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Vortech with a wastegate, will it work?

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Old Nov 9, 2007 | 10:20 AM
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Default Vortech with a wastegate, will it work?

Ok guys, i've been trying to find more info on this setup which FranksBAG is running with his Vortech setup, but no luck.

I want to be able to run a 2.87 pulley with the ability to adjust boost. My goal is to have the better low end of the smaller pulley but hold 10psi to redline instead of reaching almost 13psi. I am on a stock block and think this would make me more comfortable until I build the motor.

Heres my idea: To acheive this, I would place a wastegate on one of the chargepipes after the bypass valve to regulate the pressurized air. Within the wastegate would be a .7 bar spring (10.1 psi). Once the supercharger reaches 10psi, the wastegate would open to create a minor boost leak in order to limit psi to 10 and not build any further. You could then include a boost controller in the setup to control when the wastegate opens, thus having the ability to control boost .

I've asked around to see if this is a possibility, everyone thinks i'm crazy . I know its possible as a few on the boards have done this, but I can't get a hold of any of them. The only issue I foresee is the wastegate's ability to consistantly open and close as needed to hold a constant psi. When the wastegate opens, it could possibly just let all the psi out and not hold like planned.

Is this a possibility? Or am I missing something in the equation here as to how the others got it to work? Any input will help.

Thanks
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Old Nov 9, 2007 | 10:23 AM
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it will let all the psi out... i beleive... because if this would work then every single supercharger out there would have this. and turbo cars would be obsolete.
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Old Nov 9, 2007 | 10:49 AM
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Originally Posted by MUZZY
it will let all the psi out... i beleive... because if this would work then every single supercharger out there would have this. and turbo cars would be obsolete.

not sure I agree


there was one guy who had a setup like that working. Other people looked into it or tried, but gave up. It's possible though
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Old Nov 9, 2007 | 10:53 AM
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Instead of a wastegate, what if you used a larger Bypass Value as a secondary to act as a wastegate?
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Old Nov 9, 2007 | 11:04 AM
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i'm interested in the same thing. google searches reveal that it does work on other cars. BOV on 1 side of intercooler and wastegate on other side. The cars i saw were indeed using a EBC. However at the price of 300$ or more for a wastegate, there's plenty of other more pressing issues.
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Old Nov 9, 2007 | 11:06 AM
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i tought the wastegate would be right next to the BPV. now ur saying on ither end of the intercooler?

interesting........ this could be possible now. my head hurts
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Old Nov 9, 2007 | 12:45 PM
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Originally Posted by sentry65

not sure I agree


there was one guy who had a setup like that working. Other people looked into it or tried, but gave up. It's possible though

I know, I wish that one of the people that made this work could chime in here
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Old Nov 9, 2007 | 02:46 PM
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somebody here did it, ill search for the thread.

http://g35driver.com/forums/showthread.php?t=33654

Last edited by tig488; Nov 9, 2007 at 03:11 PM.
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Old Nov 9, 2007 | 03:22 PM
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Originally Posted by tig488
somebody here did it, ill search for the thread.

http://g35driver.com/forums/showthread.php?t=33654
Good stuff! Thanks! Too bad the pictures are too old to see anymore .
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Old Nov 9, 2007 | 03:36 PM
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Originally Posted by tig488
somebody here did it, ill search for the thread.

http://g35driver.com/forums/showthread.php?t=33654
I tried to pm the OP in that thread and their pm box is full . They are still active on these boards with a post as recent as yesterday, no luck for me. Anyone else? lol
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Old Nov 9, 2007 | 03:47 PM
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shoot him an email. It's under his profile.
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Old Nov 9, 2007 | 04:12 PM
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Originally Posted by istan
shoot him an email. It's under his profile.
I didn't catch that, I will have to do so!
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Old Nov 9, 2007 | 04:14 PM
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It works using a wastegate!

there was a recent article where they did it on a procharger. it was in one of the mustang mags I believe. They set it up run at 14 psi for street duty, and then 20+ psi for the track. that way, all they had to do was to change the gas in the tank. On the 14 psi street setup, the car would hit 14 psi and hold it there from 4500- 6500 rpm. when they used the boost controller to hold the waste gate shut, the boost would continue to climb past 14 in a linear fashion past 4500 rpm.

basically, you get a fatter torque curve by bleeding off the boost in the higher rpms.

you still won't have twin turbo torque lower in the rpm, but the upper midrange torque will significantly improve.

you basically would want to pulley down the blower so that the blower is at its max rpm at the engines max rpm, and then use the wastegate to bleed off boost.

also, the wastegate needs to be placed well before the MAF.
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Old Nov 9, 2007 | 04:20 PM
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Originally Posted by QuadCam
It works using a wastegate!

there was a recent article where they did it on a procharger. it was in one of the mustang mags I believe. They set it up run at 14 psi for street duty, and then 20+ psi for the track. that way, all they had to do was to change the gas in the tank. On the 14 psi street setup, the car would hit 14 psi and hold it there from 4500- 6500 rpm. when they used the boost controller to hold the waste gate shut, the boost would continue to climb past 14 in a linear fashion past 4500 rpm.

basically, you get a fatter torque curve by bleeding off the boost in the higher rpms.

you still won't have twin turbo torque lower in the rpm, but the upper midrange torque will significantly improve.

you basically would want to pulley down the blower so that the blower is at its max rpm at the engines max rpm, and then use the wastegate to bleed off boost.

also, the wastegate needs to be placed well before the MAF.
Wastegate should be located before the intercooler also to prevent thermal heatsoak of the intercooler by cooling air that you are not using.
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Old Nov 9, 2007 | 04:23 PM
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Originally Posted by QuadCam
It works using a wastegate!

there was a recent article where they did it on a procharger. it was in one of the mustang mags I believe. They set it up run at 14 psi for street duty, and then 20+ psi for the track. that way, all they had to do was to change the gas in the tank. On the 14 psi street setup, the car would hit 14 psi and hold it there from 4500- 6500 rpm. when they used the boost controller to hold the waste gate shut, the boost would continue to climb past 14 in a linear fashion past 4500 rpm.

basically, you get a fatter torque curve by bleeding off the boost in the higher rpms.

you still won't have twin turbo torque lower in the rpm, but the upper midrange torque will significantly improve.

you basically would want to pulley down the blower so that the blower is at its max rpm at the engines max rpm, and then use the wastegate to bleed off boost.

also, the wastegate needs to be placed well before the MAF.
Thanks for your reassurance QuadCam! So I could just pick up a Tial 38mm wastegate, fab up a flange to one of my charge pipes, pulley down the blower to run high boost and set my desired psi level via a boost controller? If this is the case, I am going to order the stuff this weekend and create a write up for all to see!
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Old Nov 9, 2007 | 04:40 PM
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I found my answer guys! The mustang article that QuadCam referred to was easily found on Google. Here is the link for any of you other supercharger owners may want to consider doing something similar: http://www.musclemustangfastfords.co...all/index.html

I will be ordering my stuff this weekend hopefully and setting up my car similar to this mustang. Lets see what happens!
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Old Nov 9, 2007 | 05:11 PM
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In the link Tigg provided,,,the poster [esemes] is the one that had the most sucsess with it . He installed a wastegait before the original bov and hooked up a elec boost controller on it . He tried a manual boost controller but it didnt react fast enough .

I [ or my shop ] tried to use a preasure regulator on the stock bov . It worked but I didnt want to pay for the time on the dyno to test it further to see how well it would work .

Last edited by booger; Nov 9, 2007 at 05:40 PM.
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Old Nov 9, 2007 | 06:02 PM
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Originally Posted by G35asian
I found my answer guys! The mustang article that QuadCam referred to was easily found on Google. Here is the link for any of you other supercharger owners may want to consider doing something similar: http://www.musclemustangfastfords.co...all/index.html

I will be ordering my stuff this weekend hopefully and setting up my car similar to this mustang. Lets see what happens!

That's the article. whether you guys like Mustangs or not, you should pick up MM&FF or 5.0 once in awhile. The tech article they have can apply to imports, too. The tech articles in those mags are so much better than any of the junk in the ricer mags. Another good one is Engine Masters; it only comes out quartly, though.
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Old Nov 10, 2007 | 07:23 PM
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funny, i mentioned that much earlier damn google
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