is the type i will be after

http://www.apracing.com/info/products.asp?...+Type_2390_2389

Weight 0.31Kg (0.7lbs)

Full Stroke 25.4m (1.00")

Travel To Cut-Off - Short - .68 to 1.09mm (.27" to .43")

Inlet Hydraulic Thread M12 x 1.0

Outlet Hydraulic Thread M10 x 1.0

Push Rod Threads Available PRM = M8 x 1.25 - PRT = 5/16 UNF

Push Rod Length from Mounting Flange PRM/PRT115 - 115mm (4.53") PRM/PRT160 - 160mm (6.30") Other Pushrod Lengths available. Contact Technical Department for more information.

Bore Sizes Available Part Numbers

14mm CP4623-88PRM115 / CP4623-88PRM160

CP4623-88PRT115 / CP4623-88PRT160

15mm CP4623-89PRM115 / CP4623-89PRM160

CP4623-89PRT115 / CP4623-89PRT160

15.9mm (.625") 5/8" CP4623-90PRM115 / CP4623-90PRM160

CP4623-90PRT115 / CP4623-90PRT160

16.8mm CP4623-905PRM115 / CP4623-905PRM160

CP4623-905PRT115 / CP4623-905PRT160

17.8mm (.70") CP4623-91PRM115 / CP4623-91PRM160

CP4623-91PRT115 / CP4623-91PRT160

19.1mm (.75") 3/4" CP4623-92PRM115 / CP4623-92PRM160

CP4623-92PRT115 / CP4623-92PRT160

20.6mm (.812") 13/16" CP4623-93PRM115 / CP4623-93PRM160

CP4623-93PRT115 / CP4623-93PRT160

22.2mm (.875") 7/8" CP4623-94PRM115 / CP4623-94PRM160

CP4623-94PRT115 / CP4623-94PRT160

23.8mm (.937") 15/16" CP4623-95PRM115 / CP4623-95PRM160

CP4623-95PRT115 / CP4623-95PRT160

25.4mm (1.00") N/A

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