What kind of milage does a 5.7 TPI in a 87 IROC w/ A4 get. What axle ratios were avalible? Do ya'll think either one of these is a good deal??


1. 87 IROC Camaro , very fast, too many extras to list, $2,850.

2. 87 Camaro, 4barrel, auto. 78K, good cond,

 

Choice #1.

The Carb'd car didn't come from the factory like that so that means it has had some aftermarket work.

In 87 you could expect about 20+ mpg highwayon the tpi car. The axle ratios avaliable were probably 2.73, 3.23, or 3.42 with the 350 TPI. I don't remember exactly.

 

There were 4b carbs in 87 Camaros, right? He wants 3K for choice "2". I haven't called "1" yet, but I hope it has 3.23 .
I wanted a 93 Z, but I can't afford it right now since I'm in HS and have about $3400 to work wit(summer job). Do you think a 87 Iroc with moderate miles would suffice?

 

My 89 350 Formula has the 9 bolt 3.27. I think all 350's came with the 9 bolt, and 3.27 was the deepest gear available w/350.

I couldn't give an accurate gas mileage estimate, too heavy on the throttle.

 

My 91TPI 350 with 3.23 gears and an auto trans gets me 24mpg on the highway, with the AC on and cruising at about 70-75.

 

Nothing's a deal until you see it in person. I've seen LG4 cars advertised as "very fast" and you have absolutely no idea what the milage & condition is.

The 2nd one doesn't even have a price, so who the hell knows whether it's a good deal. But, it's an LG4 car, so I wouldn't take it unless I had a crate motor ready to go in.

Anyway, if you go to http://iroc.fbody.com/camdata.html you can see all the axle ratios that were available with various engine/trans combos on all IROCs.

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The IROC Homepage
View the Restoration of an 85 IROC
Weekend projects aren't.

 

Sure it did. The LG4 was available in 87 and was rated at 170hp.



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The IROC Homepage
View the Restoration of an 85 IROC
Weekend projects aren't.

 

How'd you pull that off? I have the same setup and i get like 16mpg...

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1991 Z28.L98.700R4

 

Beats me. But that is what I got last year going up to St. Ignace. But it never was as fast as I had hoped. Too bad I wasn't trying for mileage in the first place!

 

My best tank was just a hair over 22mpg going from Detroit to Chicago. All speed limit cruising (65-70mph) except for one blast up to 85ish behind a Porsche and some sitting in traffic near Gary, Indiana. This was with the o2 sensor ground disconnected (don't ask, long story), and i think my car runs rich anyway. city is usually mid to high teens.

Edit: I forgot to add that I have a Trans Am GTA with 350 TPI and 3.27 rear gear. Windows were down the whole way too.

[This message has been edited by Red89GTA (edited September 13, 2002).]

 

On a trip from Atlanta to Amelia Island Fla. I recorded 25.4 mpg cruising 65-75 mph. After installing the TPIS fastpak, MSD ignition sys. and a ramair kit I recorded 27.1 at 60-65 mph on a trip to Birmingham, Ala. I daily get about 22 combined hwy/city going to work. I fill up once a week drive to work 30 mi one way and still have gas for a short trip around town. I have a friend with an 89 GTA and an 86 'vette with the same kind of results. On a recent trip he got 30 in the 'vette.

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92BLKL98
'92 Black Z28 Hardtop w/Harwood 2" cowl ind. hood, Modded 700R4, MSD
Ignition, March Underdrives, TPIS Fastpak, Ram air w/gutted filter box, SLP Prom, Flowmaster, & free mods, removed cats, Amsoil synthetic lubes, CE SFC's, Edelbrock STB,Spohn TA,Roadtech LCA's and Panhard Rod, Energy Susp., PST polygraphite bushings, KYB Shocks.