Originally Posted By: Volvohead
Originally Posted By: S_Walmer
2009 VOLVO C30 TURBO B5254T7 6-speed M66 with
Autotech tune.
A
TUNED T7 model? Throw the OM out the window. The Elevate remapping takes it about 40hp & 40 ft/lbs over design. You're probably north of 260hp on it at full boost. Are you tracking this? Are there any other mods going? Have you re-indexed the octane setting?
I'm pretty sure the T7 has the Borg-Warner K04 blower on it.
No way you run an A5/B5 baby oil in that. You really should be using an A3 in it. If you can find one in a 30 range you like, great. Other than RL, I'd lean to a heavy 30, because your rod loads are significantly over nominal. But between the two Amsoils you are contemplating, that would be the Euro formula, not the SSO, which is NOT A3 and is an extended drain formula. You need above-normal protection.
Have you considered Redline? I know Dave looked into this for me a few years back for our R and zeroed in on their 10w-30 (and NOT their 5w-30) for these when tuned. But you can't do a lot of short-tripping on it and expect long OCIs. Otherwise, GC or M1 0w-40. The new M1 has apparently fixed the shear down it used to exhibit in T5s and Rs.
But I'm sure someone who never bothered to ask these questions, and knows next to NOTHING about your engine (or what this aftermarket ECU tune on it does) will still tell you to run some low viscosity juice in it for the sake of lower viscosity, because someone they met at a track did it with a completely different engine, and "thin is in". Such BAD advice, especially on something like this one. They're fixated on just HTHS, when you have higher than normal bearing loads to deal with.
Double-check at Swedespeed, but you'll find most of the tuners are running a heavier 30 in an A3 spec on your engine with that kind of mod package.
Whichever oil you pick, on a modded/tuned white block, I would absolutely get a confirming UOA before running it out to 7,500.
BTW, Nice Ride!
Thanks volvohead! I only have one other mod a
Simons Avgassystem catback I don't plan on doing any more performance mods. Approx 280 hp in current configuration. I will upgrade to EBC brakes when the time comes. My driving style is usually conservative with an occasional "drive it like you stole it moment"
. I have the autotech tune calibrated to 91 octane and Top Speed Limiter removed option it's also optimized for my catback. It's nice to know the tune is there when/if you need it. I have also considered redline I know it's popular with volvo tuners and if I read correctly G-OIL 5w-30 is thick almost a 40wt. I will send this oil sample to Blackstone. Your response is most appreciated.