JDM 2JZ-GTE A/F at boost levels greater than 14psi
03-07-11, 10:44 AM
#16
I just got some 550s, and I may eventually put them in to see how much the stock ecu can adapt to them. I have heard that in closed loop it can deal with 550s pretty well, but WOT is really rich. That may not be a prob if you crank the boost though.
03-07-11, 10:54 AM
#17
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^ ya thats why standalone or go home, can't see improving one part of the car and confusing/ possible ruining another part.
But as the post states this is just with the JDM ECU nothing else to see what guys are pushing out of the stock fuel system with of course upgrades such as pump,AFPR.
Anyone tried running the 550's without and safc just the ecu. If you turn down the fuel pressure a little it might work and run a little rich
Theres got to be more people on the stock setup so post up your numbers anyone else on a single turbo like myself?
But as the post states this is just with the JDM ECU nothing else to see what guys are pushing out of the stock fuel system with of course upgrades such as pump,AFPR.
Anyone tried running the 550's without and safc just the ecu. If you turn down the fuel pressure a little it might work and run a little rich
Theres got to be more people on the stock setup so post up your numbers anyone else on a single turbo like myself?
03-07-11, 12:13 PM
#19
^ Eh Im not the best picture taker but here it is, the rail mount i used a flange from a crappy fuel regulator kit, the one I ordered for Supra did not fit, my car use to have a returnless system so I have the stock return line for gte plugged I'm returning the fuel out of the Aeremotive Regulator because it wouldn't build pressure the other way.
I'm going to bump the fuel up to 45base tomarrow and see what I can run and re-post. My goal for summer would just be 18lbs, 14 is very fun as is
I'm going to bump the fuel up to 45base tomarrow and see what I can run and re-post. My goal for summer would just be 18lbs, 14 is very fun as is
03-07-11, 02:04 PM
#21
^ Eh Im not the best picture taker but here it is, the rail mount i used a flange from a crappy fuel regulator kit, the one I ordered for Supra did not fit, my car use to have a returnless system so I have the stock return line for gte plugged I'm returning the fuel out of the Aeremotive Regulator because it wouldn't build pressure the other way.
I'm going to bump the fuel up to 45base tomarrow and see what I can run and re-post. My goal for summer would just be 18lbs, 14 is very fun as is
I'm going to bump the fuel up to 45base tomarrow and see what I can run and re-post. My goal for summer would just be 18lbs, 14 is very fun as is
03-07-11, 06:07 PM
#22
stockhatch It's probably hard to tell while driving, but what kind of afrs do you see at part throttle, lower boost? Like building through 3-5psi? Or does it pretty much go rich right when it crosses 0 and goes positive pressure?
lexusdog
Did you do anything with the stock fuel dampner? So you just have the adaptor where the stock FPR was and that runs into the AFPR and then back to the factory return line?
Did you do anything with the stock fuel dampner? So you just have the adaptor where the stock FPR was and that runs into the AFPR and then back to the factory return line?
03-07-11, 09:11 PM
#23
^
The problem with the vpc is that it will not work on a jdm ecu. Reason being is that it needs the maf signal to calculate even though it uses a map sensor in it's harness and eliminates the maf sensor. The jdm ecu and harness does not use a maf, nor does it have the wiring for it.
I would have purchased your vpc if it would have worked with my jdm setup but no such luck. It someone is using a usdm ecu setup the vpc will work fine.
The problem with the vpc is that it will not work on a jdm ecu. Reason being is that it needs the maf signal to calculate even though it uses a map sensor in it's harness and eliminates the maf sensor. The jdm ecu and harness does not use a maf, nor does it have the wiring for it.
I would have purchased your vpc if it would have worked with my jdm setup but no such luck. It someone is using a usdm ecu setup the vpc will work fine.
03-07-11, 09:58 PM
#24
lfrers
Old setup
USDM 2jzge
full 3 inch exhaust no cat
Headgasket
67mm turbo
40mm WG
Synapse BOV
stock cams
440cc RC injectors
AEM wideband
single Meth nozzle (what GE mani is good for)
Toyomoto ECU
AFC
VPC
This setup made 437 WHP on about 20 lbs 12 A/F
with poor piping!
The VPC & AFC were a popular piggy back combo and as you can see they work.
VPC worked well with MAP sensor but I wanted the meth control by EMS and better tuneability/safty.
New Setup
USDM 2jzge
full 3 inch exhaust no cat
Headgasket
67mm turbo
40mm WG
Synapse BOV
stock cams
720cc RC injectors
single Meth nozzle (what GE mani is good for)
AEM wideband
AEM EMS v2
500WHP again 20 lbs 12 A/F
even with a severly restricted 2" turbo inlet. haha
Fixing that now. Should be much better after redoing some piping.
PLUG (Complete VPC for sale in for sale section, Toyomoto ECU
going up for sale soon)
Old setup
USDM 2jzge
full 3 inch exhaust no cat
Headgasket
67mm turbo
40mm WG
Synapse BOV
stock cams
440cc RC injectors
AEM wideband
single Meth nozzle (what GE mani is good for)
Toyomoto ECU
AFC
VPC
This setup made 437 WHP on about 20 lbs 12 A/F
with poor piping!
The VPC & AFC were a popular piggy back combo and as you can see they work.
VPC worked well with MAP sensor but I wanted the meth control by EMS and better tuneability/safty.
New Setup
USDM 2jzge
full 3 inch exhaust no cat
Headgasket
67mm turbo
40mm WG
Synapse BOV
stock cams
720cc RC injectors
single Meth nozzle (what GE mani is good for)
AEM wideband
AEM EMS v2
500WHP again 20 lbs 12 A/F
even with a severly restricted 2" turbo inlet. haha
Fixing that now. Should be much better after redoing some piping.
PLUG (Complete VPC for sale in for sale section, Toyomoto ECU
going up for sale soon)
03-08-11, 06:17 AM
#25
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Arussto (06-21-22)
03-08-11, 08:27 AM
#27
^StockHatch is rite I know of 3 MKiv's around here making huge numbers with SAFC/VPC combo he said the biggest thing for power is the heads you port the heads add cams.
Also with a quality single Turbo pushing more airflow at all times, and if your head was very free flowing I bet you could get away with 550's on stock ecu. But we wont know untill someone tries..
Also with a quality single Turbo pushing more airflow at all times, and if your head was very free flowing I bet you could get away with 550's on stock ecu. But we wont know untill someone tries..
03-08-11, 02:30 PM
#28
Dude maybe you should cool it with the smart smart aleck remarks. You've been on here since 03, act like this is the first time MAF has been used in 8 years, and don't know what mods you have and then tell other people to search for every retarded thing 
03-08-11, 02:56 PM
#29
lfrers Oh and sorry to make this afc & vpc vs ems. I just realised your thread title said JDM! I got retard strength bro I'll delete all this later. Sorry
account2x
Dude maybe you should cool it with the smart smart aleck remarks. You've been on here since 03, act like this is the first time MAF has been used in 8 years, and don't know what mods you have and then tell other people to search for every retarded thing
Dude maybe you should cool it with the smart smart aleck remarks. You've been on here since 03, act like this is the first time MAF has been used in 8 years, and don't know what mods you have and then tell other people to search for every retarded thing
* I did do a test run at 45psi base fuel boost was at 15 WOT A/F at 10.2 with the CEL and it hauled cruising A/F's were 14.8-15.8 getting into boost low 5psi it was around 13A/F and dropping. The snail I'm running is kinda big so the boost kinda kicks in instantly roasting 2nd and breaking loose in 3rd