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Old 04-13-2015, 08:52 PM   #1
polarisiq93
 
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dyno number guesses ?

hey guys my car is getting id 850 injectors and tune this week, along with these previous mods already on the car; 2.55 sc pulley, air aid intake, 160 t stat, kooks headers with high flows, corsa cat back. can anyone guess what it might dyno at ? the car is a manual
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Old 04-13-2015, 09:08 PM   #2
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585-600
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Old 04-13-2015, 09:09 PM   #3
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Old 04-13-2015, 09:12 PM   #4
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Assuming 490rwhp stock, 572rwhp w/mods.
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Old 04-14-2015, 04:16 PM   #5
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He said I am only running 9lbs of boost with the 2.55 upper pulley. He recommended to me that I put a 10% lower pulley on also. Does anyone know why boost would be that low ? I know the long tubes affect it but I figured it would be around 11 lbs
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Old 04-14-2015, 04:19 PM   #6
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what's your elevation
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Old 04-14-2015, 04:26 PM   #7
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what's your elevation

About 600 feet above sea level
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Old 04-14-2015, 06:01 PM   #8
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560
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Old 04-14-2015, 08:25 PM   #9
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it dyno'd 560 I'm told. he still has the car he's gonna look at it again in the morning, just kind of surprised i thought it would make more boost
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Old 04-14-2015, 09:00 PM   #10
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Originally Posted by polarisiq93 View Post
it dyno'd 560 I'm told. he still has the car he's gonna look at it again in the morning, just kind of surprised i thought it would make more boost
Boost is just a measure of pressure, not volume of air. Low boost high volume is a good thing, don't sweat it! I would have guessed a higher hp, but without a baseline it's hard to tell if it's just the dyno.
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Old 04-14-2015, 09:14 PM   #11
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Boost is just a measure of pressure, not volume of air. Low boost high volume is a good thing, don't sweat it! I would have guessed a higher hp, but without a baseline it's hard to tell if it's just the dyno.

Ya unfortunately I don't have a baseline of the car I bought it with previous mods on it off a friend. I will find out more tomorrow when I pick it up
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Old 04-15-2015, 06:29 AM   #12
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I have the same mods you have minus the exhaust work and my car is making 15 lbs of boost. I cant remember the technical terms for the adjustment, but I will do my best to describe it , and then I am sure someone else on here will be able to better clarify it for you. So it is an adjustment you can do to the stop screw positioning plate that allows the air going into the supercharge not to bleed by. It is a 5 minute adjustment and you will almost certainly pick up around 2-3 lbs of boost. I went from 12-13 to 15. look into it, it sounds like your factory setting has a little more play in it. glta
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Old 04-15-2015, 07:44 AM   #13
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Originally Posted by Emvici View Post
I have the same mods you have minus the exhaust work and my car is making 15 lbs of boost. I cant remember the technical terms for the adjustment, but I will do my best to describe it , and then I am sure someone else on here will be able to better clarify it for you. So it is an adjustment you can do to the stop screw positioning plate that allows the air going into the supercharge not to bleed by. It is a 5 minute adjustment and you will almost certainly pick up around 2-3 lbs of boost. I went from 12-13 to 15. look into it, it sounds like your factory setting has a little more play in it. glta

That makes sense, my tuner even said he expected to see 11-12 lbs out of my car. I'll ask him if he's familiar with that plate
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Old 04-15-2015, 08:53 AM   #14
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Quote:
Originally Posted by Emvici View Post
I have the same mods you have minus the exhaust work and my car is making 15 lbs of boost. I cant remember the technical terms for the adjustment, but I will do my best to describe it , and then I am sure someone else on here will be able to better clarify it for you. So it is an adjustment you can do to the stop screw positioning plate that allows the air going into the supercharge not to bleed by. It is a 5 minute adjustment and you will almost certainly pick up around 2-3 lbs of boost. I went from 12-13 to 15. look into it, it sounds like your factory setting has a little more play in it. glta
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That makes sense, my tuner even said he expected to see 11-12 lbs out of my car. I'll ask him if he's familiar with that plate
Here's the thread I believe your talking about.
Free boost mod
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Old 04-15-2015, 10:24 AM   #15
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he is just going to add 10% crank pulley to get some boost back. the 2" headers are the main cause of drop in boost he says
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Old 04-15-2015, 06:36 PM   #16
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10%

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he is just going to add 10% crank pulley to get some boost back. the 2" headers are the main cause of drop in boost he says
Then you will be at at about 586......
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Old 04-16-2015, 07:55 PM   #17
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Here is the final dyno sheet, didn't go with the 10 percent lower yet
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Old 04-16-2015, 09:21 PM   #18
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Hmmmm, I'm sitting at 555rwhp with only AR 1 7/8 Headers with high flows, stock exhaust with Bi-mode locked open, Roto-Fab CAI, and a tune. Interesting numbers. I agree with your surprise...
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Old Yesterday, 08:27 AM   #19
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Originally Posted by Inkedheretic View Post
Hmmmm, I'm sitting at 555rwhp with only AR 1 7/8 Headers with high flows, stock exhaust with Bi-mode locked open, Roto-Fab CAI, and a tune. Interesting numbers. I agree with your surprise...
i agree definitely thought i would be around 590-600. but the car drives great with the tune I'm happy with it for now
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Old Yesterday, 10:20 AM   #20
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Dyno is just a tool. Some dynos are happier than others.
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Old Yesterday, 06:44 PM   #21
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thats it

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Dyno is just a tool. Some dynos are happier than others.
for sure on that
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