pmack is the 1 to talk to. Running 11's on stock turbos and stock injectors and no NOS.
Hope pmack doesn't mind me butting in on his behalf but here's his list of mods that got him to 11.96 @ 115 mph -
Mods V Times
Car is 89 TT Auto , Stock bodied 2+0 ( No weight saving mods)Stock engine/injectors/turbo's/converter ,Neither engine or trans has been rebuilt. All systems in place excepting Egr delete. Tuned with wideband @ street/track on vpower .
Baseline Runs on street tyres /stock dumps with these mods , Udp ,Fmic, Safc, Apexi pod, Man boost Controller, Washers removed from cats, 2.25" centre offset mufflers , target afr's 12.2 @14deg best of 13.4 @ 105mph @ 10 psi
Same as above plus , afr's11.9@ 12deg Mines Ecu, one piece tailshaft, 12.9@105mph
Same as above plus , afr's 11.8@9deg ,Superior transmissions shift kit ,13.5psi, 12.70@110mph (bad wheelspin)
Same as above plus,afr's 11.8@7deg Ported ex maniflods , twin feed fuel lines, Egr delete, Manual turbo's(more lag)
M/T ET streets 15psi 12.50@ 113.5 mph
Same as above plus, Gizzmo ebc,rising rate reg, NPower dumps/test pipes 17 psi , 12.88 @113mph (no timing) afr's 11.5@4deg timing
Same as above plus ,Afr's 11.3@various timing, Nistune, 2.5"-3" tapered dumps 17 psi email@example.com
Same as above plus , Twin maf, 70psi base fuel pressure, increase line pressure in Auto, 20 psi reducing to 17 12.28 @ 113.5mph
Same as above plus , Remove speed limiter , lower tyre pressure,11.96@115mph
All timing is by cas until nistune installed. 10% toluene used when large changes were made.
So as you can see less is more , you get 80% of the gains for 20% of the cost , If you stop at the right time!
Motivation for this was , Because the Supras can run 11's on stock gear
At last count he was down to 11.76 @ 117.91 mph, I don't think there were any more mods since the above list. Just cooler air on the day.