new external gate installed

[Ian Turgeon]

Since I work in-front of a computer, I get to post this before adam does.

Installed adam's innovative gate last night. got pics and all for a new article to add to the site.

the crossover was surprisingly easy to remove. We snapped one stud on it, but found a replacement pretty easy.

Bolted the new crossover in.
Bolted the new wg onto the new crossover tube.
Tried to fit the turndown pipe on.. didn't fit.
Installed vacuum lines, bleeder.
Wired the wastegate shut by wrapping wire around the arm and wg actuator.
Re-installed IC, battery, and went out for a drive.

called bdubb.. where do i set the bleeder for base? shut he says.

we do a part throttle run down the street, 5, 10, 15, 19, 19.8. POWSHHHHHHHhhh.

uh, wg didn't open, and the bov didn't either.. weird. worried, adam gives it a little gas to see if the bov is working or not.. only builds 0.3ish boost. uh.

stop to see the ic-tb hose popped off.
popped that back on, put another bolt in the IC brackets (only had 1 on)
turned the bleeder all the way open.

this time, the neighborhood woke up. vrrroooooBWAAAAAAAA PHSSSSSSSSsssssss. and two giant smiles 10 psi solid, builds real fast opening at around 5psi.

got into a race with a golf gti.. barely hung with him.. more boost needed.
stop and give it a full turn, no real change. give it another full turn. 20+.. let off when the numbers got to high.

so with a little testing we come to this conclusion
1.0 turn 7psi
1.5 turns 14.5ish
2.0 turns 20+

surprising to me as the bleeder must turn like 80 full turns open to closed.

at any rate, pretty easy install, and things looking good so far. builds boost fast and stays within 1psi when its at its target

 

[hamrhead]

My valve seems a little different. I can turn mine about 1/2-3/4 of a turn and nothing, then all of a sudden every little bit increases psi.

Pretty noisy huh? I like it. One of my better mods. Much more precise than the stock set-up.

 

[Ian Turgeon]

I'm having an idea of using a pressure relief valve in addition to the regulator.

that way the wg vac line sees no boost till I want it to.. then the rgulator will take over.

end result being the wg opens at the last minute necissary, hopefully.

 

[Methuselah]

Are you dumping right at the crossover or have you routed a pipe somewhere?
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[Ian Turgeon]

its dumping right at the exit of the wg right now. We couldnt get the small dump tube mike included with it to fit. Plans to get the thing pointed away from vitals as soon as we can. It sure as hell melted all the extra greese lying around

 

[sy1765]

I'm having an idea of using a pressure relief valve in addition to the regulator.

that way the wg vac line sees no boost till I want it to.. then the rgulator will take over.

end result being the wg opens at the last minute necissary, hopefully.

talk to christian to get the same parts i'm using from grainger. if he can't get them i can get them locally (through work) and ship 'em. my valve cost me $8 and the reg was $13. you still want that vac pump?

 

[Maverick87]

how can you quite it down . I think that putting the wg on the crossover would help keep the boost under control. but I just dont think I could deal with the noise :-?

 

[Ian Turgeon]

You could route the exhaust back into the system after the turbo, or run a muffler of some sort for the wastegate itself.

Really, its surprisingly not that obnoxious.

 

[Maverick87]

I had a gn with a kenny bell big boy wg on it and it was pretty loud until I connected it to the exaust I dont think it would be easy to route it back to the dp to much sh*t in the way :x I have an atr dp & wg boost is ok but I would like a little more stable boost

 

[Ian Turgeon]

yah, its not really an option to route it back in. from the x over.

so you got the option of dealing with the sound or going pte

 

[Maverick87]

damn

 

[SYO237]

heh, i like for my truck being the center of attention and me not in the middle of the conversation...


as for the noise...it actually isnt really that bad at all... i was hoping for louder to be honest, but im sure its a little diffrent when your outside of the truck versus being in the cab.... you definately know im around however on the road when i get on it.... its fun driving under bridges or next to walls....

ive finally tweaked out the bleeder and getting a good 17.3psi... weird how it works... you got base boost, give it a few turns and nothing you can maybe get 1-2psi...then you hit the sweet spot and your overboosting... very easy to blow a motor, so anyone thinknig of installing an external, do your research first and GET A GOOD BOOST GAUGE. we would see boost climb very fast and by the time i was letting out, i was seeing 20+psi... not good for a mild modded truck...

the gate is cracking open now at about 5-8psi, depending how hard i get on it....


since we couldnt install the dump pipe off the external, its basically just blasting towards the steering gear box.... theres a section where there was a buildup of grease... it aint there anymore


one big downfall i that is noticable, when mounted the gate sits right on top the stock CCHE unit. it has barely maybe an 1/8" clearance between the cooling fins and the top of the WG.

once that thing gets hot, it emminates major heat.... sitting at a light, we watched as temps rose fast....

even cruising around, the temps are a good 10-15 degrees above normal for what my truck runs on the intercooler...


this wouldnt be a worry for you A to A guys....



like ian said, very surprizingly, everything came out very easy.... 2 of the bolts on the crossover are a little tricky, have to use wobble joints and extenders of course.... broke one stud in half at the nut, pull another stud completely out with the nut on the other side... no major setbacks...took some studs from autozone and put them right back in.... biggest drawback was i had to use a washer and spacer between the new studs...no rocket science...



definately a recommended mod.... boost response is instant and steady... you really can feel the truck wake up under light and heavy throttle response.

those worried about noise shouldnt... driving around normal doesnt change any exhaust pitch and when you get on it, its no worse than hearing a flowmaster on a camaro or mustang when they get on it...


next up is a custom exhaust setup.... everyone will have to wait and see that... trick setup, fully made for syty only... should start working on it soon....

 

[Ian Turgeon]

article is up.. hopefully I didn't forget anything, and its half way intelligable.

http://www.sytyarchives.com/howto/viewarticle.php?article_name=external_wastegate.php&dir=engine

 

[ghettosled]

Hey Adam,

glad its working. Seems the WG sits a tad closer then I would have preferred, so let me know if it is bothering you. One thing you may want to try is putting some washers on the back two bolts holding the CCHE in. This will get a tad more clearance in there for you. Its weird how much play the stock or poly motor mounts have. Last customer truck we installed a wg on the x-over we had about 1" b/t the top and the radiator. Then once we started the motor and reved it up, the wastegate was practically touching.

And did you get the dump to work? I told Ian to trim some of the leg off. I left it a tad long, and figured it would need about 1" trimmed off it. As long as it directs the air rearward away from the hoses and steering box you are cool.

As for the regulator do you have a 0-100psi regulator? If so thats probably why its real touchy.

 

[Ian Turgeon]

He got whatever brian green told him to buy as far as the regulator.

I've seen a place that sells a regulator with replaceable springs, and was thinking that would be a good way to go.

he hasnt installed the dump yet.. Only time to work on the truck is 9pm + and the smallest task starts to look too big even by then.

definately reccomend one for those looking for solid, fast boost(adjustability is really a secondary plus).

 

[BigAl...]

I installed my ext WG a couple of months ago, I agree best damn upgrade I've done. I tried using the different regulators but ended up forking over the bucs for a greddy profec B boost controller 2nd best upgrade definetly worth saving your pennies for. With the regulators I would get boost creep in the tall gears, with the profec, rock solid

BigAl...

 

[SYO237]

Thanks for the tips mike...

im pretty sure the regulator i got is a 0-100psi... all the way closed, its solid 10psi.. you have to do a few turns before you find the sweet spot... to much, overboost, to little i only see from .1 to 1psi increase... once its in the spot, very slight turns can increase me or decrease me a few psi all at once...makes for some interesting roll ons....


just to throw info out there...

Its an Innovative Gate from Mike at Atomic Rooster Autosports, www.arautosports.com

If you considering getting a gate, the Innovative is badass and Mike hooks it up at great prices...

thanks again mike!

 

[Christian Dionne]

Adam, I told you the regulator was $13.xx and the check valve was $8.xx.

For less than $22 you could have real boost control, and real spoolup.

Oh well, what do I know anyways? Your truck will always be slow.

 

[Ian Turgeon]

wheres yours again? oh yah.

I'd definitely like to see a pressure relieve valve on it to see how that changes spool up. Its very quick as it is, but I can imagine it would be even better.

How close to the regulated boost level do you think we can set the relief valve? 1-2psi? will it be able to slow the turbo that fast?

Christian, is the regulator your talking about cover a smaller boost range?

 

[Christian Dionne]

I would set the check valve anywhere between 10-15, which depended upon street or track use. The level of boost (15-17) I got was controlled by the rod length. I never used the regulator, because I was fighting ignition issues right up until the end of the transmission.

Mike has the same setup with the check valve and regulator, and his results were great. I believe the spring in the regulator can be changed out to a lighter one for even better control.

Another thing that helped Mike with his truck was installing a restrictor after the regulator heading towards the wastegate. Hell, the TurboBuicks have a restrictor from the factory built in to the "Y" fitting. We were having problems, without the restricor, getting his boost to increase above 10. We made a pass and cranked the regulator a turn, over and over and nothing happened. The regulator could not bleed enough air, so a restrictor was needed to give the wastegate actuator less vloume of air.

I believe my setup can control boost as well as the $400 boost controlllers, except you have to get out of the truck to change the settings.