Expected power gains?

1. fredjudd Established Member Joined: Aug 2006 Salisbury Posts: 1118 Saxo VTR full Janspeed exhuast (4-2

   #1 14th September 2006, 00:06

   Right basically at the mo I have Janspeed manifold back exhuast system with the de cat.
   
   I am planning on a Janspeed manifold next week along with a 275/285 cam along with a remap.
   
   Anyone else got similar mods and like to share the RR figues? I rekon it will be around 125 bhp? Sound about right? Im new to all this guessing shiz
2. jezpick Regular Poster Joined: Sep 2006 Notts Posts: 280 mk 2 1.1 sax

   #2 14th September 2006, 01:13

   Quote:

   Originally Posted by fredjudd Right basically at the mo I have Janspeed manifold back exhuast system with the de cat. I am planning on a Janspeed manifold next week along with a 275/285 cam along with a remap. Anyone else got similar mods and like to share the RR figues? I rekon it will be around 125 bhp? Sound about right? Im new to all this guessing shiz

   
   first off i think you need to decided what mods you actually have!!!
   
   but anyway, im guessin you've got the 98bhp VTR, so lets say you have the manifold, then whack a cam in it and get a re-map (which will set you back bout £900 just for the cam, fitting, and a re-map) your looking at about 115bhp 120bhp absolute max matey! should keep with a standard VTS JUST, get yourself a green enclosed induction kit to go with it and then your keepin up with the VTS's hope this helps!
3. fredjudd Established Member Joined: Aug 2006 Salisbury Posts: 1118 Saxo VTR full Janspeed exhuast (4-2

   #3 14th September 2006, 01:32

   My current exhuast system is from the manifold back. So the only standard bit of the exhaust is the manifold.
   
   I will be fitting the cam myself so its really just the cost of a remap and a RR day.
   
   100 bhp standard
   
   Decat gives me 5
   Manifold and rest of exhuast another 5.
   
   Is it alot to expect 15 bhp from a cam and remap then?
4. rosebud Newbie Joined: Nov 2005 stoke Posts: 24

   #4 14th September 2006, 08:16

   ive got 138 bhp at the flywheel but thats from spending about 3k thats from modified cam and the like.only problem is wont pass m-o-t now what with the cam and no cat.ive got an understanding garage though.
5. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

   #5 14th September 2006, 09:18

   5 hp from a decat????
6. RIBstaff Established Member Joined: Jun 2005 Stafford United Kingdom (England) Posts: 1585

   #6 14th September 2006, 15:37

   Just to give you an idea: my old vtr with a scorpion full decatted system, supersprint manifold 4-2-1, viper induction an iridium plugs gained 17bhp from a 90bhp mk1. I think yours will be pushing if the 98bhp an with all mods stated around 127bhp
7. RIBstaff Established Member Joined: Jun 2005 Stafford United Kingdom (England) Posts: 1585

   #7 14th September 2006, 15:37

   Plus imo you would be lucky to see 3bhp from a decat
8. jezpick Regular Poster Joined: Sep 2006 Notts Posts: 280 mk 2 1.1 sax

   #8 14th September 2006, 17:13

   Quote:

   Originally Posted by rosebud ive got 138 bhp at the flywheel

   under your avatar it says 137bhp at the fly!
9. jezpick Regular Poster Joined: Sep 2006 Notts Posts: 280 mk 2 1.1 sax

   #9 14th September 2006, 17:15

   Quote:

   Originally Posted by fredjudd My current exhuast system is from the manifold back. So the only standard bit of the exhaust is the manifold. I will be fitting the cam myself so its really just the cost of a remap and a RR day. 100 bhp standard Decat gives me 5 Manifold and rest of exhuast another 5. Is it alot to expect 15 bhp from a cam and remap then?

   firstly, they only come with either 98bhp or 90bhp standard not 100bhp stop tryin to claim 2 extra break and secondly, you will NO WAY get 5 horses from a decat.
10. rosebud Newbie Joined: Nov 2005 stoke Posts: 24

    #10 14th September 2006, 17:48

    Quote:

    Originally Posted by jezpick under your avatar it says 137bhp at the fly!

    yep thats right but just had throttle body ported so maybe give me i more bhp.but to be honest cant realy feel any difference.
11. fredjudd Established Member Joined: Aug 2006 Salisbury Posts: 1118 Saxo VTR full Janspeed exhuast (4-2

    #11 14th September 2006, 18:23

    Ok I stand corrected. I can see the only way to solve this will be a RR day. Thanks for the help! Ill keep you posted.
12. stiffler69 Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289

    #12 14th September 2006, 19:28

    i have a piper 285 cam 4-2-1 manifold, full decat system from manifold back, enclosed induction carbon fibre, and remapped not sure on bhp fiqures but i would think it would be around the 120bhp mark, make sure you know how to set the cam timing up cause i just had to get my done today costing me another £70
13. fredjudd Established Member Joined: Aug 2006 Salisbury Posts: 1118 Saxo VTR full Janspeed exhuast (4-2

    #13 14th September 2006, 19:56

    Yer I had been expecting to have to pay another 50 to 100 quid for a remap
14. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

    #14 14th September 2006, 21:49

    50 - 100 for remap??? i wish......
15. RIBstaff Established Member Joined: Jun 2005 Stafford United Kingdom (England) Posts: 1585

    #15 14th September 2006, 22:32

    Try 500
16. fredjudd Established Member Joined: Aug 2006 Salisbury Posts: 1118 Saxo VTR full Janspeed exhuast (4-2

    #16 14th September 2006, 22:35

    Argh Im all confused, I have been looking at re mapable ECUs where companys charge around 70 quid an hour to tinker on the RR. Thats where my figure came from.
    
    But as I understand re mapable ECUs are forking expensive aswell. Ya?