Hey guys,

a couple things got me thinking. SO i can see 15 psi on my vortech. Too much boost. simple solution would be get a 3.12. But thats a hassle to swap out when running race gas at the track which would support that boost level.

Is there a reason that this wouldnt work?? Follow along...

Using the boost pressure switch inlcuded with a standard water injection kit. Once a preset boost is reached it sends a trigger to the bypass valve solenoid, i referenced in another thread (available from Snow).

I'm not sure how that bypass valve solenoid works, but Snow uses it to dump boost out the bypass valve if it get a trigger from a low water level gauge. The only drawback would be is that it would dump all the boost (pretty much what the bypass valve would do if you could boost that high). So from a safety standpoint, it would be good. Not a cool as just bleeding enough to stay at a constant psi though...

So essentially, instead of a low water level trigger, it gets its trigger from the adjustable boost sensor.

Plausible?

That way you could have a switch on the boost sensor, so for daily driving, you could make sure not to boost too high even if you get on it. Then you could disable boost sensor the system and run full psi.


Pardon my poor PS effort

 

It has been done before with a wastegate.

 

no one can give exact specs on how to do it. if you know exactly the wastegate and the springs to use, please post it.

 

there's been like 3 people who've tried it, but only one person did get it to work and posted these 3 pictures

 

Who was it that got it to work--are they still around? It'd be really nice to have a writeup.

 

I don't remember
they didn't post much info on it

 

ya, thats pretty much all you can find if you search here or over the web. non-descript pics with no details and certainly no dyno/ logs showing how it works.

bah

 

I talked to the guy who did it several times about it . He got it to work using a wastegate and an elec boost controler . He tried a manual one , but it wouldnt react fast enough .

My shop used a preasure regulator and it seemed to work ok , but we didnt go any further with testing with it on the dyno . We only dd a couple dyno runs with it on . I didnt want to go any further because of ther time it would have taken to get it to work good enough .

 

I did see a log of his boost with it working . It did seem to hold boost pretty good with the elec boost controler . With the manual one it would drop off to sharply when iit opened .

 

subscribing. Hi Guys

 

str8dum1,

there was a great article a few months back in MM&FF on this. You may be able to find it on their website. If you want great tech articles for centrifugal blowers, buy lots of mustang magazines and check out mustang related forums. the entire centrifugal blower market has been entirely built from mustang enthusiasts.

 

just googled it, and look what I found!!!

http://www.musclemustangfastfords.co...all/index.html

 

good stuff

 

nice find.

 

I've had a couple supercharged SN95 Mustangs back in the mid 90s. MM&FF has great articles. If Import guys can get over their hatred of Mustangs, there's a plethora of information to learn from the mustang mags.

 

We use them on a few cars from 928 motorsports and I may use them on my SC. I would suggest using 2 of them.
http://www.928m.com/parts/boostlimitervalve.php

 

i would love to try that setup on a car but i would need it for a week or so...

 

The big negative that I see is that compressing air makes a ton of heat.
I would like to see a dyno comparison for fun.

vortech with 3.125 pulley at 9psi
vortech with 2.62 pulley at 9 psi with boost bleedoff.

The 2.62 pulley would make boost much sooner and have alot more area under the curve, but the trade-off would be much hotter air generated would have less power potential and greater chance of detonation.

 

Ya i had read that article before when i did a google search. Still very vague. From that article it would seem you just throw on the wastegate, tap off the boost line, and off you go.

JT, why would you need the car for a week? Say if someone had a wastegate already welded onto the uppipe, what else would you think needs to be done?

Thanks!

 

you are still only compressing the air to achieve 9psi over atmospheric pressure. You may get a bit more heat from spinning the blower harder, but you won't be heating up the air as if you were making 15 psi.