I have yet to see a dyno from someone who has a CAI, header, s-pipe, and full exhaust. I am thinking of getting this setup:

Injen CAI
MMW Header/S-Pipe
Creative Compacts full exhaust (stainless, high flow cat, either borla or magnaflow...which one to get)

How much can I expect out of this? If you add up the numbers on different sites, it seems like approx 40hp/40tq...this seems a bit high...can this be true?

EDIT: goal is between 180-200whp totally NA

 

Not a chance in hell you'd get 40hp. More like 15-20 on average. The MMW dyno (on their site) was done with an intake and an exhaust on the car, if I remember right.

 

The money you'd spend on getting 200 at the wheels naturally aspirated could be spent on a turbo kit to achieve 230-270 horsepower. Or even the supercharger for 205ish wheel horsepower while maintaining the factory warranty.

 

i never got a baseline dyno for my car, but auto tc's dyno around 123-127whp. i have AW header, injen cai, greddy sp2, draxas s-pipe. i dynoed 141whp and 137tq. so from that, im guessing i gained between 14-17whp on my setup..i think i might have lost some tq because of the s-pipe and cai but the gains outweighed the loss.

 

fair enough...problem w/ forced induction is this:

supercharger is 3 grand + install for 40hp...seems like a rip to me
i can't pass inspection w/ a turbo, which is a problem (atleast I think I can't...im in NJ...any probs w/ this?)

Also, if I go FI (turbo most likely), I'd wanna do clutch at the same time, meaning I may as well do a flywheel. Turbo is like 7 grand once you're all done with it, seems like a bunch of money to be throwing into a 19k car.

 

Forced induction is always a bunch of money to throw into any car. Hell, we're lucky.

A supercharger for a BMW M3 is 12,000 for Stage 1 and 20,000 for Stage 2 :p Granted you're getting 460 horsepower while maintaining your warranty (Dinan products) but still. Gotta pay to play.

A supercharger will get you to 200 wheel horse with 210-215ish crank. The advertised 40 horsepower is a safe estimation. Real safe. If you're not concerned with maintaining your factory warranty, you can always swap the pulley for another 20 or so horsepower and then factor in the gains associated with a cat-back exhaust, header, s-pipe and lightened flywheel. You'll be quick.

 

its actually a 60 hp gain because its 140 at the wheels stock and 200 with the blower.
my intake header combo got me 15 hp on the dyno

 

ahh, that 200 they say is at the wheels? Figured they'd rate it at the crank. If its a 60hp gain, and another 20 w/ the pulley, that isn't so bad. That pretty much means you can hit 230-250ish w/ S/C and IHE...somethin to think about...

 

Dyno's can be misleading though. The only true way to measure performance upgrades is on a timed track. You can gain 20 horsepower on a dyno with different wheels and tires. Hell, a lightweight flywheel will 'add' horsepower even though it doesn't do any of the sort ;)

I'm not saying the gains aren't there, I'm just saying that it's different for every car, and more than likely lower than advertised, since they're usually done in the most opportune conditions to facilitate gains.

 

well the 200 ish to the wheels is proven by other sources like people on the boards and magazine tests

 

oh I wasn't debating the power behind the supercharger. It's a definite power-adder and as reliable as you'll be able to get without going to school for 10 years and making your own :p

Every supercharger dyno I've ever seen was at least 200 wheel horsepower. Probably 190-195 sans any other modifications.

 

Supercharger for 190whp, and I suppose you just can't add the parts (whp) together but its a good start.

 

The TRD supercharger only gives 200hp at the crank...176 to the wheels with no other mods...not 200whp

 

for someone who doesn't have one, you seem to talk like you know what you're talking about, but obviously this isn't the case. You must be talkin about an auto s/c tC because I have yet to see a manuals/c tC dyno less than 192whp

 

I would say that I/H/E on an NA tC would give you 20-25whp.

 

for example:
15whp MMW Header
6whp Injen CAI
6whp GReddy Exahust
(also you can get a lighter crank pulley, 4-6whp extras)
The combination could give you an est. of 25-30whp

 

lets put it this way,

I am Prayin for hopefuly 165-170Whp when I get my car dynoed next month. I think I'm dreaming,.... It'll prob. end up lower...

for now, with all the modificatications to my car, I figgure it's plenty quick. I tookdown an SL 3000 GT the other day, the guy stopped me and asked if it was supercharged....I was like "sorry man, its not"

this keeps me happy in the meantime...

 

oops my mistake i meant to type 186 to the wheels and it also says WITH NO OTHER MODS. also what does not having one have to do with me knowing about it. I've researched on it many times because i'm debating between turbo and s/c(s/c only for warranty and CARB legal status)

 

There is a dyno for this setup....mine

https://www.scionlife.com/forums/viewtopic.php?t=103795

 

I wasn't trying to sound like a douche, but you said it like you were 100% sure and that it was fact. I know you said no other mods, but like I said, show me a dyno of a manual s/c tC that its less than 192whp and I will eat my words. The guy that dynoed 192whp had nothing else on his car but the TRD muffler (which we all know does nothing for performance)