firehawk68mcleod

iTrader: (2)

Can i run say a tial waste gate on my d-1 procharged ls2. vs procharger bypass. wat are the pros and cons.. sorry i just posted something similar... but this is a more direct question thanks

Mike454SS

iTrader: (4)

A wastegate is used on a turbo application. It's basically a valve that goes into the exhaust to connect the pipes before and after the turbo. It regulates how much boost the turbo produces by opening to allow exhaust to bypass the turbo when the desired boost level is reached, essentially changing the pressure ratio between the manifold and the downpipe.

It wouldn't have any application on a car with a procharger.

hatcher1986

iTrader: (4)

well y couldnt u still use a wastegate??? if u tuned ur procharged car on 25lbs y couldnt u use a wastegate to manage the boost. like if u wanted to run 25lbs at the track and 15lbs on the street, u could change it with the spring in the wastegate instead of changing the pulley? wouldnt that work? but u will still have to have the procharger valve or some sort of BOV

battousai

iTrader: (3)

put it on the intake, there are several setups like that here.

firehawk68mcleod

iTrader: (2)

so am i thinking a blow off valve then

hatcher1986

iTrader: (4)

Im not sure, are u talking about the valve that coes with the procharger kit, if so then that is a BOV. and yes u can use different styles and brands.

firehawk68mcleod

iTrader: (2)

[I] didnt see the second reply ... yeah its the black procharger bypass valve... my kit was used and also cam with a greddy .. it would be nice to regulate some gas milleage on the street.. lol with a small adjustment of a wastegate vs a seperate set of pulleys and belts//

hatcher1986

iTrader: (4)

thats exactly what i was saying.. much easier to change the wastegate spring than a pulley and a belt.

Mr_Bond

iTrader: (11)

Here what the mustang guys did vortech_centrifugal_supercharger_wastegate_install

1sicws6

I have seeit done at the shop I use to work at c6 z06 with a t-trim cant remember the boost level but say we had it pullied for 10 pounds and put a 6 pound spring in it, the car made all the down low torque that it would have at 10 pounds but up top only limited to 6 pounds really cool little deal and worked out great

blue00ZZleeper

iTrader: (5)

Could it be adjustable or would it be set at 2 pressure settings. My only worries would be the tune.

hatcher1986

iTrader: (4)

the adjustability would be in the wastegate depending on the spring pressure. u would set the blower pulley on whatever max boost lbs u would want to run and tune it on that. then with a boost controller and the wastegate u can turn it down to what u want. like i was saying earlier if u wanted to play around on the street u could easily just turn it down wth the boost controler.

blue00ZZleeper

iTrader: (5)

My worry is that if I run 19psi max with a tune suited to it for max effort, what happens if I run lower then say my street tune of 16psi. If my "street" tune is for 16psi and timing reflecting upon that, can I run 12psi without the tune being all screwed up? I see the 2, tuned points but can you run in between without screwing something up? I'm not a tune guru but If you have 2 tuned set points, wont your tune not be optimal if you run a set boost out of those 2 points? Sorry if it doesn't make sense lol

hatcher1986

iTrader: (4)

I understand what ur saying. im not a tuning guru either. but if u were to tune ur computer for 19lbs, and have a way to turn it down, ur computer should adjust to that, as long as u dont go more than ur max boost level that the car is tuned for. As long as the car is tuned properly the computer is adjusting all the settings as the boost is on its way up to the max boost level, so if you had it set lower than the max, the computer should read that... these post are getn confusing and hard to type... i can tell it to myself but its hard to write out.. did that make any since to u?

blue00ZZleeper

iTrader: (5)

It did. I'm not sure on all the tuning specialties. lol Maybe someone better with the tuning aspect can chime in. I can do all the mechanical aspects, I'm just not that well versed in the tuning area. I'm not sure of all the inputs and the way the PCM reads them. I think it would work, but would it be a optimal tune? If 16psi is my max street tune and I have it set to 12psi, would it be a max effort tune on 12psi or would it "just work"?

hatcher1986

iTrader: (4)

yea maybe someone with some good tuning exp will chime in. The way i c it it would be a max effort for whatever the boost controller is set at.

MR2liter

iTrader: (11)

If it's tuned for 16 psi and the map only sees 12 it's gonna give it the right amount of fuel for 12psi. It's been done before without problem!

buick_lsx

The only problem/drawback is...even if you have it turned down, you are still going to get all the higher/hotter iat's as if you were running your max boost

ChevyChad

iTrader: (50)

https://ls1tech.com/forums/forced-in...l#post10030706

Phil99vette

iTrader: (11)

Yes. you can run a wastegate on the charge pipe with a supercharger. While I would not use it to control total boost I would use it to cut power down low to get down the track. I would not use it to cut more than 3-6# of boost, change pulley size at that point.