higher reving

1. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

   #1 21st May 2010, 00:33

   what is needed to allow a vts engine to rev higher?
   
   is it just head work such as springs and followers, and lightened/balanced crank and low/high comp pistons?
2. user_43116 Frequent Poster Joined: Mar 2010 Oswestry Shropshire/Wrexham, North Wales Posts: 506 Mk1 Silver VTR

   #2 21st May 2010, 00:45

   And you will need the rev limit raised on the ecu i beleive
3. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

   #3 21st May 2010, 00:49

   will be going stand alone ecu mate so that wouldnt be a problem just wanted to know if i would e able to rev higher if i upgrated to low comp pistons and rods and got my crank done
   
   will be getting a turbo cam with uprated valves and springs and followers if they need changing too
   
   would i be able to rev to 8k with all this being upgraded?
4. user_9396 Established Member Joined: Apr 2006 torquay (England) Posts: 1993 supercharged vts. 1.1 saxo. accord type r

   #4 21st May 2010, 00:51

   no, any higher than 7800 and you wanna be looking at solid lifters m8,
   the pistons and stuff will help tho.
5. user_43116 Frequent Poster Joined: Mar 2010 Oswestry Shropshire/Wrexham, North Wales Posts: 506 Mk1 Silver VTR

   #5 21st May 2010, 00:55

   I would also consider rods and big end bolts.
6. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

   #6 21st May 2010, 01:13

   yeah i did say in my 2nd post that i would upgrade pistons and rods
   
   how much would solid lifters be?
7. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

   #7 21st May 2010, 01:15

   not to worry just been looking on hiflowheads at prices
   
   what are they like? as i may get them to do my head get it all race prepped by them so my car could stably rev to 8k
8. user_43116 Frequent Poster Joined: Mar 2010 Oswestry Shropshire/Wrexham, North Wales Posts: 506 Mk1 Silver VTR

   #8 21st May 2010, 08:52

   http://www.saxperience.com/forum/showthread.php?t=74331
   
   They seem to have mixed reviews...i have never had any dealings with them so i cant comment sorry
9. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #9 21st May 2010, 10:36

   To fit solid lifters and cams, thats probably near on £2k
   Then you will need to work out whether the rods and crank can take the strain..
   
   Forget Highflow..you want an engine builder with plenty of experience building track and race engines. I suggest a call to GMC for starters..
   Its probably a good idea to know why you want to rev higher. If your cam choice is still producing power above the current limit then certainly. Otherwise you need to change gear...
10. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

    #10 21st May 2010, 11:20

    was thinking to use a gt25-28 turbo and thought it would boost past the normal 7k'ish mark?
11. user_9396 Established Member Joined: Apr 2006 torquay (England) Posts: 1993 supercharged vts. 1.1 saxo. accord type r

    #11 21st May 2010, 11:29

    Quote:

    Originally Posted by Pug106-GTI was thinking to use a gt25-28 turbo and thought it would boost past the normal 7k'ish mark?

    i am pretty sure that that turbo is fine with the normal rev limit m8, im sure it dies off before 7250, someone correct me if im wrong
12. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

    #12 21st May 2010, 11:30

    ah ok then mate no worries, do you know roughly what kinda revs the gt25 cuts in at all mate?
13. Krys_23 Saxperience Post Whore Joined: Aug 2007 Posts: 6543

    #13 21st May 2010, 11:50

    My 8valve was cammed and it revved to 7,700rpm
14. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

    #14 21st May 2010, 12:01

    Quote:

    Originally Posted by KamRacing To fit solid lifters and cams, thats probably near on £2k Then you will need to work out whether the rods and crank can take the strain.. Forget Highflow..you want an engine builder with plenty of experience building track and race engines. I suggest a call to GMC for starters.. Its probably a good idea to know why you want to rev higher. If your cam choice is still producing power above the current limit then certainly. Otherwise you need to change gear...

    +1
15. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #15 21st May 2010, 13:52

    They rev to 7800 ish fairly happily. Theres not a great deal of power up there though i would concentrate on trying to get the power lower down rather than having an engine that gets peak power on the verge of throwing a rod
16. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

    #16 21st May 2010, 14:00

    lol thats fair enough mate
    
    can standard 106gti ecu be remapped/tweaked?
    
    as its going to be put on a rolling road soon and get an afr print out so i was going to get them to sort the fueling out if its running a little on the lean side?
17. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #17 21st May 2010, 14:53

    Yeah the standard ecu can be tweaked. I got 5bhp and 5lbf extra
18. Pug106-GTI Frequent Poster Joined: Apr 2010 Kent Posts: 755

    #18 21st May 2010, 23:57

    cool maybe they can tweak my ecu to give a little gain with my breathing mods? lol