Quote:
Originally Posted by ZM2
Here’s the relevant link: https://f87.bimmerpost.com/forums/sh....php?t=1774687
It’s fine to run stock, stage 1, or stage 2 turbos. However, the outcome is different.
With the stock turbo, WGDC is consistently 95+, so maxing it out for sure. Plus, power drops off significantly after 5500rpm, so you need to shift at 6k to maximize speed.
With my Dinan, I got a few more peak hp and it held power much better up top, and my WDGC is low 90s. Altho, it’s still a pretty significant drop and I shift ~6100rpm. Looks like the map is good enough for a 7.4-7.5 100-200, but I have been able to try much.
With a PS2, peak jumps from 440-445whp to 500whp, and the upper RPM power curve is much better so you don’t have to shift early.
So, it works, just really need to watch your logs and shift earlier with the smaller turbos. The plus side is I hit 507wlbft @ 2600rpm from the faster spool up of the smaller turbo, which makes the car a riot around town! |
Wow, that's amazing! Are you running a hpfp upgrade as well cause I saw in your post you were also testing the E30+ map which requires a hpfp upgrade. Do you know if the stage 2H 93/E30 maps will work with a stock hpfp or if it would be limited and start crashing? Also, I can't imagine it would be good on a stock turbo in terms of reliability.