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I passed 1000 miles on the new motor this past weekend. In general, things are running well. Had the engine up to about 5500 RPM (Hap tells me it will safely pull above 6000 RPM) and it is pulling strong and sweet up there.
Here's our status to date:
<ul style="list-style-type: disc">[*]Still chasing an oil leak from the RH side of the motor. One possible source is the base of the dipstick tube (the plastic bit). This seems a bit loose. May also be coming from the timing cover. Hard to tell, will start with the dipstick area first as I can get to it.[*]Engine temps in general hold okay, but on the long pulls things do start to rise. On a slower, steeper bit I'm getting quicker rising temps (no boil-over yet, but I've had to turn around in one spot). This will need some looking into.[*]Need to do a full tuneup again. Running a bit rich, and having some trouble keeping an idle once everything is good and warm.[*]I'm not real happy with my exhaust, but that's my fault. I used what I had on hand to get the car registered. It needs to be opened up a bit (it's 1.5" pipe to a muffler I had on hand. Will probably go up to 1.75" and a better muffler, maybe a Harley one -- need to chat with Hap at some point). It works okay, but I think it's not quite what the engine and header want.[/list]
Overall, it's been a fun 1000 miles. The new motor seems a good match for the 3.9 gears. From 3500 RPM to 5500 RPM is a fun place to be.
Tunebug seems quite happy to cruise at 4000 RPM or so all day. Very smooth in that range. Still, a 5-speed will be in order some day (I have one in my shed). We've got great roads here, but also long freeways.
Here's our status to date:
<ul style="list-style-type: disc">[*]Still chasing an oil leak from the RH side of the motor. One possible source is the base of the dipstick tube (the plastic bit). This seems a bit loose. May also be coming from the timing cover. Hard to tell, will start with the dipstick area first as I can get to it.[*]Engine temps in general hold okay, but on the long pulls things do start to rise. On a slower, steeper bit I'm getting quicker rising temps (no boil-over yet, but I've had to turn around in one spot). This will need some looking into.[*]Need to do a full tuneup again. Running a bit rich, and having some trouble keeping an idle once everything is good and warm.[*]I'm not real happy with my exhaust, but that's my fault. I used what I had on hand to get the car registered. It needs to be opened up a bit (it's 1.5" pipe to a muffler I had on hand. Will probably go up to 1.75" and a better muffler, maybe a Harley one -- need to chat with Hap at some point). It works okay, but I think it's not quite what the engine and header want.[/list]
Overall, it's been a fun 1000 miles. The new motor seems a good match for the 3.9 gears. From 3500 RPM to 5500 RPM is a fun place to be.
Tunebug seems quite happy to cruise at 4000 RPM or so all day. Very smooth in that range. Still, a 5-speed will be in order some day (I have one in my shed). We've got great roads here, but also long freeways.
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