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K&N 3690 #865733 02/08/04 04:31 AM
Joined: Nov 2002 Posts: 392 Omaha B Baby SHO OP CEG\'er
OP Baby SHO CEG\'er B Joined: Nov 2002 Posts: 392 Omaha	Just wondering what everyone thinks of this filter. Is it too big, just right, etc.? Thanks. 1998 SVT

Re: K&N 3690 #865734 02/08/04 06:37 AM
Joined: Sep 2000 Posts: 9,602 KC, MO D DemonSVT_dup1 Hard-core CEG'er
DemonSVT_dup1 Hard-core CEG'er D Joined: Sep 2000 Posts: 9,602 KC, MO	Actually posting the full part number or the dimensions would help you get an answer quicker. 2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.

Re: K&N 3690 #865735 02/10/04 05:11 AM
Joined: Nov 2002 Posts: 392 Omaha B Baby SHO OP CEG\'er
OP Baby SHO CEG\'er B Joined: Nov 2002 Posts: 392 Omaha	RC-3690: Product Style: Round Tapered Universal Air Filter Base Outside Diameter: 6 in (152 mm) Flange Inside Diameter: 3.5 in (89 mm) Flange Length: 1.75 in (44 mm) Flange Type: Centered Height: 9 in (229 mm) Top Outside Diameter: 4.5 in (114 mm) Top Style: Metal Top Material/Finish: Chrome 1998 SVT

Re: K&N 3690 #865736 02/10/04 05:55 AM
Joined: Sep 2000 Posts: 9,602 KC, MO D DemonSVT_dup1 Hard-core CEG'er
DemonSVT_dup1 Hard-core CEG'er D Joined: Sep 2000 Posts: 9,602 KC, MO	9" in length. (plus 1.75" flange) That's far too big to fit. Why not just use the RU-3530 that is an optimum size for a 2.5L and fits easily in the space available. 2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.

Re: K&N 3690 #865737 02/10/04 07:11 AM
Joined: Sep 2000 Posts: 250 State College, PA X xdouble_dup1 CEG\'er
xdouble_dup1 CEG\'er X Joined: Sep 2000 Posts: 250 State College, PA	Actually, a 9" filter will fit IF you have a short intake pipe and a Pro-Flow with no flange on it. I am currently using a RE-0920 with a CTA intake pipe and Pro-Flow 75mm MAF. The 0920 is actually a little bit larger than the 3690, so the 3690 would definitely fit under these conditions. EDIT: I am not debating whether this size filter is more or less optimal for performance. I am only stating that it will fit. Last edited by xdouble; 02/10/04 07:14 AM. Matt 2000 SVT Toreador #1210 of 2150

Re: K&N 3690 #865738 02/10/04 04:30 PM
Joined: Nov 2002 Posts: 392 Omaha B Baby SHO OP CEG\'er
OP Baby SHO CEG\'er B Joined: Nov 2002 Posts: 392 Omaha	Originally posted by DemonSVT: 9" in length. (plus 1.75" flange) That's far too big to fit. Why not just use the RU-3530 that is an optimum size for a 2.5L and fits easily in the space available. Actually,it fits with about an inch of clearance. This is with the factory accordian tube, flanged Pro-flow, and SHO Shop heatshield. 1998 SVT

Re: K&N 3690 #865739 02/10/04 07:13 PM
Joined: Sep 2000 Posts: 9,602 KC, MO D DemonSVT_dup1 Hard-core CEG'er
DemonSVT_dup1 Hard-core CEG'er D Joined: Sep 2000 Posts: 9,602 KC, MO	Wow that has to be a tight squeeze! I bet the stock POS accordian tube is squished down to about 50mm I.D. Either way you still have Far too much filter for a small 2.5L engine. You are getting less airflow, air straightening and velocity compared to an optimum sized filter. There have even been dyno tests proving this before. Running an oversized filter can actually hurt perfromance. 2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.

Re: K&N 3690 #865740 02/11/04 05:50 AM
Joined: Nov 2002 Posts: 392 Omaha B Baby SHO OP CEG\'er
OP Baby SHO CEG\'er B Joined: Nov 2002 Posts: 392 Omaha	Originally posted by DemonSVT: Wow that has to be a tight squeeze! I bet the stock POS accordian tube is squished down to about 50mm I.D. Either way you still have Far too much filter for a small 2.5L engine. You are getting less airflow, air straightening and velocity compared to an optimum sized filter. There have even been dyno tests proving this before. Running an oversized filter can actually hurt perfromance. Good point, anyone want to buy an RC-3690? 1998 SVT

Re: K&N 3690 #865741 02/11/04 11:47 AM
Joined: May 2003 Posts: 347 Ireland!!!!! R Ronan_dup1 CEG\'er
Ronan_dup1 CEG\'er R Joined: May 2003 Posts: 347 Ireland!!!!!	Would the KKM filter (came with the KKM induction kit) be too big a filter? I just read the post about them imploding, so should I be getting the RU3530 K&N? Sorry if this has been discussed a million times b4. 1996 Mondeo 24v 4-door twin janspeed stainless pipe cat by-pass Phase 2 RS bodykit 16" cosworth alloys K&N RU3530 SVT TB/UIM/LIM poly bushings konis/bat springs/bar Pioneer MSDS Indiglos P&P heads 2005 Mondeo Zetec Tdci

Re: K&N 3690 #865742 02/11/04 12:16 PM
Joined: Apr 2003 Posts: 1,322 San Diego, CA M Marky_dup1 Hard-core CEG\'er
Marky_dup1 Hard-core CEG\'er M Joined: Apr 2003 Posts: 1,322 San Diego, CA	The RU-3530 is the way to go. 1999 Toreador Red SVT, DOB 4/22/99, 2005 Of 2760. "Many posted questions are answered by farm boys"

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