Hi!

Yesterday i was to the final mapping with my EF2 Setup! Result 450PS and 500NM !! Car feels great with 1.8bar boost (26psi)



Setup:
-ETS Intercooler
-MAP EF2 Ported
-GC Cams
-3" Turboback
-800cc Injectors
-mapped with 102 Octane Aral Ultimate

Hope you like it!!

Question btw. What was the max. boost pressure ever run with EF2?

 

New EF2X results for me:



-93 octane pump gas
-stock cams
-stock longblock

 

Thanks for posting Kracka, i forgot to update mine in this thread! I am jealous of your ride, it just works haha.

My updated charts...finally sorted fueling and everything else...turned up da boost!



Had to slow spool down, was surging badly. Here was max spool.



Ran at the strip last weekend too, I suck bad at driving, I'll just say best trap was 124. Best ET was 12.0 @ 123 with a 2.5 60ft. My clutch gave up and locked out everything else, only got 2 runs in, first time ever at track and very first run i forgot to take traction control off so it was horrible. So really one decent run. All on street tires. I think low 11's on street tires with good driving should be no problem.

 

I want the HTA Green however with the fact that FP uses OEM thrust bearings with single oiling ports, and their horrible customer service when it comes to turbo failure it has me really thinking of the EF series. Before anyone asks, no I wasn't interested in paying the Ball bearing price tag. However the problem is the EF2 is smaller than the HTA Green and the EF3 is more like a red.

- does the Ef2 have the upgraded thrust bearings with dual oiling ports?

- I noticed the install kit for it does not come from the filter housing? For high boost applications would it be better from the OFH?

- From what I have seen the EF2 is more of a competitor to the 71 HTA (with slower spool because of a the better flowing turbine wheel) and not the HTA Green as it is priced? thoughts? TD06 turbine wheel on it?

- Any chance for the 3" surge cover in the future?

- Would there be any benefit for me since I am making over 400 WHP/400 ft-pounds(yes it has been verified by Tom) on pump gas on my stock Evo 7 turbo according to VD logs on pump gas? (30 pounds of boost tapering to 24, 96-100 octane pump, ETS 3.8" intercooler kit, GSC S1, Map Rev3, FB 70MM TB, tubular manifold, Map 02 eliminator, AMS exhaust, etc etc)


thanks in advance for thoughts and opinions.

 

The ef2 is not smaller than the green, and is definitely not a competitor to the 71hta that is the EF1, maybe your confused. The EF2 is capable of making 500-515 on e85, but will void your warranty. I have used both turbos and the "hit" of the EF2 is far greater than that of the green.

The surge 3" housing actually hurts spool and is not necessary for an EF2, its too much air. Regarding the install kit, feed from the housing isnt needed on the EF2. However if you would like to add it im sure MAP will hook you up with a deal on the line kit if bought with the turbo.

They also use monster thrust with extra oiling holes as you said. Unless something changed in the past 4 Months? If you're making 400whp right now, then you sshould have no problem making 450-460 with an EF2.

 

Thank you for the reply Adam. 500WHP on an EF2 is very formidable. I actually have seen a 498 WHP dyno of one on E85 as well. Very impressive. Not trying to start anything, but the Green however has made 533 WHP on buschur's dyno which from my understanding is 600 WHP on a dynojet. Thats why I said it was closer to the 71 HTA, or if anything in-between the two. I think FP's swiss cheese OEM thrust bearings I doubt it would stay at that power level reliably. The best selling points for me is the monster thrust bearings, the turbosmart gate, and MAP's service.

Honestly with all things considered I am leaning towards the EF2..... After all numbers are just numbers. I care more about how reliable the car is, and how it performs. I have gone with 70+ lb/min turbos on previous builds and just invited alot more lag and alot more problems. Not going back. Just want something fun now that is a significant upgrade to my stock turbo which falls flat on its face at 7,000 RPM....I absolutely hate that.

 

Over 400 ft/lbs on a stock 7 bottom end? Careful they haven't proven to be the strongest we've lost quite a few over here.

 

why not just get the EF3?

 

Ya I know. It was actually making more torque than HP since I was holding 30 pounds from 3500-5500..... However since I have dropped the boost down to 26 pounds through my midrange. I haven't done another log because my stock clutch gave out, but thinking the car is around 380 ft/pounds. In your experience is that still too high on the early CT9A's? From what I am being told..... they have even weaker rods than the 8/9s.

 

It's crossed my mind....Honestly I would prefer full boost before 4,000 (from what I have seen the EF3 spools around 4100-4200ish on non-MIVEC 2Ls). I prefer the quicker spooling turbos. I just don't really care about making big numbers as long as my choice is a significant upgrade from my stock one. So if my upgrade can put down 40+ish WHP over my stock one, make a bit wide power band, a blast to drive, and not fall on its face above 7k. I think I will be happy.

 

I've been going back and fourth on which turbo to go with. I've been leaning towards the EF2 instead of an HTA green or red. My power setup

AMS IC+pipes
ported stock intake/exhaust manifolds, tb
Buschur TBE/tp
Megan o2 housing ported
GSC S2 cams (Mivec)
GSC springs/retainers
Head studs
Walbro 255
FIC 1050's
AMS fuel rail
E98 tune

Any guesses on my power with an EF2?

 

I am in the same boat at a crossroad between turbos. You barely have enough injector and pump for an EF2 much less anything bigger on E98/E85.

 

If it leans out I'll get a double pumper and another 255 Injectors should be fine.

 

Honestly MAP's ratings are somewhat conservative for their turbos for warranty purposes. So since you are on E98 I would use the power level what they are rated for by MAP for E85. Obviously they can make more, but its a good baseline to go for. So in the EF2 for instance you should be able to attain 450 WHP. The only thing I think that could hold you back is your fuel support. But beyond that, you setup looks good. My thoughts anyways. Good luck.

 

But I JUST bought these 1050's dammit! what injectors should I go with to support it?
I'm still a little unsure I feel like these injectors will be fine...

Lastly if this turbo is maxed at 450hp for warranty maybe I should consider the EF3. I'm looking for 500hp/400tq once I add a cop and manifolds.