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#1
10-23-2002, 09:21 PM
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Im not really sure what it does I have just heard its good to add. Anybody familiar with these? List some pros and cons. Worth it for a street car? If I should get one what one should I get? Will it work with a HEI? Any info would be appreciated. Ive got a 70 GTO w 428, nice spot on firewall where ext. regulator used to be. Thanks again, you guys are great. [img]/infopop/emoticons/icon_wink.gif[/img]
 GR-RRR!
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 1970 GTO 458 CID .040 over 4 Bolt 428 Block, Forged Eagle 455 Crank, 295 CFM SD KRE D-Ports, SD Old Faithful HR Cam + Comp HR Lifters, PPR Maxx-lite rods, Racetec pistons, PRW 1.65 SS Rockers, 900CFM Holley HP TBI, Performer RPM, Hooker Super Comps, 3" X-Pipe into 2.5" mufflers/tailpipes, 2.75 1st TH400, Continental 13" Converter, 8.5" 3.08 Posi. Everything installed, fired up and tuning has begun! |
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#2
10-23-2002, 09:21 PM
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Im not really sure what it does I have just heard its good to add. Anybody familiar with these? List some pros and cons. Worth it for a street car? If I should get one what one should I get? Will it work with a HEI? Any info would be appreciated. Ive got a 70 GTO w 428, nice spot on firewall where ext. regulator used to be. Thanks again, you guys are great. [img]/infopop/emoticons/icon_wink.gif[/img]
GR-RRR!
__________________
1970 GTO 458 CID .040 over 4 Bolt 428 Block, Forged Eagle 455 Crank, 295 CFM SD KRE D-Ports, SD Old Faithful HR Cam + Comp HR Lifters, PPR Maxx-lite rods, Racetec pistons, PRW 1.65 SS Rockers, 900CFM Holley HP TBI, Performer RPM, Hooker Super Comps, 3" X-Pipe into 2.5" mufflers/tailpipes, 2.75 1st TH400, Continental 13" Converter, 8.5" 3.08 Posi. Everything installed, fired up and tuning has begun! |
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#3
10-23-2002, 09:29 PM
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If you are already running an HEI then there is no reason to waste your bucks on an HEI. You won't gain any HP or run any different. I do run the MSD stuff on my bracket car and am very happy with it. I think I would go just as fast with an HEI though. For a street car and you already have a great ignition, why?
Tim C 65 LeMans 11.06@121
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Tim Corcoran |
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#4
10-23-2002, 10:36 PM
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The MSD ignition boxes are compatable with your HEI distributor. The box actually takes the place functionally of the ignition module located inside your distributor. The only con of the MSD is the cost. If you've got the extra money laying around and want a new toy, then that's not really a con anyway. By no means is it necessary for a street car, but they do make a difference. Basically, an MSD box will fire the plug multiple times instead of once under 3,000 RPM. Over 3,000 RPM, the box generates one long, hot spark that lasts for 20 degrees of crank rotation. Typical benefits include easier starting, slightly better fuel economy, lower emissions, and usually a small increase in power output. If you were going to purchase one, I'd go with the 6A ignition box, #6200, or, if you'd like a rev limiter also, the 6AL, which is #6420. It's not going to make a 20 or 30 horsepower difference, but speaking from personal experience, I've noticed a performance increase on every vehicle I've installed an MSD ignition box into. It certainly can't hurt to have one! [img]/infopop/emoticons/icon_wink.gif[/img]
"My car would be fast if it had an engine, transmission, and rear axle in it."
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"Q: What's better than winning a gold medal in the Special Olympics? A: Not being retarded." |
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#5
10-23-2002, 10:57 PM
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Thanks for the replies guys, I may look into it further. Its not a huge issue, just my firewall looks bare in that spot and would be perfect for something [img]/infopop/emoticons/icon_smile.gif[/img]. So maybe when I get some new toy money together again, Ill give one a try.
GR-RRR!
__________________
1970 GTO 458 CID .040 over 4 Bolt 428 Block, Forged Eagle 455 Crank, 295 CFM SD KRE D-Ports, SD Old Faithful HR Cam + Comp HR Lifters, PPR Maxx-lite rods, Racetec pistons, PRW 1.65 SS Rockers, 900CFM Holley HP TBI, Performer RPM, Hooker Super Comps, 3" X-Pipe into 2.5" mufflers/tailpipes, 2.75 1st TH400, Continental 13" Converter, 8.5" 3.08 Posi. Everything installed, fired up and tuning has begun! |
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#6
10-24-2002, 06:11 AM
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don't waste your money for this. ran low 10's for years with the stock hei in a street car. buy some headers, cam, intake, head porting, etc. and help the performance of your car.
wanna race? gimmie the move--
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 1963 Cat SD Clone (old school) streeter 1964 GTO post coupe, tripower, 4speed (build) 1965 GTO 389 tripower, 4 speed, driver 1966 GTO dragcar 1966 GTO Ragtop 1969 Tempest ET clone street/strip 1969 GTO Judge RA lll, auto 1969 GTO limelight Conv. 4speed go and show (sold) 1970 GP SSJ 1970 GTO barn find..TLB…390 horse?….yeh, 390 1972 GTO 455 HO, 4 speed, (build) 1973 Grand Safari wagon, 700hp stoplight sleeper 525ci DCI & 609ci LM V head builds |
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#7
10-24-2002, 08:23 AM
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THe cost of the 6AL box(around $160 i think) is very cheap insurance.It also DOES help with starting,idleing and emissions
Stupidity should be painfull |
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#8
10-24-2002, 08:32 AM
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What's your thoughts about the M.S.D. blaster ignition?
I realize the 6a or 6al are better units. But would there be any benefit with a blaster versus not having any thing at all?
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"Bye" "Bye" Rice Boy!!! |
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#9
10-24-2002, 09:43 AM
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I've used an MSD 6A with the external rev limiter on my Pontiac since I modified the engine, so I really can't make any comparisons to stock. But I know the rev limiter has kept me under 6000 lots of times.
I put a 6AL, with the built-in rev limiter, on an '87 Caprice police car that was my daily driver for awhile. I noticed better throttle response, smoother idle, and easier starting with the MSD compared to the stock HEI with the external coil. So, if you have the money and don't need it for something else, I'd recommend the MSD. Like many here have said, it may not make you faster, but a rev limiter is good insurance. |
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#10
10-24-2002, 10:17 AM
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Seek out such MSD boxes if you are looking for increased ignition functionality such as:
reduced Advance upon cranking for startup. precise REV-limiter with sequenced spark cutout. Software programmable timing curve. Half-Inch Stud "11.00/123MPH/1.50 60foot/29.5"/4.10:1/10"/472 #48/Flat HYD/DualQuad/Wenzler/3250Lbs 12.00/112MPH/1.61 60foot/26"/3.31:1/10"/472 #48/FlatHYD/Q-Jet/Torker/3650Lbs"
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12.24/111.6MPH/1.76 60'/28"/3.54:1/SP-TH400/469 R96A/236-244-112LC/1050&TorkerI//3850Lbs//15MPG/89oct Sold 2003: 12.00/112MPH/1.61 60'/26"x3.31:1/10"/469 #48/245-255-110LSA/Q-Jet-Torker/3650Lbs//18MPG 94oct Sold 1994: 11.00/123MPH/1.50 60'/29.5"x4.10:1/10"/469 #48/245-255-110LSA/Dual600s-Wenzler/3250Lbs//94oct |
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