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Junk Yard superchargers 3800- 1998, 1999 by Lou6t4gto
Started on: 06-28-2013 02:04 PM
Replies: 4 (273 views)
Last post by: 86GTFastback on 06-30-2013 11:50 AM
Lou6t4gto
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Report this Post06-28-2013 02:04 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
there are 2 3800 SC's in the boneyard. I spun the superchargers, and 1 made a sound like a" tornado" (whirring sound), the other spun smooth and "quiet". Mine spins smooth an " quiet". The one making the whirring sound "felt" Real Smooth. Am I seeing 1 good one and 2 bad ones? or 2 good ones and 1 bad one ? How do you tell? The couplers seem good, the bearings seem good, the one making the "whirring sound" sort of felt like it was "drawing " more air,(like it was creating a vacuum with the throttle body shut) For $50, I'd like to grab it, if it's Not a "bad one." Thanks
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DimeMachine
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Report this Post06-29-2013 11:17 AM Click Here to See the Profile for DimeMachineSend a Private Message to DimeMachineEdit/Delete MessageReply w/QuoteDirect Link to This Post
Whatever you end up doing when you take it off, look at the rotors and the housing. If there is a lot of scoring then it is junk.

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84 NB, 3800SC, E-85, VS Cam, 3.0 Pulley, 4T65E-HD, HP Tuners, AEM Wideband, Regal GS Gauges, S-10 Brake Booster. 1/4 mile -12.05 at 111.7mph

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sco77
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Report this Post06-29-2013 05:26 PM Click Here to See the Profile for sco77Click Here to Email sco77Send a Private Message to sco77Edit/Delete MessageReply w/QuoteDirect Link to This Post
Are you comparing them when spinning pulley when on engine or off engine? If on engine it will spin different if the cars injectors were removed or if the engine is filled with water (lol, which you wouldn't want that SC anyway).

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86 Fiero GT 4spd - (pending L67 swap: VS cam, GenV) Build Progress eta: 8/13
98 GTP - Some mods

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Lou6t4gto
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Report this Post06-29-2013 07:06 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
comparing, well, mines off, the one in the yard is "ON". the one on the car seems to have some drag, not bad bearings drag, but like it is "pressurizing". (Know what I mean?) I just hate to see it get "squashed" when it can be had for $50 ! I'm low on cash or I'd grab it for sure. they do a money back warrantee if it's bad.
If anyone LOCAL to Ocala fla is reading this, there are 2 -3800 SC engines in GAVIN's right now ($250 complete warranteed engines) 1 in a park ave 1999, 1 in a 98 Riviera.
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86GTFastback
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Report this Post06-30-2013 11:50 AM Click Here to See the Profile for 86GTFastbackSend a Private Message to 86GTFastbackEdit/Delete MessageReply w/QuoteDirect Link to This Post
This could be the difference between one having the bbv closed or open (little arm towards the throttle body), I'd check that too as that would make them feel different if one is "pressurizing" and the others aren't.
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