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Thread: 2800 stall torque converter
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05-18-2007, 10:28 AM #1
- Join Date
- May 2007
- Location
- Illinois
- Posts
- 87
red- 04 gto A/T
2800 stall torque converter
Hey there, I'm a new member & this is my first post. I own 04 gto A/T had few things done recently: I put a comp cam liftintake .566 exhaust .568,7.4000 push rods,springs,2800 stall torque converter,off road headers. Has anyone out there had similiar type of modification done? if so how is your city gas mileage? I was told i would loose 1 to 2 miles per gallon but I think i'm loosing least 4miles per gallon. I wasn't paying attention before but i'm sure bone stock i was getting least 15 MPG in city driving, now i'm onlg getting 10 miles per gallon & i don't get on the gas pedal.This is significant loss in gas mileage. I did this modification because they guy who did this i told him this is my daily driver in summer & he told me i would loose few but i was never told it will be this much. Any inout would help.
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05-18-2007, 11:13 AM #2
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05-18-2007, 11:41 AM #3
you didn't say so in your post, but have you had your car tuned yet? If not I would get a tune.
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05-19-2007, 09:31 PM #4
- Join Date
- May 2007
- Location
- Illinois
- Posts
- 87
red- 04 gto A/T
Yes, I did get the tune. I was little disappointed but maybe I was expecting little too much. Before modifications my car had 325 hp(with k&n air filter kit,flowmaster exhaust from cat. back), after modification & throttle body by pass it has 362 hp. Was i wrong t expect least 60 to 75 hp gain after adding a cam kit,off road headers, & 2800 stall torque converter? Also anyone out there with stock motor on 04 gto(LS1) a/t tell me what you're getting in city driving (mpg).
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05-19-2007, 10:10 PM #5
well i have a 04 gto w/ a 3200 stall and i get about 12 mpg city, dont think it will get any better when i get my cam, unlike you i dont have a light foot
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05-20-2007, 12:55 AM #6
well dont worry about dyno numbers...the stall will eat up some horsepower but will make you faster overall. Take it to the track and see what it does.
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05-20-2007, 04:33 AM #7
- Join Date
- May 2007
- Location
- Illinois
- Posts
- 87
red- 04 gto A/T
stall torque converter operation question
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05-20-2007, 05:59 AM #8
for around town driving what mph is your stall locking up? That will make or break gas mileage. Bad gas mileage just sort of comes with the bigger mods.
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05-21-2007, 05:58 PM #9
- Join Date
- May 2007
- Location
- Illinois
- Posts
- 87
red- 04 gto A/T
my torque converter doesn't lock up around town driving the rpm doesn't reach 2500 unless i press the gas pedal all the way down to the floor from stop.
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05-21-2007, 06:36 PM #10
- Join Date
- Nov 2006
- Location
- Broken Arrow, OK
- Age
- 49
- Posts
- 23,345
Pewter metallic- 2000 Camaro SS
Most convertors with a lock up lock at 45MPH I believe. I know my TCI 3800 locks at 45MPH.
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05-21-2007, 08:32 PM #11
it locks up wherever your tune tells it to lock up. Right now I have mine locking in 4th only at 45 mph. I would have to look back at my stock file but I think stock was mid 30's in 3rd.
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05-22-2007, 10:17 PM #12
- Join Date
- Aug 1999
- Location
- Arizona
- Posts
- 51,377
Black- 383 Procharged & N20 Vert
From HPTuners. If you drive in D it will lock up sooner, provided you are not into the throttle.
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