why does my car do that?

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Trent
-----
89 Firebird
305 v8 TBI
automatic
t-tops

 

You probably don't have posi-traction which means you have an open rearend. I believe most cars besides the Z28's came with open rearends. Someone please correct me if i'm wrong.

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes

 

Sounds like you have whats known as an open diff. If you want both to spin, get a posi.

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Rob
'86 TA 305 TPI
Gutted MAF, Ported Plenum
TB Bypass, Home made Cold Air Intake,
Edelbrock T.E.S.

 

Even the Z's came w/ open rears my 86 is open...

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1986 Z28 LG4 M5
Alpine 6x9's 2 10" MTX Thunder 4000's MTX Thunder 102 Amp Hooker Aero-Chamber Cat-Back

 

One tire fire! Mine has posi.

 

Peg-legged road runner

 

my 87 z28 doesnt have posi either . how hard would it be to switch it over to posi, and how much would it cost?

 

When my diff was leaking i didnt get posi they topped up the liquid and tightened it now i've got it back

 

thats ****ty, how much wold it cost to get a posi

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Trent
-----
89 Firebird
305 v8 TBI
automatic
t-tops

 

PowerTrax is like $300 from summit I think. It is one way to go, but I'm not sure what rears it works with.

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90 IROC 5.7l (L98)
ram air, K&N's, air foil,Flows

LIKE A ROC

http://members.nbci.com/IrocZgarage/home.htm

 

89+ cars Slp's OEM Zexel $100 is the only way to go. LOVE MINE. No clutches and is the best posi I have driven. Personally hate the way lockers drive.

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91 Camaro RS 5.0L Black Convertible 700R4
** Added so far **
*GM Wonderbar
*Alston SFC's
*Turbo City Inj Spacer
*Dual Snorkel Air Filter
*March Performance Pulleys
*GM 3.42 Gears with OEM Zexel
*Edelbrock headers
*3" High Flow Cat
*3" Dynomax Exhaust
*Walbro 255 lph Fuel Pump
***Future 330hp Vortec Crate with LT4 hotcam and 454 TBI

 

My old 86 Sports Coupe Camaro with the 4brl was even POSI. (it was like the most low end V-8 Camaro) I thought all the Camaros where posi, I heard just most people clutches were worn thats the reason for the one tire burn outs.

 

You need to be more careful who you listen too then.

Posi was far from standard Equipment. It is Just an option Like any other and came on some cars, and not On others.



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60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver 14.82 @ 91.1 (faster than Ed)
Reader's ride -> My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype

 

I'd like to smack the clown that ordered my IROC. Every option available in 85, but no posi.

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The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah

 

Rear windsheild Wiper ?



------------------
60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver 14.82 @ 91.1 (faster than Ed)
Reader's ride -&gt; My Ride

Just another Hot Rod kid, or thats what they all tell me.
Livin' the Stereotype

 

Zexel is far from 'the only way to go' The 100 dollar unit was taken out of new firebirds/camaros because it was too weak. It doesn't end up being 100 bucks after you add axles(if you don't have 28 spline),ring and pinion(if you don't have 3 series gears), bearings, professional install to set up the gears. Powertrax works just fine around town, it's not a 'normal' locker and is easy to install. The gears, bearings, axles, etc... remain intact. Auburn and Eaton also have some 'limited slip' units as well.

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350 with stealth intake, holley carb, 470 lift cam. 700r4 with .5 boost valve, vette servo, tci lock-up kit, B&M megashifter. Richmond 3.73 gears, powertrax locker, timkin bearings, synthetic lube. Custom 3 inch single into 2 2.5 pipes. 1 1/2 drop springs, 1 5/16 solid front sway bar, 1 inch rear bar, custom subframe connectors, custom LCA relocation brackets. Kobel ground FX, current red metallic paint. Lots of other stuff...
82camaro

 

It's been my experience that good ol' american v-8's tend to have this problem(?) with spinning tires during acceleration! To answer your question, 82Camaro has given solid advice. Another option would be to aquire a used rearend with posi from another 3rd or 4th gen car and swap it with yours.

 

Mine has limited slip(89rs 305tbi). When the burnout starts only the passenger side wheel is burning the the driver side wheel will kick a few seconds later. If you are racing spinning is great for kicks but who keeps it solid to the pavement will be the one that wins. Posi track will do this!!