Do I need a MSD unit with rev limiter?--update

[AKcharger]

Summit has one for $160, thought it might be a good idea for my 470 stroker (since it's getting expensive) but on the other hand it's going to be mostly a street car...your opinions?

Thanks guys!

[Rolling_Thunder]

I tend to not run rev limiters on automatic cars...    not saying you couldn't use it, just that stick shift cars i think it is almost a necessity...   

[Ghoste]

I like having them on there, it's cheaper than bent stuff.

[AKcharger]

Does the MSD box simple take the place of the ECU or is it wired in series to the distributor?

[jg68]

Does the MSD box simple take the place of the ECU or is it wired in series to the distributor?

Yeah its fairly simple & will work with the MP dist., just FOLLOW the instructions & don't get in a hurry, it never hurts to run a limiter, even with an auto, if your driveshaft lets go on the line , hello 8000+ rpm, not good on the bearings, so for the extra $$$$ get one with the limiter.

[Steve P.]

Does the MSD box simple take the place of the ECU or is it wired in series to the distributor?

Yeah its fairly simple & will work with the MP dist., just FOLLOW the instructions & don't get in a hurry, it never hurts to run a limiter, even with an auto, if your driveshaft lets go on the line , hello 8000+ rpm, not good on the bearings, so for the extra $$$$ get one with the limiter.

  Better to be safe than sorry..... 

[Silver R/T]

doesnt make sense on auto car because your trans will shift sooner before you overrev it, unless you stuck it into one gear and trying to overrev. I have mallory on my Charger w/o one. It's up to you if you want one go ahead.

[Steve P.]

doesnt make sense on auto car because your trans will shift sooner before you overrev it, unless you stuck it into one gear and trying to overrev. I have mallory on my Charger w/o one. It's up to you if you want one go ahead.

Silver,,, anything can go wrong when you least expect it.  Bust a U-joint. Strip a ring gear. Tranny lets go. Rip the center out of a Cragar. (That happened to me).. Any of these can sent your RPM's through the roof..

Also, not everyone just puts the stick in the "D" position. Matter of fact, most of us don't when racing. I have a forward MANUAL shift valve body in my 727 TF. If you don't have a lock-out shifter or a ratcheting shifter it is easy to get overzealous and shift right into neutral. Without the chip it is easy to send the RPM's higher than the motor is built for... 

Also had a return spring fly off in a Camero once. Of course I didn't know it until I removed my foot from the GO pedal and it kept right on climbing..  Had that happened along with breaking a U-joint that 355 would have met it's GOD... 

Yes, I think you should go with the chip.....

[Runner]

id get one with a rev limiter espiecally on a street car. i dont have an issue at the track hitting the rev limiter becasue im on slicks and tend to hook up good but there have been the times when track prep was bad,  but on street tires i bang the rev limiter all the time it spins the tires hard  and your on the limiter beofre you know it.

[471_Magnum]

Here's another "yes" vote.

I'll be putting one on the GTX. I'll probably hide it under the dash somewhere. I'm not about to risk zinging this new motor on a missed shift.

[Charger-Bodie]

msd 6al will make youre car run better and with the rev limiter you will have insurance angainst overrevving the gine i think its a no brainer i will never have one without it. so yes msd that thing!!!

[OttawaCharger]

or if you want a black one, check out the Mopar Performance Ignition Box a MSD 6AL with Mopar's name on it. 

[Silver R/T]

Mallory makes same units for the 3/4 price of a MSD. Ive picked mine up on ebay a while ago.

[supserdave]

MSD will clean up the idle and help the throttle response. Dang good customer service to. We blew out a 6al on the race car, they took it back and exchanged it for a new one no questions asked. They said anything under 14 months and they will warranty it. Hard to find somebody that will guarantee a race part.

Did I mention the rev limiter is good to!

[AKcharger]

Thanks guys

Next question: Is the stock Electronic Distributor good enough or is it important to "upgrade"

[Charger-Bodie]

Thanks guys

Next question: Is the stock Electronic Distributor good enough or is it important to "upgrade"

i run a mopar perf elec , works good for me.

[Rolling_Thunder]

street car ?  i say a MP dizzy would be fine...      but some people swear by MSD

[firefighter3931]

The MP distributor is fine.....but the MSD dizzy looks really cool. 



Ron

[AKcharger]

OK guys, I have the ignition part taken car of now the cam

I called COMP and they suggested this, what do you think?
216-228 @50 degrees
112 Cam lob seperation
454 intake and 480 exhaust

Oh, I dropped all the internals off at the shop yesterday, they're just waiting on the cam to do the bearings and heads

Thanks

400/470 Cast Iron heads and exhaust with 6 pack

[Chryco Psycho]

a friend got stranded 250 miles from home with the MSD Stand alone dist system ... Yes MSD Will warranty it but not the tow bill 

[Ghoste]

Then again, Mopar Performance may not even warranty the part. 

[firefighter3931]

OK guys, I have the ignition part taken car of now the cam

I called COMP and they suggested this, what do you think?
216-228 @50 degrees
112 Cam lob seperation
454 intake and 480 exhaust

Oh, I dropped all the internals off at the shop yesterday, they're just waiting on the cam to do the bearings and heads

Thanks

400/470 Cast Iron heads and exhaust with 6 pack

That's a pretty mild cam for 470 cubes..... would make a good tow motor ! 

The Lunati 268* cam or an engle k56/k58 custom ground on a 112* lsa would be my choice. Either will make more power and lots of manifold vacuum for power brakes and easy tuning with the 6-pack. 

Either of these would work fine with a stock converter and 3.23/3.55 gears. 


Ron

[AKcharger]

Cam on order! here's the 470 kit before I dropped it off at the shop 

[471_Magnum]

I seem to recall a very similar looking pile of parts on my floor not so long ago.

[Rolling_Thunder]

Tuning a 6-pack...