04-16-2021, 09:52 AM | #1 |
Drives: 2017 Camaro ZL1 A10 Join Date: Jan 2017
Location: Washington State
Posts: 83
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Bummed by dyno results - 2017 A10 2650
My son and I upgraded our 2017 A10 ZL1 with a Magnusson 2650R as our covid father son project. We took it to the dyno to see what it's at for power and the numbers came back a lot lower than I was expecting, pretty bummed about it actually.
Mods on the car:
Other details:
Results
Plans from here: I think I need to open things up to get more airflow so :
Goal: 680-700 WHP on 92 pump gas (for now) .
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2017 ZL1 Black, A10
Build: Magnuson 2650R, 103NW Throttle Body, Rotofab Big Gulp, Kooks 2" headers, Catless, AWE Touring exhaust, JRE Smooth Idle Cam, Katech Oil Pump, Elite Catch Can, JMS Fuel Booster |
04-16-2021, 10:11 AM | #2 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
You should add headers and a larger throttle body. I did 660 with 2650 swap with headers. Boost will also be high 15-16psi. That may be too much on 92. Are you getting knock retard ?
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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04-16-2021, 10:47 AM | #3 |
Drives: 18 Tahoe RST, 19 Z06 Join Date: Apr 2017
Location: Colorado Springs, CO
Posts: 327
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Seems low. I did 667 SAE with a 2300, NW 103, and a Big Gulp. This was with the supplied pulley at 12psi on 91 octane. I run a completely stock exhaust system.
Dynos differ though... |
04-16-2021, 10:50 AM | #4 |
Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,061
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Agreed. You need to allow the engine to compensate for the boost in air flow. A larger TB and LTs, GISI style cats and a free flowing exhaust.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me Two that wanna stone me One says she's a friend of mine... |
04-16-2021, 11:59 AM | #5 |
Petro-sexual
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My car's stock, except for what I note otherwise:
With the Maggie 90mm, and some typical intake-type stuff, I'm seeing 15-psi regularly, and when it's cold and dry, could get to 16 here and there. I've seen more than 19-psi spikes in really cold and dry weather (I'm also about sea level) but those were only a couple times with a little different deal. I have a ported (non-103mm) snout and the inlet is probably improved, even though I'm still seeing about 1.5" of vacuum at WOT. Magnuson, if I recall, call for about 14-psi with their kit with a 90, and I think that is quoted for the OEM intake box. With a little Racegas concentrate (whole 30-oz can), I'm blending 91-octane to about 93, and getting good timing. I believe 6th gear is going to report 20-30 less than 7th, so make sure you're referencing relative data. If I recall, the car Magnuson validated for CARB (M6-car) dyno'd around 640, so being an A10, your numbers don't seem bad, IMO. Not having a baseline doesn't quite give you a great comparison, but I doubt you have anything to worry about. I hear the Magnuson tune is quite conservative, and I can feet the TM kick-in, so there are improvements that can probably be found. JMO
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'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
04-16-2021, 12:03 PM | #6 |
Banned
Drives: 2021 Camaro 1LE Join Date: Mar 2021
Location: Florida
Posts: 151
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Dyno numbers should only be used to measure gains. They are different no matter the time of day, weather and dyno used. How does your butt dyno feel? And yes headers will make a HUGE difference. No cats obvi.
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04-16-2021, 01:31 PM | #7 | |
Drives: 2017 Camaro ZL1 A10 Join Date: Jan 2017
Location: Washington State
Posts: 83
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There was some knock on initial runs and it would drop the curve at the top end but after tuning it wasn't showing up again.
Quote:
Compared to before without the 2650, it definitely feels faster and loses traction easier than before. The canned tuned seem give most of the power increase at higher RPM ranges, very manageable in lower ranges. The custom tune brings on the power much earlier and it feels even more responsive/aggressive. From the butt dyno perspective it feels great, sounds great. I just want to make sure I get a better ROI on going to the 2650 so looks like I'll need to invest in the air flow around it. Question: if I go to the 103 throttle body and snout, would my standard rotofab connect with it or will I need an adapter? Just wondering if I can do this in stages. That said, I may just save up and big gulp, tb, and headers all at the same time. .
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2017 ZL1 Black, A10
Build: Magnuson 2650R, 103NW Throttle Body, Rotofab Big Gulp, Kooks 2" headers, Catless, AWE Touring exhaust, JRE Smooth Idle Cam, Katech Oil Pump, Elite Catch Can, JMS Fuel Booster |
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04-16-2021, 01:48 PM | #8 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
Big gulp not needed at your power level. It did nothing for me when i tried it at this power level. Go with the TB upgrade and headers, maybe even a larger upper pulley to drop boost a bit. More then likely he had to drop timing quite a bit which is another reason your making less power.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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04-16-2021, 04:22 PM | #9 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,067
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Big Gulp likely won't start to matter until you get to about 700whp or above. I concur that this setup needs a NW 103mm TB and 2" headers.
Last edited by Z OH 6; 04-16-2021 at 07:43 PM. |
04-16-2021, 05:26 PM | #10 |
Drives: '17 ZL1 M6 Join Date: Apr 2021
Location: Earth
Posts: 108
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Car is begging for long tubes and a 103mm TB
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04-16-2021, 07:43 PM | #11 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,067
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04-16-2021, 10:19 PM | #12 |
Drives: HBM ZLE Join Date: Aug 2017
Location: In the garage
Posts: 801
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With the headers and throttle body, boost should go down with less restriction from what I've read, please correct me if I'm wrong. Knock out 2 birds with one stone if your also after lowering the boost
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04-16-2021, 11:24 PM | #13 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
It will drop slightly. But no cam or headwork with that 90m pulley, hes looking at an easy 15-16psi. I was hitting 16 on pretty much same setup but with headers. Temp/Elevation does matter too. Any cam or other work in the future planned? That's when shell really open up. I dropped about 3lbs boost after cam/heads then added a 10% lower and i'm in the 14-15 range now.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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04-17-2021, 12:04 AM | #14 |
Drives: 2017 Camaro ZL1 A10 Join Date: Jan 2017
Location: Washington State
Posts: 83
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I'm not sure about doing a cam. I know it's probably the easiest way to get fuel to break past 700WHP but I'm not yet ready to open the engine internals and I'm not a fan of the motor boat sound that comes with it. Cool for some, not entirely my thing. That said, I will likely convince myself once I get used to the 670-700 power range. Never say never goes the saying right : )
__________________
2017 ZL1 Black, A10
Build: Magnuson 2650R, 103NW Throttle Body, Rotofab Big Gulp, Kooks 2" headers, Catless, AWE Touring exhaust, JRE Smooth Idle Cam, Katech Oil Pump, Elite Catch Can, JMS Fuel Booster |
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