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10-24-2004, 02:10 AM
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#1 |
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Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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installing a stock tach with H.E.I.
ok. i hear tell that a stock tach won't work with a hei because of the higher voltage!!!!!!
be that it may !!!!! here's what i would like to do....... install a resistor in line on the 12 volt wire feeding my TACH from the hei....so i can run a stock tach...... this is the resistor i would like to use....... MDS PN 8214  restated question.....thanks guy's...... Last edited by rage'nrat638; 10-24-2004 at 02:26 AM. |
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10-24-2004, 02:13 AM
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#2 |
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Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Kinda defeats the point of installing a high energy ignition if you ask me... I'd put the voltage regulator between the tach and HEI if possible...
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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10-24-2004, 02:17 AM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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The tach will work with the HEI from what i understand.
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10-24-2004, 02:21 AM
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#4 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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mark that hei needs the full 12 volts to work properly you cannot run it on the 9 volts after that resister
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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10-24-2004, 02:22 AM
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#5 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Works just fine for the one I have installed.
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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10-24-2004, 02:24 AM
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#6 |
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Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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Ok I Wanted To Say Putting The Resistor Inline With The Stock Tach .....
not The Hei |
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10-24-2004, 02:28 AM
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#7 | |
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Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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Quote:
so your running a stock tach....with HEI !!!!!!!! well thats great.....if i am understanding you correctly...... i just don't want to smoke it.... |
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10-24-2004, 02:33 AM
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#8 |
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Registered User
Join Date: May 2000
Location: Storm Lake, Ia
Posts: 1,449
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3 of my trucks have stock tachs and HEI
no problems
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10-24-2004, 02:38 AM
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#9 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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i would tend to think a resister between the hei and tach would screw up the tach signal and make it read improperly
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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10-24-2004, 05:44 AM
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#10 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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We have been running stock tachs with HEI on (11) vehicles, (7 trucks and 4 cars) for years with no problems. My son sold his 71 Chevelle which has the stock tach/HEI setup and it was the oldest installation that we had, (14 years and still working).
Jim |
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10-24-2004, 08:01 AM
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#11 |
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Registered User
Join Date: Oct 2004
Location: saskatoon, planet earth
Posts: 694
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So. If I have a stock tach, and HEI, will it work? I'm Canadian you know, we're on the metric system here.
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10-24-2004, 08:27 AM
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#12 |
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CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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Thats why GM put the tach terminal on an HEI....so they wouldn't have to come up with a different tach for the millions of vehicles that have them....look at any vehicle in 74 and then in 75 after they changed to HEI....same tach
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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10-24-2004, 09:45 AM
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#13 |
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Just like to part out trucks!!
Join Date: Nov 2001
Location: Meriden, Ks-North of Topeka 10 miles
Posts: 27,396
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My 72 had a HEI and I put in a stocl tach and worked great!
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67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure" |
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10-24-2004, 11:01 AM
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#14 |
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Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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You got yourself a hold of some darn bull crap info....Stock dash with stock Tach works fine with an HEI dist. No resistor, no nothing.....just the wire to hooooook it up.
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Alex 1971 Lil' Red 350 SBC 700R4 |
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10-24-2004, 12:26 PM
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#15 |
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Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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thank you....thank you....thank you.....
will i can proceed with the monster garage 69 tach project  installing a vacuum gauge into this set-up as well...all hole's will be filled... with useful motoring info.... i can't wait....need ot order a new dash dezal.....i am in.. thanks for the help and info guy's |
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