Lol, Aaron, you act like being 380-390 whp is that shy off 400. It's really not that bad to have 380whp safely on 93 octane at 24 psi. It's a night a holy fuckballs day difference between the k04. Trust half the guys here, they already have the turbo. It does wonders even if you're not exactly at the 400whp mark. If you feel manly, and want more power. Just go grab some 100 octane, tune for it, and you'll be well over 420whp @ 28psi.

 

320whp on a K04 and 380-400whp on an EFR are absolutely night and day different like Payam basically said. The power curves are COMPLETELY different. Just for comparison sake, here's an overlay of my k04 on e47 @ 25psi compared to my 6758 on e35 @ 25psi. Power does nothing but climb on the 6758 with plenty of room to go while the k04 obviously falls off on top.

 

Not only that, who cares about dyno numbers. Its all about what it can do at the track.

 

Somerset is like 45mins from me. So ya it definitely wouldn't be practical.

Not everyone goes to the track though so it's not all about what it can do at the track. Its the overall feel and the complete power band of what it is compable of and how it pulls. I enjoy the **** out of my car when I drove it to work. I was only at the track twice this year and it proved nothing but that I can spin the tires the whole way down the track.

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Hence why it's pointless to have all that power with no way to use. Why spend the money to make more power when it's in usable power on the street or track? IMO the point of up grading the turbo would be to be faster not run the same times as a stock turbo car. That's just me, to each his own.

 

Personally, I could care less about what this car could do at the track. This is my street car and that's where it will stay for me. My point was only to compare power potential via gains. A 70 whp with the same mods, same boost pressure on the same dyno is a true heads up comparison of the two turbo's power bands.

 

I completely agree, and thanks for posting the graph for the perfect comparison. I think that answers all questions as far as this goes.
$2000 for 70whp and a bigger powerband with only 500rpms slower spool than stock...

 

im not saying people should push it that far but thats what its rated to. the rest of the stuff is a variable based off the car and whats done to support the stuff. you know that.

honestly i couldnt tell you what my car did with the stock turbo... my original car i didnt even bother with bolt ons and just went right for the big turbo setup. finished up prototyping the percision stuff and decided it wasent for me and went to an efr. 442whp 450 ftlbs 25psi 6200 rpm on the percision stuff vs 416whp 427 ftlbs at 25psi 6500rpm.

cant really dyno this car right now as our new dynos on order and hasent arrived yet. but not its got bolt ons and a solid tune.

 

wr2 or wr3 that made 442whp/450wtq???

 

subed

 

5557 precision did that

 

Pointless? Lmfao. It definitely ain't pointless. Its a blast. Its nuts. It puts a smile on my face doing a pull in any gear and just pulling on about any car. Its pretty funny you mention running the same time as a stock turbo car. I'm running the same time as a stock turbo car without getting the same 60fts as I was with stock turbo and I'm partially spinning third cause of the 4.45s and I'm trapping higher than I was before. Need I same more about running the same and being pointless?? If I had slicks it'd be a different story, so then again your point of running same times would be worthless cause I wouldn't be running the same times. Then again I did run a 12.89 on street tires on a butt 60 cause of spinning.

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Keep it 3-5gph, 100%, and run it pre compressor. You'll love it.

http://www.lolachampcar.com/pci_ring_fueling.htm

 

It's just my opinion. Some guys justify how the car runs based off dyno #'s and doing 60-120 pulls, just not my thing hence why I wouldn't justify spending 2k on a turbo to just have a higher trap speed and run with a stock turbo car. If I were to buy a zfr, I would first get my suspension set up, loose the brembos, and get a slick and run 11s. Gaing et's and being quick from a dig on the street would justify it for me.

 

3-5gph is too small.

We are going to play with a 12gph and 100% meth. But it's not going pre compressor, not happening.

 

That was the original plan, but after seeing the post on here about the 4 port spraying. I will be doing that. Its a much better setup. probably 4 @ 3gph nozzle, maybe 4gph. This setup will be cleaner and work better. Going to 100% meth cause i sick and tired of mixing it, and well i want a bit more tq hopefully.

 

Why?
Temps will be lower than spraying post.


If you're going pre comp and are blow through maf, keep it small or else you'll get the maf wet. Have to stay low enough that its completely vaporized by the time it gets that far.

 

pre-turbo - wont that cause extra wear on the turbo?

 

Over a LLLOONNG time spraying too large of (or poorly atomized) its possible. The key is the finest mist possible and being as close to wheel center as possible (point of lowest tangential velocity)

This has been debated and proven for years on forums that are quite a few steps ahead of this one. The results are there. There's no reason to reinvent the wheel.

 

Yesss!

 

Agreed.....I looooove the passing power. Its amazing on streets...especially when drivers are being so dicks and try to speed up.

 

^ this 100%. i cant wait till i get the new gears installed, its all about acceleration to me.

 

4 port spraying is ideal if you need it for fuel. If you need it for cooling needs I would do both preturbo and post intercooler. The pre turbo will lower the temp so much, that you will be able to tune much easeier too. The WGDC will drop and power is made faster. 4 port setup is badass though.

 

Well for fuel AND cooling lmao. Guess i will see what my lil ZFR will do in the spring

 

Oh, I thought you were only like 20 mins or so away.