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#1 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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tranny slipping
since I put the supercharger on the 350 it has been slipping right before it shifts. It's like it's trying to do a stock smooth shift. Is a shift kit going to get rid of this or is it not supposed to do this at all, it leaves the line hard just slips when it shifts. The fluid smells good and not burnt so I dont think it's going out just think it needs adjusted or a shift kit
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#2 |
Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: tranny slipping
a shift kit would help, if the fluid smells good and is still red than i would guess that its a difference in power
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-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME |
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#3 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: tranny slipping
Real hot rods have a clutch to go with that blower!
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#4 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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Re: tranny slipping
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#5 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: tranny slipping
No, thats not it.....Ill do a little diggin & see if I can find the mechanical modulator. crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#6 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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Re: tranny slipping
http://www.turbobuick.com/forums/tra...d-i-think.html
thanks crazy, you got me started in the hunt and i found what i was looking for they dont make the modulink thing anymore but the simple easy way is to put a check valve inline with your moudulator with a hole on the modulator side to make a leak under boost kinda a neat idea and cheap so I will give it a go
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#7 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: tranny slipping
Let us all know how things work out
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#8 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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Re: tranny slipping
I think I'm going to go with the transgo shift kit just for firmer shifts to scare my passangers even more than the whine, people seem to think somthing has gone teribly wrong when you get on it and they hear the blower and ask whats that noise? did you just break it?
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#9 | |
Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: tranny slipping
Quote:
good luck with the shift kit
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-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME Last edited by GREASEMONKEY72; 03-24-2008 at 08:43 AM. |
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#10 | |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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Re: tranny slipping
Quote:
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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#11 |
Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
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Re: tranny slipping
I think it is probably the vac problem as blowers have no vac they create boost. a mechanical shift should do it
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#12 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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Re: tranny slipping
it makes vacum under normal driving and works fine under normal driving but when you tap the fun pedal hard you get 6psi of fun and it shifts funny.
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#13 |
Registered User
Join Date: Feb 2007
Location: MI
Posts: 214
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Re: tranny slipping
I am doing the same build on a 4wd 427 Big block ,TH 350 with a small blower.
Where is your vacum source coming from for your vacum modulator. Is the line coming form under carb or plummed into intake. What is your minimum vacum under wot. |
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#14 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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Re: tranny slipping
Well I forgot to consider the fact that I have the vacum sourced to the base of the carb and it's not getting any boost it's only getting vacum. But it never goes below 5psi of vacum? I dont know what it should read without a blower so Im stumped is it supposed to drop off to zero or is it normal for there to be vacum under wot? I'm still getting the shift kit and will probly have that in before the end of the week but I dont know if thats going to fix or change anything
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#15 |
Registered User
Join Date: Feb 2008
Location: Bartonville IL
Posts: 415
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Re: tranny slipping
Got my **** kit in last night and I was greeted this morning with a down pour so I didnt get to try it out and it looks like it will rain all weekend. THIS SUCKS
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