Welcome Visitor! Please take a few seconds and Strelok
Member
- Joined
- Oct 14, 2014
- Messages
- 30
- Reaction score
- 2
- Points
- 8
- Location
- San Francisco
- Vehicle Year
- 1990
- Make / Model
- Ford
- Engine Size
- 2.9
- Transmission
- Manual
I use my truck exclusively for transporting my motorcycles to riding destinations.
I've taken it over Grant's Pass on I5 three times now, lots of elevation changes.
It seems that up in the mountains I don't really have to shift out of 5th on anything even close to flat and the truck will do 80-85mph in 5th with my foot on the floor.
Don't get me wrong, it's still gutless, but on relatively flat surfaces I don't have to think about shifting
Once I get back to the bay area closer to sea level, where things are much flatter, the truck will not do over 65mph in 5th with my foot on the floor and I often have to downshift just to maintain highway speeds on the slightest incline.
I'm wondering if this ghetto cold air intake the PO put on is causing me to run lean, or what else it could be.
To be fair, by the time I get back to the bay I've been running for 8 hours, so maybe it's heat soak or something.
My truck is a 1990 STX on 31x10.5 tires, supposedly 60k on a rebuilt 2.9L.
I've taken it over Grant's Pass on I5 three times now, lots of elevation changes.
It seems that up in the mountains I don't really have to shift out of 5th on anything even close to flat and the truck will do 80-85mph in 5th with my foot on the floor.
Don't get me wrong, it's still gutless, but on relatively flat surfaces I don't have to think about shifting
Once I get back to the bay area closer to sea level, where things are much flatter, the truck will not do over 65mph in 5th with my foot on the floor and I often have to downshift just to maintain highway speeds on the slightest incline.
I'm wondering if this ghetto cold air intake the PO put on is causing me to run lean, or what else it could be.
To be fair, by the time I get back to the bay I've been running for 8 hours, so maybe it's heat soak or something.
My truck is a 1990 STX on 31x10.5 tires, supposedly 60k on a rebuilt 2.9L.
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