Forged Pistons?

1. Yates Saxperience Hardcore! Joined: Mar 2005 Pompey/Darlo Posts: 31546 MK1 - 1.1 Animal

   #1 14th February 2007, 11:15

   Its me again and asking more questions!
   
   How much?
   Remap needed?
   BHP expected?
   Worth it?
2. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #2 14th February 2007, 12:19

   is this on a N/a engine. If so you won't see any gains.
   
   They are just stronger than normal pistons which allows you to do other things.
3. Colin Saxperience Forum Bum Joined: Jan 2006 Banbury Posts: 4623 Saxo Rally Car Evo 6

   #3 14th February 2007, 12:57

   You would need high comp, rebated pistons with T/ bodies and wild cams.
4. Sean Saxperience Post Whore Joined: Feb 2005 St Andrews United Kingdom (Scotland) Posts: 7384 Green mk1 vtr/s and Focus zetec

   #4 14th February 2007, 13:37

   As above really Matt, make sure you get high compression ones which are also rebated so the valves don't hit the pistons. You will see slight gains as the compression is raised, as for remap just get eveything at once then have it mapped altogether.oh and gmc sell them.
5. Mysticp Scotland Joined: Jul 2005 Edinburgh Posts: 9556 Saxo 1.6i 16v VTS, 2 Classic Minis

   #5 14th February 2007, 13:42

   There not some difference between high comp pistons & low comp depinging whether your going Boosted or NA?
6. Yates Saxperience Hardcore! Joined: Mar 2005 Pompey/Darlo Posts: 31546 MK1 - 1.1 Animal

   #6 14th February 2007, 14:12

   im thinking of going big valve head and kms now
7. Scottp Administrator Joined: Dec 2002 Glasgow United Kingdom (Scotland) Posts: 26097 Chelski Traktor

   #7 14th February 2007, 14:20

   Quote:

   Originally Posted by Mystic There not some difference between high comp pistons & low comp depinging whether your going Boosted or NA?

   Yes, boosted low comp, N/A high comp
8. Colin Saxperience Forum Bum Joined: Jan 2006 Banbury Posts: 4623 Saxo Rally Car Evo 6

   #8 14th February 2007, 14:21

   A higher compression brings more air in too.
   
   I think its definately worth it if you are serious about tuning it N/A. The motor would rev better combined with High Comps, Forged Rods, Balanced Crank and Blue Printed bottom end. It would be bullet proof too.
   
   Naturally horsepower will be increased.
   
   The difference in Low comps and High comps is the piston skirt. Low comps skirts are shorter and visa virca. Low comps for boosted motors and high for N/A.
   
   I think the big valve head, standalone and whatever your choice of cams Matt is a better bang for you buck.
9. CampDavid Saxperience Post Whore Joined: May 2006 Bedford Posts: 7457 Saxo VTS Peugeot 306 GTI-6 Astra SRI

   #9 14th February 2007, 14:28

   NIce Manifold Col
   
   No need for these unless you are planning big cams and throttle bodies
10. Colin Saxperience Forum Bum Joined: Jan 2006 Banbury Posts: 4623 Saxo Rally Car Evo 6

    #10 14th February 2007, 14:30

    Quote:

    Originally Posted by CampDavid NIce Manifold Col No need for these unless you are planning big cams and throttle bodies

    Cheers Dave! Its very good! Thanks again.
    
    I agree with you there too. Its very expensive aswell.
    
    The super 1600s no doubt use them because they need all the help they can get to rev to 9.5k rpm!!!
    
    No power below that mind.....
11. Ryanp Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut

    #11 14th February 2007, 16:21

    if your going forgies may as well get decent rods while your at it, chuck some mad cams in on tbs and have a 9k screamer
12. bullit Saxperience Hardcore! Joined: Dec 2005 e-hollywood Posts: 17160 toyata hilux

    #12 14th February 2007, 17:38

    lol, as said really only needed with wilder cams. 809s+
13. Ryanp Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut

    #13 14th February 2007, 17:39

    think ian is running forgies on his 803s irc..
    
    he wants 300 degree ones now the nutter
14. bullit Saxperience Hardcore! Joined: Dec 2005 e-hollywood Posts: 17160 toyata hilux

    #14 14th February 2007, 17:42

    did you see that engine on ebay the other day that had pt54s on. buy now 4800 or near offer
15. Ryanp Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut

    #15 14th February 2007, 17:51

    Quote:

    Originally Posted by bullit did you see that engine on ebay the other day that had pt54s on. buy now 4800 or near offer

    the one by the subaru company??
    
    with something daft like 50mm TBs??
    
    wasnt to impressed tbh.
16. bullit Saxperience Hardcore! Joined: Dec 2005 e-hollywood Posts: 17160 toyata hilux

    #16 14th February 2007, 17:59

    didnt see who made it but the trumpets did seem massive
17. Ryanp Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut

    #17 14th February 2007, 18:00

    yep all seemed a bit of a mismatch of parts tbh. i think john saw it on ssc and laughed.
18. Cupra-Craig Established Member Joined: Sep 2006 Posts: 1979

    #18 14th February 2007, 19:56

    Ha ha ihave these matt just buy my engine!!
19. Yates Saxperience Hardcore! Joined: Mar 2005 Pompey/Darlo Posts: 31546 MK1 - 1.1 Animal

    #19 15th February 2007, 08:28

    im still waiting for a price for your engine, put in your thread pm me...