I was wondering if it was necessary to use the MSD 6AL if our cars/trucks already have a built in rev limiter?

thanks
nate

 

if you already have a rev limiter the 6al will only give you a choosable range on where you want to limit at, 6a would most likely be your ticket to great spark, i have the 6AL in my 88 firebird, and i absolutly love it, it makes my car run much better, and 6a does the same, but it doesnt have the limiter thats it!!!

 

if you have an auto you don't need the rev limiter.

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-Tas
'89 Formula WS.6

 

Save your money, unless you are reving past 6000 rpm's it will do you no good.Yeah, yeah, I've heard all the wonder stories about what it can do, but the truth is unless you have 12.5 to 1 or higher anything will light your spark. It's when cylinder pressures reach great hights that you need something hotter to the fire the plugs.
Believe it or not!!!
Oh, if you want a rev limiter get in to burnning your own proms.

------------------
Chronologically challenged. But still kicking!
'92 CAMARO RS
305 TBI 5/spd (now TPI)
B4C Alt.
Cam change:TRW 198/210 ,450/.460 114 LSA
Stock TBI manifolds
'85 IROC Ex.
14.94-92.00 mph
SPDC base and "350" Vortec coming soon!
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+/3200lbs.
SoCal Thirdgen F-Bodies



[This message has been edited by Dyno Don (edited October 25, 2001).]

 

I dunno, I definitley noticed better mid range RPM pick up with the MSD 6A and 8.5mm wires over the shot to hell stock ones

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1992 Camaro RS (Auto) 5.0L TBI
-
Performance mods
NOS (125 HP shot), Dynomax cat-back exhaust, Hedman headers, no cat, custom high beam delete ram air w/ K&N, MSD 6A ignition, MSD 8.5mm plug wires, LT1 camshaft
Soon to be installed:
Edelbrock Perfomer TBI intake, B & M 2200 RPM stall torque converter, Trans Go shift kit, World Products Torquer heads, Ed Wright Fast Chip

Audio
Sony Xplod CDX-M610 head unit, Pioneer 2-way 4x6 front speakers, Pioneer 3-way 6x9 rear speakers, 12 inch Pioneer VCCS PRO subwoofer, QLogic sealed box, Kicker ZR360 amplifier, Lightning Audio 1 farad capacitor

Other
Macewen White Faced Gauges/Shift overlay, A-pillar gauges (Phantom oil pressure, Air/Fuel), 180* thermostat, Window Tint, chrome valve covers, xenon headlights

 

Do yourself a favor get rid of those wires and get yourself a set of Borg-Warner Nascar Select 8mm. If you grab on to one of those MSD wires it will knock you on you on your you-know-what, imagine how much energy you must be losing with the wires laying all over the metal engine if it will shock you like that. The resistance of one of those is about 8k-10,000 ohms The Borg Warners about 1.5k-2000 ohms. And that's one you can test for yourself, try it.



------------------
Chronologically challenged. But still kicking!
'92 CAMARO RS
305 TBI 5/spd (now TPI)
B4C Alt.
Cam change:TRW 198/210 ,450/.460 114 LSA
Stock TBI manifolds
'85 IROC Ex.
14.94-92.00 mph
SPDC base and "350" Vortec coming soon!
'69 camaro-BB/Lenco,1050 dominators, /Pump Gas/no drugs 8.97-150+/3200lbs.
SoCal Thirdgen F-Bodies

 

Dan, where is the rev limiter in a TBI ecm
We don't have one. Oh yeah, and I've heard the GM rev limiter is pretty nasty as far as how it goes about limiting the rpms.
MSD is great if you have a high performance vehicle but it can also help on a lower compression car. You can increase gap and that's a good thing. I agree though, don't waste your money on an MSD box, money better spent towards a larger coil, better wires, and a nice stereo system

 

Uh, your right Jon, it's just a speed limiter. Sorry, my Bad.