Best matched manifold to VTR engine? In your opinion?

1. AS_BO Infrequent Poster Joined: Jun 2013 Washington Tyne & Wear Posts: 210 Ph2 VTR

   #1 20th August 2013, 10:17

   As above - am I better getting a 4-2-1 or a 4-1 for the VTR? Based off the natural characteristics of the engine. In your experience which does it benefit more from?
2. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #2 20th August 2013, 18:02

   It really does not matter. You have a 4-1 manifold. Piper make a nice 4-1 stainless replacement. You can also fit a Supersprint 4-2-1. You will get similar power from both and they will last longer than your car.
3. AS_BO Infrequent Poster Joined: Jun 2013 Washington Tyne & Wear Posts: 210 Ph2 VTR

   #3 20th August 2013, 22:53

   Ah right - so no real difference in peak power or torque then? Would it make any difference if it was going on a cammed engine? I'm planning on sticking one of your fast road cams in so any other suggestions for a matched system?
4. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #4 21st August 2013, 15:34

   the issue is that the tuned lengths of these exhausts is compromised by the space in the standard enginebay and the fact these off the shelf designs have to match to a standard exhaust system.
   
   If you were making a full custom one then you might notice a difference...