K&n 08-09 Air Intake

[Skeeter Blanton]

Has anyone verified the HP & Torque on the new Typhoon Air Intake?...K&N claims 18+ HP gain.....Thanks

 

[mjorgensen Woodhouse]

Pass Skeeter IMO anyways.

 

[Newport Viper]

From SRT engineer chat....

FastZilla asked: "What are the differences between the "specially developed" "SRT" oil filter and the high quality after market offerings of Mobile 1, K&N, etc.

I have read posts that mention:
- filter housing thickness
- stronger bypass springs
- neoprene anti-back flow valve
- 3 ounces heavier than previous Mopar filter
- coarser filter media vs super-fine K&N (and the like)

There are tons of us here that really want and need to know the secret behind the "SRT" filter. I literally am losing sleep over it - I can't accept the SRT filter's superiority on a leap of faith.

We all want the very best for our Vipers - please help us understand the SRT filter.

Thanks in advance!"

The SRT oil filter for all the past engines and the new 22mm inlet SRT filter for the Gen 4 and beyond engines share the same characteristics.
We worked with many of the filter suppliers to get the best features. Some fell out for various performance reasons but we ended up developing the current SRT filters with one of the mainstream manufacturers (it is different than their commercial offerings - or at least was when we developed it). The high flow oil pumps in our large engines (Viper is the biggest) can overpower the internal relief valve. When this valve opens it allows some of the high pressure dirty oil to bypass the filter element in order to keep the filter from being damaged. The SRT filters do indeed have a higher differential bypass valve to make sure all the oil delivered to your powerplant is clean. The housing is slightly thicker than many of the brands out there to handle the pressure but is not the thickest. The real thick ones failed our development testing (fractured at the crimped flange). The media used was one of the latest synthetics that allowed very fine filtration, more debris capacity, and much lower restriction than our standard Mopar filter (and just about every other filter out there). The final result was clean oil to your Snake, all the time, with more pressure to the internals where it is needed. I would fully recommend using this filter in your beast, I do in mine. Hope this info helps. KCC

"VIPER GTSR 91 asked: 1) "Since Dodge dealers service dept. no longer sells Mobil 1 0w40 as your manual suggest or any other Mobil syn. viscosity for that matter, what alternative fill by dealers is just as good? On a recent visit to my dealer they tried to sell me Quacker 5w30 syn. but I had them go get Mobil 1 0w40 at a local parts store. Your fill caps say Mobil 1 and its the factory fill. Are you having another brand cap made up? Thanks.

2) You claim a lot of testing was done with the factory paper air filter vs. after market ones with no gains, but a recent thread from an ACR 09 owner says he got a 4-5 HP gain alone on a dyno with the K&N filter compared to the oem paper unit. K&N now makes a specific filter for the 08 and 09 Viper (not the old Mazda unit) Your thoughts?"

1) Any major brand quality synthetic oil will be fine for most uses. More importantly, try to stay with the viscosity recommendation for your engine (if you have a Gen IV you should always run a 0W-40 or 5W-40 unless at the track when a 15W-50 might be in order).

2) As previously stated, we have run dyno tests without a filter element at all and saw little if any gain in power. Unless a filter element can provide boost pressure to the inlet you won't see much from a filter element change in our opioions.