Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Yippee 590's are in

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Old Jan 30, 2005 | 08:16 AM
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Yippee 590's are in

As some of you may know I ordered the 590's from SuperDave, Well I finally got a chance to put them in. After the install, I tried to start the car, but to no avail the car wouldn't start!!! Which sucked! so I called my good ole friend Mardigras who told me that it was because the cold start feature in the ecu was dumping too much fuel in the car. So I wired up a push button start and the car Idles fine. I have not had a chance to drive the car yet because it's snowing right now but. I have revd it out to 5 grand and so far so good.

This combuination is 590+z32 maf+emanage+cali spec 99


Thanx Dave!
Old Jan 30, 2005 | 08:21 AM
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good job corey!

now i hope i have everything back together for your trip out here!
Old Jan 30, 2005 | 10:04 AM
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I'm curious how a pushbutton start aids in cold starting? I am especially curious because my car has it as well, I just assumed it was done for fun, not for a functional purpose. Looks like I was wrong.
Old Jan 30, 2005 | 12:13 PM
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When you turn the key to start, it triggers the cold start feature in the ECU, when you use the push button start, you bypass that.
Old Jan 30, 2005 | 02:21 PM
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Good stuff Corey!

Dave has got many guys running his injectors now(and some with his ROM tune) with no issues.
Old Jan 30, 2005 | 04:36 PM
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Just a quick question, Which push button start are you using?
Old Jan 31, 2005 | 07:37 AM
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Well you learn something new everyday. What's strange about my pushbotton start, is that sometimes out of habit I will just turn the key to start the car, and sometimes it will turn over. But then other times, turning the key will do absolutely nothing. I know that sounds crazy but I swear it's true, sometimes the car will start with the key, and sometimes it won't even crank, but it always starts with the button of course.
Old Jan 31, 2005 | 10:18 AM
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Originally Posted by Nealoc187
Well you learn something new everyday. What's strange about my pushbotton start, is that sometimes out of habit I will just turn the key to start the car, and sometimes it will turn over. But then other times, turning the key will do absolutely nothing. I know that sounds crazy but I swear it's true, sometimes the car will start with the key, and sometimes it won't even crank, but it always starts with the button of course.


Sounds like a bad wire tap or connection.
Old Jan 31, 2005 | 10:42 AM
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Good deal Corey, I was begining to wonder what happened to you - I'm glad everything worked out. Now you can make the BIG power!! I think Blubyu2k2 is picking up a set as well. I have also sold several sets to other members for their SR's.

btw - I'm not sure if it was changed in the original stickey, but can now make sets of 480cc, 550cc, 600cc, and 660cc if anyone is interested.
Old Jan 31, 2005 | 03:19 PM
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Yes hopefully I can get away from work long enough to send my stockers off tomorrow.
Old Jan 31, 2005 | 03:58 PM
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Originally Posted by superdave2
Good deal Corey, I was begining to wonder what happened to you - I'm glad everything worked out. Now you can make the BIG power!! I think Blubyu2k2 is picking up a set as well. I have also sold several sets to other members for their SR's.

btw - I'm not sure if it was changed in the original stickey, but can now make sets of 480cc, 550cc, 600cc, and 660cc if anyone is interested.
Are there price differences between the sizes?
Old Jan 31, 2005 | 11:07 PM
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Nope, all the same price.
Old Feb 1, 2005 | 11:15 PM
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about time you got them working... now lets figure out how to get my damn car on a trailer so i can get the tranny fixed. did you pay the $700 in tickets that you got a couple of weeks back?
Old Feb 3, 2005 | 11:30 AM
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I'd like to state that the push button starter doesn't defeat the "cold start" enrichment from the ECU. At least from what I can tell, it wouldn't make a difference.

However, what it does do is prevent the ignition ON signal to the ECU as you're turning the key from the ON to START, which causes the ECU to prime the fuel pump for a steady fuel pressure. So, when you normally put the key in and turn, the fuel pump is activated which increases fuel pressure in the line, so when you actually start the car it has 34psi of fuel pushing behind the injectors. Now, with the push button starter, you'll be starting with less then 34psi, since the fuel pump won't have time to prime the lines and less fuel being dumped causing cold start problems.

Not a big deal or anything, but that's what I think happens according to the FSM.

Sounds like a good method to help cold starts.
Old Feb 3, 2005 | 05:14 PM
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Ice does the fuel pump run to prime the engine when the key is just in the On position or when you start turning past the On position to the Start position? Because on my car, the key must be in the 'on' position, and then I press the push-button starter.
Old Feb 4, 2005 | 12:00 AM
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no it primes when click over to acc and your cluster lights come on
Old Feb 4, 2005 | 06:42 AM
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It defeats the cold start fuel dump.
Old Feb 4, 2005 | 08:19 AM
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Well there goes that theory, yeah it turns on for 1sec. when in the ON position.

Originally Posted by Nealoc187
Ice does the fuel pump run to prime the engine when the key is just in the On position or when you start turning past the On position to the Start position? Because on my car, the key must be in the 'on' position, and then I press the push-button starter.
Old Feb 4, 2005 | 08:21 AM
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Any idea how/why?

Originally Posted by MardiGrasMax
It defeats the cold start fuel dump.
Old Feb 4, 2005 | 09:34 AM
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Originally Posted by superdave2
Good deal Corey, I was begining to wonder what happened to you - I'm glad everything worked out. Now you can make the BIG power!!
definently...we took the car out yeasterday and made some runs with matt... IDCs were @ 44% at WOT and the Z MAF only hit ~3.7v at WOT... part throtlle AFR was clean between 14.6-15 or so, WOT AFR was from 10.8-11.x or so. this was at 8-10lbs AWESOME!!!! needs some tuning, but has plenty room to play with! car pulled nice and clean. its baaaaaaaaack!!!
Old Feb 4, 2005 | 10:56 AM
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that's good to hear, You'll should of took some vids, i haven't seen any new vids for a long time of Turbo maximas
Old Feb 4, 2005 | 04:33 PM
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More than Likely I will be testing the strength of our rods now. I have a hardened crank and my compression is about 8.75:1 so I can turn up the boost with not many worries now. The most of my worries right now will be how much horsepower the rods can hold
Old Feb 5, 2005 | 06:32 AM
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Originally Posted by IceY2K1
Any idea how/why?
The start signal when cold triggers the ECU to do a fuel dump, just like on a carb car you have to pump it before you crank it. This dump is calculated for stock injectors so with larger injectors its excessive, it can not be counteracted with an AFC. Putting the switch in run and cranking the starter with out the ECU bypases this issue becuase the ECU has no idea you are starting, it just thinks run. JWT figured this trick out when the 555cc first came out. Now the JWTs have this adjusted in the ECU's
Old Feb 5, 2005 | 10:15 AM
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Originally Posted by Redmax
More than Likely I will be testing the strength of our rods now. I have a hardened crank and my compression is about 8.75:1 so I can turn up the boost with not many worries now. The most of my worries right now will be how much horsepower the rods can hold
What method of lowering compression did you use?
Old Feb 5, 2005 | 06:36 PM
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det pistons and larger head gasket
Old Feb 8, 2005 | 07:27 AM
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just for the **** of it, heres a little BS vid of the idle I took after re-installing his ignition harness yeasterday...590s + Emanage + Z32 MAF = clean idle good ****!!

only 15 seconds long, but 4mb...so sue me

http://www.auto-upgrade.com/vid/590_idle.MOV (right click, save as)
Old Feb 8, 2005 | 07:39 AM
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that looks likea wiring nightmare! I wouldnt want to have to hide those wires.

so basically the vid is to show that it works? gooooooooood.

what settings did you enter for original value on the emanage?

was that a push button start or did you turn key?
Old Feb 8, 2005 | 07:53 AM
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Originally Posted by slimer
that looks likea wiring nightmare! I wouldnt want to have to hide those wires.

so basically the vid is to show that it works? gooooooooood.

what settings did you enter for original value on the emanage?

was that a push button start or did you turn key?
Corey will hide all of the wires...one thing I CAN'T do is make **** look pretty, I'm too lazy, I leave that to other people..as long as it runs, my job is done

yeah, it was just to show the idle and show that Emanage is definently a well put together system and well enough sufficient for most ANYONE on here in need of decent management. anything that can handle an increase from 270cc to 590cc with very little tweaking gets a from me! also props to superdaves sweet *** injectors!!(I might have another person with a SR interested in a set of 590s) and we ran the car, but I forgot the camera same results as my other post, stable AFR and all.

settings are set for the Z32 MAF(7-0-1?) and injectors are set to 370/590

it was a push button start, but in the vid it was already running
Old Feb 8, 2005 | 08:45 AM
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That video is great! Mind if I use it? I get a lot of people that are worried about idle quality. I tell them it is up to the tuning and that if tuned properly they idle perfectly but I don't think they always believe me.

Did you adjust the lag time on the injectors? I have not had them measured yet, but ~0.7 seems to work well on the e-manage.
Old Feb 8, 2005 | 08:53 AM
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Originally Posted by superdave2
That video is great! Mind if I use it? I get a lot of people that are worried about idle quality. I tell them it is up to the tuning and that if tuned properly they idle perfectly but I don't think they always believe me.

Did you adjust the lag time on the injectors? I have not had them measured yet, but ~0.7 seems to work well on the e-manage.
go right ahead and use it

and no, other than setitng the injector settings for 370/590 in the parameter menu...there were no other changes made, it idled them fine right out of the box!
Old Feb 8, 2005 | 09:11 AM
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34psi fuel pressure?
Old Feb 8, 2005 | 09:28 AM
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Originally Posted by IceY2K1
34psi fuel pressure?
yup, I'm pretty sure last I checked
Old Feb 8, 2005 | 10:52 AM
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Man nice little vid, love the thumb at the end.
Old Feb 9, 2005 | 09:59 AM
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Originally Posted by DA-MAX
yup, I'm pretty sure last I checked
Ahh, that is probably why you didn't need to adjust the lag time. Decreasing fuel pressure decreases the lag time so that probably brought the 590's right back to stock lag time.

I've not had to adjust lag even with normal fuel pressure but I know some of my customers have.
Old Feb 9, 2005 | 10:45 AM
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34psi is stock fuel pressure at idle.

What is lag time?

Originally Posted by superdave2
Ahh, that is probably why you didn't need to adjust the lag time. Decreasing fuel pressure decreases the lag time so that probably brought the 590's right back to stock lag time.

I've not had to adjust lag even with normal fuel pressure but I know some of my customers have.
Old Feb 9, 2005 | 09:36 PM
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another VERY short videofrom this afternoon...this is 13.5lbs UNTUNED(only Emanage injector correction factor) with no timing retard...car maintained a high 10 to low 11 AFR and pulled clean.....until the charge pipe blew off

http://www.auto-upgrade.com/vid/13lbs_590s.MOV (right click, save as)

Old Feb 9, 2005 | 09:47 PM
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i remember that laugh. do yall have t bolt clamps so it wont blow off again?

addae, why arent you coming up for the auto show?
Old Feb 9, 2005 | 09:55 PM
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Originally Posted by slimer
i remember that laugh. do yall have t bolt clamps so it wont blow off again?

addae, why arent you coming up for the auto show?
my laugh is my trademark yeah he's gonna get some today or tommorow, for now its HD hose clamps.

I'd love to come to Chicago for the show, but when I opened my wallet today tumbleweeds flew out..aka I'm broke
Old Feb 9, 2005 | 09:59 PM
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i feel that.

are you going to get to "babysit" while corey is gone?
Old Feb 10, 2005 | 04:07 PM
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Originally Posted by slimer
are you going to get to "babysit" while corey is gone?
yeah right...me...with that car...for the whole weekend.....

I can picture the phone call now.... "um Corey, good news I hit 20lbs, bad news....um...your rods are sitting in the passenger seat"

just playing, naw, I don't dog anyones car unless asked to



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