E60 535i performance help

[Gill3398]

I been searching for 9 months now on the internet. I been asking around. I have gone to several BMW performance shops in Brookyn, Queens, Bronx, and Long Island all to hear the same answer over and over again. They don’t know. Well I need help. Why can I I find a heavy duty radiator, a heavy oil cooler, and a heavy duty transmission cooler for my car. All support are for E90, E39, and E46 series BMW. I’m starting to think no one cares about me about my E60.

After owning a 1998 BMW 750il not 750li. The 750il is the own with the double pane looking Bullet proof windows and it’s a V12 it ended up having coolant issues. Then I own a 2006 645ci that ended up having oil issues leaking everywhere. Now I owned a 2009 535i. I want to do everything so it doesn’t run hot and have coolant issues or develop that nasty oil issues.

So far my baby is rare she’s not like any other 535i. She’s a performance 535i or just man overkill like I like to call her. I haven’t Dino her yet but I know she’s got more than 500hp at the wheels. Below is everything that I have done.


1. Dual Cone air Intakes - VRSF or BMS
Horsepower Gains: 20hp to the wheels!

2. Catless Downpipes - VRSF
Horsepower Gains: 25hp to the wheels!

3. Front Mount Intercooler (FMIC) - VRSF 7.5" Competition Intercooler
Horsepower: 15-20hp to the wheels

4. Upgraded Chargepipe

5. Upgraded Turbo Inlets & Outlets - 50+whp & 60+ft-lbs tq

6. Custom exhaust - power gains in the 0-10whp

7. Throttle body spacer - 15-25 horsepower & 25 ft lbs of torque

8. Precision Raceworks Ignition Kit N54 - gain 20+ whp and 20+ wtq

9. MHD tune - up to 100whp

10. NGK Spark Plug (97506) - 2 step colder for N54, 1 step colder for N55

11. Blow-off valves (BOV)

12. Solo Werks Coilover System (to fit my staggered rims)

13. Phoenix Racing Port Injection Intake Manifold

14. Fuel-It! Flow Matched Port Injectors - 950cc fuel injectors

15. Split Second AIC6 Port Injection Controller - N54 E Chassis BMW (Flash Only)

16. M5 big brake, M5 calipers, M5 rotors , M5 pads

[pbonsalb]

On stock turbos with pump gas, you won’t be making much over 400 rwhp on a Dynojet in SAE, but torque is probably over 400 lbs at the wheels. You don’t add up all the gains parts sellers claim to get your rwhp. You dyno the car or run it at the dragstrip. You may have to go custom on the radiator, oil and trans coolers. Custom is fiddly work that takes time, which is why the parts installer type shops aren’t interested. For the trans and oil coolers, adapting 335i parts might be a starting point. The E60 radiator may be wider so I would get the dimensions and then look. Who knows - maybe an M5 radiator would fit if you are using a dedicated trans cooler. What scan tool are you using to monitor the temps that tells you stock cooling is insufficient? It’s a decent all aluminum radiator, unlike some earlier BMW that had plastic side tanks that occasionally failed.