Cr injector upgrades
- Thread starter Kevinnss
- Start date
I have upgraded it all. Bigger turbo the works just haven't been able to find injectors that aren't am arm and a leg. I'm rebuilding a cjaa for nitrous and a compound turbo set up so I'm looking to get the most fuel in as I can
adjat84th
Veteran Member
Buy once, cry once
Not sure if the CUAA piezos would work, but they flow an incredible amount from stock. Otherwise, pony up for Darkside's offering or reach out to S&S Diesel. Darkside almost certainly will include a duration map for theirs, which is critical for tuning.
Not sure if the CUAA piezos would work, but they flow an incredible amount from stock. Otherwise, pony up for Darkside's offering or reach out to S&S Diesel. Darkside almost certainly will include a duration map for theirs, which is critical for tuning.
Bigtoy302
Active member
Darksides are modified CUAA injectors. I bought them and sent them back. They don't fit very good and nozzle is not the right length.
I ended up sending mine to S&S and had them go 200% over on them. Not cheap with a duration map.
Larger injectors are pretty much useless unless you go super high boost or port the head. With a single turbo the head maxes out around 260HP. Andre at S&S did prove a stock head will do 400hp/600ftlbs with compounds though.
I'm building a 450+HP CJAA right now and should have it on the dyno this summer. Ported head, big valves, Colt stage 2 cams ( requires head and piston machining for clearance), ARP 625 head studs, 200% over injectors, R90 CP3 and probably going to run it off Motec. I have a Holset HE200 4cm for a HP and then probably go with a Borg S366 or 369SXE for LP. My engine is in a Toyota Tacoma with a 5 speed but I'm working on a ZF 8HP adapter for it now that will go in along with the built engine.
adjat84th
Veteran Member
The duration map they provide (at least for mine) has nowhere near the amount of data that EDC17C64 uses. It was enough to get us going though.
Sounds like an awesome build you have going there!
We're around 330bhp/440tq at the moment on my CUA, limited by charge temps (and resulting EGTs). The stock A2W cooler is just running away with temps after 4k RPM, and thinking an additional front mounted A2A cooler in the bumper is next step. Personal goal is 500tq, so we'll see.
Im very curious about the head performing at 400hp/600ftlbs. Is there any video or like thread about this somewhere?
Bigtoy302
Active member
All depends on how many test points you pay for. 100 points minimum is what I'm told and 10 per test point so $1,000 duration map. I think the EDC uses way more than that but again I'm going Motec from them so should be enough.
There are a couple videos of it on S&S diesels Instagram. That power was only at 3500rpm. He never fully tuned or finished the project. Engine is for a RX7 drag car.
adjat84th
Veteran Member
And I believe that motor was originally in another user's AWD Audi from this forum. I'm forgetting who at the moment. 450hp CR build I think in the title. That build inspired me to do the CUA with solenoid injectors.
TDIsyncro's thread here.
TDIsyncro's thread here.
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I've reached out to s&s they sent me to darkside. I'm building mine fully and might upgraded my cp3 again mine off of the 6.7 cummins so it's not hard to hot swap the internals I want over 500 on just pump diesel. It will work great or blow up lmao either way. I'm also doing some prototypes as well. Full aluminum valve cover with ls ccv and a full aluminum swarl flate delete plate with a bigger intake manifold. I ported my heads more since I'm doing my fab work my self. So fingers crossed
Xman does offer a 20% over set for CJAA. Don’t know if it’s enough for your build though lol. Good luck!
I reached out to them to see if they are increased in a bigger injector build. I'm looking at getting cuaa injectors and honing them bigger honestly. I have a company willing to help me. Fingers crossed boys
Macradiators.com
Veteran Member
made over 50 sets over the years, plug and play, no oil and fumes leaks , oem looks
i only work with new injectors, in stock
i only work with new injectors, in stock
Is your website still your username? I'm receiving a 403 error when trying to visit the site
adjat84th
Veteran Member
Try CP3 Upgrade & Turbo by MAC Performance on Facebook, he's usually very responsive
Not to completely derail this conversation but this is a high HP CR thread.. I have to ask. How is that GTE2260VZ treating you? Also what's your driving environment and how's the responsiveness? (high altitude/surge/lag)
adjat84th
Veteran Member
Haha, it's pretty sweet I gotta say. Sounds like a supercharger with the anti-surge design. Comparing to previous GTD2265 and GTB2365, it moves more airmass at the same boost levels, and thus we have hit the MAF limit. So that is next upgrade, 90mm BiTDI MAF.
It's more responsive, and better low end airflow aka drivability around town, though that comes with some surge potential that can be tuned out easily. Really really nice unit and full credit to @Xtremefunky to make this all work so nicely together. 46mpg on my last tank too
It's more responsive, and better low end airflow aka drivability around town, though that comes with some surge potential that can be tuned out easily. Really really nice unit and full credit to @Xtremefunky to make this all work so nicely together. 46mpg on my last tank too
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I keep looking at this turbo on Muchboost, I want it so badly lol. But my summer density altitude here is typically over 8K FT elevation, and I frequently drive to Colorado on I70 which takes me past 12K FT elevation.. so have to stay with something smaller
I'm glad you're out there living my dreamsBigtoy302
Active member
Darksides stage 2 injectors are just modded CUAA injectors and will not be enough fuel for 500HP. My 200% S&S's should though because that's my goal also is 500+ fuel only. I have Colt stage 2 cams and associated machine work to make them work though because they are not drop in. Not sure you will make it there on stock cams.
Be careful porting the head. There is very little meat in a lot of areas. I sliced up a whole head to check thicknesses of everything. There are water jackets around everything and very thin around the glow plugs.
I made a billet valve cover for mine years ago and made one for Andre at S&S also. Get ready to make a huge mess with the pcv system unless you're deleting the vac pump. They push so much vapor even a good catch can will make a huge mess. I'm deleting my vac pump because i'm using 2 wastegated turbos for the compounds. I'm planning on making a billet/fabbed intake also.
You're also going to absolutely destroy any stock transmission at that power level. 02m with full dog box setup is the pretty much the only way. A Dq500 may hold though. At 500HP you'll be close to 700ftlbs.
I'm still gathering parts and still waiting on Baldur to get a piezo driver done (he has the prototypes now) so I can run this thing on his DID1 standalone. Tuning is going to be a issues also at that power level so find a good tuner who wants to spend the time for the edc17 ecu or go full standalone too.
I'm also building a water brake engine dyno first so I can do lots of dyno testing on this. I will be posting videos of the testing since nobody is really doing anything with the common rails.
I have pictures of my build so far on my IG @rydelfab
What are your plans for turbos?
SimoneCUAAmk6
New member
Hi everybody finally I might have found something for mine.. 0445110369 + 80% from rid corona in Italy they should flow 205mm3 at 2200 bar and 1100 us.. I'm pretty sure I can't reach 1100 us but if I can make 180 mm3 it should go above 410/420, I'll let you know if someone is interested.
Right now my Cuaa is running 0445110471 from gtd184 at 2500 bar and 1030 us and I've made them test and they flow 160mm3
Htd3050b2 from turbosystems at 3.2 bar on tubular manifold egt less than 900° and emp 1/1 at 5000rpm
Wmi 50/50 with 500 nozzle
Recently I've swapped dq500 because my 6 speed manual broke and as expected from 100/200 draggy same time even if if the car is 30kg more
Best time RN 8.82 full weight car 1410kg + 90 driver
Right now my Cuaa is running 0445110471 from gtd184 at 2500 bar and 1030 us and I've made them test and they flow 160mm3
Htd3050b2 from turbosystems at 3.2 bar on tubular manifold egt less than 900° and emp 1/1 at 5000rpm
Wmi 50/50 with 500 nozzle
Recently I've swapped dq500 because my 6 speed manual broke and as expected from 100/200 draggy same time even if if the car is 30kg more
Best time RN 8.82 full weight car 1410kg + 90 driver
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