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Old 12-22-2007, 04:51 AM   #1
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Default 4T60E-HD vs 4T65E-HD & some transmission upgrades

For the 94 SSEi
The ZZP links should be fixed now.

I don't know how to start this question about the differences between the two transmissions, so I assume everyone else here will have to get it going for me.

I've been looking around at Intense & ZZP. I found this:
http://www.zzperformance.com/grand_p...=133&catid=105
http://www.intense-racing.com/Mercha...de=ATI-TCx-xxx
These seem interesting. As I was reading about the one on ZZP, I thought I might ask you guys what wouldn't let me use this on my 94 SSEi.

Then, there'* this:*
http://www.intense-racing.com/Mercha...t_Code=GCK-3xx
http://www.zzperformance.com/grand_p...=360&catid=105
ZZP'* more expensive one shows a 4T60 option. Would I be able to use Intense'* 3.69:1 conversion kit for my 94?

This is more on the brainstorming side than performance, but I am very interested in trying it out if I can gain a lot of knowledge and call Intense & ZZP to see what they think as well. It would be very interesting.
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Old 12-22-2007, 07:45 AM   #2
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ZZP must either be down, or your ZZP links are not working.

Either way, only the TC will work for you. There are alot of similarities between the -60 and the -65. And just as many differences. If you want a -65, your best and right now only option is to go S2.
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Old 12-22-2007, 10:22 AM   #3
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Which car are you talking about? Are you aware that you'll have to adjust your shift points in your PCM also?
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Old 12-23-2007, 04:48 AM   #4
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It'* great that I can use the TCs they offer! Is it just a plug and play kind of thing for just the TC, or is something else necessary if I were to buy one?

If I were to switch out the gear ratio, would I just need to get someone to rewrite the PCM to change the shift points and adjust the speedometer?
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Old 12-23-2007, 11:44 AM   #5
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Quote:
Originally Posted by willwren
Which car are you talking about? Are you aware that you'll have to adjust your shift points in your PCM also?
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Old 12-23-2007, 12:01 PM   #6
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To answer the speedo question, no recal will be needed. The only time a recal would be needed is if you changed tire sizes. Remember, the speed signal is generated by a hall-effect sensor, and gets its reading from the output side of the differential. Provided tire sizes are the same before and after the swap, the rotational speed of the diff will be the same. It'* the torque of it that changes.
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Old 12-23-2007, 12:33 PM   #7
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Looser converters tend to need changes in the 3rd and 4th lock up tables.
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Old 12-24-2007, 01:02 AM   #8
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by willwren
Which car are you talking about? Are you aware that you'll have to adjust your shift points in your PCM also?
I'm talking about the 94 SSEi. I am aware of the PCM adjustment, and I'm assuming without first checking that Ryan Gick of Sinster Performance will be able to help me out.

Is it that I won't need a recalibration at all if I stay with the 4T60? That'* wonderful news! I remember that about this time last year, I was at my friend James' house, and the speed sensor fell out. My car couldn't shift up, and all I had was a car jack.

James volunteered to jack up my car and get under it without light, jackstands, or any tools and look for something that looks like a plug just hanging. At first I thought it was ridiculous and too far out, but as soon as he got under the car, on the snow with only his clothes and no crawler or anything, he found a loose plug on the transmission and shoved it into place.

Here'* to James!


When I took it to my transmission place, they said they no longer carry the plug, and it'* now in there with silicone caulk. Seems to work fine. Anyway, when unplugged, it does not at all move the speedometer. Is this the only speed sensor I have? I have to assume that this is the sensor you're talking about, sandrock. It'* kind of surprising that this is the only way my car tells what speed it'* going. How strange.

My TC doesn't lock up because of some electrical problem. I have an SES light for a TCC failure, but if I reset the car by taking out the battery for a while, I can go to OD easily. There'* some weird electrical problem with my transmission, and I need to fix this as well. I saw on willwren'* site a drawing of a circular plug that goes on the front of the transmission housing & right under the TB. The wires look fairly aged, and one of them broke off but was "fixed" with a speaker wire. This will be serviced very, very soon. Do you think that could be my problem as well?
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Old 12-24-2007, 07:18 AM   #9
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That is the only speed sensing item on the car that the PCM uses. Like I said earlier, it'* a Hall effect type of sensor that uses magnetic inductance to determine what speed the car is traveling. (There are also 4 wheel speed sensors, but they do not measure MPH. They measure rotational speed and are compared to one another to determine brake lockup). Silicone isn't the best method of keeping that sensor in place. Better off going to a junkyard and scavenge one and its plug. In most cases, it'* pocket fodder.
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Old 12-24-2007, 09:13 AM   #10
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I'd love to have the proper connection for that sensor. I'm going to see if I can take one without jacking up a junkyard car. Otherwise, I hope so much that the silicone holds! Aside from this, my 94'* transmission has about 40K miles on it, and I'm about to do a transmission fluid flush (maintenance, and no problems). If I can fix the weird shifting thing, I'd have a perfectly normal transmission. I think it'* too "fresh" to be an experimental transmission, so I was kind of hoping to find out if anyone had done this before or is at least known to work.

It was mentioned that I'd need to change some lockup tables with a looser converter, but I kind of skipped over that by mentioning mine doesn't lock up. Could we chat about the tables for a moment?
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