Most of the contributors are still active here.
Mostly trying to figure out if I can have my cake and eat it too with a fast spooling single and using a wastegate on the top end to regulate drive pressure.
Info: .83 AR for 73mm turbine wheel
- Thread starter MAXX IT OUT
- Start date
Mostly trying to figure out if I can have my cake and eat it too with a fast spooling single and using a wastegate on the top end to regulate drive pressure.
If you mod the housing maybe. The gate ports inside the housing are anemic and the OEM cover also stops the flaps from fully opening. I know of a few guys who've done some extensive work on the housings and seen gains but they also aren't selling those housings.
What mods? What usage?
What mods? What usage?
I've seen the modded covers to give the wastgate more travel and also drilling the ports larger while still being covered by the disks.
L5P with 100's trying to get more on top of the charger while cruising over my 472 if the .91 housing had a wastegate I'd jump on that and worry less about drive pressure.
Have you watched drive pressure with your current setup to see where it becomes an issue RPM-wise?
I haven't installed my gauge line yet, but I can't see it being very high with a 87/1.0 housing.
Sorry hadn't seen the other response from a few years ago. I am now running a S369 1.0ar/S488 1.15ar compound setup. I found out that the 1.0 housing, at least in the compound setup actually built boost faster, spool up took a bit longer, but was able to accelerate faster after it started building boost. So if your going to try to run the smaller housing and get the best spool and power I would a proper external wastegate. Probably could run a light spring 8-10 pound and run a boost line to the top of the gate so that the gate would make up for the cfm of the small housing. Probably would need a 40-50mm wastegate to make it work properly.
