It is not that easy, my friend. I have ben home on leave for the past three weeks and Megatron is finished. I have experienced some turbo issues and trying to get them worked out with Adam/Chris so that the car is 100% complete. The sad thing about it is that I am now in the Tucson Airport preparing to return to Afghanistan and this is the only thing that has prevented me from being done. I did not get the chance to drive the car one time since coming home on leave. As for the EF3, like I said, I believe it would be a more fun car with the fatter powerband provided by the 2.4LR.

 

Going back so soon. I can feel the pain of leaving without finishing up the project. Hope you will be back soon, Buddy (Do you know when??) I already got my EF2 installed but haven't been able to get my car tuned becoz my stock clutch slipped. Now, I'm on my new clutch (ACT HDG6) and am doing the break-in miles painfully slow

Good Luck to you, my good EvoBuddy

BTW, any graphs though??

 

I only had 20-days boots-on-ground for my leave period. I am now at 35K feet between Arizona and Atlanta with a flight tonight to Dubai, UAE with a final destination of Afghanistan. I may be finished as soon as mid-May with my current mission but we will see how the Taliban "votes" in this situation. Congrats on pulling the trigger on the EF2 as I am sure that it is quite the torque monster. As for graphs, none at this time but if you check out my Facebook page, I posted video o Megatron going through the RPMs just before my current issue surfaced.

 

I am still wondering why there is so much of a gap between the compressor wheel and compressor housing? Can anyone answer this because I have never seen a turbo with that much gap?

 

We tested several different clearances and settled on this one as performance was in line and a bearing failure (if caught early) doesn't necessarily require a wheel replacement.

 

I just finished reading this thread over again as I enjoy reading great results not to mention picking up on things that I overlook previously. Well, I started to notice all of the props the EF3 turbo was receiving and I thought I would put them all together in order to save time in the event of future members trying to decide if it is sufficient for their build. I have OCD so I apologize.

Here are the statements about the EF3 turbo:

 This EF3 is a damn good turbo!!!

 I'm really liking the results I've seen out of this turbocharger so far. I think this one may be MAP's big ticket into the turbo game.

 The off boost response almost makes it feel like a powerful NA.

 I love this powerband...stock turbo curve with the extra top end power we all want. I can only imagine what 30+ psi will look like.

 Mid 400whp is not too shabby with a stock-framed turbo on pump/93.

 Even on a stock 2.0 block the car never felt laggy and had amazing response out of the corners. In hindsight I’m very happy to have this turbo on my car , and after having experience with tuning , owning , and riding in BBK full , FP greens , reds , blacks , Gt30-35r , stock 9 turbo cars, I would choose this one before any of the above for my needs.

 Getsideways has an EF3 with stock block with which he placed 2nd at the latest GTA event and might have even given the first place finisher (Professional Awesome running an MAP EF4) a run for their money with some more seat time!

 NP. That would be easy on EF3 (this was reference to its ability to make 500whp on e85)

 My bolt on stock block car makes 46x WHP on the EF3 consistently time after time with ZERO internal work, STOCK MAF, Stock ECU 93 pump gas. I don’t see how it couldn’t crack 500whp on E85. This is at only 27 PSI at 7k. I’ve seen the turbo achieve 33 PSI at 7k in my car.

 The EF3 isn't much less than the EF4 flow wise although the wheel is a tad bigger. I have full confidence being that the EF3 should be just as powerful with e85. Not to include the EF3 spools faster as well.

 I hope you take my word on it that you will definitely like this turbo.

 As far as 500whp on an EF3 if we are talking Dynojet then I'm confident I've crushed that already making 478 on a MD. That was at only 23psi at 7K. I've since added a different fuel pump and 1450s and went from 28 to 34 at peak holding close to 30 at 7K so I expect to make well over 500 next trip to the mustang dyno which should equate to high 500s on a DJ maybe close to 600 stay tuned.

 PlanoEvo's EF3 beast is wicked. We were out bombing around in it earlier this week and you really feel the acceleration in the pit of your stomach!

 Ended up making 465whp at "only" 25.5 psi up top this time but ran out of fuel control. Time for rewire, etc. Still on stock FMIC / IC pipes / intake manifold / exh manifold. This is easily a 500whp+ turbo on a proper mustang dyno with a proper build and boost.

 What will be more fantastic is when it’s tuned and you just hit the accelerator and you get that big *** grin from ear to ear then you know it was money well spent.

 As of today the car feels great it drives great and from what I have seen it is very capable of making 500/500.

 Yea I have no doubt this will do 500+ easily once it's more sorted out and has a real WGA on the car.

 The EF3 is going to be one hell of a turbo.

 I would say the car feels like a stock 2.0 EVO with a stock turbo but makes about 200 more wheel horsepower.

 Oh, and I heard this guy take off down the street and the EF3 with the anti-surge sounds very similar to a BB turbo...very cool.

 Theoretically, it is my humble opinion that an EF3 powered car with a fully built 2.4l and every supporting mod imaginable could knock out ~610whp if they chose to disobey our recommended operating range. This is completely theoretical of course.

 I completely agree with you. I’ve seen this thing at 32 PSI at 7000 RPM on my motor. Currently it’s at 27 at 7000. I’m very confident that even on my car 540+ is possible.

 The trend with the EF3 is that it loves to keep making top end power. 550 hp 500trq would be more likely.

 My best guess would be 60-61lbs/min on the EF3. The EF3 has a bit larger comp wheel than the HTA Green.

 And trading or selling your GT35r to make it happen is even more proof that these turbos are outstanding.

 I'm running ~465whp with an EF3 at the moment (albeit on E70) but in regards to the well-being of your bottom end I think you'll be just fine. (Chris Carey on stock motor)

 Go EF3 you won’t look back!

 The Full Blown 340 pump seems to be a great match for the EF3 on E85.

 Then I’d do EF3 all the way. Trust me you'd have an erection all day long.

 I know Getsideways has a built motor with his EF3 and it’s a monster.

 The EF3 is a very nice well-rounded turbo for the street.

 That is where I was going with when I said "fatter powerband" on the EF3. Sure the EF4 might get a person to their magical 500whp goal on stock block, but the EF3 could be faster all over still even with keeping the torque lower yet as the powerband is better.

 If you want that 500whp/400tq and that’s your goal period then go with the EF3 you will not be disappointed trust me.

 Now imagine if you had a built motor you'd have the motor supplying it as well I bet the EF3 with a built motor could do 600/525tq no problem.

 EF3 is the best option for a stock block if you aren’t exclusively a drag racer. Even then on the stock block it’s not far off. If I had to do it again on the stock block I would stay EF3. It’s a better all-around turbo and still is ''laggy enough'' to make tremendous power on the stock block while being very responsive.

 EF3 should have plenty for most everything along with wicked street response.

 Good luck on your build. Good choice on the EF3 makes me smile every time I’m in the car!

 I am glad that you see the awesome benefit of selecting either turbo. Personally, I am a fan of the EF3 which is why it is sitting in my garage looking pretty.

 EF3 is right in between the red and black as far as top end power and nearly identical to the red in spool up which puts it ahead of both the BBK Full and Green by a fair margin in flow numbers.

 It seems the EF3 at this point has been the MVP of their lineup IMO.

 I really like the turbo a lot. It is a little laggier than my previous EVO 9 turbo but for the size and power it makes it’s not bad at all. I love it.

 On my 2.0L LR it is hitting about 21-22psi right at 4000rpm.

 The EF3 on a 2.4 feels better than a stock turbo on a 2.0 BY FAR. Third gear and fairly positive boost in the 2500-3000 is odd feeling (in a good way).

 

my friend, you should another for the EF2 ;-)

 

I nominate that you do it and I will start one for the EF4.

 

My MAP EF3 powered Evo set two new time attack records at FireBird International this past weekend and took 2nd and 3rd place in NASA TTU. {thumb up}

Race proven!

 

can you add Brians graph and remove the old please: (stock block, s2 cams, SD & ecu boost & e85)

 

correct me if im wrong, but does that hit approx 30psi at approx 5000rpm? do u have anything 4th gear pulls graphs??

 

This is for cursedsm, right?

 

Here is a taste of what it can do, this is the same EF3 turbo Only 26 PSI peak, E70 AFRs in the Mid 11s, Timing is less aggressive then my old pump gas timing to give you an idea of how much power is left on the table.








Same boost levels overlays of the 2.0 vs. the new 2.4 setup...








And yes tom i will update his in the first post

 

I am very impressed to see the +40wtq with the 2.4L. This is very good news, my friend.

 

At which rpm did you see peak boost for each of the runs?