435 wrtq had to be a big boost spike (28-29 psi) if it made only 415 whp torque is falling off pretty quickly which means boost was falling off. That exhaust wheel looks bad. Looks like the bearings came apart and the wheel hit the exhaust housing. Turbo being overspun or not getting enough oil could have caused that failure.

 

Just curious, how is ZZP working with you on the broken ZFR?

 

x2

 

X3 that thing was not on there long at all should be under warranty.

 

Sorry, I though this was already cleared up in the other thread I made regarding my ZFR 2 months back. Well this turbo was not under warranty.It was a prototype kit and to be honest, I didn't know that but I don't care really. You gotta pay to play and that's how it is in the game. They're still helping me out in this situation. I'm sending them my ZFR back and I'm probably going to buy another one lol. Maybe they'll have the bigger EFR kit ready for me to test.



For now, I figured out my BOV isnt working for some reason. I'm going to check the line and see if I have vacuum pressure. If I do I'm guessing it's the BOV. I ordered custom coolant lines and will be installed Saturday.

 

Good stuff bro. Cant wait to see results

 

love your audio choices ATLsilverSS

 

Bump.

Waiting for results and hopefully for you to get your issues straightened out!

 

I don't know how I missed this one. No boost spike though, at all. Smooth all the way up and down the rpm, check my graph.



One thing I wondered was, if a bearing did break up, wouldn't oil be seeping through and go through the turbo. When I drove it to the mechanic shop to do the turbo swap. There was no oil leaking through the exhaust turbine side so I don't think that failed. I think the shaft just snapped in the middle. Don't really know how there wouldn't be enough oil, I used all the stuff zzp sent to me lol. Made sure oil came out before we even put the ZFR in lol.

Thanks a lot bro, I'm killing myself everyday I'm driving it with the boost issue. Ive tightened the wastegate all the way down. my WDC are at 100 %. I'm going to check for boost leak but I don't think I have any. James told me to remove the boost line to the wastegate and to check if that made me boost higher or not. If I boost higher I'm guessing that means I don't have a boost leak? If I boost the same that probably means wastegate is doing the same thing it was doing before, and I do have a leak... Ahh this crap is making me nuts.

 

Hmm must be a compressor efficiency thing if torque drops like that. What did it make SAE corrected 400 whp or so on E-47? I am a disappointed in the ZFR thus far ZZPs 500 whp is bogus as no one has even come close to that.

 

The upgraded BNR seems to be the best bang for buck turbo, but im curious to see this turbos stats.

 

It gets the same power as a zfr but you'd be pushing it to its limits. you end up pay like $1700 or more for a complete set up for a bnr (pipes, bov, and more) as to $1950 for a zfr and still have room to play with.

 

Hardly. One of the bnr2871s I tuned made 407 whp 390 wtrq sae at 24-25 psi on 93 octane. That zfr is being pushed just as hard if not harder and is on e-47 and making the same amount of hp but with a bigger torque spike.

 

4000 rpm to max boost isnt bad. I had a crappy bearings in my 20g and it took 4500 to make max boost, the car still felt incredible. Guess where my boost reaches full boost now with the new bearings? If you havent read my post my 20g now makes full boost at 3600 rpm! I also did the rebuild to fix an oil leak and it was very easy. The rebuild is in the official lsj turbo build thread.

Great numbers but I am making the same numbers on a 20g at 22 psi on a conservative dynomite dyno. I would be making the same power as this turbo at 23-25 as well but I am on a stock fuel system so I ran out of fuel at 23 psi and 420whp.

Is this on E?

 

I have the 20g and love it, My swap didnt take 21 hours, but i also had the trasmission out. good luck with it!!!!

Also, i belive it was a HKS BOV in the pictures, idk wtf happend when i put my 20g on, it worked for maybe a day after then went out, i went thru 2 HKS BOV in 5 months, then just got a tial q.

 

The 25G is capable of pretty big power but it will come at a price (lag). If the car has valvesprings and can rev to 7500+ it will have a decently long powerband just have to drive it different than with the stock turbo.

 

awesome, i keep telling people this turbo is such a good deal and so much fun on the street. It builds boost and holds it to redline. My dyno graphs are before the turbo rebuild are flat from 4500-7500 400+ whp the whole way. Torque was 395 from the same rpms with a slight dip in the band. The 20g is a great way to go.

 

Yea, I knew alot of people were going to have problems with the ZFR, (just not making the power like ZZP did) i left too soon to get a dyno after my rebuild, cracked a piston, but as soon as i get home from this deployment ill getit dynoed. As long as i hit over 400 ill be happy.

 

you should be at 360-380 on 93 octane

 

it will be better then that!!! another guy i know has 435 on it. on 93, but also i will have Meth on it too, so that should help.

 

if you have meth than absolutely you should be over 400.

 

Meh, I don't agree at all. The 20g is cheaper than that and they're basically the same. Journal bearing turbo and they're almost the same size too. ZFR can make more power than both of them. Besides peak hp it will have much more area under the cure cause it can start power much sooner than either 20g or BNR. Ceramic dual BB turbo with billet wheel.. I mean seriously you can't even compare.

As much as I agree with you on other posts, this one I do not. ZFR is not being pushed hard at all on the 24 psi e47 tune I had used. Look at the compressor map and you can see if it was pushed it needs to be in 30 psi range which nobody here would take it to unless you have cams/fuel lobe or a 5th injector set up. Our cars are limited to 400-430whp by fuel(depending on dyno of course they all read different). No matter how you look at it, everyone is maxed out around there. I had to use 100 octane to get my EFR up to 29 psi, and even then I couldn't push it more. I was running out of fuel up top.

BTW, that is my dyno of my EFR not my current 25g. I'm still having boost related problems that I can't figure out. My EFR would reach full boost sooner than 4k rpm, I just needed a boost ramp because power would come up too soon when I would be canyoning etc, I'd just burn rubber LOL. With the current 25G I'm hoping to hit 400whp @ 22 psi using 91 octane.

Yessir, I need valvesprings and cams to broaden my powerband from both sides of the graph. Spool sooner and rev longer. I agree there's lag, I need to learn how to brake boost lol.

It's just a high reading dyno, but I don't doubt they hit 500whp though. Their 1/4 mile trap speeds prove it for sure, hitting 136mph is nothing to sneeze at. They had used e85 a stroked 2.1L LNF with cams and valve springs and fuel lobe. The used 41 psi on the EFR LOL. So, I'm sure if I did some build like that I could see me hitting 500whp with the EFR.

 

In for Dyno results...

 

Get after it fastgti, if you can go over 400 on regular gas than that is the way to go. I am only getting the stuff I am out of the 20g because of E. If I move from my area (not in the foreseeable future) I will have to tune it for 93 and only get probably 360-380 out of my setup. Which I would still be fine with. You have to run what you can get around you. I feel for you on the boost problems, took me months to finally get everything ironed out.

 

haha, me too bro. I need to get it running 100% first.

I have been going after it all the time in these 2 weeks. I've given up now and tired of it lol. I'm probably just gonna give it to the pros and have them fix it all in one day. Boost leak test and make sure my wastegate is tight shut etc. The problem is not really the 400whp part I'm worried about, I know it can hit that easily. It's the 91 octane at 400whp I'm worried about on a stock block. If it's not an aggressive file and I'm not pushing it too hard then I'll leave it there.