85mph speedo into a 115mph

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May 3, 2007 | 09:01 PM

85Iroc-Z

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Supreme Member

iTrader: (4)

Joined: Mar 2007

Posts: 1,698

Likes: 3

From: NE Pennsylvania

Car: 85 Iroc-Z

Engine: 383 TPI Procharger D1SC

Transmission: TKO600

Axle/Gears: Strange S60 3.73

85mph speedo into a 115mph

My car currently has the 85mph speedo cluster in it. The only things that work on it is the oil pressure gauge. Everything else works when it wants to. What would i have to do to make my 85 mph gauge work accuratly in the 115 mph cluster?

May 3, 2007 | 09:11 PM

Apeiron

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Joined: Jan 2000

Posts: 20,981

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From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Re: 85mph speedo into a 115mph

Nothing

May 4, 2007 | 05:25 AM

JamesC

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iTrader: (5)

Joined: Aug 1999

Posts: 19,282

Likes: 103

From: Lawrence, KS

Car: Met. Silver 85 IROC/Sold

Engine: 350 HO Deluxe (350ci/330hp)

Transmission: T-5 (Non-WC)

Axle/Gears: Limited Slip 3.23's

Re: 85mph speedo into a 115mph

Quote:

Originally Posted by 85Iroc-Z

What would i have to do to make my 85 mph gauge work accuratly in the 115 mph cluster?

Why stick with the 85? As Aperion intimates, the 115 or 140 would both slip in without modification.

JamesC

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