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Old 11-07-2016, 07:44 AM   #1
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I'm not sure why people are still suggesting 20yr old technology to run high hp motors these days. If you've spent some cash on your motor/setup, it behooves you to spend the additional money to get an adequate EMS. PFCs and ROM tunes have their place on mildly modified/stock cars, but they do not belong in something making decent power. There are so many more affordable options available with far more processing power and I/Os to setup anything function you want.
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Old 11-07-2016, 09:51 AM   #2
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Originally Posted by jr_ss View Post
I'm not sure why people are still suggesting 20yr old technology to run high hp motors these days. If you've spent some cash on your motor/setup, it behooves you to spend the additional money to get an adequate EMS. PFCs and ROM tunes have their place on mildly modified/stock cars, but they do not belong in something making decent power. There are so many more affordable options available with far more processing power and I/Os to setup anything function you want.
sr20 = not a high hp motor (and if it is, you have bigger problems)

I'd rather spend $800 on a 5.3L from a van than $1800 on a computer for a 2.0L. Money spent wisely gives a higher HP to $$ ratio. The right stock 5.3 Will hold 500-600RWHP reliably for many years, in a 240sx chassis. If I can hold 650rwhp down with a $350 computer in a plug-and-play sequential application, then just to even THINK of suggesting that we need a $2000 computer for some reason, better have double or triple that power. Sequential is Sequential, its not like spending more on the computer is going to make the engine run much better at wide open throttle when it comes down to it, they do the same thing.
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Old 11-07-2016, 10:03 AM   #3
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Originally Posted by Kingtal0n View Post
sr20 = not a high hp motor (and if it is, you have bigger problems)
You're right, an SR in factory or BPU trim isn't. When you start pushing 5-600crank hp, it is. Having a means to monitor and protect your investment is what upgrading to a quality EMS is all about, regardless of the amount of power you're making. You don't see your beloved 2j making gobs of power on a stock EMS do you? We don't care if you live or die in your stock, don't upgrade anything mentality and world, but leave your bible thumping 2j rhetoric out of this thread.
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Old 11-07-2016, 11:10 AM   #4
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Originally Posted by jr_ss View Post
You're right, an SR in factory or BPU trim isn't. When you start pushing 5-600crank hp, it is. Having a means to monitor and protect your investment is what upgrading to a quality EMS is all about, regardless of the amount of power you're making. You don't see your beloved 2j making gobs of power on a stock EMS do you? We don't care if you live or die in your stock, don't upgrade anything mentality and world, but leave your bible thumping 2j rhetoric out of this thread.
a 5.3L is an LSx V8, not a 2jz. I never mentioned the 2jz. That said, yes I've also been able to keep 2jz-gte engines at 500~rwhp using a stock computer and a SAFC, as well as stock 5.3L LSx can keep the OEM ECU (HPtuner is preferable over say, megasquirt) at 800rwhp or better. Since the OEM computer of the 2jz uses a map sensor and comes factory with a turbo, the timing is relatively 'safe' at moderate boost pressures since there is little difference in timing between 12 and 18psi of boost, although methanol injection is highly recommended.

Furthermore, you might not realize this but the sr20det is very similar to the 2jz-gte, both are 86x86mm engines and both use a 8.5:1 compression factory cast aluminum piston, & hemispherical combustion chamber.

No sr20 should be pushed beyond 400rwhp when there are engines available for less cost that will support more power. Unless you have a specific reason to hold on dearly to the sr20- it just doesn't make any sense to use a 2.0L, to "build" a 2.0L of any kind. I am only a fan of stock components when they suit the application. If I want 800rwhp and there were no stock engines to hold that kind of power with reasonable cost, sure build it. But don't build the smallest engine you can find that will work, always build the largest.
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Old 11-07-2016, 11:39 AM   #5
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2jz-gte engines at 500~rwhp using a stock computer and a SAFC
You just solidified my arguement with those 5 words... Yes, it can be done, but at what cost? You think I'm going to throw thousands into a motor setup and tune it with a computer signal manipulator so everything "appears" to play nice together? You're even crazier than I pegged you for.

Not to mention, we aren't discussing what your opinion is in regards to what motor should do what. No body cares what power level you think a motor should live and thrive at. We as a car people/culture like to push boundaries. Playing it "safe" will never open the door for progression.

Seriously though, dude wants to run a standalone EMS on an RB setup, let him spend his money how he sees fit. Quit pounding the LSX and 2j shit down people's throats. Who cares if they make more power with less parts. The fact is, any setup requires monetary deposits to go fast, so spend YOUR money on what you want and keep YOUR motor swap ideas to yourself or build one so you can play with it.

With that said, my vote is Haltech. Built and designed around ALL Nissan factory sensors. No CAS wheel modification and PnP setups for various chassis'.
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Old 11-08-2016, 08:11 AM   #6
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Originally Posted by jr_ss View Post
You just solidified my arguement with those 5 words... Yes, it can be done, but at what cost? You think I'm going to throw thousands into a motor setup and tune it with a computer signal manipulator so everything "appears" to play nice together? You're even crazier than I pegged you for.
whoa buddy. we use safc on 500rwhp junkyard $1200 longblocks. Not built engines. I never suggested doing it- I was only pointing out, yes it can be done, 10+ years of daily 500rwhp for $150 tune on the OEM ecu is possible with a $1200 longblock 2jz-gte that you brought up to begin with. I NEVER mentioned using an OEM computer on ANYTHING. the Power FC is NOT an OEM computer. You are the one who brought OEM computers into this discussion. I am defending them as viable options in a handful of applications where they are tolerated well but never would have mentioned one to begin with.


Quote:
Not to mention, we aren't discussing what your opinion is in regards to what motor should do what. No body cares what power level you think a motor should live and thrive at. We as a car people/culture like to push boundaries. Playing it "safe" will never open the door for progression.
When discussing what computer, you ask what engine. lol @ not discussing engines with computers, that makes me laugh. Ok so I want to stand-alone my lawn mower engine, or ATV, but I will fail to mention that when asking for a recommendation here since engine choice doesn't matter apparently.


Quote:
Seriously though, dude wants to run a standalone EMS on an RB setup, let him spend his money how he sees fit. Quit pounding the LSX and 2j shit down people's throats. Who cares if they make more power with less parts. The fact is, any setup requires monetary deposits to go fast, so spend YOUR money on what you want and keep YOUR motor swap ideas to yourself or build one so you can play with it.
RB26DETT I've tuned to 600rwhp with a $350 power FC. No reason to spend more than that IMO. I can see it doing 1000rwhp without issue.
And here it is:




Quote:
With that said, my vote is Haltech. Built and designed around ALL Nissan factory sensors. No CAS wheel modification and PnP setups for various chassis'.
I think you just like spending money. Its not like haltech is going to offer a significant advantage over a power FC in a majority of applications, besides a ton of aux inputs/outputs it really has no advantage at moderate power levels. I spent 15 years peering into the dark recess of mysterious computers and found that they all do the same thing, a processor flips a digitial/transistor signal on and off to time the injectors/coils.
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Old 11-08-2016, 12:43 PM   #7
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RB26DETT I've tuned to 600rwhp with a $350 power FC. No reason to spend more than that IMO. I can see it doing 1000rwhp without issue.
1000 hp power fc d jetro t88GK 18cm

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