13T conversions and wastegate boost

[Chris@Rvengeperformance]

Not sure where the brackets came from. I think they were a homebrew. I need to get back in the engine bay to play with some stuff but just moved. My guess is that the front actuator is too tight because its clocked wrong.

Also, the vacuum ports on top of the throttlebody; do they give a pressure signal for pre throttlebody or post throttlebody? I think that I have my vacuum reference coming from there.

your guess is my guess as well.

If you see vacuum on your gauge it must be coming after the throttle body.

[RealMcCoy]

In my experience, 13T's don't creep, but they are terrible for spiking....

Of course if the actuators are jacked up, all bets are off.

[anyonebutme]

Well, mine don't spike but since I installed a hallman, they creep, but not with the wastegates direct, or with IPO controller. set for 9, end at 11-12, set for 12, it'll be at 15-16 by redline. Also running basement timing, which drives the turbines harder.

[RealMcCoy]

That's interesting... I have WRX springs shimmed up a bit, so wastegate is around 11psi, if I lay into it fast they'll spike to over 14 before settling back down in the upper RPMs. If I crank it up around 19-20 psi, it'll spike over 24 getting there.

I've had the same experience on two customer's cars with similar setups, but three were using piggybacks with 450 to 600 cc injectors, so there was a fair amount of timing involved.

[Chris@Rvengeperformance]

my setup creeps a couple psi on the hallman as well.

[Bleu]

I just played around with the front gate. The rod might be just a wee bit clocked, but I can move the rod and flapper by hand. Tight but it does move. I need to move my tools to the new place to get under the car. The rear should be in the correct position still.

I haven't driven the car more than 100 miles in the last year. Maybe it was a serious boost spike because the car was so rich. I'm doing body work this winter. I'll update come spring.