RyIROC13

I realize that I am new to the board, but I want to know how many of you actually DRIVE your car daily. I do, it gets driven everyday. From the mods that I see all of you doing, it seems to me that alot of you only drive on the weekends. So that fact changes the way you and I will modify my lb9 engine. I want power, torque, AND better MPG (when not playing around). What I really want to know is how much difference in gas milage do you guys get after modifying your car that much. I can pull around 25 mpg on average. Let me know what you guys can pull with your mods.

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BAD@$$ bowtie enough said

JR4444

Mine's a Daily driver, I take it to college everyday. The gas mileage isn't that bad if you don't get on it a lot. I personally think that the most impressive D.D. is Willie. He runs LOW 12 at the track and still drives it to work everyday.

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88 Formula 350 WS6
Upper and Lower SuperRam, 1000 CFM Accel Throttle Body, ZZ4 cam, 24# Motorsport Injectors, Larger Gutted Mass Sensor, Homemade Cold Air induction, Custom Burned PROM, MSD 6a box, MSD Distributor, Accel SuperCoil, Taylor 8mm wires, TB Bypass, B&M shift Kit, 160* Thermostat, Flowmaster Muffler

Headers in the mail soon to be installed

91banditt2

iTrader: (1)

it's a toss up!what do you want?
horsepower or MPG?
for the most part you can't have both.

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1991 banditt2 #130 of 600
Project 350 TPI Banditt II
http://www.street-dawg-racing.cityslide.com
www.gcfba.com (Greater Cincinnati F-Body Association)
http://www.cincyspeed.com/

afgun

I'd beg to differ... the MT fourth gens can get 30+ on the highway. Sure, it's not an econobox, but that's great mileage, and you can have well over 300HP on tap too.

Any time you step into the loud pedal you trade off for mileage though.

smokin87iroc

well i drive mine every day except when the snow it too bad. i don't know my mpg exacly but it was like 23 on the highway.
but seriously. if you are worried about mpg get a honda! you don't buy these cars and expect to get good gas mileage. no one buys a true sports car and brags about their mileage. you get a sports car to go fast. obviously you were able to buy the car and can afford the insurance so why should gas make that much of a difference. you will feel much better moding your car and going fast than you will bragging about a 20+mpg you get out of your car. ricers are the ones that always bring up the "well i get 30 mpg in my car" who cares! thats great, so why try to race it when it only has 100 hp?
oh well enough ranting on my part.
for the most part mods that you do to your car will help you get better fuel economy. give it more air to breath and a better way to get the exhaust out of the engine and you burn more of the fuel put into your cylinders giving you better fuel economy.
where you start going down in fuel economy is when you put bigger injectors or bigger cam's in and don't adjust your prom accordingly. look at the turbo buicks they get 20+mpg and can run mid to low 12's easily.
Andrew

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Andrew Peery
1987 IROC, 305 TPI, T5
Hooker Competition Ceramic Coated Headers, Custom y-pipe, Cutout, Flowmaster, Ported Plenum
All smog equipment gone and no cat
before headers
192hp and 265tq
15.20 @ 92.5 mph 2.4 60ft
After Headers
14.480 @ 95.01mph 2.194 60ft
With y-pipe
14.43 @ 96
2.16 60ft
with cut-out
14.11 @ 97.7 2.17 60ft

3.1EyeCandy

iTrader: (3)

Mine's a daily driver.

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~3.1EyeCandy~
"The car that started my craze" -'92 Firebird 3.1 (A car sold)

My new baby: '87 flame red GTA 350 w'auto, ported and polished plenum, custom cold-air intake w/K&N, Hooker SuperComp Exhaust, Splitfire plugs, Hypertech Airfoil,
Carmine interior with pioneer all around
THE GTA

RyIROC13

I did not mean to get you upset, but my car has great power and gets excellent gas milage. I just figured that if most people on this board mod the car that much it really is not a daily driver. BTW what is that guy getting his 12 second times with.

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BAD@$$ bowtie enough said
305 LB9
Flowmaster muffler
Gutted Cat
A.I.R. removed.
roller tip rockers
home done ramming
K&N filters
2.73 gears

Coming soon:
Accell 300+ ignition
headers
Tube runners...

palric

iTrader: (1)

Mine is a daily driver during the months when it makes sense to have a rare bird like it on the road. Can't see much sense in exposing my 45k miles Formula Firebird which is in IMMACULATE condition, to the vicious road salt, sand, snow, ice, crud and dangerous drivers that are a part of living in the great white north. This means the Bird gets parked from Dec-Mar.

In the mean time I wear my winter disguise -- a '93 TOYOTA TERCEL! This unit has comes with 93hp and about 70lbs torque. But hey, I get 35mpg and fill up twice a month. It is an automatic as well. Does it get any worse than that??? <grin>

I sure am looking forward to spring.

RP.



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'91 Formula Firebird G92,WS6,5-speed,3.42 a ton of fun to drive.

Beast5spdGTA

Mine is a daily driver and only car in FL at school. Mid 14s at 95-96mph right now, hopefully something around 100+mph after a cam sawp and some other little things. It's a 305 TPI 5 speed, headers, chip, homemade cold air. I don't get that good of gas milage, but as stated above, insurance and right foot happiness are worth alot more than the $400 you'll save each year with a honda. Just for you info. Fast hondas (14 sec) get about 13-16 mpg when driving around town flooring it all the time, just like we do...hmm, HP/fuel is very similar in any engine(N/A big and small, turbo or supercharged), just small engines don't need a lot of gas to fill their cylinders under small engine loads, the beauty of a turbo.

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14.62@96mph headers, muffler, chip, ghetto stuff, duct tape
89 GTA 305 TPI 5 speed 3.42 gears

BlazinOR

Heck, I daily drive my '79K5 BLAZER with a TPI406 on it...........gets better mileage than a carbed truck at least.........for me 14mpg is FINE, if you have this kind of toy as a daily drive you better forget about gas mileage.

You guys with the IROC's/Z-28's/RS's are getting awesome mileage for a kick tail street car.........man what I wouldn't give for 20+ mpg.

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'79K5 Blazer with 406TPI

BuckeyeROC

Mine's a daily driver. Hopefully it'll run mid 12's with a new tranny and some drag radials. I do have a crappy 90 Geo Prism that was my wife's old car for long road trips that I take for work and on rainy and snowy days. But I drive my IROC around town all the time when it's nice out, I hate driving that Geo. The IROC acts very close to stock when driven nicely.

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89 IROC-SuperRammed 355 w/ AFR 190's and LPE 219/219 cam-http://www.geocities.com/buckeyeroc

[This message has been edited by BuckeyeROC (edited November 29, 2001).]

Scott 88 GTA

Mine's a daily driver too. 16-18 MPG city, 22-23 on the highway.

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Black 88 GTA L98
271 RWHP, 344 RWTQ
13.406 @ 103.72 MPH
ZZ4 bottom end, Edelbrock 6085 heads, LT4 HOT cam, GMPP 1.6 RR's, ported stock TPI, SLP 1 3/4" headers, no cat, Dynomax cat-back, Custom PROM (by me), in desperate need of stall converter
E.T.F.A Treasurer

JR4444

Here's Willie web site

http://willie.camaro-firebird.org/

It's old but you can see how he did 12's on a 305!

breathment

mines an hourly driver

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- David
88' GTA 5.7L TPI MODS---&gt; air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series Muffler added to Unkown CatBack, Ported Intake

http://www.geocities.com/david_angel_16

RedFirebird

My firebird's my driver. It gets okay gas mileage. And you can have HP and good gas mileage up to a point with fuel injection. The trade-off is that depending on how much you spend on TPI, your gas savings might not net that much at all. My vette does get good gas mileage 17/25 roughly but thats not the reason i bought it.

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Red '87Formula Firebird
-mostly stock 5.0L LG4 w/cowl induction setup borrowed from '83 TA and T5 tranny.

My newest Ride:

'85 Silver L98 Corvette w/4+3 manual tranny. not bad for $3500.

JJ

Hey, I have a formula and drive a 94 tercel as a daily driver !! I bought it (tercel) new and at 125,000 has not had ANYTHING go wrong with it. I've actually been researching dropping one of the older toyota turbo engines/setups in it one of these days



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89 formula L98, free mods, slp exhaust-headers back, slp CAI, BFG DRs, transgo, pulley, vigilante, MSD ign.

Scott_92RS

Mine will still be a daily driver even when I have the 406 in it. I am hoping for LOW 12's hihg 11's on just motor

Cam28_boy

Mines a daily driver and I have no mufflers right now...can't afford to put them back on.

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1991 Z28 5.7L
All free mods/afpr/hurst lock up harness/flowmasters(off)/lakewood Lca's/accel stock size injectors/msd6A-plugs, ignition coil/k&n/lakewood adjustable panhard rod.
1/4mile 13.7@102. Expected et next outing 12.9@? (with slp 1 3/4 headers and new ported sportsman II heads along with 24lb injectors, adjustable torque arm spohn or bmr)