Roush wheel hp and tq in the s281 and 281sc
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1fstsln said:
FLYWHEEL horsepower (03 and above) s281na 290 horsepower 330 torque, s281sc 375 horsepower 415 torque. if you are talking to the wheel, from my personal experience the s281s/c with boltons (the series II) most rear wheel power was 330. that was my car. their are some guys who made 350 rwhp (i dont know how). i would go na with a saleen ,and add the power adder of your choice. my .02
00s281sc368
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2001s281 said:
I totally agree! Mine made only 278rwhp/343rwtq with the saleen Gen I blower.
Get it n/a and add your own blower later on !
Saleen Mike
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- Oct 17, 2002
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My 2000 S281-SC AUTO TRANS w/Gen I made the following:
Stock:
291 rwhp
365 rwtq
After I fixed the "pig rich" tune:
318 rwhp
424 rwtq
If you factor in a 21% driveline loss w/ the auto trans that equates to:
402 hp
524 tq
Stock:
291 rwhp
365 rwtq
After I fixed the "pig rich" tune:
318 rwhp
424 rwtq
If you factor in a 21% driveline loss w/ the auto trans that equates to:
402 hp
524 tq
Saleen Mike said:
Saleen Mike,
i'm not familiar with the term "pig rich" as far as saleen tuning. can you elaborate on that at all? i'm guessing you mean that the Saleen tune from the factory is really rich, adverslely affecting the performance. i have a five speed 281sc (series II) with a pulley, intake, x-pipe, etc. if i haven't personally messed with the tuning as of yet, i'm curious what kind of horsepower you think i may be producing? i would have to think using basic math that at the motor i've got anywhere from 405-425hp based on what i hear for hp on chicane upgrades. what am i looking at on rwhp now and after i get the cpu retuned on a dyno?
in the next couple of weeks i'm going to have 3.55s put on my car and may add comp stage II cams, advance the timing, or 32V heads depending on the money situation. what i want to know is that short of upgrading the blower to a KB or series IV/V or something what am i going to get out of a series II at the rear wheels with modifications. i can afford just about whatever short of a new blower and hardware? or maybe i should save and simply add a better blower and keep the internals i've got, but that seems like it may cause problems later.
Head Paneer
Founding Member
Mike’s numbers are at the high end of the spectrum. Who tuned the car, Mike? I am not sure what mods he has, though I think only an X-pipe. At the low end, I have seen other guys with typical bolt-ons (66mm Pulley, X-pipe, TB, CAI, tune) not even break 300 HP to the wheels (with a 5 speed). My Series I car pulled 304 RWHP and 369 RWTQ with just a CAI. It's difficult to say where your numbers will land.
Be careful of a smaller pulley. Some people have gained a couple pounds of boost with less than twenty HP to show for it. The disadvantage can be substantial gains in intake charge temperatures from the added boost and more stress on the fuel system. It is not uncommon for these cars to run lean in the upper RPMs with smaller pulleys (and stock fuel system). Make sure your tuner has wide band capability to check your air/fuel ratio. Do you still have the stock fuel pump?
32 Valve heads will not bolt up to the Saleen intake, by the way.
Be careful of a smaller pulley. Some people have gained a couple pounds of boost with less than twenty HP to show for it. The disadvantage can be substantial gains in intake charge temperatures from the added boost and more stress on the fuel system. It is not uncommon for these cars to run lean in the upper RPMs with smaller pulleys (and stock fuel system). Make sure your tuner has wide band capability to check your air/fuel ratio. Do you still have the stock fuel pump?
32 Valve heads will not bolt up to the Saleen intake, by the way.
thanks for the advice, personally, i wasn't big on a 32V head swap anyway but a buddy of mine won't shut the hell up about it. regardless of the fact that i know little to nothing about something like that. i had my choice of buying either an 03'/04' Cobra or a Saleen and i went with the Saleen, obviously. sometimes i see the cobras and drool about the power, especially with a KB swap; but like someone told me when i was debating which to get, "to the untrianed eye, cobras blend in with every other mustang... you don't see a true saleen everyday". something i already knew! the shop i'm taking my car to i'm sure has the capability for wide band tuning and i plan on getting the air/fuel ratio checked out. i do have the stock saleen fuel system, to my knowledge and experience i've had no probs with the chicane pulley. i guess i'm just surprised at the marked decrease in power at the wheels for the saleen when the new cobras are much better off.
We have dynoed about 10 S281 SC's in the last two months. Most make 265-278 hp at rear and 340-365 torque at the wheels. My S281 SC a 2000 made 300 RWHP and 365 FT LBS With only a densecharger cold air kit.
The 99-00 make about 5HP less than 01-02 blowers.
They do not make the power of the Vortech or Paxton cars but the motors live a lot longer than the higher HP units.
[email protected]
The 99-00 make about 5HP less than 01-02 blowers.
They do not make the power of the Vortech or Paxton cars but the motors live a lot longer than the higher HP units.
[email protected]
My best run was 308rwhp and 380rwtq. That was with all my mods. As stated above the pulley really didnt help me much since i seemed to be running lean up top. I gained 13 hp with some 3 extra pounds of boost. My worst run was 295 and 356 torque. But it was almost 100 out that day and real humid, so i will give my car the benefit of the doubt. Anyways, I had my car dynoed at the lame ass dyno lab in Cobb county and they dont do **** to help you out. just strap it on and dyno. No tuning at all. And the most % loss i would use is 15 percent on a 5 speed, maybe 20 on an auto. 21% is way too much IMHO. But as you can tell very inconsistent cars. My car almost got into the 12's. I figure with a real tune and some more bolt ons i will be well into them.
Yellow99Saleen said:
i called T&J motorsports in alpharetta to inquire about my future mods. they're so busy with stangs they can't even get me in until some time in august but here's what they told me. i'm gonna get gears, labor, and everything done for about $350, here in athens. it's a steal...T&J said that for $500 they will reprogram the saleen cpu, do multiple runs on the dyno and tune it professionally. i'm considering bassani mid lengths but i've heard it's too much for just 12hp?! i brought up stage 2 comp cams and it's a cool $1000 for that. of course, i know what kind of labor goes into that so i understand; but that's a proven 25rwhp alone. i've got the money for headers, cams, gears, and the full tune and reprogram...but i just don't know if i want to spend it! i see you ran a 13.1, was that with 3.08 gears? if so, i can only guess that with steeper gears and a tune you'd be in the 12s.
any ideas from you folks on what's worth my time and money. my car is not even an everyday driver and i don't plan on running the 1320 because i'm not too worried about it. sounds as though it wouldn't take too much to be a solid 12 sec. car. funny that Saleen lists the showroom floor 1/4 mile on the 281sc at 13.1? no mods....
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