« previous next »
Pages: 1 [2]

Author Topic: Exhaust manifolds.  (Read 771 times)

Offline John Hartman

  • Senior Member
  • Hero Member
  • *
  • Posts: 17539
Re: Exhaust manifolds.
« Reply #15 on: February 10, 2012, 07:12:03 am »
what Richard said.  Thats why we don't use straigth cut gears much anymore.  They are noisy.
Logged
91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline Matt Vangaalen

  • Sr. Member
  • ****
  • Posts: 403
  • VangaBuilt
Re: Exhaust manifolds.
« Reply #16 on: February 10, 2012, 10:31:40 am »
Hmm...thanks Richard! Guess ill get the stethescope out again this weekend. Sounds like your on to somthing. The sound comes and goes but is definite at 3000 rpm then quiets down higher up.
Logged
6 bolt short block (.02 over evo9 pistons). Straight cut oil pump gears. Ported 2g head and manifolds, GSC S1 cams(adjustable gears), undercut SS valves, bronze guides, Manley springs. Fp's Big T28, stock 02 into 2.5 downpipe, 3" from the flex section back. Apex'i N1 muffler. ETS fmic. 1g bov. 1g throttle body. 255lph pump. 660cc injectors. AFPR. SD on Link V3. 345 ft lbs 345 hp.

Offline Matt Vangaalen

  • Sr. Member
  • ****
  • Posts: 403
  • VangaBuilt
Re: Exhaust manifolds.
« Reply #17 on: February 10, 2012, 11:10:53 am »
Sorry to steal ur post Brent but thanks for the input guys. The idea behind the straight cuts were to prolong case life as my old case was worn past tolerance and also to improve pressure. Guess I'm gonna live with the sound. Now I can sleep again :D
Logged
6 bolt short block (.02 over evo9 pistons). Straight cut oil pump gears. Ported 2g head and manifolds, GSC S1 cams(adjustable gears), undercut SS valves, bronze guides, Manley springs. Fp's Big T28, stock 02 into 2.5 downpipe, 3" from the flex section back. Apex'i N1 muffler. ETS fmic. 1g bov. 1g throttle body. 255lph pump. 660cc injectors. AFPR. SD on Link V3. 345 ft lbs 345 hp.

Offline Brent Hunter

  • Sr. Member
  • ****
  • Posts: 405
  • No shit, 4g63
Re: Exhaust manifolds.
« Reply #18 on: February 10, 2012, 01:01:48 pm »
Not a problem Matt, I got the answers I needed
Logged
-1991 tsi awd, big 16g.
Pages: 1 [2]
« previous next »