Had the vts rolling roaded

1. bertie Infrequent Poster Joined: Apr 2007 swindon Posts: 115 vts W reg Silver

   #1 17th November 2007, 18:43

   hi had my vts rolling roaded today cars got a induction kik and a cat back it ran
   1st run 128.8@6705 max torque 109.6@5505
   
   2nd run 125.1@6754 max torque 108.5@5391
   
   3rd run 126.7@6833 max torque 109.4 5345
   
   wanted a figure to start with as iam getting cams in december cant wait
2. Bake Established Member Joined: Feb 2006 St Austell, United Kingdom (England) Posts: 1691 Ibiza Cupra

   #2 17th November 2007, 19:07

   Those results sound about spot on to me, what kind of power are you aiming for in the end?
3. bullit Saxperience Hardcore! Joined: Dec 2005 e-hollywood Posts: 17160 toyata hilux

   #3 17th November 2007, 19:14

   just make sure you stay on the same rr now and youll see all your gains
4. bertie Infrequent Poster Joined: Apr 2007 swindon Posts: 115 vts W reg Silver

   #4 17th November 2007, 19:21

   Aiming for 150-160bhp gonna get a decat, manifold,cams and pulleys and a dastex unichip, i will b sticking to 1 rolling road we dont have 1 round here for miles!
5. user_8040 Saxperience Post Whore Joined: Dec 2005 MaDchester Posts: 8432 Vts

   #5 17th November 2007, 19:26

   what filter and exhaust u got?
6. bertie Infrequent Poster Joined: Apr 2007 swindon Posts: 115 vts W reg Silver

   #6 17th November 2007, 19:51

   got a carbon enclosed one from halfords and i bought a cat back exhaust from ebay think its a scorpion 3"5 rolled in
7. Toad Saxperience Post Whore Joined: Mar 2007 Reading Posts: 8980 French tin can

   #7 18th November 2007, 02:13

   Max torque was a little high in the revs IMO. Should be around 5200...
8. bertie Infrequent Poster Joined: Apr 2007 swindon Posts: 115 vts W reg Silver

   #8 18th November 2007, 11:30

   Toad - What do you mean? I'm only goin by what was printed out on my graph.
9. Noddy Saxperience Forum Bum Joined: Mar 2007 Maidstone, Kent Posts: 4121 Mk2 Posi Blue 1.1

   #9 18th November 2007, 11:34

   Saxos IIRC are rev limited to around 5200 in 5th gear - thats whats he's refering to. Hence the question as to why it was doing an extra 1k rpm
   
   (or i've completely mis-interpreted the whole thing )
10. bertie Infrequent Poster Joined: Apr 2007 swindon Posts: 115 vts W reg Silver

    #10 18th November 2007, 11:43

    ah i see just looked on me dynamometer report and it says that it only used 4 gears
11. Noddy Saxperience Forum Bum Joined: Mar 2007 Maidstone, Kent Posts: 4121 Mk2 Posi Blue 1.1

    #11 18th November 2007, 11:46

    There you are then... Thats why
12. dannygti Saxperience Post Whore Joined: Feb 2006 dudley United Kingdom (England) Posts: 6790 106 gti/ SEAT LCR

    #12 18th November 2007, 11:47

    Quote:

    Originally Posted by Noddy Saxos IIRC are rev limited to around 5200 in 5th gear - thats whats he's refering to. Hence the question as to why it was doing an extra 1k rpm (or i've completely mis-interpreted the whole thing )

    you have mis-interpreted the whole thing.the vts revs to 7250rpm(standard) in any gear.
    
    most rolling roads test in fourth gear but some have to do it in third because the ratios of the car may give a too high a top speed.
13. Noddy Saxperience Forum Bum Joined: Mar 2007 Maidstone, Kent Posts: 4121 Mk2 Posi Blue 1.1

    #13 18th November 2007, 11:49

    Like I said in another thread - Sundays = stupid day for me - I'm going to work
14. jimbo06 Saxperience Forum Bum Joined: Mar 2006 Sunderland Posts: 3052 52 VTS, 172 Cup

    #14 18th November 2007, 12:35

    yeh those figures sound about right, well done mate
15. bertie Infrequent Poster Joined: Apr 2007 swindon Posts: 115 vts W reg Silver

    #15 18th November 2007, 13:49

    thanks
16. Toad Saxperience Post Whore Joined: Mar 2007 Reading Posts: 8980 French tin can

    #16 18th November 2007, 13:55

    It shouldn't make much difference doing it in different gears. You will find that the high gears will tend to give you a higher flywheel figure, whereas the lower gears will give you a higher wheel figure.
    
    Bertie, I'm not too sure how else to explain it. The VTS should produce its maximum torque at 5200 rpm. Unless you have changed the characteristics of the engine, I woludn't expect it to stray from there by much at all. I suppose an exhaust sytem could affect it a little, but not by much. The first reading is not right at all. It may have been a little spike or something. Check the graph for the first reading, you might see a little spike for the torque where it's been suggested that it's at its maximum.
    
    The power figures are good, and quite realistic. Notice the torque reading. The engine as standard, produces 107 lb/ft of torque, so thats pretty much spot on. Just where it's actually producing it doesn't seem quite right. To put things into perspective, I have different cam shafts to you, I'm using Catcam 708s, which move the power band up in the rev range a fair bit. I produce my maximum torque at around 5500 rpm now, as opposed to 5200.