Hello, I am wondering how good of gas mileage my camaro will get with the stock L69 305 in it? What about me future mods coming up consisting of edelbrock TES headers, and a dual outlet exhaust with a flowmaster 40 series muffler.

thanks for the help,

Ryan


BTW I was not sure where to post this...

 

I get 23MPG with my '86 TA, 305 TPI, 2.77.rear, and 170,500 miles.

 

I get about 25-27 MPG as of 3 weeks ago. That was all highway driving though. I run about 75-80MPH to get that.

 

highway i get close to 25 , city 17-20. by the way the headers and exhaust will definitly help in the performance end of it too.

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91 camaro RS
- 305 TBI
Mods: Performer TBI intake, 1" TBI spacer, K+N, jet fan switch ,160 thermo,Accel control module, Jet Stage 2 chip, edelbrock TES headers, Compleate 3" Flowmaster exhaust, Edelbrock springs, KYB struts and shocks, 700R4 built by TSI, SLP tq converter, b+m trans cooler
Soon to come .SLP Posi 323,Spohn LCA's and panhard bar,Ascd ram air hood, Z28 spoiler and grille,white guage faces.

 

On my carbed 305 I get 24 on the highway and 19 in town. Not too bad I'd say. I'm attributing most of it to my 3" cat-back since that's about all that's been changed from stock. The rest could be good lubrication, I use Amsoil oil and just had the tranny and differential serviced.

 

I win. I get 24mpg city and have gotten 35mpg(average of 32) on the highway. Mine's a 305 TBI, very well tuned.

Good investments for performance and mpg. Open element to free the breathing and SLP exhaust catback and headers with catco cat. That would cost you about $1000 for everything and it runs like a champ.

Just a little off the appearance topic now aren't we?

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Member of the Jersey Fbody Crew(JFA)

1989 Camaro Convertible RS
dark silver w/black top
305tbi, auto, 2.73 posi
SLP exhaust, 16x8 black
Check out Phil's Rice Boy Page

 

I don't know about you people but my 86 TA 305 TPI get about 9-12 mpg in town. Granted I didn't tune it yet, but I burned half my tank just riding with some friends for an hour or so.

Don't let my opinion discourage you, even though I'm paying for my lunch with quarters thanks to the gas guzzling TA, I wouldn't trade it for any other "fuel efficient" car

-Max

 

damn, all your 305's get alot higher mpg than mine and I only have a 3.1L. I only get 11-12mpg in the city and 17 on the highway with 70,000 mi on the car. I know this post is for the 305 but is there anything I can do to make my mpg higher?

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1992 Camaro RS
White with red interior
A sony 10 disc cd changer
soon to come flowmaster, and K&N

 

RSCAMARO92
the 3.1 has a lot of restrictive parts that rob power and mpg.

The old tune up is a great way to get your car moving. Cap, rotor, plugs, wires etc will get you going.

If you want specifics on other improvements email me, don't use @email.com, use @hotmail.com.

Phil

 

My 'bird, even in it's unfinished stage & not even fully broken in motor, gets 32 still on the highway

305 TPI, 3.08, 5 speed

My lg4 camaro tho,,, I won't even mention

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• My Firebird
• Others 3rd gens
• Part Diagrams

-Welders get better penetration

 

You know, I guess this would be included in appearance, because your car can't be seen out stylin if you aren't rollin down the road....and those extra 2 or 3 MPG's give you an extra 2 or 3 miles to let people stare....

 

that's a stretch.

 

Sorry about posting it in this board. I was not sure where to post it and this is the board I visit most so....

Thanks for all the replies