Tu5jp4

1. Ali123 Saxperience Forum Bum Joined: May 2011 huddersfield Posts: 2635 ph3'd c2 gt

   #1 1st August 2015, 13:14

   Afternoon peoples!
   Just a quick one, roughly what power can these engines "safely" take on standard internals? In guessing round the 200 or so mark?
   
   Cheers !
2. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

   #2 1st August 2015, 14:25

   what do you mean by "take" ?
   
   standard crank and rods are good for 180 in a single throttle C2R2 rally car application, with a completely reworked head with double springs solid tappets and long duration cams, light slipper type high compression pistons, standard JP4S inlet, very long primary exhaust manifold.
   
   on itb's you might get nearer 200 with a similar sum of parts, go forged rods and wilder cams and you'll go nearer 230+
3. user_39461 Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.

   #3 2nd August 2015, 09:11

   Standard rods with arp bolts good for 300hp. Standard crank good for 500hp+
   
   Everything else needs changing at those levels obviously. Clutch is generally the first point of weakness - it's barely good enough for stock power.
4. Ali123 Saxperience Forum Bum Joined: May 2011 huddersfield Posts: 2635 ph3'd c2 gt

   #4 2nd August 2015, 16:28

   cheers for the replies people, i was asking because after me holiday im gonna have to invest in a wizards of nos nitrous set up, but just cant make my mind up on what "bhp shot " to go for..
   currently the car makes 155bhp ish and i was thinking of going for a 50bhp shot but just wasnt sure if the internals could withstand 200ish ?