The final results were 193whp. This dyno had the better curve, hence why it is up 183whp. This was with a Cultus intake, individual runner manifold, same turbo, stock engine, 370cc injectors, link piggy back, custom fuel rail and an AFPR (not rising rate), base timing between 0-1 degrees (all the timing mods you need for high rpms anyway... part throttle, can suffer). The Cultus intake itself added 14whp, and helped to reduce tendancy to knock so that I could run a couple psi more. The only thing I can say about this much power is that running it for over a year with an unmodified head, on a high mileage motor, will help accelerate exhaust valve wear. That and some thoughts about cooling would be good (oil cooler, rad).
Around 7+psi is really where this turbo likes to be and although it does start to smooth out inefficiencies before 7+psi, it is only really starting to take off at this point. So, naturally it seemed to suit that I should put the car on the dyno the very next day and raise the boost.
What kind of results would that give on a stock GTi motor with 10:1 compression and boost pressure of around 9-9.5psi?
151.7hp at the wheel, and 146.0lb/ft of torque at the Wheel out of the 1.3L twin cam.
crank hp 175-190hp.
89 Swift GTi - Mitsu TE04H, DSM intercooler, Custom high flow fuel rail, adjustable fuel pressure regulator, adjustable cam gears, DSM upgraded fuel pump, LINK AFM correction unit, 7.5psi with manual boost controller vs. no boost controller at 4-5psi, 2 degrees base timing, 91 octane pump gas no additives, stock ignition system, stock cooling system, no oil cooler, 2500lb RZM pressure plate.
blue is start of the day with no boost controller, and boost only hitting a few psi in lower rpms.
red is after 10 runs taking sweet time going up to 7.5 psi, playing with AFM corrections and fuel pressure for right mods. I will add the baseline run I did on this same motor for an even more eye opening comparison.
89 Swift GTi base-line runs after custom hand-built (scab welded by me) turbo project dyno runs at 5 psi of boost on an internally stock 16 valve 1.3L DOHC GTi motor with 280,000kms on it. Basic mods- Mitsubishi TE04H turbo from Chrysler 2.2L turbo, DSM intercooler, DSM fuel pump, custom fuel rail, custom adjustable fuel pressure regulator, 2.5" down-pipe from turbo to 2" exhaust, 2"-2.25"intercooler piping, 2.5"turbo intake pipe. 5th injector turned off.
estimated flywheel hp given 20-25% drive-train loss.
Peak estimated hp at crank 140hp-145hp
Peak actual measured wheel hp 117.1hp
Peak actual measured torque at the wheel 107.5 lb/ft
Couple pics of it no the dyno...
