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Old 09-11-2012, 02:31 PM   #1
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Guess how much power

So I got everything I need to start on the build and everything should be ready for a tune on Friday, I'm installing a HO procharger kit, and a Alky control meth kit. The car already has the 302 intake, kooks 3/4 headers, kooks or xpipe, Borla s type mufflers, with these mods it made 415/378 in 99 degree weather and high humidity. So what do u guys think will be my new numbers?
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Old 09-11-2012, 03:04 PM   #2
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How much psi you plan on runnin? What kind of gas are you tuning for?
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Old 09-11-2012, 03:11 PM   #3
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93 and I'm using a boost controller so it's going to have an 15psi pulley but the wastegate set at 7.5 psi so I can get to that mark sooner. Dont know if I explain that right lol
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Old 09-11-2012, 03:22 PM   #4
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Wow, 15psi is quite a lot, ~675 hp I bet
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Old 09-11-2012, 03:35 PM   #5
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I'm not going to be running 15psi only around 7 the wastegate will open and let out the rest all this is doing is making 7 psi alot sooner instead of waiting to 7k rpm to make full potential
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Old 09-11-2012, 03:53 PM   #6
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Gotcha didn't catch that part, then probably ~575 hp
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Old 09-11-2012, 03:57 PM   #7
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Quote:
Originally Posted by Eacastano7
I'm not going to be running 15psi only around 7 the wastegate will open and let out the rest all this is doing is making 7 psi alot sooner instead of waiting to 7k rpm to make full potential
I am guessing range between 550-570. 93 octane tune will help but the fact the mustang has a two piece with a carrier bearing drive shaft the u will still have a 12-15 percent loss from flywheel to rear wheels.
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Old 09-11-2012, 04:01 PM   #8
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+1 570-575. These cars seem to make about 20whp per #. I'm at 635 with 10#s. same mods except boss im
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Old 09-11-2012, 04:50 PM   #9
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Good call I am at 608 with 9 and a 92 octane tune. Each octane point accounts for 20 hp
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Old 09-11-2012, 05:48 PM   #10
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Waste gate? Those are for turbo applications and they control the exhaust flow to the turbine. I wasn't aware of that being used on superchargers. Only bypass valves which open and close to either release boost or not. Did not know you could adjust boost from a centrifugal supercharger with anything but a pulley?? I could be all wrong?? Either way I'd say low 600s with 7-8lbs and water/meth.
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Old 09-11-2012, 05:51 PM   #11
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Agreed^ don't know everything about supercharges but I know that many PD blowers have bypass valves. OP, these can also be used to prevent too much boost?
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Old 09-11-2012, 05:57 PM   #12
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He must be speaking of a bypass valve. But those release pressure when you let off the throttle. I would throw caution in the wind and ask the question is the pulley going to be throwing 15 psi of boost to the engine because if ur stock you will end up blowing out your bottom end.
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Old 09-11-2012, 05:59 PM   #13
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Quote:
Originally Posted by gregtommy
He must be speaking of a bypass valve. But those release pressure when you let off the throttle. I would throw caution in the wind and ask the question is the pulley going to be throwing 15 psi of boost to the engine because if ur stock you will end up blowing out your bottom end.
Exactly they are either open or closed but don't control how much boost you push to the engine.
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Old 09-11-2012, 06:21 PM   #14
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Re: Guess how much power

you can do a wastegate setup jus like a turbo car on a supercharged centri car as well! It does the same thing as a turbo car! bleeds off the extra boost into the atmosphere and only lets the desired amount of boost to go by! you put it right after the blower or right after the intercooler before the bypass valve!!!

Hope that helps some people!
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Old 09-11-2012, 06:22 PM   #15
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I believe you can add a wastegate. You then program it to bleed off boost where ever you set it. You have to use a small *** pulley though so if it fails you're in trouble. Example being like the op stated: run a 15# pulley and have the
wastegate open at 7#s. So if you have a 15# pulley you're reaching max boost around 7000rpm for example. That would mean you'd probably reach 7#s of boost at ~4000rpm which is when the wastegate would bleed the rest of that boost and hold at 7#s. This way you're running full boost from 4k(just a guess) to redline. Where as if you only run a 7# pulley you don't reach it till around 6500.
Hope that makes sense.
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Old 09-11-2012, 06:38 PM   #16
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Quote:
Originally Posted by Black5.0
I believe you can add a wastegate. You then program it to bleed off boost where ever you set it. You have to use a small *** pulley though so if it fails you're in trouble. Example being like the op stated: run a 15# pulley and have the
wastegate open at 7#s. So if you have a 15# pulley you're reaching max boost around 7000rpm for example. That would mean you'd probably reach 7#s of boost at ~4000rpm which is when the wastegate would bleed the rest of that boost and hold at 7#s. This way you're running full boost from 4k(just a guess) to redline. Where as if you only run a 7# pulley you don't reach it till around 6500.
Hope that makes sense.
Probably feel to a PD blower with that setup.
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Old 09-11-2012, 06:50 PM   #17
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Yeah, kinds like a poor mans pd
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Old 09-11-2012, 07:00 PM   #18
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Quote:
Originally Posted by Black5.0
I believe you can add a wastegate. You then program it to bleed off boost where ever you set it. You have to use a small *** pulley though so if it fails you're in trouble. Example being like the op stated: run a 15# pulley and have the
wastegate open at 7#s. So if you have a 15# pulley you're reaching max boost around 7000rpm for example. That would mean you'd probably reach 7#s of boost at ~4000rpm which is when the wastegate would bleed the rest of that boost and hold at 7#s. This way you're running full boost from 4k(just a guess) to redline. Where as if you only run a 7# pulley you don't reach it till around 6500.
Hope that makes sense.
You are right my friend
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Old 09-11-2012, 07:07 PM   #19
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Why don't you see this setup more often?
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Old 09-11-2012, 07:12 PM   #20
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My guess is that if you're tuned for 7 psi and the wastegate fails, unless you figure it out before hand next time you run your car out it'll be at 15 psi. That's just my guess
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Old 09-11-2012, 07:28 PM   #21
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Well a boost gauge should tell you if it goes higher right?
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Old 09-11-2012, 07:41 PM   #22
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Quote:
Originally Posted by Mweigt07
Well a boost gauge should tell you if it goes higher right?
Yes both my boost controller and and my aeroforce have warning lights

---------- Post added at 08:41 PM ---------- Previous post was at 08:39 PM ----------

And also the meth kit has a low level warning
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Old 09-11-2012, 07:42 PM   #23
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Then no worries sounds like a dyno is in order to see the torque numbers to see how it really compares to pd
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Old 09-11-2012, 08:06 PM   #24
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Quote:
Originally Posted by Mweigt07
Then no worries sounds like a dyno is in order to see the torque numbers to see how it really compares to pd
Friday we shall see
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Old 09-12-2012, 04:16 PM   #25
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What meth kit are you running?
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Old 09-12-2012, 05:26 PM   #26
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This setup just seems like there is too many things that can go wrong between the wastegate, boost controller, and meth kit.
I sure there is several reasons why we don't see this setup more often, primarily because it's too dangerous. Especially for stock block and stock internals.
The beauty of the centri blower is that the power is up high so that 90% of your normal driving isn't putting terminal stress on your engine.
I see 4k rpm multiple times a day in my car. And if at 4k I was making peak power that was around the so called safe limit for the coyotes internals, I would think that your life expectancy of your engine will significantly be decreased.
If you were seeking that kind of power that soon, why did you not go with a pd setup?
I really feel your power is going to feel to flat if this works. And you will probably lose a lot of your top end. Your going to be asking more out of the engine and only getting half the return. Plus the looming cloud of what ifs with the all the different systems trying to work hand and hand.
Your systems may have warning lights but at that point it's already to late. A 7psi spike in boost pressure at WOT or a meth kit failure is a death sentence.
Good luck.
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Old 09-12-2012, 06:23 PM   #27
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If anything, meth kit would probably fail first. I've never had a waste gate fail on many over many years. With two fail safes, both with warning signals, you should be fine.
I've had bad experiences with meth kits on my turbo cars. Definitely one item to spend extra to get quality.
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Old 09-12-2012, 06:39 PM   #28
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I was contemplating meth for my set up. I'm tuned by Brenspeed and they said they wouldn't even tune for it. Said your risking you're engine on a little aftermarket pump. That was enough to make me say forget it.
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Old 09-12-2012, 08:14 PM   #29
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I know what your are saying the boost controller also has a fail safe that if wastegate fails it automatically goes to wastegate spring pressure which is 4psi. Also I'm going to have three tunes one for no meth, one for dd and a little more aggressive one. I also baby this car alot to b honest with you I shift right around 3k. Plus this engines are fairly new we don't know alot about them and yes they can hold alot of power but for how long? And at the end of the day we all mod our cars knowing that there is danger behind it, I'm hoping this setup works well and it last me a while but we will see.
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Old 09-12-2012, 08:33 PM   #30
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I like your setup a lot minus the meth, but I understand it's a fail safe for you. Please keep updating as I'm going centri as well.
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Old 09-12-2012, 08:58 PM   #31
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I looked at alot of meth kit and Alky was by far the most helpful and looked that they where high quality. I actually went to his shop and he built the kit in front of me very high quality stuff and very helpful. I think alot of people haven't ran this setups one because the extra money it cost and people are scared of it but we will see. The reason I didnt want a root sc is because I didn't want to lose my intake
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Old 09-12-2012, 09:15 PM   #32
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I went with devils own and had a lot trouble with the failsafe solenoid. Never had pump problems. I was running 100% meth. If your kit is quality, you shouldn't have any problems. Can you share a link to your kit?
Also, will you be using boost juice or something similar to that meth dilution?
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Old 09-12-2012, 09:25 PM   #33
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http://www.alkycontrol.com/ and I'm running 100% meth
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Old 09-13-2012, 09:37 AM   #34
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Good luck keep us posted. Some of us really keep an eye on these details and you are getting heavier then most of us in this set up.
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Old 09-13-2012, 01:20 PM   #35
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I'd be a nervous wreck driving that setup. Too many points of failure for me... but it sounds like you are aware of all the risks and have the appropriate gauges.
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