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Old 08-16-2014, 02:43 AM   #1
DaFisch

 
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Do these numbers make sense?

I won't say the shop name but my car made 505 rwhp with the turbonetics turbo kit. Here is what it has done
A l99 to ls3 conversion with a cam (115+ so works with forced induction)
3200 yank stall
full custom exhaust
85 lb injectors
ADM FPCM
zl1 fuel pump
102 Fast Intake Manifold
Several Upgraded components on turbo kit. I don't know what psi they set it at, I pick up tomorrow but I assume 8 psi.
Does that sound good or kind of low to you?
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Old 08-16-2014, 11:22 AM   #2
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your stall will hold some hp back but not familiar with your kit , seems low, but I have a L99 to ls3 conversion, Maggie with 8lbs boost , cam/headers/cai... with 22's on the back,,, and made 586 rwhp.
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Old 08-16-2014, 11:49 AM   #3
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if you still have your cats that's holding back power too. im not sure how much the auto drives down your hp #. mine was measured on a mustang dyno.
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Old 08-17-2014, 02:59 PM   #4
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I am not running any cats
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Old 08-17-2014, 03:04 PM   #5
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Single or twins? Turbo size? Boost?

Lots of factors can influence your power level. Maybe they have it on a very safe tune.

My camaro has pretty much same mods as you except stall and I'm running a maggie ... at 7-8psi i was around 580~whp.
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Old 08-17-2014, 04:06 PM   #6
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Turbonetics is a single up top with U turn headers.

Seems way low but hard to say. I know all the AGP kits at 10-11psi are doing ~650rwhp on l99 autos with no other mods. No cam, no ls3 conversion, nothing but turbos and the fuel system to support that boost.
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Old 08-17-2014, 09:00 PM   #7
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Yeah I was hoping for over 600 they did say the tune conservatively. I am going to add heads at another shop and have them retune then
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Old 08-17-2014, 10:40 PM   #8
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Quote:
Originally Posted by DaFisch View Post
Yeah I was hoping for over 600 they did say the tune conservatively. I am going to add heads at another shop and have them retune then
Without more info, we're just guessing why your car produced those dyno numbers.

'Conservatively' is a bit subjective.
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Old 08-17-2014, 11:29 PM   #9
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Once again...get a base dyno and look at the gain...that's what you are after.
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Old 08-18-2014, 09:36 AM   #10
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Something is not right.
thats what the kit makes stock with the can tune @ 5.5-6 psi
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Old 08-18-2014, 10:41 AM   #11
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sounds like your on a VERY low PSI.

just about any kit we install with 8-9 PSI and ls3 conversion will do in the 640-680 RWHP range with a stall also. 91 OCT fuel will knock out about 20-30 RWHP if your a 91oct state.
the cam has alot to do with the HP gains also. our stg 2 FI cam nets usually 80RWHP with just the cam on a FI car.

We need more info.
PSI
CAM specs
kind of dyno

still its just a number no matter what. take it out to the track see what she traps that will tell you true HP
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Old 08-18-2014, 10:49 AM   #12
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Sounds a bit low, is it the single disc or triple disc yank. If it wasn't locked up at WOT that will affect the HP numbers on the dyno some.
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Old 08-18-2014, 11:19 AM   #13
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Base dyne was a 455 with following mods
3200 yank stall
ported throttle body
ls3 conversion done by Speed Inc
Custom Ground Comp cam by Speed Inc

What was added
102 intake manifold
zl1 fuel pump
adm fpcm
85 lb injectors
turbonetics turbo kit
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Old 08-18-2014, 11:23 AM   #14
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you can also check the springs in your wastegates, make sure you are using the correct ones.
Blue Stripes = 5psi
white stripes= 7psi
Red Stripes = 9 psi

with no additional preload from the set screw.
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Old 08-18-2014, 11:24 AM   #15
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I asked the builder the psi and dyno type. I am away at school and my girlfriend picked the car up for me so when I hear back from Blackdog I'll let you all know. Here are the cam specs
Comp LS3 Custom 227/239 .614/.624 115+3
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Old 08-18-2014, 11:26 AM   #16
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If you only went from 455 to a hair over 500 by adding a turbo kit... I'd have to tell you to look for a boost leak, or reason its not building boost. You need to verify what your boost level was on the dyno run. Still curious if the yank is single or triple disc.
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Old 08-18-2014, 12:00 PM   #17
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Let me find out for you. I forgot to mention they took off my stainless works lt's & high flows for the stock manifolds without cats
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Old 08-19-2014, 08:45 PM   #18
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Turbo = 50 hp , sounds way low .
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Old 08-19-2014, 09:57 PM   #19
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Did you find out what the peak boost was?
As Nickey Tuner mentioned, a single disk converter won't handle a WOT lockup, and will have excessive slippage.
What mufflers are you running? If they are a chambered muffler, then you should replace them.
That cam is very good for a supercharger, but isn't ideal for your turbo combo.
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Old 08-19-2014, 10:06 PM   #20
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"The car is pushing 5.5 psi. We have a Dyno Dynamics dyno."
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Old 08-19-2014, 10:24 PM   #21
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5.5psi is pretty low. I'm curious about the mufflers and which Yank converter you're running.
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Old 08-19-2014, 11:03 PM   #22
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I asked my builder what yank I have, speed inc purchased and did the install so when I know I'll let you know. It was 760$ if that helps at all. Yeah, I was hoping to push 9 or 10 psi. As for mufflers I have the SLP loudmouth 2
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Old 08-20-2014, 09:48 AM   #23
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thats going to be a single disc, No Lockup at WOT.
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Old 08-20-2014, 09:55 AM   #24
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2 things. The converter can't handle WOY lockup and the boost is too low. Way too low for that cam.
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Old 08-20-2014, 11:25 AM   #25
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@nickey should I change it? I talked to Tony at Speed Inc since he did my ls3 conversion and cam and I think I'm going to change my injectors/get an electronic boost gauge and retune this winter, shooting for 700hp
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