Series I performance parts - **Updated Page 1** - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-07-2004, 10:24 AM   #41
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Quote:
Originally Posted by BonEvilSSEi
So when I have GmTuners do it I will have them run it with no changes to the tranny codes except for the shift points increased, Im thinking with the right cam/rocker/spring combo around 5800-6000 rpm shift points.
You really need to get off this 5800-6000 shifting in a Series 1. Get it out of your head unless you just feel like blowing your motor. You're so far out of your power, anyway, it'll kill performance, then kill the motor.

The Series 2 develops it'* power alot higher. I'm assuming this is where you're getting your information. I would normally let this go after some time, but we can't afford to have someone else get this into their heads and not know any better.
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Old 09-07-2004, 06:19 PM   #42
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Originally Posted by BonneMeMN
Quote:
Originally Posted by SSEi95

I have been thinking of picking up a L67 car to take apart. I think it would be fun... and useful!
And when you/we're done it could go in some lowly SE...
:( :( :(
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Old 09-10-2004, 12:46 AM   #43
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by BonEvilSSEi
So when I have GmTuners do it I will have them run it with no changes to the tranny codes except for the shift points increased, Im thinking with the right cam/rocker/spring combo around 5800-6000 rpm shift points.
You really need to get off this 5800-6000 shifting in a Series 1. Get it out of your head unless you just feel like blowing your motor. You're so far out of your power, anyway, it'll kill performance, then kill the motor.

The Series 2 develops it'* power alot higher. I'm assuming this is where you're getting your information. I would normally let this go after some time, but we can't afford to have someone else get this into their heads and not know any better.
Next time read the whole post before picking on me....I said after I put in the cam and rockers then ported and polished the heads and lower intake manifold I wanted 5800-6000 rpm points......not on a stock motor....I plan on pulling the motor apart this winter and replacing some stuff like the piston rings and whatever else i find that looks worn or old....then doing the performance build using the ADM (aussie domestic market) parts
the cam in question I would be installing says its power band goes to 6000 RPM......so why wouldnt I want it to shift at 5800-6000 rpm?
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Old 09-10-2004, 08:55 PM   #44
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Quote:
Originally Posted by BonEvilSSEi
so why wouldnt I want it to shift at 5800-6000 rpm?
Valve float...the stock valve springs are like 80# @ 1". Part of this is because of the hydrolic lifters. Too much and you'll compress the holy hell out of them and they'll collapse giving like 0 lift heh. Upgrade the springs with the other parts and you should be on your way...the only other issue is that the 4T60-E isn't designed to hold very much power, matter a fact the PCM pulls fuel and timing which is actually why you don't shift at redline...or so I've read
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Old 09-10-2004, 09:08 PM   #45
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Sorry if I didnt say it, but I am planning on putting in heavier springs along with the rebuild.....and the stock 4T60E is friggin brand new with a 30000 mile warranty (which I have been guaranteed by my buddy the service manager at the shop it was installed wouldnt be voided by modding my car) he told me they upgrade a few things when GM Goodwrench remanufacturs them, so it should hold up a bit better than stock. I am however starting to think maby 5700 shift points with all these mods and a 5800 rev limeter. Plus if I didnt mention i think ill do the MSD DIS4 ignition hooked up to the 8224s.......but this all depends now upon how much christmas cash I get...hehehe.......Christmas present to myself.
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Old 09-10-2004, 09:13 PM   #46
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mmm unless they did a performance rebuild the only things they "update" are the sensors, valve body, and a few other nick nacks. It probably won't blow the first time you punch it but it was too weak to handle stock output, try modified with higher revs....I dunno, I know of at least one other guy that modded his engine and blew the trans. Your call
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Old 09-13-2004, 01:20 PM   #47
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When do you plan on ordering? can this wait until after the holidays for me jump in, or do you want it sooner?
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Old 09-13-2004, 04:28 PM   #48
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Quote:
Originally Posted by BonEvilSSEi
Sorry if I didnt say it, but I am planning on putting in heavier springs along with the rebuild.....and the stock 4T60E is friggin brand new with a 30000 mile warranty (which I have been guaranteed by my buddy the service manager at the shop it was installed wouldnt be voided by modding my car) he told me they upgrade a few things when GM Goodwrench remanufacturs them, so it should hold up a bit better than stock. I am however starting to think maby 5700 shift points with all these mods and a 5800 rev limeter. Plus if I didnt mention i think ill do the MSD DIS4 ignition hooked up to the 8224s.......but this all depends now upon how much christmas cash I get...hehehe.......Christmas present to myself.
I couldn't get the specific information for 95 or 96, but here'* the information on your tranny from 94 and 97.

94:
max shift speed (4T60)
1-2: 6000 rpm
2-3: 5800 rpm
3-4: 5200 rpm

this was in 97
max shift speed (4T60)
1-2: 6375 rpm
2-3 6300 rpm
3-4 5200 rpm

just something to think about before you set your sights on any specific shift point.

anyhew, if I had a series I, some money, and some time, I'd be all over these deals
I actually came pretty close this past weekend to picking up a 93 bonnie, but it didn't quite pan out.
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Old 09-13-2004, 04:59 PM   #49
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Quote:
Originally Posted by jr's3800
4L60-E.... Thats the rear wheel drive Tranny right?
oops!

the numbers are from the 4T60
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Old 09-13-2004, 07:39 PM   #50
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Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by mkaake
Quote:
Originally Posted by jr's3800
4L60-E.... Thats the rear wheel drive Tranny right?
oops!

the numbers are from the 4T60
Small question... Would the 95 4T60-E shift speed be identical to the 94? Just wondering... 6000 redline... And it shifts pretty much at red in first and second... Never tried 5200 RPMs in 3rd though( I would be limited anyhow...LMAO )
heh... from what i've been reading, it looks like it changed a little bit every year, and since the info isn't specifically available for the 95, all I can guess is that it'* somewhere between the 94 and 97. prolly a LOT closer to the 94 though...
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