Silverado build 3.0...or should I say 8.1

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Rettax3
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Re: Silverado build 3.0...or should I say 8.1

Post by Rettax3 »

Hmm, interesting note on the '90 Berettas with their line restrictions... I don't recall ever having a problem with my '90 Turbo 'Retta punching it and dumping the clutch, except for the complete loss of lane-control (torque-steer was unbelievable on that car, even with the original 3.1 Turbo, partly because -I suspect- the '90 282 tranny used that long exposed jackshaft with the separate outer carrier-bearing rather than the older "housed" jackshaft, once I switched that style tranny out for the older version the torque-steer was ALMOST manageable...) :D
I also went with AN fittings and updated the clutch-line on the '95 "Quad-6" LQ1 Turbo Z, but more for thermal protection and longevity protecting it from the turbo's hot-side... And that car still ignores the Stage 3 Ceramic-puck clutch if I don't play nice while the turbo is spooled... And that car is FWD... And that same clutch-disc worked okay in the GTU with a ~275 HP and well over 300 ft-lbs torque from the modified 3800 SC...
So you think the clutch is engaging 'slower' than it should with reduced fluid back-flow, or is it more likely the 8.1's ridiculous torque is just laughing at the drivetrain behind it?


1989 SuperCharged 3800 Srs-II (First)Six-Speed GTU
1990 Turbo 3.4 5-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 5-Speed Indy GTi (Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 LA1/L82 4T60E Z-26
1995 3.4 DOHC Turbo 5-Speed Z-26
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woody90gtz
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Re: Silverado build 3.0...or should I say 8.1

Post by woody90gtz »

Yeah, look in the stock clutch hose and see if there is a bulb in it. That's the restriction. I show it here: https://youtu.be/ZZ9orfV3LIU?t=418

And yes, slow engagement is exactly the problem. You could feel the clutch "snap" on the flywheel once I eliminated that. Took a little re-learning of the pedal to sorta catch each gear change smoothly.

The truck had a quick connect fitting on the slave hose and on the master cylinder so neither would leak fluid when you unhooked them. But the weird plunger stud assembly to make sure they both opened when hooked together I'm sure restricted flow. I did find AN adapter fittings for it (Ford style actually for the ZF6) but didn't need to buy them. I was able to scooch the clutch hose up the firewall and eliminate the quick connects altogether, so the hose goes directly from the master to slave now. Just gotta find the time to throw those crap tires back on and do some burnies. But you can feel the difference in the pedal like I could with the Beretta. So I'm pretty sure it's solved...for $0...without dropping the trans.

There will be videos. haha


91 "SS" - WOT 3400/5spd - 13.29@101.6 - World's fastest N/A FWD Beretta
96 "T56" LS/6spd/8.8 RWD swap - 13.45@104.7 lol
GEARHEAD dezign youtube
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Rettax3
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Joined: Mon Oct 22, 2012 3:34 pm

Re: Silverado build 3.0...or should I say 8.1

Post by Rettax3 »

That is great, glad it came together so easily. Yes, I remember clearly the 'disconnect' fitting on my '90 'Retta. It hasn't been on there for years -I had hobbled a copper line and soldered the fittings onto it for a 'temporary' fix, that was over a decade ago and it is still fine, so yeah, maybe SOMEDAY it will get a 'permanent' steel line... :lol:
I am trying to remember now if that 'temporary' line was made back when I replaced the old engine-mounts... I found controlling the car to be very difficult due to torque-steer, as mentioned, and had attributed it to removing the 'slop' from the drive-train... But yeah, if that fitting restricts back-flow, that might have been more what I was experiencing, IF that line was installed then... I really don't remember, but I don't THINK it is that old? That would make it over 15 years ago... :Search:


1989 SuperCharged 3800 Srs-II (First)Six-Speed GTU
1990 Turbo 3.4 5-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 5-Speed Indy GTi (Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 LA1/L82 4T60E Z-26
1995 3.4 DOHC Turbo 5-Speed Z-26
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woody90gtz
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Location: Walton, NY
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Re: Silverado build 3.0...or should I say 8.1

Post by woody90gtz »



91 "SS" - WOT 3400/5spd - 13.29@101.6 - World's fastest N/A FWD Beretta
96 "T56" LS/6spd/8.8 RWD swap - 13.45@104.7 lol
GEARHEAD dezign youtube
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woody90gtz
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Posts: 4698
Joined: Thu Jul 11, 2002 8:45 pm
Location: Walton, NY
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Re: Silverado build 3.0...or should I say 8.1

Post by woody90gtz »

Haven't done any modifications to the truck for quite a while until February. Then I did some body mods to the bumper, cab & box... Insurance is being a total nightmare too, wanting to total it, so I'm in the process of fighting that. I did fix the bumper so now it's looking reasonable again...but we'll have to see where this story goes.
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https://www.youtube.com/watch?v=4MvKT2c4GEk
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91 "SS" - WOT 3400/5spd - 13.29@101.6 - World's fastest N/A FWD Beretta
96 "T56" LS/6spd/8.8 RWD swap - 13.45@104.7 lol
GEARHEAD dezign youtube
User avatar
woody90gtz
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Posts: 4698
Joined: Thu Jul 11, 2002 8:45 pm
Location: Walton, NY
Contact:

Re: Silverado build 3.0...or should I say 8.1

Post by woody90gtz »

These are the first headlights I've seen on Amazon in a while that I actually like. Right out of the box they're pretty cool, but I'm going to modify them and make them better.

I had some decent looking ones that got all yellowed and brittle over a few years. And i tried out some stock housings that looked really good, but the light output with my LED 9005 and 9006 was pretty poor (I think due to the diffuser in the lenses).
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So I picked up these Amazon jobs that (to me) look modern but not high-schooly.
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Soon, I'll rewire the signals to be full-time amber as the DRL and tint the housings like I've done with all my other stuff. That will disable the sequential turn, but I'll make both 3157 bulbs flash for turn.
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What do you think? More info on my youtube.
https://youtu.be/zCZ5Yg718VI


91 "SS" - WOT 3400/5spd - 13.29@101.6 - World's fastest N/A FWD Beretta
96 "T56" LS/6spd/8.8 RWD swap - 13.45@104.7 lol
GEARHEAD dezign youtube
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