bhp difference

1. ax90vtr Newbie Joined: May 2009 Posts: 25

   #1 10th January 2010, 20:39

   does any one no where the extra 8 bhp comes from on the later vtr 8 valve engine, the one with 3 plug ecu
2. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #2 10th January 2010, 20:42

   From the Different head/inlet i'd presume.
3. Daniel09 Established Member Joined: Jul 2009 N.wales! Posts: 1024 slammed VTS

   #3 10th January 2010, 20:44

   combo of the head, inlet and std map.. the newer engine was re-developed in 2000
4. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

   #4 10th January 2010, 20:47

   Its a very different engine they made tones of changes. If your looking for a bit or two you can simple bolt on a early engine to bring it up to later spec forget it.
5. Daniel09 Established Member Joined: Jul 2009 N.wales! Posts: 1024 slammed VTS

   #5 10th January 2010, 20:50

   tbf drove a few saxo 8v's and there quet a difference between the new and old engine..
   
   id be interested in seing a full spec sheet of what exactly changed
6. miamibluebaby Established Member Joined: May 2009 Ellesmere (Shropshire) Posts: 1044 superchared 106 gti

   #6 10th January 2010, 20:56

   the rockers changed from solid rockers to roller rockers, the inlet port spacing is different, exhaust setup is different, different map/managment, iirc softer valvesprings??
   
   there are quite a few differences, id personally say the black top engine is the one id choose purley because you can interchange 106 rallye/xsi bits eaisly
7. ax90vtr Newbie Joined: May 2009 Posts: 25

   #7 10th January 2010, 20:59

   me too i have a couple of saxo vtr engines lying around 1 is a mk 1 ones a early silver top and other is a late silver top engine and if the block/ stroke piston size all the same then surley a mk1 engine could get 98hp using 3 plug ecu and all bolt ons ie inlet mani sensers etc ????????????
8. ax90vtr Newbie Joined: May 2009 Posts: 25

   #8 10th January 2010, 21:03

   not as easy as i thought then thanks toall and miamiblueboy
9. birchybalboa Regular Poster Joined: Sep 2009 Ludlow, Shropshiree Posts: 368 Mk1 Grey VTS

   #9 10th January 2010, 23:32

   sorry if this is off the topic... but what are the diffrences between the 90bhp black top and 90bhp silver top???
10. Sparco_Tom Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta

    #10 10th January 2010, 23:34

    the head and its internals, inlet, cam, type of coilpack

    1 user thanked this post: birchybalboa
11. VTSTomE Established Member Joined: Apr 2008 Hereford Posts: 1381 Indigo 16v Rallye + 2 VTS's

    #11 10th January 2010, 23:51

    Just get a blacktop and run rallye/xsi head and s1 inlet will see surely 105ish?
12. Sparco_Tom Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta

    #12 10th January 2010, 23:59

    yup thats the best thing to do, or even fit a different cam at the same time
13. birchybalboa Regular Poster Joined: Sep 2009 Ludlow, Shropshiree Posts: 368 Mk1 Grey VTS

    #13 11th January 2010, 00:01

    ive got a 90bhp silvertop but as its 90bhp what mpg am i lookin at roughly accordin to parkers bcus there is about 8mpg differance between the two.. noob question i know jus confused between it