pic thread istructions for bost gauge and manual boost controller

[krazyfil]

i dont need full step by step... but as i am fairly new to the sr20 i dont know too much bout whut u guys are talking bout... so some instructions on how to install them and pics when u reference certain parts of the motor like certain nipples or places like that....

thanks this would be appreciated greatly

[krazyfil]

here are a couple pics... here is the diagram for the instal..




but see here is my turbo and there is no pressure valve on the turbo... so what do i hook the pother end into??

[landins13]

that turbo is so incredibly small dont bother with turning the boost up, upgrade your turbo. and honestly im highly surprised that there is no nipple of the turbo. are you sure youve looked at it thoroughly?

[krazyfil]

yea, from what i could, i havnt actually taken the turbo off the motor but ive felt all around and got undernesth and above and looked everywhere and coulnd see or feel anything... the reason i am wanting to turn the boost up is cuz the motor has HKS stage 2 272 cams and JWT cam gears and basically what i was told is i need a bigger turbo or more boost out of the turbo to actually benefit from those cams

since i dont have money for t3 setup.. i figure cheapo boost controller is good enough for now lol

[Razi]

Originally Posted by krazyfil

but see here is my turbo and there is no pressure valve on the turbo... so what do i hook the pother end into??

I don't know where you read about hooking one end to a pressure valve, but the 'other end' I think you're talking about, is a boost source.

Somewhere between your turbo and throttle body, you have a source for boost (in the picture posted, it's the outlet of the turbo), which your wastegate is hooked up to, which is the boost source.

[krazyfil]

Originally Posted by Razi

I don't know where you read about hooking one end to a pressure valve, but the 'other end' I think you're talking about, is a boost source.

Somewhere between your turbo and throttle body, you have a source for boost (in the picture posted, it's the outlet of the turbo), which your wastegate is hooked up to, which is the boost source.

well see here is the kit i have




and as u can see like the diagram above... the little t type thingy says one end is supposed to go from the wastegate, the other to the controller and the 3rd end to the pressure source whatever the hell that is...

currently i have a line from the wastegate coming across the front of the motor hooked into the bov... so i plug the t into the wastegate, but then the other side has nothing to plug into except the hose coming off the BOV... that is why im confused lol

[g6civcx]

Originally Posted by krazyfil

and as u can see like the diagram above... the little t type thingy says one end is supposed to go from the wastegate, the other to the controller and the 3rd end to the pressure source whatever the hell that is...

currently i have a line from the wastegate coming across the front of the motor hooked into the bov... so i plug the t into the wastegate, but then the other side has nothing to plug into except the hose coming off the BOV... that is why im confused lol

The BOV/compressor bypass valve should be hooked up straight to the fat nipple on the throttle body. There should be no T or anything off of this line. The fat nipple goes straight to your BOV.

The factory wastegate gets its signal somewhere from the intercooler piping depends which generation SR you have.

They recommend putting a nipple between the turbo and the throttle body as close to the turbo as possible so you can get a cleaner signal. If your turbo doesn't have a nipple, you can fabricate one, or use the factory location for the wastegate.

The boost gauge can be plumbed anywhere you want, but generally you can T it off of the fuel pressure regulator.


It sounds like you don't understand turbos in general. Perhaps a refresher course in what a turbo is and how it works may help you.

[krazyfil]

im not sure if u were trying to be helpful or rude lol... but either way i agree with u im not a turbo kinda guy, this is my roommates car, i was raised on v8s, and my last 240 i did ls swap soo u can see my dilemma... but i will check his lines when he gets back...

but i do know that there are 3 nipples on the throttle body, 2 on top and one on bottom, the one on bottom is connected to nothing and the bov is t'd off of the top right nipple, ill take a pic or two as well to show u what i mean and maybe yall can help make more sense of this for me lol

[g6civcx]

I am trying to help. I prefer small block chevy as well.

The one on the bottom is for the evaporative charcoal canister. If the canister is not connected, you need to plug this port.

You need the entire purge control solenoid assembly for the canister to work properly. If want to make the canister work without the control solenoid, let me know and I'll help you.

The big fat nipple goes straight to the BOV. There should be no T on this line. Remove any piggyback T from the BOV line because they should not be there.

The other nipple goes to the fuel pressure regulator, and you can T this one for your boost pressure gauge.

The wastegate and boost controller has nothing to do with any of these nipples on the throttle. If your wastegate/boost controller is connected to the throttle body, it's wrong.

[krazyfil]

haha so basically someone messed up when doing the vaccuum lines on here... cuz the bov is t'd off of something else i dont remember off hand but the other line of the bov is going into the wastegate... soooo im guessing this is bad? ill definately have to take some pics and show u what im talking about...

but u said the bottom nipple on the throttle body needs to be capped if nothing is connected right?

[g6civcx]

Originally Posted by krazyfil

haha so basically someone messed up when doing the vaccuum lines on here... cuz the bov is t'd off of something else i dont remember off hand but the other line of the bov is going into the wastegate... soooo im guessing this is bad?

I've said this for the third time now. The BOV should have NOTHING t into it. The fat nipple goes straight to the BOV.

Originally Posted by krazyfil

but u said the bottom nipple on the throttle body needs to be capped if nothing is connected right?

Second time:

Originally Posted by g6civcx

The one on the bottom is for the evaporative charcoal canister. If the canister is not connected, you need to plug this port.

[krazyfil]

well i fixed all the effed up vaccuum issues.. but now the problem is there is no niple on the turbo still or the piping so im gonna have to take it to a weld shop and have one put on there....

is there any issue with not having the wastegate connected to anything?

[krazyfil]

bump for engine safety

[waynehead05]

I got a brass fitting from Lowes hardware in the plumbing section. It fir perfectly into a hole that I drilled and tapped into the compressor outlet pipe. I used this pipe, because I didn't want to remove the turbo from the car, but if I were you I'd drill and tap the turbo directly.

[Dee]

Originally Posted by krazyfil

well i fixed all the effed up vaccuum issues.. but now the problem is there is no niple on the turbo still or the piping so im gonna have to take it to a weld shop and have one put on there....

is there any issue with not having the wastegate connected to anything?

Yes there is a BIG issue, with no vacuum source the turbo will boost until infinity or until it explodes which ever come first it needs to be connected at all times!

I have a stock SR and I WG connected to the stock cold pipe(it has a nipple already) then I just T'd between that line for the boost controller.

As already said for the fat nipple on the TB(top, right) needs to go directly to BOV/Bypass without any T's the other is for the FPR/boost guage(if applicable).



It's late so if there are any errors feel free to correct me.

[g6civcx]

krazyfil, I may give you a call later on today. PM me your phone number.

[krazyfil]

Originally Posted by Dee

Yes there is a BIG issue, with no vacuum source the turbo will boost until infinity or until it explodes which ever come first it needs to be connected at all times!

I have a stock SR and I WG connected to the stock cold pipe(it has a nipple already) then I just T'd between that line for the boost controller.

As already said for the fat nipple on the TB(top, right) needs to go directly to BOV/Bypass without any T's the other is for the FPR/boost guage(if applicable).



It's late so if there are any errors feel free to correct me.

well like i said i fixed the issue with the bov... that rides solo now.. but whats worrying me now is since originally the wastegate was t'd off the bov that basically means this whole time he has had the car his turbo has been running on crack mode?

how would u know if something is wrong with the turbo? besides obvious loss of power... i mean like is there any kinda noise it would make? i fingered the fan to see if there was any movement at all and there wasnt so hopefully its still good

[smelly240]

The wg being t-d into the bov isnt bad for the wastegate or turbo pressure or anything like that - its bad for bov response and the functionality of the bov.

Many of us dont even run bov's... its not uncommon, but if u have one it might as well work proper.

[krazyfil]

well BOV is hooked up the right way.. but im just worried bout the trubo now