|
Register | FAQ | Members List | Calendar | Mark Forums Read |
2005-2009 Saleen Mustang For all S281, S302, H281 and H302 models based on the Ford S-197 Mustang platform, with the exception of the S302 PJ (see below). Be sure to specify year, model and equipment if asking for help. |
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
Brenspeed Stage 3 Upgrade (Value Impact)
I have a stock 2005 S281 SC with 20k miles. It is all factory, except for aftermarket 20" wheels and a K&N cold air intake. Supercharger pulley still has factory seal and motor is unmolested.
I am looking for opinions on how a supercharger boost upgrade and tune would effect the value of the car. Information on kit below: Brenspeed Custom Saleen Stage 3 "Corvette Killer" Upgrade Package. FITS 05-2010 MUSTANG GT equipped with a Saleen series VI supercharger package Our turn key Saleen Stage 3 supercharger package is a complete kit that includes everything you need to convert your current supercharger to a 530 HP package. You get a 3.4 supercharger pulley producing 9.5 psi of boost (boost varies based off of RPM and altitude), belt, a JLT cold air intake, 39 lb. injectors, Kenne Bell Boost-A-Pump, Vacuum line kit that improves fuel system efficiency, one step colder spark plugs, and a custom Brenspeed tuned SCT X4 programmer. |
#2
|
||||
|
||||
It may affect the value slightly. If I remember right the 2005 was down on HP compared to the later years. You can always put it back to stock if you sell. The stage 3 kit will really wake the car up.
|
#3
|
|||
|
|||
Thank you for the feedback. The original supercharger pulley has a factory seal that voids the warranty if removed. I'm not concerned about the warranty, but rather if tampering with the engine will cause the car to lose value. Or on the other hand, if an upgraded Saleen would have an upgraded value. Or if people view an add on like this as no big deal, as the internals are all intact. Opinions?
Based on what I read on the 2005: Supercars.net: "The supercharger used in the 2005 S281 SC is an all-new innovative design, which Saleen has several patents for. Called the Saleen Series VI integrated TwinScrew supercharger, the Saleen design integrates the previously separate intake manifold, blower housing/assembly and intercooler into one compact unit that nestles neatly into the valley between the heads. This allows for a much wider intake manifold. The blower assembly contains twin screws, which push 2300 cc of air per rotation versus 1600 cc for last year’s supercharger. As a result, the supercharger turns slower for equivalent boost, producing lower stress and lower air charger temperatures." Mustang360: "When testing the first Saleen S281, we were surprised to see the system developed just 3.5 psi of boost, but according to Spruill, that's all Saleen needed to reach its goal of 400 hp. "We had an expectation of output, and the efficiency of the design allows for a lot less heat," he says, "so we are able to reach the performance goal with less boost. The kit is designed to make 4 psi. It would have taken a lot more boost with older designs to accomplish that level of power." |
#4
|
|||
|
|||
I had the car dyno tested last night to establish a baseline.
445 flywheel hp 345 rwhp 5.5 lbs of boost The air:fuel ratio was leaning out at higher RPM towards 15. The only modification on the car is a K&N cold air intake. For those interested in results from the Brenspeed Stage 3 kit. I will post an update if I choose to go that route. I've had other conversations on the value impact of tampering with the factory setup and some feel it could have more value stock, in 30 years, but shouldn't have much effect over the next 20 or so. |
#5
|
|||
|
|||
air/fuel ratio
You say: The air:fuel ratio was leaning out at higher RPM towards 15.
I hope your tuner stepped up and told you that is too lean at WOT. my thought in safe air/fuel ratio would be in the 11.5 range at WOT, just saying! |
#6
|
|||
|
|||
I agree. Yes, the tuner raised concern over the reading. When the 2nd pull confirmed the elevated reading from the first pull, he chose to check all sensors and short pull on the 3rd.
I ranged from 12.25 to 14.5. The cold air intake was added before I bought the car. My thoughts on probable cause: - The car was not calibrated to the increased air flow from K&N air intake - The variable exhaust is causing a skewed reading (they probed the pipes that face the ground under neath and not the middle tips). - Fuel pump or some other reason the fuel is not keeping up. The approach from the tuner is to scan the current tune and send to Brenspeed prior to installation of stage 3 kit that will include a custom tune, boost-A-pump, vacuum lines, cold air intake, belt, pulley, etc. The new setup should take care of the problem. I've attached a copy of the results. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|