Injection system

[slowdown]

So I've been looking on summits an jets sites at a retard set up for boost, but they all seem to say they need to be ran with msd ignition. Am I reading this wrong? I have the mp ignition an the orange box, will I have to switch ignitions to mad to get a retard system to work?
I've also been looking at the 1stage for low boost water methenal injection kit in case I have to switch. I'm only going to be running 5lbs boost but my comp may be a tad bit high. 9.5 maybe.

 

[Matts440]

Okay so you have the mp box same as a msd and the Orange box? If your running the mp box same as a msd then the Orange box isn't even needed. If your on just a factory ignition system it is always better to have the hotter spark especially in boosted engines, yes 5lbs isn't that much which is a good thing since your comp is a tad higher not much. The 9.5 comp is fine for boost you just can't go as high as say a 8.5:1 but it's a toss up, I knew guys on their srt4 with big turbo that ran 10:1 comp and kept boost down low and make good power or you can run lower comp 8:1, 8.5:1, 9:1 and go higher boost but make about the same power it just boils down to the tune. Meth is always a good thing keeps the intake charge and combustion chamber cooler thus making a little more power plus it takes your pump gas say 91 octane and makes it 116 which again better for boosted applications as well.

 

[slowdown]

Okay so you have the mp box same as a msd and the Orange box? If your running the mp box same as a msd then the Orange box isn't even needed. If your on just a factory ignition system it is always better to have the hotter spark especially in boosted engines, yes 5lbs isn't that much which is a good thing since your comp is a tad higher not much. The 9.5 comp is fine for boost you just can't go as high as say a 8.5:1 but it's a toss up, I knew guys on their srt4 with big turbo that ran 10:1 comp and kept boost down low and make good power or you can run lower comp 8:1, 8.5:1, 9:1 and go higher boost but make about the same power it just boils down to the tune. Meth is always a good thing keeps the intake charge and combustion chamber cooler thus making a little more power plus it takes your pump gas say 91 octane and makes it 116 which again better for boosted applications as well.

Yeah I meant mp distributor and orange box sorry. And I was typing on a little phone so I could'nt really read what I was writing. Thanks for the reply. So I'm thinking by your reply the meth/water injection is the way to go for now. I have'nt got it up and running yet as the super charger is still in transit according to the ups tracker. But I am hopeing to get this thing up and running without detenatioin and hopefully without problems.. Thank You.

 

[slowdown]

Just checked out the snow performance stage one injection system on the jegs site. I think i will order this one tomarrow. The charger may show up before the injection system, do you think I'll be alright getting it on and fire it up before I install the snow kit? Or should I just wait till everything shows up and install it all at once?

 

[Bill Dedman]

Just checked out the snow performance stage one injection system on the jegs site. I think i will order this one tomarrow. The charger may show up before the injection system, do you think I'll be alright getting it on and fire it up before I install the snow kit? Or should I just wait till everything shows up and install it all at once?

II think that any kind of intercooling is waste of time and money at 5 pounds of boost. It's generally accepted that under ten pounds, no intercooling is needed.

Check it out; I didn't make this up...

 

[Bill Dedman]

So I've been looking on summits an jets sites at a retard set up for boost, but they all seem to say they need to be ran with msd ignition. Am I reading this wrong? I have the mp ignition an the orange box, will I have to switch ignitions to mad to get a retard system to work?
I've also been looking at the 1stage for low boost water methenal injection kit in case I have to switch. I'm only going to be running 5lbs boost but my comp may be a tad bit high. 9.5 maybe.

THE msd BOOSTMASTER is one-piece stand-alone unit that does a couple of things; it replaces your orange/chrome box (is an gnition module) entirely, monitors your boost and retards your timing 1,2, or 3 degrees for every pound of boost it "sees" (the amount per pound of which is adjustable from the cockpit.) Up to a total retard of 15 degrees. You just have to buy a coil.

I use one on my Vortech-blown street-driven 360 and it works well.

Hope this helps.

 

[slowdown]

II think that any kind of intercooling is waste of time and money at 5 pounds of boost. It's generally accepted that under ten pounds, no intercooling is needed.

Check it out; I didn't make this up...

I was thinking more along the lines of the 9.5 compression and maybe upping the timing later. I agree 5 lbs don't seem like much, but some day more maybe.

 

[MiradaMegaCab]

The OP is running a Roots blower with a cam that has 110LSA. The overlap should keep the combustion chambers cool.
At 5PSI start tuning with the carb/ ignition you have. Keep the total timing at 28° for a safe start.
I'd bump the timing up to 30 or 32° max in small increments, listening for knock under load.
Learn how to tune the carb (idle, cruise, WOT) before adding W/M injection. Keep it simple.
With your 3.55 rear gears, you will be in and out of boost and I can't imagine you being under boost for extended periods of time.

 

[slowdown]

The OP is running a Roots blower with a cam that has 110LSA. The overlap should keep the combustion chambers cool.
At 5PSI start tuning with the carb/ ignition you have. Keep the total timing at 28° for a safe start.
I'd bump the timing up to 30 or 32° max in small increments, listening for knock under load.
Learn how to tune the carb (idle, cruise, WOT) before adding W/M injection. Keep it simple.
With your 3.55 rear gears, you will be in and out of boost and I can't imagine you being under boost for extended periods of time.

Thanks.