BHP am i looking at?

1. user_26188 Established Member Joined: Aug 2008 Durham Posts: 2094 Mk1 Vtr

   #1 17th September 2009, 13:55

   mk1 98 (black top is it?)
   Supersprint Race Exhaust System
   Janspeed 4-2-1 Exhaust Manifold
   K&N i91 or somthing like that
   
   and with the
   CatCams 4901101 fast road camshaft
   
   Thanks
2. col101 Frequent Poster Joined: Mar 2009 York Posts: 768 VTR

   #2 17th September 2009, 20:51

   10,000000bhp
   
   Take it on the rollers or you'll never know.
3. gouldy87 Saxperience Forum Bum Joined: Jun 2008 Posts: 3932

   #3 18th September 2009, 19:11

   1 million dollars
4. Liam_LFC_VTR Saxperience Forum Bum Joined: Mar 2009 N.Ireland Posts: 3523 French piece of shit. (VTR)

   #4 18th September 2009, 19:19

   Put lexus lights on and you're looking at 350bhp.
   
   On a serious note, RR is the only when you will find out tbh.
5. user_16990 Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS

   #5 18th September 2009, 19:34

   Lol.
   
   As said, stick it on the rollers buddy. Will give you a rough idea, but do note that rolling roads aren't the most accurate thing in the world.
   
   Also take into consideration an engine loses power as it clocks up the miles so it will be down on the 90 or 98 bhp that it had back in the day.
6. gouldy87 Saxperience Forum Bum Joined: Jun 2008 Posts: 3932

   #6 18th September 2009, 19:35

   Quote:

   Originally Posted by Finchowned Lol. As said, stick it on the rollers buddy. Will give you a rough idea, but do note that rolling roads aren't the most accurate thing in the world. Also take into consideration an engine loses power as it clocks up the miles so it will be down on the 90 or 98 bhp that it had back in the day.

   explain the engine power loss link with milage?
7. user_16990 Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS

   #7 18th September 2009, 19:46

   Quote:

   Originally Posted by gouldy87 explain the engine power loss link with milage?

   As an engine clocks up the miles, the engine and it's internal components begin to wear, become coked up, dirty and generaly worn out which equates to the engine not being as efficent as it initaly was.
   
   For example, the valves in the combustion chamber get coked up with carbon from the constant firing in the cylinders. The build up of carbon and crap on the valves means that they don't sit in the valve seats as tightly as they should, thus leading to a drop in pressure = drop in power.
   
   Injectors can become cloged up with small particles of dirt which can affect their spray pattern and flow rate which again causes a drop in power.
   
   As the pistons go up and down in the bores, the contact between the piston rings and the cylinder lining will slolwy wear the two parts down meaning that there isn't a tight seal in the combustion chamber which will cause a loss in pressure and a loss in power.
   
   These effects can be reduced by looking after the engine, letting it warm up properly, using good oil and changing the oil frequently as a way of reducing the effects from natural wear and tear in the engine.
   
   As a very, very basic and crude rule of thumb you could use the equation: Every 10k miles - 1Bhp. I.e. 70,000 mile VTS lump = 120 - 7 = 113Bhp.
   
   Hope that helps.
8. user_36970 Frequent Poster Joined: Aug 2009 walsall Posts: 670 two tone wheel barrow . 19" rim with a flat tyre.

   #8 18th September 2009, 22:56

   Quote:

   Originally Posted by Finchowned As an engine clocks up the miles, the engine and it's internal components begin to wear, become coked up, dirty and generaly worn out which equates to the engine not being as efficent as it initaly was. For example, the valves in the combustion chamber get coked up with carbon from the constant firing in the cylinders. The build up of carbon and crap on the valves means that they don't sit in the valve seats as tightly as they should, thus leading to a drop in pressure = drop in power. Injectors can become cloged up with small particles of dirt which can affect their spray pattern and flow rate which again causes a drop in power. As the pistons go up and down in the bores, the contact between the piston rings and the cylinder lining will slolwy wear the two parts down meaning that there isn't a tight seal in the combustion chamber which will cause a loss in pressure and a loss in power. These effects can be reduced by looking after the engine, letting it warm up properly, using good oil and changing the oil frequently as a way of reducing the effects from natural wear and tear in the engine. As a very, very basic and crude rule of thumb you could use the equation: Every 10k miles - 1Bhp. I.e. 70,000 mile VTS lump = 120 - 7 = 113Bhp. Hope that helps.

   so what happens if its 180bhp brand new
   afer 100k it will be 0bhp if you loose 18hp every 10k miles??????
9. user_36970 Frequent Poster Joined: Aug 2009 walsall Posts: 670 two tone wheel barrow . 19" rim with a flat tyre.

   #9 18th September 2009, 22:56

   Quote:

   Originally Posted by coalpoolwalla so what happens if its 180bhp brand new afer 100k it will be 0bhp if you loose 18hp every 10k miles??????

   sorry i didnt read it right it says 1bhp lmao
   
   apoligies
10. johnnyg_vts Established Member Joined: Dec 2006 Fleetwood Posts: 2244 2002 Saxo VTS

    #10 18th September 2009, 23:36

    dont engines sometimes get faster with age as they loosen up?
11. user_16990 Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS

    #11 18th September 2009, 23:39

    Quote:

    Originally Posted by coalpoolwalla sorry i didnt read it right it says 1bhp lmao apoligies

    As I said, that equation is just a very rough way of calculating power loss. Just use some common sense and a bit of logic
12. user_36970 Frequent Poster Joined: Aug 2009 walsall Posts: 670 two tone wheel barrow . 19" rim with a flat tyre.

    #12 18th September 2009, 23:41

    yeah its obvious its going to loose power with higher mileage.
13. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

    #13 18th September 2009, 23:54

    Quote:

    Originally Posted by coalpoolwalla yeah its obvious its going to loose power with higher mileage.

    as said in other posts if it cokes up its choked up, been running far to long valves dont seat, rings get sloppy compression drops = lose of touque and bhp
14. user_257 Saxperience Forum Bum Joined: Mar 2003 Kent Posts: 3994

    #14 18th September 2009, 23:56

    Quote:

    Originally Posted by rowza mk1 98 (black top is it?) Supersprint Race Exhaust System Janspeed 4-2-1 Exhaust Manifold K&N i91 or somthing like that and with the CatCams 4901101 fast road camshaft Thanks

    With a good remap around 120bhp.
15. user_16990 Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS

    #15 19th September 2009, 07:38

    Quote:

    Originally Posted by coalpoolwalla yeah its obvious its going to loose power with higher mileage.

    It is to some people, but a lot of people like to believe that their engine is some kind of mechanical miracle.
    
    140+bhp on a VTS/GTi with just breathing mods for example.
16. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

    #16 19th September 2009, 09:52

    Our customers have seen 13bhp gains with a supersprint race system and a performance manifold, K&N, you may gain 1 or 2 bhp. Camshaft is a mild upgrade. You will notice a difference but its only going to be up to about 5 bhp.
    It all adds up.
17. user_35337 Frequent Poster Joined: Jun 2009 Totland, Isle of wight Posts: 528 Saxo Westcoast

    #17 19th September 2009, 10:12

    So if you were to replace all the parts that get worn ovbs not the whole enignie but valves and rings and other bits that cause you to lose power do you theoretically get the power back?
18. saxvtr03 Infrequent Poster Joined: Sep 2009 Kent Posts: 179 Citroen Saxo VTR 03 reg Fiat Punto SX S reg (for

    #18 19th September 2009, 11:17

    a good service on a well looked after engine can usualy get ur full bhp bak..
19. user_16990 Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS

    #19 19th September 2009, 12:42

    Quote:

    Originally Posted by saxvtr03 a good service on a well looked after engine can usualy get ur full bhp bak..

    No it won't.
    
    Only way is to rebuild the engine. Rehone the bores, regrind the valves and valve seats, have the injectors replaced or professionaly cleaned, replace the piston rings etc.
    
    Costs a fair bit but deffo worth it.