98chevyz71
RESIDENT CHOP GUY
Something must be wrong
Blue 95's Build Thread
- Thread starter Blue95
- Start date
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Something must be wrong
Chris6060
I'm Awesome
I know. I can't figure it out. I'm gonna replace the filter, lines from the filter to the TB
I have the ultimate tbi mods other than the quarter mod, but I need to put an inline fuel pressure gauge in as well
TylerZ281500
Yukon Ridin High
i get about 12.5 - 13 with a very heavy foot and nowhere near a stock engine but i have a ton of time into tuning my truck as well which helps.
Thank you! I like it a lot how she is now, I would like spacers in the rear, but it is ok.
well I acg about 14.2mpg in the city to and from work, like 11 stoplights and under 55mph, no a/c running. On the highway running 72 mph, with some gear and the a/c I do about 17-18 mpg.
I have all the normal tbi mods, adjustable fuel pressure regulator, FastChip chip, bit shorter tires, 3.73's, UD pulley, advanced timing, modded stock air intake. Nothing crazy, I baby it most times, but run it hard some days too.
Chris6060
I'm Awesome
Wow. A lot better mileage than mine. My truck has all the TBI mods except the adjustable regulator and I don't have a fuel pressure gauge inline yet. How're you liking the chip? I'm not sure where to go for a chip. My trucks timing is advanced, 3.73s, UDs in the future and I flipped the lid on my intake during the summer.
I used to baby it because I figured it got bad enough fuel mileage as it is... but then one day I filled it up and decided to romp on her all day and she got almost identical mileage, so Im not sure whats going on. She runs around 65-70 degrees C (150F) with an aftermarket Rad and a brand new (maybe defective?) thermostat in her. Maybe if she ran closer to 90C (195F) she'd start to run with better mileage? Just looking for places to start.
Truck has a full tune-up, relatively new dist cap, new wires, new ACDelco plugs, timing has been put to stock and re-advanced multiple times, trying to figure it out.
I noticed the return fuel line has a small twist in it by the TB, I'm wondering if maybe thats contributing..
Anyway, enough with my hijack!
I look forward to seeing where your truck goes and if I ever have questions when I get around to lowering mine, I'll probably PM you! lol
What brand of lowering kit did you go with? Belltech hangers and shackles in the rear and torsion keys up front?
I dunno what the brand options are.
I love my chip, worth it. YOu can go Fast Chip, Wester's, there is a few other good ones.
Why would you flip the lid in the summer? you want to suck in more hot air so the engine pulls timing and has less dense air? flip it back and pull the choke tube out of the silencer and fender well.
Any codes? 150F is too low, but confirm with an IR gun, it needs to be at 195F.
No problem, always willing to help! Yes I have Belltech hangers and shackles in the rear I got used from AnnieSS on FSC, then "purple keys" from an '09 2500 Surburban for the front, then an alignment.
I also have Airlift Slam air helper bags, they are a must.
If I had the time and space to do it again I would do a notch and shackles, hangers are more work.
ccreddell
I'm Awesome
If you really are running 150 degrees, that would explain why your MPGs are so bad. The computer thinks the truck isn't warmed up yet and runs a richer mixture (like running with the choke on all the time) because of that.
Chris6060
I'm Awesome
I used to run the stock intake with a 305 tube in the summer but haven't put it back in yet.
I think a new thermostat and intake re-install are in order.
I think a new thermostat and intake re-install are in order.
pics will be posted in a few weeks.
