Hypertect power programmer questions

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Jan 16, 2005 | 10:55 PM

98 corvette

Thread Starter

Instructor

Joined: Jul 2004

Posts: 243

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From: Surprise Az

Hypertect power programmer questions

On my 98 what should I put the auto trans shift firmness at, 25%,50% or 100%, also should I change my shift points, if so to what?

Jan 17, 2005 | 07:12 AM

BiggieBoy

Melting Slicks

Joined: Jun 2001

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From: Orland Park Illinois

St. Jude Donor '06-'07

Unless you've changed your rear end (to a different ratio), it doesn't make much sense to change shift points.

Jan 17, 2005 | 07:17 AM

xjcharity

Team Owner

Joined: Feb 2004

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St. Jude Donor '21

I have a 98 also. I set my shift firmness to 50%. I like the firm yet not harsh shifts. I think you mean do you change your mph for each gear shift?

Last edited by xjcharity; Jan 17, 2005 at 07:22 AM.

Jan 17, 2005 | 11:30 AM

jimcork1

Drifting

Joined: Jan 2001

Posts: 1,347

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From: Slidell La

Hypertec?

I have the HT for my 99 but haven't used it yet. It would be great if you could post the changes and results. thanks Jim

Jan 17, 2005 | 11:48 AM

lost

Drifting

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From: Spring Tx

I had mine set at 75% but I think this was too high as I kept getting and intermittent idle stumble that went away if I took it out of gear. I'm running plus 2mph 1-2,plus 4 mph 2-3 and plus 1mph 3-4 since I seldom get to 150mph in third. Lowered line pressure to 25%. With t-sat, programing,airbox and exhaust , I lowered my 1/4 mile time from 13.9 in bad air and heat soaked engine, to 13.1 in better, but not good air,much cooler engine .Trap speed went from 102.5 to 106.8.I bought mine used for $200, I'm very happy with it!

Jan 19, 2005 | 05:16 PM

INTHERED

Burning Brakes

Joined: Aug 2003

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From: MARRIOTTSVILLE MD

Quote:

Originally Posted by 98 corvette

On my 98 what should I put the auto trans shift firmness at, 25%,50% or 100%, also should I change my shift points, if so to what?

I ran my 2000 A4 at 100% shift firmness with +3, +6, +0 for the
shift points and was running 13.01 @ 107 mph with the 160 degree
thermostat. I found that the shift points made a huge difference in ET

Jan 19, 2005 | 06:15 PM

LivinTheDream

Racer

Joined: Aug 2003

Posts: 290

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From: 60 miles from BGKY

Quote:

Originally Posted by INTHERED

I ran my 2000 A4 at 100% shift firmness with +3, +6, +0 for the
shift points and was running 13.01 @ 107 mph with the 160 degree
thermostat. I found that the shift points made a huge difference in ET

I toggle my 98 between 75 and 100%; 75% for normal use and 100% for Autox and 1/4 mile. +3, +3, +1. No problems w/65K, the last 10K using the PPIII.