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First impression of new PTE 50 trim turbo.

17K views 114 replies 31 participants last post by  anconover  
#1 ·
Well I finally got the new turbo on after a lot of work, and hazzle with many things that didn't want to go right. Well all I got to say is that I need some 660s or bigger injectors real bad. Turbo spools preaty fast actually, it's really not that much laggier then my T28 was. It's reaches full boost (18psi) at about 3800 to 4000rpm. And preaty much instantly at a downshift. It reacts very quickly. Power came on preaty strong at 4000rpm, fairly torquey too, and would really pull hard at 5000rpm on.

Car felt like it pulled like a bat out of hell untill fuel cut ruined the fun. I know the butt dyno can lie, but this change felt preaty huge. Lowest boost I could run was 17psi in fist gear, and 18psi on second. I might be able to get it down to 15 to 16psi by playing with the actuator.

My 550s went from -26 from 5 to 7k on the AFC, to 0 across the power band to only get a lean .91v to .92v of max richness. My car likes .94v ideally, it's plenty safe, and makes lots of power there. Car was so crazy lean I never got going very fast, but obviously theres a huge difference in airflow going on. I was also getting 15 degrees of timing on first and 14 degress on second. I defenetly need bigger injectors bad.

On the logger the airflow number went from 23 to 24lbs of airflow on the T28/28 at 19psi, to 35lbs on the 50trim at 18psi. This turbo flows like mad. The HZ on the AFC went from 1840s @ 19 psi on the T28, to 2200 on the AFC at 17psi on first gear. Second would cause three huge fuel cut burst and prevent me from getting a good readings. I can't imagine what this thing will flow at 25 to 28psi.

I'm disapointed that I don't have bigger injectors to fully test it out. I also can't wait to see what it does at 20psi on pump. And maybe a little race gas if it's not fast enough.

Here are some misc pics of the install:
The pic with all the turbos, are a T25, FP T28/28, 18G, and the new PTE 50 trim.
http://24.237.76.227/webshare/PTE Turbo install/
 
#2 ·
My 550s went from -26 from 5 to 7k on the AFC, to 0 across the power band
airflow number went from 23 to 24lbs of airflow on the T28/28 at 19psi, to 35lbs on the 50trim at 18psi
Are those numbers after the afc was changed? You added airflow if so(not trying to be a jerk;) )

Thats a huge turbo compared to the t2x's in that pic. I'm sure it flows like a MF, I think I want one:( .


Nice job!
 
#5 ·
I will be done installing mine on Wednesday as well. I will post a review here too, so watch for updates.
 
#6 ·
I can't richen up any more cause I'm hitting fuel cut. My HZ readings never changed from from richening the AFC settings from what I could tell.
 
#9 ·
Boost Fed said:
If you're at 0 across the board on the AFC can't you richen it up?

Afc does more than just lean out your injectors
The more air flow you show the computer, the sooner you'll hit fuel cut. Bigger injectors and will let him show the computer less of an airflow while still running the same ammount of fuel at the same boost levels.
 
#10 ·
nano-

you dont want to add fuel because your already hitting fuel cut? hahahaa, thats exactly what i thought was going on with me! read my review on my FP GREEN (it looks like we posted almost the same time!). you will see that i explain the exact same thing going on with my setup and 550s. guess what though... i richened things up across the board (around +30%) and now i can hit 22 psi with NO FUEL CUT all the way to redline... beleive me, i held the same theory as you "if im already hitting fuel cut, richening it up will make me cut earlier". this is NOT true in my case, you should at least try it.....

-d
 
#12 · (Edited)
Tried that and it made the car run way worse and would stumble a lot. I did however noticed I had lots of fuel suddenly sometimes. Then I realized that my dejon intake only came with one extra small tube. I had it connected to the charcoal canister, I also noticed that my valve cover vent hose was sucking in air, so I thought this might of caused a huge vaccumm leak. so I unplugged that and plugged in the valve cover vent hose into the intake. It worked and I had lots of fuel at 20psi, and was able to lean the AFC out to -15%. Car was incredibly fast, HZ readings where at 2300hz. It started to pull very hard, and would pull very fast to 120mph. I couldn't belive how hard it pulled past 100mph. EGTs stayed at 850C the whole time. THen suddenly it started to run very lean again and would suddenly run .85v and the next minute .92v. It's fairly frustrating, can't seem to figure this weird thing out. Could I possibly be overruning my 2g maf?
I thought the valve cover vent could be vented out to the atmosphere, but when I did that on my car it made it run super lean.

I was also able to adjust the wastegate and got the car to run 14psi to redline with no creep, also got it to 24psi with the wastegaste at it's lowest setting and my Proffec B turned to max boost. I'm sure with the wastegated adjusted to a tighter setting it can easily run 28psi.
 
#13 ·
Wow, very nice nano. Just curious what trims that turbo is, as lately I've been thinking about going the exact route you did, but was curious what trims you used to pull off numbers like that. Those turbos are so cheap, but just seem so more potent than the old school 16g, I just feel like my turbo is beginning to become outdated, and that for a little more lag time I can have something much stronger. So you experienced now creep even at 14psi? What size exhaust piping are you running. What size wastegate do those things come with stock? What do you say you hit full boost by? When does boost begin to build?
 
#14 ·
It dosen't creep at all. It held 14psi to redline just fine. Starts to make boost at 3000rpm and reaches full boost between 3800 to 4000rpm, depending how much boost you're making.
 
#15 ·
nano said:
It dosen't creep at all. It held 14psi to redline just fine. Starts to make boost at 3000rpm and reaches full boost between 3800 to 4000rpm, depending how much boost you're making.
What do you think about the 50 trim compared to your T-28? Any regrets about going with a larger compressor?
 
#16 ·
No regrets at all.. I'm very happy with it. I added some gas and it's running fine. It's defenetly pushing the limits of my 550s at 20psi. It's currently at -8 across the power and and running .96v. A little rich, but I'm still tunning. I just asked PTE for their 50trim turbo. It comes with a 7.5cm turbine housing, .60 a/r compressor housing, and a t31 turbine wheel. They also come with an adjustable waste gate, you can boost anywhere from 14 to 28psi with it. It's right on their site..
http://www.precisionte.com/sportcompact/

I have a 2.5" down pipe, 2.5" test pipe, and a B&B craft 3" cat back.
 
#17 ·
I wonder if a full 3" turboback wouldnt help this turbo breath more than what you have. Also if I were to do that would it creep. These turbos are just so cheap compared to a BB version and I'm looking for just over 400awhp, nothing close to the 500-550 the BB ones are putting out.
 
#21 ·
I got mine installed. I can hold 11 psi to redline. This turbo rocks. I'm getting it dynoed on 6/30. I have Evo Xmani and Evo O2 housing with RRE DP and 3" Dunk Apexi with a RRE hiflo cat. When I hit 4000 rpm it's like having nitrous. My Small 16g would give out at 6000 rpm but this turbo pulls hard to redline. I'm gonna try and stay away from race gas, try is the hard thing. I want to see what I can do on pump. With the 16g on 112 my best was 12.7 at 106. I want to at least get that on pump. My butt dyno says no problem. I guess we'll see.
 
#24 ·
2GTSIFWD said:
2 questions was that a pic of your heatshield on with this turbo? And is that a dejon tool 3 in intake pipe?
Yeah all the stock shielding is on with it. I have an EVOIII O2 housing and the stock shielding bolts on to it no problem. Yes that's a dejon tool 3" intake pipe.

I'm going to have to get 660s soon. 550s isn't cutting it, and it'll run lean sometimes when the engine gets warm.

My buddy has preaty much my same setup on he's 97GSX, well he's a 5spd. Except he's got stock cams, and I got crower stage 2 cams. The Cams sure make a world of difference with this turbo. It feels way torquier at 4k plus, and the top end is crazy, compared to he's stock cams setup. It really wakes the car up big time when used with a big turbo like this one.
 
#25 ·
Just to let you guys know this turbo performs a lot better with a cam upgrade on 2g cars. Just as an example my buddy has preaty much my same setup with stock cams, and he only gets 1950HZs, and 24lbs of airflow on the logger. My car with crower stage 2 cams gets 2300hz and 35lbs of air flow on the logger. Both cars are at 20psi. I worked on, and tuned he's car as much as I do on mine, and it's just about as much as I could get out of he's setup.