I Prefer the Fcons, actually.They are standalones that retain the factory ECM for warm up and idle control.Also OBDII compliant when tuned right. i have ZERO codes and my car goes right through a state inspection no problem.

I just find that the stock ECU does not have some issues when dealing with the Fuel trim. Im sure it could have been tuned out, but i felt more comfortable with the Fcon and I knew my way around it like a master...So I put one in, set up the 2 step, a REAL 2 step!

 

I've seen well over 450awp (in person) on 93 octane. Message kreonic. He uses the CBRD BBK turbo with the stock engine.

 

I really appreciated all of this info, but a lot of it is for waaaay down the road (for me at least). Right now I need to get all of my IC stuff tuned and I want to get my money's worth. So, one more time:

Should I convert to speed density before the tune or is it not worth it given my current mods and intended final product? Anything else I should do to the car that is relatively inexpensive and not cams or a turbo?

 

No reason for you to have to do the speed density setup IMO, I would really consider just going to the ECU controlled boost with the GM solonoid. You can pick them up for around $50 and the pigtail harness to plug them into for like $15.

Then the ECU can compensate for weather changes and such automatically, I just did this conversion from a EBC and am really impressed with how much better the car drives now, and it made more power! If there are guys running 600-700hp on the stock maf and ECU then you should be fine at your 450hp goal, good luck!

 

Fair enough and good to know. I will get in for the tune then as is.

 

If you want a reliable, safe, daily driver then your probably going to need to go HTA35r. Theres no way your going to be doing this with just a ported stock turbo and to do it on a Red your going to need throw some major boost and timing at it.

HTA35r.... done

 

if ur talking 450 on a DJ, it can be done various ways...we have done MULTIPLE pump gas 24-28 psi BBK's that make 370-420whp on our dyno... easy 435-465 on a DJ

if you get a 35R youll get the peak power, but no torque compared to a stock housing turbo...

ive used 50 trims and made WAY better spool than any 35R and made 420whp on 93 and higher torque by 25-45wtq...

depends on ur goals and how high u want to be able to run the boost if u ever run race gas or fully built motor

cb

 

Do NOT go speed density or standalone!

The stock ECU is so powerful in the hands of a good tuner - it can do WAY more than any aftermarket ECU hands down. Your car will never run as good as it does on the stock ECU. Poke around in the ECUflash area and you will see what I'm talking about. 450 whp is no problem for the stock ECU.

Just get your car tuned for the current mods. Then save up and buy cams, a Red and injectors and have it re-tuned then. You'll hit 450 no problem after that.

 

I am discussing all of these figures in terms of AMS's dyno because that is where I will be tuned and what I will measure gains against. I think its a Dynojet? Not sure.

I plan to road race with this car so the torque of a stock frame motor is important.

My goal then would be 450awhp on AMS's dyno with stock bottom end. If this cant be done reliably, let me know that. I know the BBK and EVOred are competitors, what makes the BBK better than the red?

 

I think that sounds like a good plan

 

The red seems to be a lot more top end friendly, makes good power over 25psi. BBK seems to fill the gap between the green and the red, spools fairly early and makes better power on pump where the red seems to shine on E85 or race gas.

That's just my opinion from what I've been reading, if I'm wrong I'm sure somebody will let me know!

 

If 450whp is your goal, you could buy my Nissan Im selling...Then youll make 545 at 11 psi wastegate spring low boost.

https://www.evolutionm.net/forums/sa...ssan-350z.html

 

That is the key...

 

Very nice car, but I am struggling parting with 225 for my tune maybe if I hit the lotto soon

 

ididnt mean to make this a bbk promo, sorry if i came accross that way.

fp red is a great turbo also..

my point was, dont think you have to go to a completely different tubular garrett style turbo kit to get the power you want!

cb