[hl0m4n]

for those who are waiting on me for the supersprint group buy pricing and my review my deepest apologizes. i finished the review have the pricing ready but all i need to do is get final dyno #s which i went for today and came up really f'ed up and i have no clue what the problem is. dynos done at ideal temp range (210-240), and after exhaust broken in 200 miles.

Dynojet 93 Octane:
Best Stock: 276.99 HP/286.82 TQ (Out of 6 runs)
54.65 F, 30.38 in-Hg, Humidity 28%, SAE .94

Best Exhaust: 275.95 HP/272.48 TQ (Out of 11 runs)
51.43 F, 30.29 in-Hg, Humidity 41%, SAE .94

[sdwilly]

Originally Posted by hl0m4n

for those who are waiting on me for the supersprint group buy pricing and my review my deepest apologizes. i finished the review have the pricing ready but all i need to do is get final dyno #s which i went for today and came up really f'ed up and i have no clue what the problem is. dynos done at ideal temp range (210-240), and after exhaust broken in 200 miles.

Dynojet:
Best Stock: 276.99 HP/286.82 TQ (Out of 6 runs)
54.65 F, 30.38 in-Hg, Humidity 28%, SAE .94

Best Exhaust: 275.95 HP/272.48 TQ (Out of 11 runs)
51.43 F, 30.29 in-Hg, Humidity 41%, SAE .94

That's one hell of an exhaust (j/k)

Nothing else changed? Same Dyno?

[Terry335]

Post the chart, maybe there are gains under the curve.

[hl0m4n]

Originally Posted by Terry335

Post the chart, maybe there are gains under the curve.

i don't have a scanner at home. what can the problem be? and what do you mean by gains under the curve? i got a seperate print out of my best stock to best exhaust and the #s are posted above.

right now im like wtf. i just paid $90 for dyno run to find out i gained nothing. could a small exhaust leak be this effective?

[stillclaimndp]

Originally Posted by hl0m4n

for those who are waiting on me for the supersprint group buy pricing and my review my deepest apologizes. i finished the review have the pricing ready but all i need to do is get final dyno #s which i went for today and came up really f'ed up and i have no clue what the problem is. dynos done at ideal temp range (210-240), and after exhaust broken in 200 miles.

Dynojet:
Best Stock: 276.99 HP/286.82 TQ (Out of 6 runs)
54.65 F, 30.38 in-Hg, Humidity 28%, SAE .94

Best Exhaust: 275.95 HP/272.48 TQ (Out of 11 runs)
51.43 F, 30.29 in-Hg, Humidity 41%, SAE .94

a $2,500 exhaust that robs you of exactly 1.04 hp and achieves -14tq... ouch.

[stillclaimndp]

Originally Posted by hl0m4n

i don't have a scanner at home. what can the problem be? and what do you mean by gains under the curve? i got a seperate print out of my best stock to best exhaust and the #s are posted above.

right now im like wtf. i just paid $90 for dyno run to find out i gained nothing. could a small exhaust leak be this effective?

if anything an exhaust leak would probably make more power... humidity WAS higher on the day the exhaust was dyno'd but this just looks like bad engineering...

[Terry335]

Originally Posted by hl0m4n

i don't have a scanner at home. what can the problem be? and what do you mean by gains under the curve? i got a seperate print out of my best stock to best exhaust and the #s are posted above.

right now im like wtf. i just paid $90 for dyno run to find out i gained nothing. could a small exhaust leak be this effective?

By power under the curve I mean maybe the peak isn't better, but the torque is higher at areas below the peak?

To be 100% candid I am not a big believer in catback systems at the moment, especially on a stock car.

[sdwilly]

Originally Posted by Terry335

To be 100% candid I am not a big believer in catback systems at the moment, especially on a stock car.

Reason being?

[stillclaimndp]

Originally Posted by sdwilly

Reason being?

seems like the stock exhaust was well designed to be as efficient as possible for the stock setup... until you turn up boost and increase power output, upgraded exhaust is really only good for sound, maybe a few hp. I might have to go with Terry and try just Downpipes on the stock catback... Riss's video's sounded pretty good with that setup

[jcarlucci1]

Originally Posted by sdwilly

Reason being?

Nobody has really shown any power gains with them..

[sdwilly]

Originally Posted by jcarlucci1

Nobody has really shown any power gains with them..

That's a pretty good reason

[Terry335]

Originally Posted by sdwilly

Reason being?

Like the other guys said the HP gains aren't there to warrant the cost and added noise, for me anyway.

If you like louder/better sound then a catback is a good mod. It's just not a great performance mod.

[hl0m4n]

the agency exhaust by jlevi posted a 23whp gain... there is no way a supersprint exhaust or any other exhaust of that matter will just give you a 1whp increase...

[sdwilly]

Originally Posted by Terry335

Like the other guys said the HP gains aren't there to warrant the cost and added noise, for me anyway.

If you like louder/better sound then a catback is a good mod. It's just not a great performance mod.

Louder is good to a point, some of the exhaust available are overkill for me (I must be getting old or something).

So in your opinion on a modded car would it be worthwhile? (Say JB2 or ProCede)..

[O-cha]

Originally Posted by stillclaimndp

if anything an exhaust leak would probably make more power... humidity WAS higher on the day the exhaust was dyno'd but this just looks like bad engineering...

No offense but that's clearly the opinion of someone who doesn't have a technical understanding of exhaust systems. I'm sure your thinking "oh well if its leaking that means you know the exhaust can get out faster more power yay"

Yea it does not work that way, exhaust leaks are bad the hamper the flow of the exhaust not help it.

[Terry335]

Originally Posted by sdwilly

Louder is good to a point, some of the exhaust available are overkill for me (I must be getting old or something).

So in your opinion on a modded car would it be worthwhile? (Say JB2 or ProCede)..

If you want a louder car or better sound, it's worthwhile. If you prefer to keep the car quiet, I would not say the performance gains are worth the cost/hassle of it. Not to mention the potential warranty problems. Only if you want every last 10rwhp.

[hl0m4n]

i found two dynos/reviews on the exhaust
1. http://www.e90post.com/forums/showth...persprint+dyno
2. http://www.e90post.com/forums/showth...persprint+dyno
3. http://www.europeancarweb.com/tech/e...des/index.html

seriously are 1hp? what can be the problem?

[stillclaimndp]

Originally Posted by O-cha

No offense but that's clearly the opinion of someone who doesn't have a technical understanding of exhaust systems. I'm sure your thinking "oh well if its leaking that means you know the exhaust can get out faster more power yay"

Yea it does not work that way, exhaust leaks are bad the hamper the flow of the exhaust not help it.

i have a clear understanding of how that would impare flow, o-cha, and if you want me to start telling people what i really think of some of your posts, just keep up that attitude and you'll be wanting to double check your posts going forward before you make them.

[stillclaimndp]

Originally Posted by hl0m4n

i found two dynos/reviews on the exhaust
1. http://www.e90post.com/forums/showth...persprint+dyno
2. http://www.e90post.com/forums/showth...persprint+dyno

seriously are 1hp? what can be the problem?

i think because these have a tune...

[hl0m4n]

Originally Posted by stillclaimndp

i think because these have a tune...

if you look at rips dyno the 2nd one is with ss exhaust only, and for the magazine it shows two setups, one with connecting and x and then a complete which is what i have...

[stillclaimndp]

look at the super sprint exhaust, then look at the harman motive exhaust which costs $1,000 less, they look the same:

http://www.harmanmotive.com/catalog/...f4f20c0f5bbbb5

[O-cha]

Originally Posted by stillclaimndp

i have a clear understanding of how that would impare flow, o-cha, and if you want me to start telling people what i really think of some of your posts, just keep up that attitude and you'll be wanting to double check your posts going forward before you make them.

Then why would you say an exhaust leak would help horsepower, but feel free to comment on any of my posts, in a PM because this is not the place for it. But I would love to hear what you have to say.

Also threatening people on the internet? Interesting.