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2007 Cobalt SS - TVS - ZZP Stg 3 Cams - Dyno

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Old 09-07-2014, 01:31 AM
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2007 Cobalt SS - TVS - ZZP Stg 3 Cams - Dyno

Dynoed the new engine recently

2.0 LSJ 86x86mm
Pistons: Diamond 10.5:1
Rods: Molnar H-Beams
Head: Ported | ZZP Stage 3 Cams | Supertech 75lb Springs
Intake: OTTP 3.5" | LS4 Throttle Body
Exhaust: ZZP Long Tube | 3" - 2.5" Catless Downpipe | ZZP 2.5 Catback
Supercharger: TVS 1320 | 2.9 Pulley | 20-21 PSI
Cooling Mods: Dual Pass
Fueling: Stock Pump Feeding OEM canister | AEM 320lhp in canister | FIC 1200cc Injectors | Boost Reference | Return Style | 60 psi Base | E85
Tune: 10.6-10.7 AFR | 21 Degrees Advance at 8,000
Other: Balanced Assembly | ATI Dampener | Electric Water Pump | Balance Shaft Delete

Shop temps: 95-100 Degree
IAT2: Started at 125-130 F.; ended at 160-170 F.

3" Downpipe on the shelf; 3" Trubendz with Borla XR-1 15x5 Muffler arriving 9/12/2014
Trying to hit 400whp before I engage the nitrous solenoid for more.

Added a couple more runs of previous setups on my car with the original engine.

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Old 09-07-2014, 02:15 AM
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Wow I like how the power is still rising at 8k can you run to 8500?
Old 09-07-2014, 02:31 AM
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I've ran it out to 9600 so far; I was running into knock issues with the IAT2 getting so high on the dyno.

The chambered 2.5"-2" zzp exhaust didn't help either

Soon as I bolt the 3" dp and catback on I'll rev it higher
Old 09-07-2014, 02:40 AM
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Wow, honda like.
Old 09-07-2014, 08:19 AM
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I didn't know you Ran an m90?! That's pretty cool. Do you have a link to a thread dedicated to that build?
Old 09-07-2014, 09:20 AM
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All that and only 364?
Old 09-07-2014, 09:43 AM
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Originally Posted by Blowncavy
All that and only 364?
He is still on a 2.9. I guess smaller pulley isn't going on due to iats? Throw some meth in the mix and go down to a 2.7 or 2.6?
Old 09-07-2014, 01:04 PM
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True
Guess the tvs 2.9 isnt all that impressive over an m62 lol
Old 09-07-2014, 01:06 PM
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Originally Posted by Blowncavy
True
Guess the tvs 2.9 isnt all that impressive over an m62 lol
Well it's 60hp so far...
Old 09-07-2014, 01:31 PM
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I know lol jk around
Old 09-07-2014, 01:33 PM
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Seems like better than average tvs numbers and there appears to be more in it good work definitely interested in n2o numbers
Old 09-07-2014, 01:45 PM
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What size shot will you use?
Old 09-07-2014, 01:47 PM
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nice numbers... tune looks a little fat. is there a reason for 10.6-10.7??? maybe because you're revving so high??

have you ran it leaner?
Old 09-07-2014, 01:48 PM
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50, 70, maybe 100
Old 09-07-2014, 01:51 PM
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Originally Posted by CobaltSS 16
nice numbers... tune looks a little fat. is there a reason for 10.6-10.7??? maybe because you're revving so high??

have you ran it leaner?
Had to keep the cylinders happy at 10.5:1
Outside temp was 95-100 F. With soaring iat2
Old 09-07-2014, 01:58 PM
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Originally Posted by REDi DEViSTATOR
I didn't know you Ran an m90?! That's pretty cool. Do you have a link to a thread dedicated to that build?
Yeah a few years ago
Old 09-07-2014, 02:01 PM
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I hope you can run a 100 well. Not sure it's worked out for anyone here yet
Old 09-07-2014, 02:09 PM
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I have a 100 psi nitrous inline regulator

Should work out ok, a long as bottle pressure stays above 100 psi
Old 09-07-2014, 02:17 PM
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Originally Posted by 100% METH
Yeah a few years ago
Yea i found the threads. Pretty cool! I'm glad to see someone actually running legit supercharged high compression pistons. Our ratio is a joke for what's bolted from the factory. Seriously, 10.5:1 is way better. Has anyone tried 11 or 12:1 on this platform yet?
Old 09-07-2014, 02:20 PM
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Tjolley
Old 09-07-2014, 02:25 PM
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Originally Posted by 574
Tjolley
Ah ok thanks. Doing searches not very specific gets me no where. That will help.
Old 09-07-2014, 05:43 PM
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Tjolley ran his 2.4 built 12.5:1 for a short while, but the zzp girdle failed
Old 09-07-2014, 05:50 PM
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75 shot is where its at seriously
Old 09-07-2014, 07:15 PM
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Damn I didn't know it was 12.5:1! That's a crazy ratio lol. I can see why the girdle failed. . Was it even sleeved? Well, obviously not lol.
Old 09-07-2014, 09:35 PM
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Zzps gen 2 block
Wasnt a good block

We now run an upgraded sleeve with a custom girdle similar to that of the gen 3 block


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