whats better?

1. lineo444 Regular Poster Joined: Mar 2007 Mansfield / huddersfield. Posts: 295 106 gti

   #1 25th April 2007, 13:21

   ok my m8 has just fitted a 4-2-1 to his 8v rallye and its awsome but whats better for a 8v vtr? 4-2-1 or 4-1 obviously there is a differnce otherwise they wouldnt make two differnt types but whats the benifits of both? i am lookin to upgrade very soon. cheers.
2. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #2 25th April 2007, 13:40

   on an otherwise standard engine I would use a 4-2-1
3. VTS_16v_Boy Saxperience Post Whore Joined: Aug 2006 Dartford Kent Posts: 5251 Pug 1007 HDi Sport (daily) / Abarth 500

   #3 25th April 2007, 13:43

   The 4-2-1 gives more low down torque than the 4-1
   
   For the 8v Id say the 4-2-1 but for the 16v where the power comes in higher up then the 4-1 which aids more mid to high rev range gains.
   
   www.Kam-Racing.com do some really good deals on RaceLand items, pm them and see what they can offer
4. lineo444 Regular Poster Joined: Mar 2007 Mansfield / huddersfield. Posts: 295 106 gti

   #4 25th April 2007, 17:46

   cheers thanks for that..
5. Gavtr Infrequent Poster Joined: Feb 2007 Nuneaton Posts: 153 Saxo VTR

   #5 26th April 2007, 10:32

   i have a 4 2 1 and it seems to pull harder i like it any way
6. VTS_16v_Boy Saxperience Post Whore Joined: Aug 2006 Dartford Kent Posts: 5251 Pug 1007 HDi Sport (daily) / Abarth 500

   #6 26th April 2007, 10:40

   I think im rite in thinking that the OE factory item on the S anyway is of a 4-2-1 design but the cast iron unit is heavy and restictive compaired to an aftermarket item.
7. Scottp Administrator Joined: Dec 2002 Glasgow United Kingdom (Scotland) Posts: 26097 Chelski Traktor

   #7 26th April 2007, 12:07

   standard vts item is a 4-2-1 and is actually not to shabby a design, on the other hand the 8v manifolds are pretty poor as is the whole standard exhaust system on the 8v'ers
8. MaRiO89 Saxperience Post Whore Joined: Jan 2007 Posts: 7705 Saxo VTS

   #8 26th April 2007, 12:33

   4-2-1 gives more low to mid range power.
   4-1 gives more mid to high range power.
   
   If you want a more torquey feel to the engine get a 4-2-1 but if you drive your car everywhere at 5000rpm or higher then get a 4-1.
   
   It has nothing to do with whether your car is 16v or 8v, all petrol engines produce most of their power high up in the revs so you want to capitalise on that if its driven @ its max power all the time therefore getting a 4-1.
   
   James
9. VTS_16v_Boy Saxperience Post Whore Joined: Aug 2006 Dartford Kent Posts: 5251 Pug 1007 HDi Sport (daily) / Abarth 500

   #9 26th April 2007, 14:25

   If you was on a budget or wasnt too bothered about brands etc then there is more of a selection in the 4-2-1 range with RaceLand/Sportex/Janspeed/GMC/SuperSprint/Milltek where as only (as far as I know) GMC and Piper making a 4-1 for the Saxo's and I think the Piper Item is 16v only.
   
   Dont quote me on that but Im 99% sure.