Looking to purchase a set of cams for my XB12R (2007) having bought a NHRS 1250 kit,barrels/pistons and want to get the best performance/ reliabilty I can from them. have all the usual mods - airbox, exhaust, breather, ECM - race map etc,
Have been recommended to get N4/8 (if they fit?) and possibly hand ported heads, although I believe the Buell thunderstorm heads are modified slightly already!
Contacted Andrews direct, but not having much joy. They state "the XB requires special order cams,the N4's are not the same part numbers as shown in our catalog for XL engines, but we can do any of our lobe profiles for an XB engine. The N4 would be best suited for 9.5-10.1 & N8 a 10:1 compression ratio.
Little confused as some listed on ebay state they are for sporster/ Buell
298150 ANDREWS 490 LIFT N4 GRIND CAMS HARLEY SPORTSTER & BUELL 2000-PRES
item: 400292379701 and similar
Too add more confusion, have been told:
When fitting Andrews cams into a 2000 or newer XL you have to use 1991-1999 ones as there are no pinion gears made for 2000 and up XL/Buell ( red colour size), and so you must use the earlier pre 1999 ones - these must be used to stop engine whine.
Will be looking for some new or s/h heads or having mine ported in the future,( if I can find a suitable set - but again a little confusing which will fit and are the best for my bike)?
Any ideas/ recommendations/experiences appreciated!!
Have been recommended to get N4/8 (if they fit?) and possibly hand ported heads, although I believe the Buell thunderstorm heads are modified slightly already!
Contacted Andrews direct, but not having much joy. They state "the XB requires special order cams,the N4's are not the same part numbers as shown in our catalog for XL engines, but we can do any of our lobe profiles for an XB engine. The N4 would be best suited for 9.5-10.1 & N8 a 10:1 compression ratio.
Little confused as some listed on ebay state they are for sporster/ Buell
298150 ANDREWS 490 LIFT N4 GRIND CAMS HARLEY SPORTSTER & BUELL 2000-PRES
item: 400292379701 and similar
Too add more confusion, have been told:
When fitting Andrews cams into a 2000 or newer XL you have to use 1991-1999 ones as there are no pinion gears made for 2000 and up XL/Buell ( red colour size), and so you must use the earlier pre 1999 ones - these must be used to stop engine whine.
Will be looking for some new or s/h heads or having mine ported in the future,( if I can find a suitable set - but again a little confusing which will fit and are the best for my bike)?
Any ideas/ recommendations/experiences appreciated!!
