New Tune On Vortech
the ECU doesn't, the timing and fuel maps are changed in the ECU instead of being offset by a piggyback which is what normally reads boost
the supercharger has consistent boost though at any given rpm which makes it IMO a little simpler to deal with than a turbo which can vary in boost and rpm depending on what rpm you give it throttle
the supercharger has consistent boost though at any given rpm which makes it IMO a little simpler to deal with than a turbo which can vary in boost and rpm depending on what rpm you give it throttle
I asked them about that. They said it's only a problem with turbos that get full boost at lower rpms. In the upper rpm it's not a problem. SC will have max boost at max rpm. Very predictable.
They must have made some progress . AAM couldnt get the flash right at 7 or 8 psi a while back . They would end up being lean up top . Probably the bigger injectors helped . How come they wouldnt give you a dyno read out ? I would be leary of boosting it with out some idea what the A/F looks like
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From: NJ
Originally Posted by THE TECH
I wouldn't use the stock ECU primarily for any FI application.
Aren’t there any OEM FI cars on the market that are already controlled by the same stock ECU that is also used for NA version?
The way I see it, without additional hardware and associated sale and installation cost there are here few less items that can go bad while at the same time utilizing existing OEM items instead of bypassing them.
zzerotwosixty dont worry about it, if anyone can do it right it is uprev, I was talking to jared why he was tuning your car. They have mine right now, waiting on the engine to get built and upgrading from the TN ST to a Greddy TT, will let them tune it,looking for atleast 600-650 with their tune on my STOCK ECU. No worries, they know more about the ecu than probably anyone else on here.
Last edited by josh846; Jul 2, 2007 at 05:58 PM.
Originally Posted by dovla
THE TECH, please explain why. Thanks
Aren’t there any OEM FI cars on the market that are already controlled by the same stock ECU that is also used for NA version?
The way I see it, without additional hardware and associated sale and installation cost there are here few less items that can go bad while at the same time utilizing existing OEM items instead of bypassing them.
Aren’t there any OEM FI cars on the market that are already controlled by the same stock ECU that is also used for NA version?
The way I see it, without additional hardware and associated sale and installation cost there are here few less items that can go bad while at the same time utilizing existing OEM items instead of bypassing them.
it even goes as far as even cars in the same line up have different ECU's..
MKIV N/A Supra - 2JZ-GE
MKIV TT Supra - 2JZ-GTE
1st Gen IS300 - 2JZ-GE
all different ECU's..
5.5 Gen Maxima - VQ35
6th Gen Maxima - VQ35
3rd Gen Altima - VQ35
350z - VQ35
all different ECU's
Originally Posted by josh846
a Greddy TT, will let them tune it,looking for atleast 600-650 with their tune on my STOCK ECU. No worries, they .
Originally Posted by josh846
zzerotwosixty dont worry about it, if anyone can do it right it is uprev, I was talking to jared why he was tuning your car. They have mine right now, waiting on the engine to get built and upgrading from the TN ST to a Greddy TT, will let them tune it,looking for atleast 600-650 with their tune on my STOCK ECU. No worries, they know more about the ecu than probably anyone else on here.
Originally Posted by doug
wow.. i am absolutely speachless.. maybe the first time ever on this board.. I hope they have a great warranty program
The OEM ECU has ZERO parameters for any type of FI. It cannot compensate for boost whatsoever. Anyone who runs FI with the stock ECU alone is sitting on a time bomb. There's a reason people use either piggybacks or standalone setups. And for the record, the stock ECU is not a standalone setup for aftermarket parts.
Originally Posted by zzerotwosixty
The silver one , eh? They told me you're getting a built motor. That's a big project. GL. Would you guys trust the ECU if it said Motec, or Greddy or whatever? What can they do that the factory ECU can't.
From what I understand the factory ecu can atleast compensate for 5.5 psi of boost, I will be running around 18. I think that they can compensate and control any parameters, just like a piggyback or standalone can. i did have the F-con and the UTEC at one time, but got rid of them
Originally Posted by josh846
From what I understand the factory ecu can atleast compensate for 5.5 psi of boost, I will be running around 18. I think that they can compensate and control any parameters, just like a piggyback or standalone can. i did have the F-con and the UTEC at one time, but got rid of them
you do realize that you can blow your motor with a Greddy Kit and 5.5 PSI of boost right? because the ECU gets wacky with the Timing and BOOOOOOOOOOOM
Originally Posted by THE TECH
The OEM ECU has ZERO parameters for any type of FI. It cannot compensate for boost whatsoever. Anyone who runs FI with the stock ECU alone is sitting on a time bomb. There's a reason people use either piggybacks or standalone setups. And for the record, the stock ECU is not a standalone setup for aftermarket parts.