ATTN: Need feedback from tCs with HydraEMS
01-01-2009 | 11:28 AM
#426
nah i had to much too much advance on the lower 1-2 rpms, it pulls right away but since i have the to advance gradually as the rpms go up the car feels sluggish starting at around 2250.. im gonna data log again
05-23-2009 | 05:32 PM
#427
Originally Posted by ippskidder
Yea let me do all the work.
Lazy a s s, jk bro =)
What size turbo do you have?
I understand how to change the timing, and how it works. I just want to do some more research for a few more days. So I can try it out over the weekend.
If my theory is correct. I should have less lag, and better midrange powerband, at the expense of some top end.
Which is ok, because by that time the turbo is screaming ^^
Lazy a s s, jk bro =)
What size turbo do you have?
I understand how to change the timing, and how it works. I just want to do some more research for a few more days. So I can try it out over the weekend.
If my theory is correct. I should have less lag, and better midrange powerband, at the expense of some top end.
Which is ok, because by that time the turbo is screaming ^^
06-20-2009 | 07:14 PM
#430
Thread Starter
Banned
SL Member
Scion Evolution
Joined: Jan 2006
Posts: 3,346
From: Fremont, CA
I am selling my hyda now 
my car is totalled (Luckily the HydraEMS was not installed yet)
https://www.scionlife.com/forums/viewtopic.php?t=263073
my car is totalled (Luckily the HydraEMS was not installed yet)https://www.scionlife.com/forums/viewtopic.php?t=263073
07-01-2015 | 06:32 PM
#434
Senior Member
SL Member
Joined: Jul 2013
Posts: 100
Not really, lol.
I pinpointed a possible problem.
I have PE 800cc injectors, at 14 volts the lag is 1.6 ms
I compared it to others injectors of similar size (800cc), and their lag time is 1ms or less. So basically they open/closer faster than mine.
I got my car to idle, but when I lower the pulse width, it dies if its anything leaner than 12afr.
I wanted to change the injector latency map, so it can be close to what my injectors actually are. But the latency map only goes up to 1.2ms
So that doesn't help.
The only other possibility I see, is to go with low impedance injectors which usually have much lower lag.
I'm probably going to go with RC Engineering 750cc low impedance, denso style injectors. The lag time I think is something like 0.8ms at 14volts. Which is super faster than mine.
So with those I should be able to idle a lot better. So i'm gonna purchase those next paycheck, and then take it to get tuned.
N/A cars turned Turbo cars are a lot of work >.< !!!
I pinpointed a possible problem.
I have PE 800cc injectors, at 14 volts the lag is 1.6 ms
I compared it to others injectors of similar size (800cc), and their lag time is 1ms or less. So basically they open/closer faster than mine.
I got my car to idle, but when I lower the pulse width, it dies if its anything leaner than 12afr.
I wanted to change the injector latency map, so it can be close to what my injectors actually are. But the latency map only goes up to 1.2ms
So that doesn't help.
The only other possibility I see, is to go with low impedance injectors which usually have much lower lag.
I'm probably going to go with RC Engineering 750cc low impedance, denso style injectors. The lag time I think is something like 0.8ms at 14volts. Which is super faster than mine.
So with those I should be able to idle a lot better. So i'm gonna purchase those next paycheck, and then take it to get tuned.
N/A cars turned Turbo cars are a lot of work >.< !!!
Flow CC/min 750
Flow LB/Hr 71
Ohm 12
10v 1.36
11v 1.12
12v 0.92
13v 0.76
14v 0.63
15v 0.50
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