I'm running 91 usdm turbo on Megasquirt. I finally put the pedal to the floor the other day, so I figured it is time to post up here. The motor is unopened with a td06, a2w, dual fuel rails, and ms-extra code 029y4 with edis ignition. All of the stock wiring is intact, thanks to an mr2 specific breakout board. I've been getting 28mpg on a rough tune, but after pulling some more fuel out I have 150 miles on this tank with about 3/5 left in the tank.
Anyways, when I am closer to completion I will be posting more details, like wiring diagrams and pics.
Running a power FC
Custom Je pistons(20 over and custom 8.5:1 CR)
OEM metal HG which puts my CR around 8.3:1
OEM gasket set
3 inch berk dp
3 inch ems exhaust
greddy side mount
Made 306 and 283 at 17 psi with a mildly rich tune (11.3's)
GT3076 @ 14psi
custom fuel rail
Sard 800CC inj
turbosmart FPR (@40psi)
tial 50mm WG
AVO duel port BOV
JE ceramic coated pistons (top & skirt) 0.020" overbore
ARP hardware throughout
Clevite77 & King bearings
Custom Ex manifold, inlet piping, DP, Sump
few other bits..
making 220rwkw with heat soaked intercooler
(pulling 10 degrees of timing and 80degree C intake temp)
Gen IV block GenIII head
Swaintech coated 86.5 ATS wiseco's
KO ARP2000 head studs
ARP Main studs
1600cc ford motorsport injectors (for e85 )
RC/CS turbo (like a ct20b but with a inconel turbine)
ST205 A2W with dual heat exchangers.
Eventually going to put in one of those ems powered equal length manifolds with probably a gtx3076. But im going to save up for it, and install it after I run the RC some. Also will eventually upgrade the IC too but im not sure which route I will be going. Even further down the road will include some Tein coilovers and upgraded brakes
- AEM Map sensor
- AEM UEGO wideband O2
- AEM boost solenoid
- Supra fuel pump
- Supra 550 cc injectors (800cc Sard's in the mail)
- large A2W I/C with front mount heat exchanger
- GT2860RS turbo w/.86 trim turbine
- RMR square intake manifold
- factory 2nd gen internals, cams, etc.
- unsure of the exhaust
288 RWHP and 290 RW LB-Ft of torque. Torque dropped off slowly after about 4500 RPM so there's power to be made yet. That was at 18 psi. Have been tuning the AEM more myself since the dyno trying to improve the low throttle fuel maps. They were horrid from the start and it's been a learning curve but so far so good.
Going to stick with the AEM and possibly let it control water injection past 10 psi or so... The AEM already controls boost, trying to get it to control as much as possible in a "single box" solution. Looking at putting a AIT sensor just downstream from the IC and let the AEM control the A2W pump. No point in it running all the time if I'm cruising on the highway not under boost...
I used to work for Adaptronic, so naturally I have an Adaptronic ECU.
I have the e1280s ECU, just because I can, but it is overkill for most SW20s.
The Adaptronic Select ECU would be perfect for an SW20 though.
Note: my engine is quite highly modified, including a GT3076R turbo and W2A IC setup, among many other things.