4 banger top speed
#1
Joined: Aug 2007
Posts: 5,809
Likes: 4
From: Indiana/Mississippi
4 banger top speed
Ok, with my 2.5 with 3.73 gears and running 31s has like a top speed of maybe 70 mph. Is that right? I was going down the interstate this evening on my way home from college and had the thing floor boarded at 70ish. It is pathetic. It never used to be like that and I would not have thought the 31s would have been that bad. It just seemed slower than normal tonight and there was not much of a wind. Is there anything I can do? Will my hopefully future 4.10 gears fix this or make it worse?
#6
Joined: Aug 2007
Posts: 5,809
Likes: 4
From: Indiana/Mississippi
#11
the throttle position sensor runs off of v-ref which is 5volts. the throttle position sensor, at idle should be as close to .96 volts as possible. you hook a voltmeter up to the gd wire and the v-ref out wire and elongate the tps sensor holes and turn it until it reads .96 volts. disconnect the battery afterward, it made a big difference on my truck. mine was at .78 when i started
#12
replaced mine, havent run thru a full tank yet but seems to be the same if not worse mileage ... then again im running the stock 225/70/15s
#14
#15
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94CaymanBlueLongBed (08-03-2022)
#19
I had 4.10s and 26.7 inch tall tires. It was fun. I out ran 2 3.0 rangers at our strip. It pulled very hard for a 4 banger, but sucked gas. I was running 3000+rpm at 60mph. With the 31s i turn 2400 at 60 and get better gas mileage, and yes my speedo has been calibrated. 5th gear is a dog though.
#20
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#25
Joined: Aug 2007
Posts: 5,809
Likes: 4
From: Indiana/Mississippi
Ok, the guy that originally had the truck almost exactly followed the book that came with the truck on when to change stuff. They filled the book out perfectly but I never saw in there when or if they ever put new plugs in. The second owner never said anything about it. So now me being the 3rd owner, I am going to change them. I'll look at them and see what shape they are in. This will probably happen in about 3-4 weeks.
Also, I went yesterday and made sure they had exactly everything everything I need at the autoparts store. They had everything except for the intake gasket which there is one at the next store over.
Also, I went yesterday and made sure they had exactly everything everything I need at the autoparts store. They had everything except for the intake gasket which there is one at the next store over.