T04b V-trim Install & Comments

[madaba]

yea, i know what you guys mean about the oil drain kit, i had to take mine apart and cut make it so it wouln't touch the downpipe, then i used some wrap around the downpipe to help insulate it from the return

 

[khendriksma1]

Any of you guys having boost creep issues with this turbo? I have been having a helluva time with creep. I am running a 2.5" external dump O2 housing so that souldn't be the problem. It seems as thought the wastegate actuator doesn't have enough travel to open the wastegate flapper fully. I have set my boost pressure to 15psi (at least thats when I hear the exhaust out the O2 dump) and it will pretty rapidly creep to 22-24psi. It is driving me MAD! I have tried MANY things to solve this including giving the wastegate a dedicated pressure line and it still doesn't help.

Any suggestions?

 

[steel_3d]

Are you running the high pressure actuator?
How far is the rod adjusted from the neutral position (ie how much do you have to stretch to get it on the arm)?
If you shorten it a lot (ie trying to run high boost with the low pressure actuator) you could presumably adjust out all the travel.

I have the opposite problem as you, I can't seem to get much above 10psi unless I take the hose off the actuator. I already have the rod adjusted about half an inch from neutral. I assume I'm gonna run out of travel soon, but I haven't gotten that far yet (clutch slave gave out last nite).

You could try adjusting it looser and use an mbc. That should give you the travel back, if that's the problem.

Did you try to see if the flapper opens all the way with the wastegate rod off?

 

[khendriksma1]

I have the high pressure actuator on it now. I have had both on it. I have the rod set so that I only have to stretch it about 1/8" to get it on... just enough to hold it closed until I want it to open. With the low pressure actuator, I could hear the wastegate open as low as 8psi (without an MBC installed) but it still crept to 22psi. The wastegate arm has a little bit more travel when the arm from the actuator is not attached. It seems that the actuator travel is not enough to get the flapper out of the way of the exhaust flow enough. I have even driven to Bullseye and had Dan (their tech guy) look at it and we though we had it figured out. Originally, the wastegate arm coming out of the housing was hitting against my O2 housing flange. Monday night I took a die grinder to that to clear up that problem and it didn't fix anything... it is still the same.

Do you think porting the area above the wastegate passage in turbine inlet would help so that it is "catching" more exhaust air? I guess I am stumped and I am running out of ideas other than going with an external wastegate. What puzzles me is that Dan at Bullseye told me that nobody else is having this problem with this turbo. Go figure!

Any more ideas?

 

[1029TSG]

You shouldn't have to port or modify anything, give Dan a call so he can pick up where you two left off.

 

[khendriksma1]

Yes, I have spoken with Dan MANY times already and I went to see him with the car this past Friday. We thought the arm in the housing was hitting my O2 flange but I took care of that and I still have the problem. I plan on calling Dan again today.

 

[98GSX-WI]

I have the low pressure actuator. Eventually, I just turned it all of the way in (clockwise). I didn't stretch it onto the wastegate rod, instead I loosened the bolts that connect the bracket to the compressor housing...put the arm on...and then tightened the bracket bolts back up. I now get just what I wanted with MBC turned all the way in (off)....a pretty consistent 20 psi with no boost creep or falling off of boost.

At this point, I'm not sure if I should run the vacuum line straight to the actuator...or just leave it connected to the boost controller the way it is... I'll probably just leave it the way it is...since everything seems to be working just fine...

 

[steel_3d]

So let me get this straight, you shortened the rod as far as it will go? I'm surprised that leaves enough travel to open the wastegate, but hey. I'll try that when I get my car running again. I have a feeling I have a low pressure actuator, cause I've adjusted it a lot already with very little change in boost.

 

[MaNGiNa24]

I didn't have any issues with the oil return line, it was a pain in the ass to get on, but it's on none the less. Most people just look to see others with problems and give up easy. My oil feed was somewhat long but after installing the turbo that was the least of my concern.

Anyway, I made the mistake of listening to everyone and tried to modify my oil drain fitting from the turbo to the line and fudged it up pretty bad, Dave promptly sent me out a flange free of charge and now it's fixed.

I was one of the first to order this turbo with The Speed Factor's promo and haven't had one regret or problem.

BTW: I'm running 12 psi without any creep what so ever on the high pressure internal wastegate.

 

[99gst_racer]

MaNGiNa24 - Quick question. What kind of airflow (lbs/min) are you seeing @ 12 PSI? Until my injectors come in, I'm stuck @ 12 psi also, so I was just curious to compare our airflow....

 

[just_passed_you]

My oil feed line off the turbo isn't threaded.... WTF
Do I need to thread it or...
Not to hijack, just finishing the install.

 

[1029TSG]

If its not threaded, we should have sent you one of these. Email me directly if you didnt receive it and we'll get one out to you.

 

[just_passed_you]

I recieved a flange like that... but it was already connected to the big oil drain line.
So I didn't get an additional flange like that or washers.
The bolts, I did get 2 total and I used those to connect the drain line to the under
side of the turbo.

Is threading that section on the turbo an option? I saw an install picture
where it looked like someone threaded the middle section?

Let me know.
Thanks!

I'll pay for next-day air if possible

 

[1029TSG]

Threading is an option. However, its very risky. If any metal shavings are left in there your turbo wont live very long. I'd rather send you the flange overnight and split the shipping with you.

 

[just_passed_you]

Go ahead and send it out, I've got another set-back with the non-abs brake lines
(back order)
I don't need anything over night, when it get's here it get's here.

Thanks! You guys have been great!

 

[turbo90gsx]

I don't mean to hijack this thead, but on wich spot on the oil filter housing do you mount the feed line too?

 

[1029TSG]

If you're looking at the filter housing from the front of the car its the top fitting.

 

[madaba]

he has a '90, so aren't the outlets side by side?

 

[turbo90gsx]

he has a '90, so aren't the outlets side by side?

The inlet and outlet to the oil cooler is on the side. The actual place on the housing to tap into for main oil pressure I think is right on the very front of the housing next to the other sending unit.

 

[madaba]

The inlet and outlet to the oil cooler is on the side. The actual place on the housing to tap into for main oil pressure I think is right on the very front of the housing next to the other sending unit.

sorry the fittings, i have mine feeding from the fitting next to the sending unit as u mentioned, i just wanted to make sure

 

[1029TSG]

We have a new winner

http://www.turbochallenge.com/scott.htm

 

[MaNGiNa24]

Beautiful

 

[1029TSG]

Thanks to Scott, Steve, Carl and all the guys who had a hand in it down at Good Vibes Auto Salon.

 

[Burnett03]

Yeah, sorry about the drains everyone. I wish we had time to make those ourselves. If you have any issues we will be more than happy to take care of it with a replacement or refund.

find a new supplier.. his drain lines are a joke.

 

[1029TSG]

If you want something done right you just have to do it yourself. A lesson we learned on these drain kits. We will now be manufacturing our own in the next few weeks. Apologies to all of you that were inconvenienced.