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Showing results for tags '16v'.
Hi folks. I have had my TC for about a year now and changed the oil for the third time a couple of days ago. Each oil change required 7.5 quarts of oil with a filter change. The owners manual and shop manual does not have the oil capacity of 7.5 quarts. What is the experience of other 16V owners when changing oil? 4.5 quarts? Anyone have ideas as to why the excess capacity? No complaints, as I welcome the extra oil capacity. Just want to know what others are experiencing. The engine has great oil pressure that fluctuates with engine speed, consumes no significant amout between changes and has what appears to be the original dipstick. I am using Royal Purple 5W-30 and sure am happy with how clean it appears when it's time to change it. Not so happy with the $9/qt price however.
On Saturday my "new" 89 Red/Ginger/Ginger 16V California TC showed up. I've had an 8V for several years (Jeffn, That's the C/G/G one I bought from you and still running great if you're watching this group) but this one was in such good cosmetic shape that I just had to have it. Wow, what a difference from the 8V! I knew it would be faster, but this is amazing. Has a few issues, leaking oil quite a bit, but that may be related to oil in the airbox coming through the valve cover breather line; I'm working on that. Running rich too - failed emissions on CO and Hydrocarbons, suspecting the O2 sensor (there was a code 21 O2 sensor error in the SMEC, but that could have been leftover from before a new O2 sensor [by the look of it] was put in - cleared the code and it hasn't come back) although an air-fuel ratio gauge on it never goes to rich at all, so it may be bad... I will figure all that out, but my question for those of you who have or have had a 16V is this - what is the standard max boost for a stock engine/SMEC? I put a boost gauge on it and took it out to see, and at WOT it jumps right up to 13psi! I was surprised because my 8V (with stock SMEC in place) never goes above 7 or 8. I've even heard the stock Blow Off Valve pops off it's seat above 7psi. But here's this 16V running right along at 13... I know it's a non-cal'd SMEC as I opened it up and no new EPROM in sight... Is it supposed to go this high, or is the wastegate not opening? I thought about pulling the wastegate control off to see if it would go higher, but I'd rather hear from someone who knows these engines first... Thanks, Jim