silverado 6.2L numbers
08-01-2015, 04:27 PM
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silverado 6.2L numbers
hi, this is my first post on here so not really to sure if this is where this belongs or not? but I have a 2012 Silverado ext. cab short bed 4x4 6.2L that I have a Maggie tvs1900 on running about 8psi, a texas speed vvt2 cam, circle-d multi disk 3400 stall converter, arh 1 3/4" long tube headers, hi flow cats and borla cat back. it has the rough country 2.5" level lift on a 285/70r17 mud tire. I got it dyno tuned and she put down 465hp and 508 ft. lbs. I was hoping to get a little higher numbers out of this set up... do those numbers seem right to the rest of you fellas with close set ups? thanks!
08-01-2015, 05:33 PM
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ive dyno'd a stock 6.2 with a tune and it was around 335 rwhp and 380 rwhp torque on a dynojet
8psi should net ya 20 rwhp per psi from a small blower like that
you have small headers for a 6.2, cats that are hurting ya some and depending on size of Y pipe and catback that may be hurting ya
also that small blower is a heat pump so they are probably keeping timing to say 10 or 12*
8psi should net ya 20 rwhp per psi from a small blower like that
you have small headers for a 6.2, cats that are hurting ya some and depending on size of Y pipe and catback that may be hurting ya
also that small blower is a heat pump so they are probably keeping timing to say 10 or 12*
08-01-2015, 05:55 PM
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ya I was hoping for 550rwhp out of it... 465 seems very low. I was figuring on 330 rwhp stock plus 160rwhp from the blower, cam claims 70rwhp, then headers and hi flow cats and exhaust was sayin 30-40rwhp and a locked up converter at wot should help #'s too. the y pipe is 3" going into a 3.5" collector then a 3.5" single borla cat back.
08-02-2015, 08:28 PM
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Numbers seem way low to me...I had a 2011 CC 2wd 6.2 with ARH long tubes and a tune and made 380 to the tire on a dynojet...seems 8psi and a cam should net a lot more than 80hp more to the wheels..
08-02-2015, 09:38 PM
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Seems on the low side to me, and I'm guessing it's all in your tune. Are you running the factory fuel system? If your truck is not a flex fuel your already maxing out your injectors/pump. I think the flex fuel injectors are 52lb, so if your truck is FF your close to maxing them out anyways... May have something to do with it?
08-03-2015, 02:17 PM
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Seems on the low side to me, and I'm guessing it's all in your tune. Are you running the factory fuel system? If your truck is not a flex fuel your already maxing out your injectors/pump. I think the flex fuel injectors are 52lb, so if your truck is FF your close to maxing them out anyways... May have something to do with it?
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08-03-2015, 09:57 PM
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The maggie blower came with injectors that I believe are 65 lb. and it's on the stock flex fuel pump. It was tuned when I took it to get a dyno tune it was stalling and rpm dipping and jumping coming to a stop. They picked me up 17hp and 72ft lbs on the dyno tune from tuning and locking up the converter. I believe they took it up to 6500rpm on the dyno. And I really wasn't happy with those #'s but the guy at the shop told me my mud tires are heavy really killing dyno #'s but I can't see a tire eating up 100hp that I was hoping for more haha. Thanks for all the replys though guys!