Kent Camshafts...

1. Jay_VTR Frequent Poster Joined: Jan 2006 Devizes, Wiltshire Posts: 750 Black VT. Slag. Black S1 Rallye. Clio 172 Cup.

   #1 10th January 2007, 17:45

   Hi, i was on www.larkspeed.com and was looking at the camshafts and came came across these two.
   
   Blacktop (Non rolling)
   http://www.larkspeed.com/index.pl?p=391CT11&a=i
   
   Silvertop (Rolling type)
   http://www.larkspeed.com/index.pl?p=391CT3040&a=i
   
   The prices were £399 for the non-rolling type and £215 for the rolling type.
   Just wondering why the Rolling type is so much cheaper???
   
   Power Band 2000>6500 - Rolling rocker
   Power Band 2000>6000 - Non rolling
   
   Thanks,
   
   Jamie
2. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

   #2 10th January 2007, 17:54

   I think the only reason for this could that the non roller is for the old black top mk1 engine and not many of these are about these days but there is plenty of sales on the rolling rocker type as thats generally the mk2 engine and probably buy more of them
3. Jay_VTR Frequent Poster Joined: Jan 2006 Devizes, Wiltshire Posts: 750 Black VT. Slag. Black S1 Rallye. Clio 172 Cup.

   #3 10th January 2007, 18:01

   Hmm i just got an e-mail back from Larkspeed...They said its because they supply hydraulic lifters with the kit for the blacktop as the silvertops already have them
4. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

   #4 10th January 2007, 18:03

   well i was just having a stab in the dark but thats alot for lifters i think gmc do follower kits for less than a £100
5. Jay_VTR Frequent Poster Joined: Jan 2006 Devizes, Wiltshire Posts: 750 Black VT. Slag. Black S1 Rallye. Clio 172 Cup.

   #5 10th January 2007, 18:05

   Oh rite, maybe theres another reason as well then...
6. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

   #6 10th January 2007, 18:06

   No i was wrong the lifters are alot in gmc why dont you get a piper if you need the non roller type i didnt get any followers for myn the standard ones are fine ive been told on more than 1 occassion by good tuneing garages
7. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

   #7 10th January 2007, 18:11

   not sure what the hydraulic lifters would make a difference really or what they are even for ask them a few more questions for the reasons to why you need hydraulic lifters and what it will do to help performance
8. saxo_vtr1234 Established Member Joined: Apr 2006 cambridge United Kingdom (England) Posts: 1208 saxo vtr silver

   #8 10th January 2007, 20:04

   mk2 kit is the one iam going to order at thw weekend seemed good value
9. Jay_VTR Frequent Poster Joined: Jan 2006 Devizes, Wiltshire Posts: 750 Black VT. Slag. Black S1 Rallye. Clio 172 Cup.

   #9 10th January 2007, 20:06

   Yeh it does, i wouldnt mind getting one. Just the re-map going to cost a bit! What sort of gain would this camshaft produce?
10. saxo_vtr1234 Established Member Joined: Apr 2006 cambridge United Kingdom (England) Posts: 1208 saxo vtr silver

    #10 11th January 2007, 18:23

    without re-map not alot if any mate and your looking 400-450 for re map
11. Jay_VTR Frequent Poster Joined: Jan 2006 Devizes, Wiltshire Posts: 750 Black VT. Slag. Black S1 Rallye. Clio 172 Cup.

    #11 11th January 2007, 18:25

    Ye would re-map if i got a new camshaft....
12. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

    #12 11th January 2007, 18:47

    I got a remap done for £290 plus vat at automark in stokesly teeside im currently running around 120bhp have a few little things i need to sort and possibly will be running a hell of alot more maybe close to 130 as i still need to get some fueling issue's sorted also he was going to tweak my valve timing aswell
13. saxo_vtr1234 Established Member Joined: Apr 2006 cambridge United Kingdom (England) Posts: 1208 saxo vtr silver

    #13 11th January 2007, 18:52

    is that closer than mancester from cambridge
14. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

    #14 11th January 2007, 19:25

    Id say your atleast a 3.5 hour drive from teeside and probably around a 2 hour drive to manchester
15. saxo_vtr1234 Established Member Joined: Apr 2006 cambridge United Kingdom (England) Posts: 1208 saxo vtr silver

    #15 11th January 2007, 19:28

    manchester it is
16. AlexR Saxperience Post Whore Joined: Aug 2004 Kunt & Sorrey Posts: 5763 Rep mobiles & Joes ma

    #16 11th January 2007, 19:49

    you can get them without the lifters if you get a catcam or a piper cam, cost is around £250ish iirc
    blacktops take cams well as the valve springs are much harder so can deal with higher rev limits better, just adjust the clearances to what the cam maker specifies.
17. saxo_vtr1234 Established Member Joined: Apr 2006 cambridge United Kingdom (England) Posts: 1208 saxo vtr silver

    #17 11th January 2007, 20:04

    i fort that was a mif about the valve springs
18. AlexR Saxperience Post Whore Joined: Aug 2004 Kunt & Sorrey Posts: 5763 Rep mobiles & Joes ma

    #18 11th January 2007, 20:14

    no it's not, blacktops have better springs than silvertops. fact