:icon_bigg :icon_bigg :icon_bigg that is true guys !! I have an 87 Supra n/a body with a 7mgte engine but I am using the non-turbo ecu with the distributor settup from the 7mge !! Dyno proven !! Same horsepower and no boost cut !!For better spark you can upgrade your coil to an MSD or your choice of another brand. But with this settup and a bone stock engine and sensors I can run 18psi and have no boost cut!!! Have fun dude !!:icon_bigg :icon_bigg :icon_bigg
No Boost Cut !!!!!!
- Thread starter raymi
- Start date
raymi said:
Would you happen to have any wideband logging of your runs?
The thing that concerns me is that the AFM on an NA is basically a potentiometer connected to a flap. Once that flap is 100% open, there's absolutely no way for the ECU to know what air flow is like. Theoretically, the only thing the ECU can know in this situation is fuel flow for 100% throttle at zero atmospheres. At 18 psi you are well over 1+ atmospheres and I'd be interested to see if just the rising rate regulator can keep up with that.
There's lots of NA->T done, so I'm not suprised it's working for you - however I'd like to see what your A/F ratios look like.
By the way - I'm moving this to technical discussions until we've fully proven out all the "gotchas" witht this setup - after we've covered it all I'll move it back to tech tips.
Sure, no problem ! I think its running the turbo afm, I will try to get you more info as I get it ! Meanwhile, Im having fun driving it with no problems what so ever !! :icon_biggSupracentral said:
raymi said:
I doubt it.
The turbo AFM is a Karmann-Vortex setup - it outputs a signal in kHZ.
The NA AFM is a "flapper style" AFM - it ouputs a variable voltage signal.
The NA ECU isn't capable of interperting the signal from the turbo AFM.
Unless you are running some very wild conversion hardware (and if you are we need to talk business) it couldn't work that way.
Look forward to finding out what the setup is.
Your right ! Im using the N/A AFM ! I was told that the only difference of the 2 is that the N/A AFM reads a little slower than the Turbo AFM....but with the N/A AFM you can add boost or gas and it will take it in with no problems! Just take it to the Dyno and even out the mixture manually.(if running more than 14psi)! We have a buddy of ours here in P.R. (Fito Racing) he has made alot of 400HP+ Supras using the N/A ECU !! He personally used it on his and made 508HP and clocked a 11.4 in the 1/4. Now he has installed a 1jz bone stock with a dry NOS system,3" intercooler piping,large throttle body,massive intercooler and a Microtech system and now he is the fastest daily driver Supra running 9.4 in the 1/4....I do have pics of his engine!:icon_biggSupracentral said:
Here it is ! 9.4 second 1987Street Supra from Puerto Rico !! I will post the rest in the gallery section...:icon_biggboost fiend said:
Attachments
Last edited:
I new that crap would work.
All these guys on here saying it would not work. Jeesh
all you do is swap the ECU and AFM over. Upgrade to a MSD distributor and bigger wires for a heavier spark!
Though I will not have a use for that set up after I get my FCON/VPC set up running.
I will love to see pics of that cars set up!:love:
-Jonathan
All these guys on here saying it would not work. Jeesh
all you do is swap the ECU and AFM over. Upgrade to a MSD distributor and bigger wires for a heavier spark!
Though I will not have a use for that set up after I get my FCON/VPC set up running.
I will love to see pics of that cars set up!:love:
-Jonathan
My engine bay is not at its best right now but I will try to post pics as soon as I can !!siman said:I new that crap would work.
All these guys on here saying it would not work. Jeesh
all you do is swap the ECU and AFM over. Upgrade to a MSD distributor and bigger wires for a heavier spark!
Though I will not have a use for that set up after I get my FCON/VPC set up running.
I will love to see pics of that cars set up!:love:
-Jonathan
That GE airflow meter is called the vane air flow meter.
You could change the AFM to the MR2 turbo VPC setup. It uses the same meter. If you can find one on ebay.
You could change the AFM to the MR2 turbo VPC setup. It uses the same meter. If you can find one on ebay.
Just buy a VPC head unit with whatever chip for whatever motor/car and then order the chip for the MR2 from HKS.
I just did, bought a VPC head unit with a VG30DETT chip in it, then called up HKS USA through Options auto salon and ordered all the chips and connection wires for the 7mgte. It is not "cheap"...but it will certainly make a HUGE difference!
-Jonathan
I just did, bought a VPC head unit with a VG30DETT chip in it, then called up HKS USA through Options auto salon and ordered all the chips and connection wires for the 7mgte. It is not "cheap"...but it will certainly make a HUGE difference!
-Jonathan
how much of a difference? how much money are we talking about? I just want to know how much is the "difference" going to cost and if its worth it....siman said:Just buy a VPC head unit with whatever chip for whatever motor/car and then order the chip for the MR2 from HKS.
I just did, bought a VPC head unit with a VG30DETT chip in it, then called up HKS USA through Options auto salon and ordered all the chips and connection wires for the 7mgte. It is not "cheap"...but it will certainly make a HUGE difference!
-Jonathan
Get cam gears, SAFC II and a VPC and you should be ok with the timing issue.
Or just run race gas all the time:aigo: $$$$$$$
My VPC set up so far:
VPC head unit: $180
VPC sensor/harness/chip: $208 shipped from options auto salon
VPC FCON harness: $100
---------------------------
= $488, plus some wiring LOL
then if you add the FCON (with everything) $280
SAFC II : $260
Boost controller: $300
---------------------
= $840
-----------
grand total so far: $1328
Still cheaper than a stand alone. :icon_surp
Or just run race gas all the time:aigo: $$$$$$$
My VPC set up so far:
VPC head unit: $180
VPC sensor/harness/chip: $208 shipped from options auto salon
VPC FCON harness: $100
---------------------------
= $488, plus some wiring LOL
then if you add the FCON (with everything) $280
SAFC II : $260
Boost controller: $300
---------------------
= $840
-----------
grand total so far: $1328
Still cheaper than a stand alone. :icon_surp
IJ. said:
I guess you have to retard it in total rather than in rpm increments?
Good thought IJ.
But you could get an Apexi ITC ( ignition timing controller ) off ebay and use it to tune each 1000 rpm or so...whatever. X-man is running that. Its a pretty rare device, but not unobtainable.
MSD has an ignition timing device as well correct?:icon_conf
-Jonathan
But this all turns into an alphabet soup of piggybacks and bandaids that may or may not work well together and once you start getting up above 400rwhp even the slightest hiccup will kill a motor.
Obviously it doesnt. But the knock sensor tells when it should. The only thing wrong is having one isntead of two. The two are for extra sensitivity, as Toyota over does just about everything.IJ. said:
You shouldnt go too high on power anyway. You want 400rwhp, get a Supra Turbo. A good tune, and always using quality gas will do it. The ignition circuit is closed loop. HKS also sold an ignition control with their 7MGE turbo kit that ran a good sized T04B. It allowed you to run the turbo coils to prevent an electrical misfire. More ebay stuff if you can find it.
Remember guys, this is racing! You need to take some chances some times in able to have a fast car! You cant expect to due everything everyone else does!! Try to be original some time in your life! If its a racing car than RACE it and be prepared to take chances! If you dont want to try something just because it may or not fail then YOU should stick to CAR SHOWS!! Here in P.R. we have several street Supras with this set up and NO ONE has had any problems or engine break downs so far!!! I would not have this same set up if it did not work believe me!! As per all those piggy backs you talk about, just sum all the prices up and installation time and see that it is better to take that money and a Electromotive ecu and bingo! You eliminate all hassles!!!jeje:naughty:Nick M said: