Stage II done, What now?
07-03-2013, 02:07 PM
#31
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07-03-2013, 02:59 PM
#33
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Upgrade the driver
No seriously. Get out on the track. You will soon not give a **** about upgrades, and start bemoaning how much $$ you are spending on tires and brakes and how all you want is your car to be RELIABLE.
And as the nut behind the wheel gets better, you start thinking about going fast in a beater. Or a Miata. Or a Miata beater.
*totally serious*
No seriously. Get out on the track. You will soon not give a **** about upgrades, and start bemoaning how much $$ you are spending on tires and brakes and how all you want is your car to be RELIABLE.
And as the nut behind the wheel gets better, you start thinking about going fast in a beater. Or a Miata. Or a Miata beater.
*totally serious*
07-03-2013, 03:10 PM
#34
MBC is used by some tuners who insist on them - not a necessity by any means. fuel pump decreases chance of an engine-destroying lean condition when boost levels increase over stock. cold air intake, again, has been discussed ad nauseum on this and other forums. my understanding after reading most pf that and from talking to several reputable tuners is that they've been shown to not add any performance gains when using stock location VF** turbos with stock fueling and reasonable boost levels. I think the commonly cited whp figure is 300, after which a stock mount turbo may (MAY) run out of air and need more via a CAI or SRI. Maf scaling is apparently a challenge with short ram intakes and stock turbos, but I'm no expert. I'd suggest calling several tuners and preparing yourself to get several different answers.
my STi makes 280/300 on a conservative 15.5 psi FLI protune on an AP with EL headers, Cobb catted turboback, stock airbox w/ k&n panel, walbro 255, and completely stock underhood fuel system and boost controller. no problems whatsoever, and my motor is completely healthy.
my STi makes 280/300 on a conservative 15.5 psi FLI protune on an AP with EL headers, Cobb catted turboback, stock airbox w/ k&n panel, walbro 255, and completely stock underhood fuel system and boost controller. no problems whatsoever, and my motor is completely healthy.
07-03-2013, 03:17 PM
#36
Enlighten me here... what does a Manual Boost Controller or Boost Solenoid buy me? I've always understood that the waste gate etc was all pretty heavily ECU controlled on Subaru's. Do the factory units leak or cause some sort of restriction?
Similar question with the fuel pump. A pump by itself does not make power... are we just getting near the edge of what the OE pump can handle?
Believe me, I understand the value of a custom tune; I used to work at a Dyno shop.
Just want to get the powertrain combo set before paying for a Pro-Tune.
Similar question with the fuel pump. A pump by itself does not make power... are we just getting near the edge of what the OE pump can handle?
Believe me, I understand the value of a custom tune; I used to work at a Dyno shop.
Just want to get the powertrain combo set before paying for a Pro-Tune.
As far as the fuel pump, the stock pump simply runs of out flow on the top end with a setup like this. This causes a drop in fuel pressure up top which results in a lean condition even with the injectors maxed out. An upgraded pump holds consistent pressure up top which allows for a safe a/f ratio to keep the engine healthy long term.
Thanks
-- Ed
07-03-2013, 04:03 PM
#37
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Ed- thanks for the solid answer...
BTW - it's a rare moment when a shop will not try to hock their own product (cross pipe) at all costs. You (as usual) are a gentlemen.
BTW - it's a rare moment when a shop will not try to hock their own product (cross pipe) at all costs. You (as usual) are a gentlemen.
07-03-2013, 04:11 PM
#39
J/K of course! We actually made the cross pipe because I did not like some of the others on the market from a design standpoint. I don't sell a ton of them because I still recommend full upgraded headers to a lot of people wanting really significant gains. The cross pipe gives slight gains and I generally recommend it if someone really wants to stick with the stock header but wants another small addition to their setup.
Thanks
-- Ed
07-03-2013, 04:16 PM
#42
Upgrade the driver
No seriously. Get out on the track. You will soon not give a **** about upgrades, and start bemoaning how much $$ you are spending on tires and brakes and how all you want is your car to be RELIABLE.
And as the nut behind the wheel gets better, you start thinking about going fast in a beater. Or a Miata. Or a Miata beater.
*totally serious*
No seriously. Get out on the track. You will soon not give a **** about upgrades, and start bemoaning how much $$ you are spending on tires and brakes and how all you want is your car to be RELIABLE.
And as the nut behind the wheel gets better, you start thinking about going fast in a beater. Or a Miata. Or a Miata beater.
*totally serious*
07-03-2013, 04:28 PM
#43
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Originally Posted by chimchimm5
Upgrade the driver
No seriously. Get out on the track. You will soon not give a **** about upgrades, and start bemoaning how much $$ you are spending on tires and brakes and how all you want is your car to be RELIABLE.
Upgrade the driver
No seriously. Get out on the track. You will soon not give a **** about upgrades, and start bemoaning how much $$ you are spending on tires and brakes and how all you want is your car to be RELIABLE.
This Guy
and I agree
07-03-2013, 04:39 PM
#44
Might not know what stage 2 is???
Probably cause you are a boob and have never owned an sti. Even the dumbest sti enthusiast I have met knows that tbe/tune is stage 2.
Anyways I'd go with 1) fp 2) mbc 3) custom tune. Not a fan of the sound of headers or the top end vs. low end aspect, but you get more power. I went for the ported stock and cross over heated treated for low end and rumble bumble boxer. Obviously if there are any other little power mods or exhaust or anything that requires retuning you want to do before the custom tune or pay twice.
The MBC isn't needed over electronic or stock, it's just a matter of wanting a better smoother/more consistent tune. They make electronic ones but my experience having had stock and both mbc and electronic there is no question whats better in my mind (manual). Electronic just add's another software component to the mix for tuning making it less consistent when there is no need to complicate the situation. Extra variable .
Probably cause you are a boob and have never owned an sti. Even the dumbest sti enthusiast I have met knows that tbe/tune is stage 2.
Anyways I'd go with 1) fp 2) mbc 3) custom tune. Not a fan of the sound of headers or the top end vs. low end aspect, but you get more power. I went for the ported stock and cross over heated treated for low end and rumble bumble boxer. Obviously if there are any other little power mods or exhaust or anything that requires retuning you want to do before the custom tune or pay twice.
The MBC isn't needed over electronic or stock, it's just a matter of wanting a better smoother/more consistent tune. They make electronic ones but my experience having had stock and both mbc and electronic there is no question whats better in my mind (manual). Electronic just add's another software component to the mix for tuning making it less consistent when there is no need to complicate the situation. Extra variable .
Last edited by slow04wrx; 07-03-2013 at 04:43 PM.
