As some of you know and have pointed out, we had the opportunity to test the Roto-Fab intake over this past weekend. The results are nothing short of amazing and I’m proud to say the intake lives up to its manufacturer’s claims and then some! The product itself screams quality, the parts are well manufactured, high quality and packaged incredibly well.
As you can see from the raw PDF data the Roto fab is the real deal and combined with the VMS tune its an unbeatable combo!
A few notes about the data:
This data was obtained on a customer vehicle during quite possibly the worst dyno conditions known to man, the Barometer was horrible and it was very high humidity this past weekend here in Michigan.
All runs were completed with coolant temps between 198-200 degrees and inlet air temps from 86-88 degrees for repeatablity and a fair A-B comparison.
Our dyno printer is broken and unlike Dynojet, MustangDyne does not have a run viewer to print saved runs so we exported them to excel.
Bottom line, the tune and intake are good for HUGE gains all over the power band and on this particular car ~44HP and ~42 lbs/ft of torque at the tires along with our hallmark shifting scheme and 3MPG fuel economy improvement.
did you post the righ chart it looks like 25ish TQ and 25ish HP gain ?!
Scroll all the way down, there is three runs worth of dyno data and a stock to Roto Fab only comparison then a stock to rotofab VMS tuned comparison alone on the last page.
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Chris White www.GTOShiftLight.com
2006 Spice Red GTO - Stock
2008 Trailblazer SS -Tune/CAI/Corsa
2008 Malibu LT2 3.6L - Tune
2008 CTS4 3.6L DI - Intake
2009.5 G8 GT - Intake, Tune, Hacked Atari's, Corsa
2009 Cyber Gray 3LZ Z06 -'10 Launch Control
SO, with your intake test, was the baseline done, and then the CAI bolted on directly and re-dynoed?? Explain your testing procedure please. Obviously you have read my post and seen my dyno sheets and that is what I did and didnt see very much of an increase. I will be back on the dyno this Saturday to see if my computer has relearned with the new CAI and looking for improvements.
__________________ 2008 IOM G8 GT
Best ET: 13.81 Best MPH: 101.40 Best 60': 2.09
308.37hp/332.59tq stock on a Dyno Jet 1992 L98 CHP B4C
Best ET: 12.793 Best MPH: 103.97 Best 60': 1.649 DA 3059ft
SO, with your intake test, was the baseline done, and then the CAI bolted on directly and re-dynoed?? Explain your testing procedure please. Obviously you have read my post and seen my dyno sheets and that is what I did and didnt see very much of an increase. I will be back on the dyno this Saturday to see if my computer has relearned with the new CAI and looking for improvements.
The first test was running the car completely stock after bringing it to temperature.
The second test is stock with the Roto-Fab intake only.
The third test is with the Roto-Fab intake and Vector tuned.
The car was never removed from the dyno and all runs were performed the same morning. SAE correction factor is constantly updated.
It is very important to monitor engine temp and inlet air temp when performing A-B comparison tests. For example, at 30 degrees C the ECM removes .5 degrees timing and at 50 degrees C the ECM removes 4.0 degrees timing. On these engines 4 degrees is a decent HP decrease.
Last edited by Kirk@VectorMotorsports; 05-06-2008 at 11:39 AM.
My point is, my car had a cool down of approx 30-40 minutes before going on the dyno. Made 2 pulls. Stopped car on dyno, got out, put CAI while it cooled once again for 30mins while I worked. Got back in, made 2 more pulls. I would have to say my conditions were consistant and ideal for a test like this. So you are saying that you saw the instant 18-20hp increase right away correct?
__________________ 2008 IOM G8 GT
Best ET: 13.81 Best MPH: 101.40 Best 60': 2.09
308.37hp/332.59tq stock on a Dyno Jet 1992 L98 CHP B4C
Best ET: 12.793 Best MPH: 103.97 Best 60': 1.649 DA 3059ft
Do you guys use HPTuners or EFI Live? I was looking at doing my own tuning with HPTuners and I didn't know if you sold BIN files.
No, we have our own considerably more powerful software
Quote:
Originally Posted by 1992B4C
My point is, my car had a cool down of approx 30-40 minutes before going on the dyno. Made 2 pulls. Stopped car on dyno, got out, put CAI while it cooled once again for 30mins while I worked. Got back in, made 2 more pulls. I would have to say my conditions were consistant and ideal for a test like this. So you are saying that you saw the instant 18-20hp increase right away correct?
Yes the gains were immediate, the first pull we did we saw the increase and we did another one just to back them up which is whats published.
hmmmm........., but Kevin explained to me that they did several pulls when they came up with the final numbers they published. Guess I'll find out later. Just sucks that it isnt on the same day anymore for repeatability! Damn.
__________________ 2008 IOM G8 GT
Best ET: 13.81 Best MPH: 101.40 Best 60': 2.09
308.37hp/332.59tq stock on a Dyno Jet 1992 L98 CHP B4C
Best ET: 12.793 Best MPH: 103.97 Best 60': 1.649 DA 3059ft
did you adjust the tune for the intake? Or is this the same tune that is being shipped?
Thanks
The tune is optimized for the intake. The intake alone leaned the car out over 1/2 point A/F ratio. This combined with much less inlet depression is what makes this intake work so well.
Hold on there buddy, some of us are still waiting for our first go around.
LOL
Actually, this might work out great. I have a Magnaflow exhaust and the Rotofab intake on the way...
We are trying to get the FlashXpress systems out in a timely manner but we do have a limited number due to the cost. If you get this system PLEASE get it back in transit within 48 hours as the product page requires Thanks!
We are trying to get the FlashXpress systems out in a timely manner but we do have a limited number due to the cost. If you get this system PLEASE get it back in transit within 48 hours as the product page requires Thanks!
Absolutely.
I was just commenting that everything might work to my advantage, timing-wise.
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'08 Black on Black G8GT
12.166 @ 113.13, 1.72 - 60'
FasterProms Tune, Ported TB/Intake - HSRK - Vararam - UD Pulley - GRRRR8 Heater Hose Relocation Kit - ARH 1 3/4" Longtube System - Pypes Violators - Yank 3200 Converter - PCM4Less Trans Cooler - DashHawk - All Pedders Bushings, Xa Coil-Overs - BMR Trailing Arms - Billet Prototypes Catch Can - GXP Diffuser - Skinnies on GTO rims - ET Streets on F Body Rims - On the way: 3.70 Diff
Im just wondering what does everyone think about doing exhaust, I havent seen any exhaust mods really done. What do you think will happen with a free flowing louder exhaust, what kind of hp and would more mpg come from it? I know the stock exhause is way too quiet for me.
Excuse my ignorance, but how exactly does one go about properly reading a dyno graph or analyzing the numbers? Please note that i have a very limited understanding of how horsepower is actually calculated, so this post may make aboslutely no sense. Why are only the highest numbers looked at? Is this how horsepower is calculated in general by the dealer, they just determine the highest HP output at the corresponding Speed/RPM? So my car might only be outputting 320 Crank HP at 4000 RPM, but the full "361" at 5700 RPM?
Does anyone know the percentage loss this car gets from Crank HP to RWHP? Is there anyway to calculate this other than getting the car on a dyno and measuring HP at the Crank, then measuring HP at the wheels?
Are the weather conditions the only thing to blame for the original base RWHP of 306 (taken from VMS's original dyno test on the Tune post) and the RWHP of 289 on this more recent test? Seems like a huge difference just accounting for weather.
Finally, and this question is aimed at the VMS guys - I had my car in there for a tune about a week ago, if i bring the car back to have the CAI installed is there any chance i can make an appointment to get up on the dyno and get a printout of my car's specific numbers before/after? I think it'd be neat to have, and also to see how close we come to replicating the numbers. Thank you.
Are the weather conditions the only thing to blame for the original base RWHP of 306 (taken from VMS's original dyno test on the Tune post) and the RWHP of 289 on this more recent test? Seems like a huge difference just accounting for weather.
The weather and the fact this is a completely different car The 306 baseline came from a member on here that lives in Illinois.
Quote:
Finally, and this question is aimed at the VMS guys - I had my car in there for a tune about a week ago, if i bring the car back to have the CAI installed is there any chance i can make an appointment to get up on the dyno and get a printout of my car's specific numbers before/after? I think it'd be neat to have, and also to see how close we come to replicating the numbers. Thank you.
If you want to sure, you'll need to discuss the additional charges with Kirk prior though.
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Roto-Fab Intake and VMS Tune, what a combo!!!
The 306 baseline came from a member on here that lives in Illinois.
