Engine & Gearbox TDI North & Tegiwa Manifold Test/Review (DC5)

Discussion in '4th Generation (2002-2006) [Acura RSX]' started by Dan2020civic, Sunday 22nd May, 2011.

  1. Dan2020civic Club Veteran ★ ★ ★ ★ ★

    **If this is not the best place for this please move it**

    Had a chat with Luke from Tegiwa at Japfest after seeing there latest manifold (Toda copy) for the K20 that has been produced to a much higher standard than the previous offering I decided to bite the bullet. They needed a test car to try it on and get a dyno reading, so a deal was made and the following Friday (20th May) off I went to TDI North to have a few bits done with the manifold at the same time.

    All in all I was having a port matched RBC with Buddyclub P1 70mm throttle body fitted (that I already had waiting), the Tegiwa manifold and K100. I already had a Mugen airbox and a Buddyclub Spec 3 exhaust system on the car.

    As you can see from the following photos, the latest Tegiwa manifold has much better welds that are all back purged, made from better steel, has a better finish and a larger flexi section.

    New Tegiwa Manifold:


    Old Tegiwa on the left and there new one on the right:


    New Tegiwa on the left and the old one on the right:


    New one:


    Old one:


    Finally, the new one on the car fitted by Ben and Neil @ TDI:



    Onto the rest of the work!!

    Ben at TDI fitting the RBC and 70mm t/b:



    On to the rollers for Paul @ TDI to work his magic:




    And finally the result!! A healthy 251.9bhp & 174.7lbft of torque!! VTEC now kicks in at 3700rpm if I plant the throttle or just under 4500rpm part throttle, making this a completely different animal to drive! \:Grin:/


    Forgot to mention the Spec 3 with the manifold has now left me deaf, ear plugs are a must!! :lol:

    Big thanks to all the guys at TDI especially Ben, Neil and Paul as they didn't finish mapping my car till gone 8:30pm on a Friday evening!! :xcheers:

    Thatnks to Luke @ Tegiwa for suppling the manifold!!
  2. kashep3 Junior Member ☆ ☆ ☆ ☆ ☆

    sounds lovely mate, good figures too! Are the bends on the header mandrel bent tho?
  3. si8pny Club Veteran ★ ★ ★ ★ ★

    Nice some real good gains there
  4. H_EE9VTT Senior Member ★ ★ ☆ ☆ ☆

    Very impressive!
  5. ckh Club Member ★ ☆ ☆ ☆ ☆

    how much is it?
  6. TEGIWA Top Contributor ★ ★ ★ ★ ☆

    £460 delivered
  7. EG-nath Club Veteran ★ ★ ★ ★ ★

    shame that this test doesnt really do the manifold justice though, too many other mods added at same time to say what improvement it made?
  8. tanabe Top Contributor ★ ★ ★ ★ ☆

    United Kingdom tanabe looe cornwall
    nice power not a bad price ither
  9. markcivic1981 Club Veteran ★ ★ ★ ★ ★

    As mentioned above, its not really a test for just the manifold. is it a complete copy of the toda one? ie: evey things the same, bends, lengths,tapers,steel type?
  10. Dan2020civic Club Veteran ★ ★ ★ ★ ★

    If the manifold was not helping make power you definately wouldn't break the 250bhp mark with just bolt ons.