Transmissions and Drivetrain Need help with your trans? Problems with your axle?

big slam with stall??? or is something broken?

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Old Jul 9, 2011 | 09:05 AM
  #1  
89fbrestor's Avatar
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From: midland michigan
Car: currently 91 camaro
Engine: soon to be 350 turbo
Transmission: soon to be 4l80e
Axle/Gears: 99 ss rear end with richmond 4:11's
big slam with stall??? or is something broken?

does a stall torque converter slam when you nail the throttle? i have a 2400-2600 stall mated to a 700r4 and when i nailed it it hit hard. iv never driven a car with a stall so i dont know if this is normal.
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Old Jul 9, 2011 | 09:18 AM
  #2  
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: big slam with stall??? or is something broken?

All converters stall including a factory one. Below the stall speed, the converter just slips. A higher stall converter just allows the engine to quickly get into it's powerband when you "nail it hard" for better performance. Too high a stall speed can be just as bad as too low.

Read these
http://www.hardtail.com/techtips/torqueconverters.html
http://www.hardtail.com/techtips/sel...converter.html
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Old Jul 9, 2011 | 09:27 AM
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TTOP350's Avatar
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: big slam with stall??? or is something broken?

Slam as in a bang like a broken trans mount or slam like rev then spin the tires?
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Old Jul 9, 2011 | 12:45 PM
  #4  
89fbrestor's Avatar
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Joined: Mar 2007
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From: midland michigan
Car: currently 91 camaro
Engine: soon to be 350 turbo
Transmission: soon to be 4l80e
Axle/Gears: 99 ss rear end with richmond 4:11's
Re: big slam with stall??? or is something broken?

more like a bang. i think i'll put it up on jacks and check it out tonight. i just got this care running and maybe i missed a bolt or something.
Attached Thumbnails big slam with stall??? or is something broken?-sam_1256.jpg  
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Old Jul 16, 2011 | 08:35 AM
  #5  
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From: portland, michigan
Car: 85 iroc-z28
Engine: 049 headed bbc 4?? C.I.D
Transmission: T56
Axle/Gears: 3:73 posi
Re: big slam with stall??? or is something broken?

deff check the trans mount. i had the same problem it was the tranny lifting up and hitting the trans tunnel. also great looking car saw it on craigslist the other day. wanna paint mine? lol
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Old Jul 16, 2011 | 09:20 AM
  #6  
89fbrestor's Avatar
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Joined: Mar 2007
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From: midland michigan
Car: currently 91 camaro
Engine: soon to be 350 turbo
Transmission: soon to be 4l80e
Axle/Gears: 99 ss rear end with richmond 4:11's
Re: big slam with stall??? or is something broken?

lol sure bring it over. ya iv put it on craigslist a few times to see what i might get offered for it... never anything close to what i have in to this camaro so i'll probably just finish up the few things that are left and drive it. where are you located? i'm in hope(by midland) feel free to head my way sometime.
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Old Jul 16, 2011 | 10:15 AM
  #7  
85z28kid's Avatar
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From: portland, michigan
Car: 85 iroc-z28
Engine: 049 headed bbc 4?? C.I.D
Transmission: T56
Axle/Gears: 3:73 posi
Re: big slam with stall??? or is something broken?

i live in portland down my lansing. i hear you about not getting what you have into it to build a car right it takes a lot of money and people dont understand that lol. we'll have to meet up when i get my turbo 400 figured out might just swap in a 5 speed for fun since if bought a full drag car now and yes its a third gen lol. maybe we'll do something with paint this winter if your serious
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Old Jul 16, 2011 | 11:14 AM
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89fbrestor's Avatar
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Posts: 807
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From: midland michigan
Car: currently 91 camaro
Engine: soon to be 350 turbo
Transmission: soon to be 4l80e
Axle/Gears: 99 ss rear end with richmond 4:11's
Re: big slam with stall??? or is something broken?

sounds good, keep in touch.
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Old Jul 16, 2011 | 11:48 AM
  #9  
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From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: big slam with stall??? or is something broken?

A built trans with a firm kit, will kick like a muel when it shifts at or above stall speed.

I become weightless for a sec when mine hits on WOT shift, as the car lurches forward you seem to float in the seat for a sec.
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Old Jul 16, 2011 | 11:59 AM
  #10  
89fbrestor's Avatar
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Joined: Mar 2007
Posts: 807
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From: midland michigan
Car: currently 91 camaro
Engine: soon to be 350 turbo
Transmission: soon to be 4l80e
Axle/Gears: 99 ss rear end with richmond 4:11's
Re: big slam with stall??? or is something broken?

thanks gumpy. ya i got under there and tighten up a few bolts there were a little loose and its doesn't do it as much. i think it was a combination of both. when this car launches it likes to let me know lol
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