questions on idle/surging and bog between shifts on new supercharger install - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

V8only · 03-29-2018, 05:38 PM

Hi, I'm new to the world of superchargers. I've got a kraftwerks supercharger installed on my 12ss. Car is completely stock other then that. BTW, kit was professionally installed by them actually, and I couldn't be happier with it. I'm just trying to get it dialed in now

I'm getting a slight fluctuation at idle of about 50-75 rpms. Additionally, that cold "surge" that most experience on m6 camaros on first startup is 10x worse, it'll buck and surge in any gear until completely warm.

Finally, last question, it falls flat on a fast shift between gears under heavy throttle. If I hit it hard, not necessarily full throttle, and quickly shift into the next gear, it'll hesitate before going again. I cannot shift fast without it bogging unless I leave my foot on the gas.

Finally it had a p0442 (small thermactor leak) code before we started. I don't
"believe" this would result in a vacuum leak, but even if it did, it seems it would be a very small one.

I'm just running the base tune.

So does this sound like a tuning issue? I'm completely new to this, and before putting another $650 on a custom tune, I just want to make sure I have all my bases covered.

Thanks

hunter1660 · 03-29-2018, 08:13 PM

What did you use to tune the car with? You need to data log it. If they... Professionally installed it....have them professionally tune it

Pro-tuned · 03-29-2018, 10:42 PM

You need to tune...
Small vacuume or exhaust leaks upstream of CATS will have adverse affects on performance this will be identified during logs.

WheelMan69 · 03-30-2018, 07:57 AM

Yea man get that thing on a dyno and get it tuned to work out those kinks! If you were tuned by a handheld Ehhhh.. I would still want it on a dyno and tuned by a reputable tuner. And look for boost leaks I don't know if you can do a boost leak on a Supercharged system only seen it done with turbo.

sscamaro · 03-30-2018, 12:02 PM

I'm sure a dyno tune would help.

Bildo · 03-30-2018, 12:08 PM

yes low speed tune needs to be addressed, mine did the same thing after just a cam, a competent tuner can fix easily.

V8only · 04-03-2018, 03:39 PM

thanks all..didn't see these replies until now.

The kit came with the "base" tune only, so it was expected and informed that a professional dyno tune is highly suggested

I just want to make sure that there is nothing mechanical before I go in for my tune.

Guess it's time to drop the rear diff so I can get to that $20 vent valve for the thermactor system. UGH. Then tune time

stevieturbo · 04-04-2018, 04:46 PM

It doesnt need a dyno tune...but it does need tuned properly. That could be achieved on road or dyno.

03-29-2018, 05:38 PM	#1
V8only Drives: 2012 camaro 45th 2ss/rs Centri SC Join Date: Nov 2016 Location: So cal Posts: 136	questions on idle/surging and bog between shifts on new supercharger install Hi, I'm new to the world of superchargers. I've got a kraftwerks supercharger installed on my 12ss. Car is completely stock other then that. BTW, kit was professionally installed by them actually, and I couldn't be happier with it. I'm just trying to get it dialed in now I'm getting a slight fluctuation at idle of about 50-75 rpms. Additionally, that cold "surge" that most experience on m6 camaros on first startup is 10x worse, it'll buck and surge in any gear until completely warm. Finally, last question, it falls flat on a fast shift between gears under heavy throttle. If I hit it hard, not necessarily full throttle, and quickly shift into the next gear, it'll hesitate before going again. I cannot shift fast without it bogging unless I leave my foot on the gas. Finally it had a p0442 (small thermactor leak) code before we started. I don't "believe" this would result in a vacuum leak, but even if it did, it seems it would be a very small one. I'm just running the base tune. So does this sound like a tuning issue? I'm completely new to this, and before putting another $650 on a custom tune, I just want to make sure I have all my bases covered. Thanks __________________ Jeremy -2012 Camaro SS 45th M6-Kraftwerks Supercharger -2003 Avalanche z71-6" on 35's. DD 290k miles -66 mustang fuel injected resto-mod

03-29-2018, 08:13 PM	#2
hunter1660 Drives: 2011ss/rs camaro Join Date: Sep 2011 Location: florida Posts: 1,261	What did you use to tune the car with? You need to data log it. If they... Professionally installed it....have them professionally tune it __________________ . OBX LTH,Rotofab,Magnuson Heartbeat.AEM wideband, HP Tuners

03-29-2018, 10:42 PM	#3
Pro-tuned Angewendet Ingenieur Drives: 14 Camaro ZL1 Join Date: Apr 2015 Location: USA Posts: 401	You need to tune... Small vacuume or exhaust leaks upstream of CATS will have adverse affects on performance this will be identified during logs. __________________ ———— LQ9, Iron Block, Forged internals, 408CI, Jannetty custom cam, TS short block, Whipple, Hardened Jackshaft, PRC 260, 2X3 Dynatech Full Competition, HF Cats, CAI, NW 103, Chee, ID 1300, COPO Breather, MSD, Fore Dual Pump, ultratorque, E85, dual Meth, True Trac, 3:45, 1500hp axle-shafts, DSS CF, BMR, custom Pearl/Candy paint by Jaidah.

03-30-2018, 07:57 AM	#4
WheelMan69 Drives: 2015 SS/A6 Join Date: Feb 2016 Location: South Florida Posts: 101	Yea man get that thing on a dyno and get it tuned to work out those kinks! If you were tuned by a handheld Ehhhh.. I would still want it on a dyno and tuned by a reputable tuner. And look for boost leaks I don't know if you can do a boost leak on a Supercharged system only seen it done with turbo. __________________ 2015 Camaro SS/A6--Roxy MOD'S Rear Muffler Delete VMAX Throttle Body Speed-Engineering Headers / No Cats Catted Magnaflow X-Pipe BMR Toe Rods BMR Xtreme Ant-Roll Kit BMR Trailing Arms CAI Cold Air Intake *TUNED BY JAY @ KRAFTSWORKS EXCELL

03-30-2018, 12:02 PM	#5
sscamaro Drives: 2010 2SS, 2017 Silverado LTZ Join Date: Jan 2007 Location: Denver,PA Posts: 3,195 View My Garage	I'm sure a dyno tune would help. __________________ 2010 2SS/RS Victory Red, MN6, 1-7/8 Kooks LT Headers, SLP Axle Back, Edelbrock E-Force S/C, ZL1 Fuel Pump, 72# Injectors, JRE fuel rail upgrade, Roto-Fab CAI, Elite Catch Can, Billet Hurst Shifter, DSS 1000HP axles, Spohn Trailing Arms, Toe Links, Lower Control Arms. Chrome American Racing Torq-Thrust wheels. 546/rwhp & 522/rwtq & 10.9# boost Tune by Jeremy Formato.

03-30-2018, 12:08 PM	#6
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	yes low speed tune needs to be addressed, mine did the same thing after just a cam, a competent tuner can fix easily. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

04-03-2018, 03:39 PM	#7
V8only Drives: 2012 camaro 45th 2ss/rs Centri SC Join Date: Nov 2016 Location: So cal Posts: 136	thanks all..didn't see these replies until now. The kit came with the "base" tune only, so it was expected and informed that a professional dyno tune is highly suggested I just want to make sure that there is nothing mechanical before I go in for my tune. Guess it's time to drop the rear diff so I can get to that $20 vent valve for the thermactor system. UGH. Then tune time __________________ Jeremy -2012 Camaro SS 45th M6-Kraftwerks Supercharger -2003 Avalanche z71-6" on 35's. DD 290k miles -66 mustang fuel injected resto-mod

04-04-2018, 04:46 PM	#8
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	It doesnt need a dyno tune...but it does need tuned properly. That could be achieved on road or dyno.