Gas tank compatability: 86 IROC -> 92 RS
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,817
Likes: 1
From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
Gas tank compatability: 86 IROC -> 92 RS
Will a baffled gas tank from an 86 IROC fit in my 92 RS? I'm tired of my car dying when I have to make a hard stop with under 1/4 tank of gas. Plus, the rear will be off soon, anyway, so I might as well put one on there. Also, where can I buy new foam for the tank straps, or is it something I can buy at a hardware store? Thanks guys.
Senior Member

Joined: Aug 1999
Posts: 618
Likes: 0
From: Central, NJ
Car: 1989 IROC-Z
Engine: 350 Vortech Supercharged ZZ4 TPI
Transmission: T56
Axle/Gears: 3.73
It should fit, but if the gas tank you are swapping in is not a 1LE tank, it should be the same as the one in your RS now.
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1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)
Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's, Accell 24# injectors
1989 Chevrolet Celebrity Eurosport <--DEAD AS OF 9/20/01
2.8 MPFI, no mods
225,000 miles and still ticking!
More info and pics on my webpage:http://go.to/iroc-z
AOL IMer: GPA 0point0
------------------
1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)
Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's, Accell 24# injectors
1989 Chevrolet Celebrity Eurosport <--DEAD AS OF 9/20/01
2.8 MPFI, no mods
225,000 miles and still ticking!
More info and pics on my webpage:http://go.to/iroc-z
AOL IMer: GPA 0point0
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Your 92 gas tank already has the baffles in it. The first 1LE's were in 88 but they went into regular production in 89. All thirdgen gastanks you get from the dealer now are baffled, and they fit all 82-92 thirdgens.
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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-
------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,817
Likes: 1
From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
There is a differnet tank, not sure if I want to get a GM price on it
It started in 1989, here is an excerpt from the technical articles for a 1989 IROC w/1LE: "Special swinging fuel pickup in gas tank and special 18 gallon baffled fuel tank for fuel pickup down to .5 gallon reserve to prevent fuel starvation in hard cornering"
I want that gas tank, cause I know for sure mine doesnt hold 18 gal, and I also know for sure that my gas tank does not "perform" well under hard cornering.
[This message has been edited by Scott_92RS (edited September 27, 2001).]
It started in 1989, here is an excerpt from the technical articles for a 1989 IROC w/1LE: "Special swinging fuel pickup in gas tank and special 18 gallon baffled fuel tank for fuel pickup down to .5 gallon reserve to prevent fuel starvation in hard cornering"I want that gas tank, cause I know for sure mine doesnt hold 18 gal, and I also know for sure that my gas tank does not "perform" well under hard cornering.
[This message has been edited by Scott_92RS (edited September 27, 2001).]
TGO Supporter
Joined: Nov 2000
Posts: 2,201
Likes: 0
From: Houston, TX
Car: '86 T/A
Engine: 350/LT1 Intake
Transmission: 700R4 - Built
Axle/Gears: 4th gen 3.42
Yeah, I am pretty sure that all third gen gas tankes are 15.5 gal. I remember reading that from numerous posts made.
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Third Gen Project - Website now defunct because crosswinds sucks
1989 305 tbi Camaro RS Red/Red
Ram Air II Hood
Centerline Champ 500 Rims
Edelbrock Open Element
MacEwen White Faced Guages
------------------
Third Gen Project - Website now defunct because crosswinds sucks
1989 305 tbi Camaro RS Red/Red
Ram Air II Hood
Centerline Champ 500 Rims
Edelbrock Open Element
MacEwen White Faced Guages
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
There is no 18 gallon tank with a swinging fuel pickup. Its a myth/rumor. Several 1LE owners have measured their gas tanks and they're all 15.5-16 gallons, same as the rest of us.
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Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,817
Likes: 1
From: Plano, TX
Car: 1992 RS
Engine: 406 Stealth Ram
Transmission: 700R4
But the 1LE cars still got different gas tanks, right? Both my car and my sisters have problems with the gas running away from the pickup when we are under a 1/4 tank. I really dont car about the size, as long as the baffles work.
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Like I said, as far as I know, the 1LE tanks are the exact same as the other 89-92 gas tanks. They both have baffles. But I've never seen this "swinging fuel pump pickup".
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