RotoFab + JBA Shorties + MBRP only makes 10hp! - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

v6sonoma · 05-13-2010, 08:04 PM

I guess the next test is to take that thing to the track! Get some good 1/4 mile times. lol Sometimes what a part does or doesn't do isn't always clear. Ask the cam guys out there. There are plenty of cams that will give high #'s on a dyno but cut the balls off of the low end and hurt more than help.

HeavyD · 05-13-2010, 08:12 PM

Even my wife new the car had more power just by the way it feels. Woman's intuition is a powerful thing!

ron10 · 05-13-2010, 08:13 PM

regardless of the dyno results,with the mods you have installed,the only one that is going to net a little HP is your CAI.

Ferrarimk13 · 05-13-2010, 08:50 PM

your stock hp number of 311, isnt that below average of what L99s usually put out or is it because of the dyno?

HeavyD · 05-13-2010, 09:18 PM

It is well documented that Mustang dynos show the lowest power results due to their correction factors or whatever.

*radz28* · 05-13-2010, 09:31 PM

I'm sorry about your results. However, I wouldn't put too much into it, because you dyno'd on different days and, shoot, sometimes a car just isn't consistant. My car, on the same day, within the same ten minutes would very 10 RWHP. I'm not calling you a liar, or saying that the gains still very disappointing, but I think it may be better to try to think of your improvements in ways other that power. For example: I'm sure the car sounds better, and the engine comparment and tips look better than stock. Also, I'm sure your car lost a bit of weight too...

I know... all that doesn't mean sh*t. It has been said there is little to no gains from shorties OR a catback. Honestly, I really think a more aggressive tune would be benefitial, but I understand what you were trying to do. For me, I've been contemplating shorties, if only for a little more power (I'm hoping for FI when the time comes) and definately better sound. Personally - I realize that's about all I could expect, but it's all about how it feels in your gut.

Regardless - I'm sorry the gains weren't what you were hoping for, however, I think you've got a great combination and I thank you for posting your experience. You may have saved some people several (maybe even close to) a thousand bucks! That doesn't help you, but I certainly appreciate your coming on and posting. How about you get some videos up so we can enjoy what you've got going on?

Respectfully...

d69chris · 05-13-2010, 09:39 PM

Looks like an EKG machine

He must of had it on while shifting up through the gears.

When they dynoed my L99 they got into 4th, started recording and hit the gas! Much smoother curve.

Mustangs will read a little lower, so 10 might be 12-15 on a dynojet. I was putting out 356RWHP with my L99, roto-fab & corsa cat-back on a dynojet.

axis · 05-13-2010, 09:58 PM

Quote:

Originally Posted by d69chris

Looks like an EKG machine

He must of had it on while shifting up through the gears.

When they dynoed my L99 they got into 4th, started recording and hit the gas! Much smoother curve.

Mustangs will read a little lower, so 10 might be 12-15 on a dynojet. I was putting out 356RWHP with my L99, roto-fab & corsa cat-back on a dynojet.

This is the proper way. You don't graph out the entire run through the gears, just 4th.

2010 SSRS · 05-13-2010, 10:27 PM

Quote:

Originally Posted by d69chris

Looks like an EKG machine

He must of had it on while shifting up through the gears.

When they dynoed my L99 they got into 4th, started recording and hit the gas! Much smoother curve.

Mustangs will read a little lower, so 10 might be 12-15 on a dynojet. I was putting out 356RWHP with my L99, roto-fab & corsa cat-back on a dynojet.

Do you have Headers?

thesnoopster · 05-13-2010, 10:51 PM

Quote:

Originally Posted by 2010 SSRS

Do you have Headers?

He stated he has JBA shorties ..... and yes that is the wildest dyno chart .... really never seen a chart that they record while going through the gears .... hmmm I wish I new a little more on what the problem maybe but ... wow I would expected a little bit more..... but its understandable on what path you are taking with staying in the limits of the warranty.

MarylandSpeed · 05-13-2010, 11:33 PM

The mods you did are kind of "nothing" mods in terms of power without a tune. In the simplest terms, you can't just strap parts on a car and expect the computer to know how to use them. In some cases the stock computer will actualy try and learn mods away. It wants to run like stock and makes adjustments to do so.

tribone · 05-13-2010, 11:44 PM

Dyno Tune

tony1 · 05-14-2010, 06:58 AM

I agree .. your car is under tuned and tuned to Stock .. You'd have to tune to your mods.. Also I didn't know with the Auto the Dyno will be all over the place .. I think the true way to tell would be Track times before and after .. Can't really read too much in the Dyno's .. The Auto's dyno lower than the M6 but will run faster times. It's like apples to oranges..

Roto-fab 1 · 05-14-2010, 07:12 AM

Most of all our customers are reporting around 15 HP with 10 HP being on the low side. That is with the CAI only-no tune, no headers. Peak numbers are nice to talk about, but you should look at the differences across the RPM range and/or drivability and track times to know what you've really gained.

05-13-2010, 08:04 PM	#15
v6sonoma Drives: 2010 SS RS Join Date: Jun 2009 Location: Providence, RI Posts: 8,108 View My Garage	I guess the next test is to take that thing to the track! Get some good 1/4 mile times. lol Sometimes what a part does or doesn't do isn't always clear. Ask the cam guys out there. There are plenty of cams that will give high #'s on a dyno but cut the balls off of the low end and hurt more than help. __________________ Mods: BBK Intake, BBK LT's and High Flow Cats, Corsa Cat-back exhaust, Hurst short throw shifter, SLP skip-shift eliminator. 7/1/09 Placed order for IOM/IO int/ SS/RS 6M 9/26/09 Took delivery!

05-13-2010, 09:39 PM	#21
d69chris Florida C5 Drives: 2010 Camaro 2SS Vortech L99 IOM Join Date: Jul 2009 Location: Tequesta, FL Posts: 2,610 View My Garage	Looks like an EKG machine He must of had it on while shifting up through the gears. When they dynoed my L99 they got into 4th, started recording and hit the gas! Much smoother curve. Mustangs will read a little lower, so 10 might be 12-15 on a dynojet. I was putting out 356RWHP with my L99, roto-fab & corsa cat-back on a dynojet. __________________ Ordered 11/08/08....Del. 08/05/2009 Loving every minute of it! Don't hate me because i'm Pretty....

05-13-2010, 11:44 PM	#26
tribone Searchin' .... Drives: Powered by Bowtie Join Date: Jun 2008 Location: Camaroville Posts: 6,229 View My Garage	Dyno Tune __________________ -Guillermo My Pictures

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05-13-2010, 08:12 PM	#16
HeavyD Drives: 1SSRS RY L99 Join Date: Aug 2009 Location: Ontario Posts: 1,329	Even my wife new the car had more power just by the way it feels. Woman's intuition is a powerful thing!

05-13-2010, 08:13 PM	#17
ron10 Drives: 2010 2SS IOM L99 Join Date: Jan 2010 Location: LOUISVILLE,KY.. Posts: 7,545	regardless of the dyno results,with the mods you have installed,the only one that is going to net a little HP is your CAI.

05-13-2010, 08:50 PM	#18
Ferrarimk13 Drives: Hopefully a Camaro in a year Join Date: Apr 2009 Location: Staten Island, NY Posts: 727 View My Garage	your stock hp number of 311, isnt that below average of what L99s usually put out or is it because of the dyno?

05-13-2010, 09:18 PM	#19
HeavyD Drives: 1SSRS RY L99 Join Date: Aug 2009 Location: Ontario Posts: 1,329	It is well documented that Mustang dynos show the lowest power results due to their correction factors or whatever.

05-13-2010, 09:31 PM	#20
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,201 View My Garage	I'm sorry about your results. However, I wouldn't put too much into it, because you dyno'd on different days and, shoot, sometimes a car just isn't consistant. My car, on the same day, within the same ten minutes would very 10 RWHP. I'm not calling you a liar, or saying that the gains still very disappointing, but I think it may be better to try to think of your improvements in ways other that power. For example: I'm sure the car sounds better, and the engine comparment and tips look better than stock. Also, I'm sure your car lost a bit of weight too... I know... all that doesn't mean sht. It has* been said there is little to no gains from shorties OR a catback. Honestly, I really think a more aggressive tune would be benefitial, but I understand what you were trying to do. For me, I've been contemplating shorties, if only for a little more power (I'm hoping for FI when the time comes) and definately better sound. Personally - I realize that's about all I could expect, but it's all about how it feels in your gut. Regardless - I'm sorry the gains weren't what you were hoping for, however, I think you've got a great combination and I thank you for posting your experience. You may have saved some people several (maybe even close to) a thousand bucks! That doesn't help you, but I certainly appreciate your coming on and posting. How about you get some videos up so we can enjoy what you've got going on? Respectfully...

05-13-2010, 11:33 PM	#25
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	The mods you did are kind of "nothing" mods in terms of power without a tune. In the simplest terms, you can't just strap parts on a car and expect the computer to know how to use them. In some cases the stock computer will actualy try and learn mods away. It wants to run like stock and makes adjustments to do so.

05-14-2010, 06:58 AM	#27
tony1 Drives: 2SS/RS Vortech/L99 Join Date: Jan 2010 Location: CHICAGO Posts: 474	I agree .. your car is under tuned and tuned to Stock .. You'd have to tune to your mods.. Also I didn't know with the Auto the Dyno will be all over the place .. I think the true way to tell would be Track times before and after .. Can't really read too much in the Dyno's .. The Auto's dyno lower than the M6 but will run faster times. It's like apples to oranges..

05-14-2010, 07:12 AM	#28
Roto-fab 1 Drives: 16 Camaro SS w/ Roto-fab CAI Join Date: May 2009 Location: Arizona Posts: 2,682	Most of all our customers are reporting around 15 HP with 10 HP being on the low side. That is with the CAI only-no tune, no headers. Peak numbers are nice to talk about, but you should look at the differences across the RPM range and/or drivability and track times to know what you've really gained.