dprantl

Did you just go there? . Actually it's ok, it took me a long time to get Mark to admit that in 1st gear, since there is no lower gear before it to be able to maximize HP, the shorter the gear the faster the car will accelerate AND its maximum acceleration will happen at the engine torque peak . Of course the assumption is that the tires are fully hooked up and do not spin at all. After 1st gear though, it just becomes a bunch of trade-offs.

Dan
'91 928GT S/C 475hp/460lb.ft

blown 87

After first then there are trade offs, but in a contest of acceleration, the first 60 foot usually tells the tale.

blown 87

A bit OT, but Dan how are the roads where you are at?
We have gotten about 3/8 of a inch of sleet since so far and it has turned to snow.
Tomorrow will a redneck holiday for sure.

Lizard928

Glad to hear she is done!

And i havent changed the coding plug yet. It idles high, near 1k and doesnt drop down all that quick at times.

blown 87

Not done yet, I am sure the black bitch has some curves to throw at me before it is done.
It is close though.
Even if I do get done tomorrow, doubt I will be able to drive it, and that is going to drive me nuts.

dprantl

As of this moment nothing has fallen yet. An hour ago, the forecast was 4 - 5 inches turning to freezing rain by morning. It seems now the weather nerds are backing off to only 2 inches total accumulation.

Dan
'91 928GT S/C 475hp/460lb.ft

Hilton

Based on driving - there's an input to the cruise control too. When you push the clutch, it suspends, and resumes when you release the clutch (so the cruise control doesn't redline the engine when you change gear).

Not sure what the wiring is for that however, but figured I'd mention it so you know to track it down.

blown 87

There is a switch on the clutch pedal, and that is a good point, it may not work unless the coding plug is right, but I suspect it is in the cruise brain.

All this little stuff takes time.

And I still have a very intermittent fault that shows up maybe once a month when it looses the ability to control the idle. (dies)
It is far better now that it was, but I have replaced all the engine harness ends, the ECM, the TPS (twice) the IAC, no vacuum leaks, cleaned all the grounds twice, just frustrating when it happens, and it is going to be more of a issue with a 5 speed than a auto.

I think I got shark bit some place along the line, as I bought this car to flip.

Podguy

Boy you guys make things harder than they should be. The backup light is switched from the transmission. On the auto it switches a relay - I think on the five speed the relay is removed and jumpered. The same for the starter lock out relay. The wires for the gear lights are not used and can be ignored. The tach can be replaced with a five speed one to eliminate the lights.

The cruise control over ride is wired in to the auto. In fact the chassis has the bolt holes for the micro switch. The wires going to the microswitch are coupled together in tghe auto. Just remove the coupler and connect the wires to the micro switch.

A bit of creativity can be used with the clutch pedal to mount a piggy back micro switch to provide a clutch lock out for the starter. Just use the auto relay and connect it to a second micro switch. If the clutch is not pushed in the starter will not operate. This is a common safety feature on new cars.

If I remember right the wiring harness from the car from the trunk forward is the same for both auto and manual. Just when the manual trans is not installed some of the wires are not used.

Good luck

blown 87

It is always harder when you try to make them like the factory did it instead of hacking things up.

Lizard928

The cruise is completely seperate.
The wires are white and near the top of the pedal in a clear plastic connector just attaching the two wires together.

This switch looks exactly like the idle and WOT switches on an L-Jet car.

The cruise will work normally other than reving up (slowly and only when you are dropping speed). Seeing as how i only ever use cruise in 5th i simply left it as was.

blown 87

I have got that hooked up, no way to get to the shop today, and tomorrow is not looking good either.

dprantl

Snow shoes?

Dan
'91 928GT S/C 475hp/460lb.ft

blown 87

Ice skates here, man we got a lot of ice here.

blown 87

Well I got it to the point i could drive it today, I have a vibration now, seems engine related, I am going to try and have the flywheel balanced the same as the old auto flywheel.

I had my local machine shop balance the rotating assy and they gave me no records and could not tell me if they did a internal or external balance on it.
Yea, pisses me off.

It changed the car a great deal.