On the fuel pump studs, do you have a welder available? I have been successful at welding a nut to a broken stud, then removing it with a ratchet.

 

I may try this as the stud in the block is in almost exactly the same situation lol it's a 12.9 and had some bits try and drill it.

sadly no or I would have tried already. I'm debating taking the motor out again and figuring a couple things out. I have a bunch of work to do and in the long run I think it may just be easier to pull the motor and work on it out of the truck. removing the motor isn't too bad. Half tempted to buy a master rebuild kit and put mahle marine pistons in it.

 

installed the new injectors today. Discovered that the holes on the supposed 7x14s are bigger than the holes on the 5x16s so something is amiss there...

In other news the new injectors make almost 10 psi less at WOT, with a total of 45PSI, so there's less fuel now. It may make a little more it's tough to say at this point as I have to put it in 4hi to keep any kind of traction with the snow that keeps falling, and I don't keep traction so it may not be loading the motor up properly. And at 60mph and 45psi it's not the safest on slippery roads if ya know what I mean...

There seems to be less surging with the new nozzles, and less boost needle bounce too. MUCH less smoke and much less haze at idle. The truck cools quicker and runs cooler. Then again, they are a lot smaller of an injector apparently, and it's noticeable that there's less fuel overall. Weren't supposed to be smaller injectors but anyway (total cross sectional area of 7x14s and 5x16s is very close)... I'm sure the correct spray angle is helping some in all areas as well. The throttle isn't as touchy, and the fuel comes on smoother. It's just better. The denso nozzles by comparison are total junk for a 145* piston. I bet they would be better for a non-ic motor. I'm going to send them to my local shop to be cleaned and repopped before I sell them. Before I do that though, I want to find out which set of injectors aren't what they are supposed to be.

I still haven't done my before video for the turbo swap as I wanted to get the new injectors in (and now I'm second guessing and thinking I won't have enough fuel for this arora 4000). That and with the constant snow and lousy road conditions it makes a before video near impossible to get a good, proper video up.

 

boost peaks somewhere above 45. More like 46-49 psi in OD. and 43-45psi in 3rd. It's hard to tell exactly with the needle bounce

I'll hit 1400F on a WOT run in OD (temps still climbing). like 50-85+ mph, and the heat starts to flatten out above 1300. Still hazes pretty good at WOT. So it seems like there is a little more fuel to be had above this size of injector, but not a whole lot as compared to the other set of injectors. I'll tinker with my fuel screw maybe and see if I can get any more out of it.

If I had to guess, I would say I got 5-6psi more boost with the other injectors, and a lot more heat. It would run past 1500F on the pyro like it was going out of style.

Before video coming soon... I will try to fit it in... I need to do it during the day, and I have a hunter safety course the next 4 days. (6-10 tonight and tomorrow and 8-5 sat-sun)

 

aaaand here it is, finally. the before video. This is a 1250rpm start WOT run in OD. Speedometer is in kmh.

If you ahve the volume up, you can hear it surge when she lights up at around 1500 and you can hear it subside a bit then surge much worse up over 1800rpm before equalizing around 2000rpm.

I rolled into it and had maybe 80+% throttle by 1500-1600rpm, but couldn't give it any more throttle than that until closer to 2000rpm when I went full WOT. If I went full WOT any earlier it would downshift

The 4th gauge down is the fuel pressure, it's the only one you can't see clearly.

http://s113.beta.photobucket.com/use...b999b.mp4.html

 

got er on today and almost buttoned up. Have to do a little exhaust work but it is drivable, which means it hit the road tonight.

It spools a lot slower, but that's not saying much if you look at the video of the 62/65. That thing lit incredibly fast. 35psi by 1500rpm on that turbo is crazy fast. with that turbo there really wasn't such thing as turbo lag. So by comparison, this turbo does have it. This a4000 still spools better than the s300 did on the ppump motor when I ran it on that.

This turbo seems to light up hard around 1700 but it's hard to tell for sure right now because I wasn't able to give it a lot of throttle down low or it would downshift. Once I fix the exhaust I'll pull out the laptop and hit the road with a camera for you folks

I'm making somewhere in the 43psi ballpark WOT, which is a little less than what the s300 made. Not surprising, it seems to shine up top compared to the other turbo. Probably has a bit more power throughout the powerband but not much thus far. I ran it to 3000rpm and it didn't lose any power whatsoever. The other turbo was starting to slow by then

To get full benefit from this thing you would need an external gate set in the 45psi ballpark and just throw fuel at it, which I don't have enough fuel to do with my little VE.

oh and it sounds a lot different too. I can hear the turbine wheel a lot due to the state of my exhaust. It almost sounds like a 6.0l ford coming out the tail pipe. It's muffler-less at the moment. I haven't had a straight piped truck for a few years but hearing it scream tonight made me sure miss it.... it sounds mean, but i like it, because it IS mean.

oh and lastly, cruising temps seemed relatively unaffected but cruising boost seemed to be down a couple psi. and it takes less boost pressure to achieve the same acceleration as compared to the other turbo. it is unclear if it's less throttle too.

 

Look's like it's powder coated turbo housing atleast it will last longer Nice Toy

 

ya, I think it is powdercoated. It is definitely a unique turbo, and should be able to push all the air the 12mm VE will need.

well I went ahead and ordered a new turbo back exhaust. I'll have to use my dp, but everything else behind that should work. expected delivery is mid week next week so if I had to guess I'm thinking next weekend it should be done and I can take a video. Then again, I'm sure you all know by now that I never seem to get things done when I would like. On the other hand, I'm eager to get this going. I'm excited to see what she really feels like!

 

ok so I have had a lot of delays. It's seemed to either be too cold during the day (-20C daytime high) or the roads are a mess from several snow falls. I did do a video last week but it sucked and you couldn't see anything. I tried again today and I'm having a hard time getting it to not go out of focus, or be really shaky. Or both.

It seems to me that it takes about the same amount of time for the truck to go from 1250rpm to 2250 rpm with both turbos in OD.

Cruising boost psi is down, but temps are about the same. This turbo, relative to rpm, spools slower to start, but takes off quicker when it does light. I can currently get about 18-20psi at 1500rpm in OD. Still pretty darn good for the size of turbo if you ask me.

WOT temps are down on the same 1250rpm to 2250 rpm run, but not by a huge amount. Temps seem to rise slower as well.

WOT the smoke out the pipe is less too, almost entirely clean.

I'm trying to get a video up but it's just not working so well...

All in all I WILL get a video when I can get one that is of decent quality. However, the turbo is great. The truck really shines more in the 2000-3000rpm range than it did before. It seems faster once it's spooled and it seems to have a bigger power band too, but that's probably due to a larger all around exhaust side.

My consensus is this turbo would make a GREAT 700-800hp compound build with a 188/220 hamilton cam and run an external gate.

I really don't know how this thing would spool with a stock cam, and no turbo blankets but I don't have any problems spooling it and I don't think I'm even at 450hp, maybe barely over 400 right now.

EDIT:

As an aside I seem to get some pretty bad surging once I hit 35psi in the 1600rpm ballpark. It's really bugging me... Maybe I just need some porting or something I don't know but some part of me feels like there is a hidden issue somewhere or rather... I don't know...

 

Also, WOT boost seems to be about 46psi right now. The turbo seems to liven up a little bit more with every drive. It's still breaking in. It hasn't even seen 500miles yet I don't think.

 

I got a little overwhelmed reading so pardon the question; did you ever figure out the injector size?

How is the 4K doing for you?

I guess my real question; worth the coin or do I still need to plan on a primary?

What pistons are you running, what camshaft, and any idea of pump cc's? <sorry too lazy to click back a page to look at Sig.

 

ya no worries

I love the a4k. Spoolup is slower but still great imo. 18-20psi at 1500rp is great if you ask me, and it lights quickly at 1500-1600rpm. EGTs are cooler and it's making more power. All one can ask of a big-ish turbo really. The only thing I'm curious about is how this turbo would fare in comparison to a much cheaper 63/68/.85 (probably $300-400 cheaper from FI)

I think it's worth the money over a 64/71 from other big dealers ya. The only downside is this turbo doesn't have a wastegate where as those other turbos will, usually.

As for the pump, no cc's. I never benched it, just tuned it and did a couple custom things to the afc. secret stuff of course. Stuff that seems to have worked very well for me. I'm running the stock pistons, with stock bore, hamilton cam, and manifold and turbo blankets, which help spool things up. For all intents and purposes, stock compression. Block was bored 0.010" but I'm running a 0.010" over HG

I never did get a definite answer on the injectors, but I think the ones I have now are 5x16s and they are from DAP and the other ones that were supposed to be 7x14 were actually 7x23 competition injectors. The only other option is my 5x16s are actually like 5x12s or something, but I can't see 5x12s making this much power, or boost with this turbo.

That help you any?

Honestly, I think an a4000 is probably too much turbo for a 12mm VE. It's more air (hp wise) than the VE can fuel for. I would run a 63/68/12 gated and unless you needed to lower egts, I wouldn't bother with a set of compounds on a VE.

I'll try to make a better quality video today before I go back out of town.

I hope thats not too confusing.

 

Didn't confuse me at all thank you for the information. I'm just not sure about the t3, I'd like to move to a t4 if I stay single. You have a P.M.

 

I finally got to responding to that pm sorry for the delay. I forgot I had the message.

I do have a couple videos that I think will work but I just need to find the time to pull them off my phone and upload them to photo bucket.

Sent from my Galaxy SIII via tapatalk

 

If this works it's the video of a 1250rpm to 2250rpm run in overdrive. Basically all the same circumstances, weather, mods etc as the s362/65. I apologize for it being a bit shaky. Especially at the end.

http://static.photobucket.com/player...ps6f0f4106.mp4

Not sure if that video will work... Or how good the quality is. I uploaded it to photo bucket using my phone and I'm still using my phone to put up on here...

Sent from my Galaxy SIII via tapatalk