Greddy Emanage ultimate basics for noobs - Page 2 - Lexus IS Forum
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post #16 of 57 (permalink) Old 01-08-2014, 02:59 PM
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Originally Posted by stoner22 View Post
I wish I was more inclined With the aem units and the greedy unit...
Maybe if you weren't a stoner you would be more motivated.

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post #17 of 57 (permalink) Old 01-08-2014, 06:39 PM
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Originally Posted by autocross View Post
I am a noob to any sort of ECU tuning. Do you lose any OEM functions using the E-manage? I've looked around an seen on Dezods page about how the AEM EMS standalone allows you to keep power windows, locks, moonroof, etc. I don't understand why any of those essential function would be related to engine management. I'm curious how the E-manage effects the IS300, aside from tuning.
You're correct. It has to do only with the engine and nothing else.

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post #18 of 57 (permalink) Old 02-17-2014, 05:16 PM
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Nice thread. I have been running EMU for over a year now and promised a how to thread.... Sorry got busy. I would like to add you can use the SUB injector for boost control. It took me awhile but I finally got it to work.
have to make sure you select ch-1 and sub injector in the car settings.
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post #19 of 57 (permalink) Old 02-17-2014, 08:12 PM
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There is also a really good Subi write-up on boost control. Its pretty cool it works, as proper solenoid control calls for a fixed frequency, modulation via PWM- this is why using this method is audibly noisier than EMS and EBC controls with calibrated frequency settings. Can't beat free though haha.

Another cool feature of the EMU I hadn't thought of but read about later was using Inj map 1 and Inj map 2 at the same time via dip switch and front panel selection, then scale the maps so 1 tunes for vacuum and moderate boost, the other from there to high boost, for example full vacuum to 4psi, and 5psi to 20psi, giving you much more granularity in the tune. At the current granularity level of using just one map for a high boost setup (or low boost but you do not scale the map), you can find yourself in the same load cell in partial throttle and WOT (but same RPM and boost level thus the same load cell), and so the partial throttle can have a good air fuel, but at WOT it is leaner. At moderate boost you can scale the map to give you more granularity. I can't really explain what at the same RPM and boost the flow is different, but with variables like VVTi, having a MAF clamp, piggbacking a speed density method to a mass air flow method etc, it shouldn't be surprising.

At moderate boost you can use the above method and have overkill granularity haha.

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post #20 of 57 (permalink) Old 02-17-2014, 09:40 PM
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Quote:
Originally Posted by autocross View Post
Maybe if you weren't a stoner you would be more motivated.
lmfaooo

This is pretty good stuff, how much does this unit go for?

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Originally Posted by RUCKER52 View Post
Although I saw the automatic gearbox, you should definitely be putting those paddle shifters to use. As long as you're strictly driving around and shifting with the paddle shifters you can tell everyone it's a manual, it'll increase the value of the car too.
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post #21 of 57 (permalink) Old 02-17-2014, 09:52 PM
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You can pick up the EMU for pretty cheap nowadays. I got mine with pnp for 400. Most IS users don't want to deal with it. I think the biggest negitive with the EMU is that you cant tune to load. That is where the EMU and stock ECU really butt heads. The stock ECU in closed loop is using load calculations with other things like o2 ect... So with the EMU using RPM and PSI on the I/J map sometimes at the same RPM and PSI you can be a different load levels and it throws the trims off a bit. The ECU is smart enough to figure it out but it can be annoying if you are a perfectionist.

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post #22 of 57 (permalink) Old 02-17-2014, 10:39 PM
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What if you tried using both inj maps to increase your scaling on both RPM AND PSI? Like inj 1 would do the vacuum up to low boost for idle to 3600 RPM (using all 16 RPM interval cells) while inj 2 does the rest from 3600 to redline? I might have to test it.
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post #23 of 57 (permalink) Old 02-20-2014, 06:42 AM
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What kind of gains are available going from a stock ECU NA engine with cams, intake, headers to the eManage. It sounds like a good safe way to get into tuning but I'm curious what kind of power is available and whether it's worth it.

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post #24 of 57 (permalink) Old 02-20-2014, 07:43 PM
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Car runs pretty rich WOT from the factory. You could lean it out some and maybe gain some power. Two step and NLTS, increase the rev limit....

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post #25 of 57 (permalink) Old 02-21-2014, 06:18 AM
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Originally Posted by selmerguy View Post
Car runs pretty rich WOT from the factory. You could lean it out some and maybe gain some power. Two step and NLTS, increase the rev limit....
What is two step and NLTS?

It seems like it's not worth it if there is not substantial power available.

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post #26 of 57 (permalink) Old 02-21-2014, 04:19 PM
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In all honesty not to many NA mods gain substantial power on this platform. Lots opwople have thrown 10's of thousands of dollars to stay na and still be under 300whp.

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post #27 of 57 (permalink) Old 03-03-2014, 06:01 PM
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Wanted to add this to the EMU thread. Not only do you get boost control but you can use a relay to setup a dual stage boost control setup with the power or trac off button. Its pretty simple. No need for diodes but it doesn't hurt if you use them. Here is the thread in another section.
Relay for boost controller

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post #28 of 57 (permalink) Old 03-03-2014, 06:09 PM
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Just picked up the emu and boomslang PNP harness from a local, but I Didn't realize it came off of an 01 is300 and my car is an 02 :/ so correct me if I'm wrong but the boomslang PNP will not work with an 02 if it was originally purchased for an 01 right?

02 E-Shift GTE INTERNALS l BC264 l PTE6262 l AEM V2 l FIGS RB BBK l FORTUNE AUTO
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post #29 of 57 (permalink) Old 03-03-2014, 06:35 PM
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I think the plugs are the same shape but the pining is different. Shouldnt be too hard to cut and splice the boomslang and make it work. That will keep your stock wiring intact.

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post #30 of 57 (permalink) Old 03-03-2014, 06:54 PM
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Quote:
Originally Posted by selmerguy View Post
I think the plugs are the same shape but the pining is different. Shouldnt be too hard to cut and splice the boomslang and make it work. That will keep your stock wiring intact.

Thanks for the insight, yeah I'd rather not pay the extra money for a new one if I can modify this one to work

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  Lexus IS Forum > 1st-Gen IS300 > Go Fast Stuff

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