F-2 Advice?

[boostedNova]

Hi guys, I'm new to the centrifugal supercharing concept and would apprieciate some advice. First, I have an existing MSD digital-6 box - can this be used in conjunction with another MSD component to address timing requirements effectively? What are some reccomended ignition set ups, assuming my digital-6 will not work?

My current set up is a 588BBC with AFR CNC 315 heads and 9.3 to 1 static compression. The camshaft was purchased from Steve Morris which he said would make 1600 HP @ around 20lbs of boost (non intercooled 114RON Fuel). I worked closely with Steve on the build up and made neccesary parts selections i.e. callies magnum crank, jessel belt drive, cometic gaskets, oliver rods, Dart Big M block/billet main caps, etc... My existing pullies are a 54 and 70 tooth, how much boost do you believe this will produce? I also purchased the CSU Dual needle and seat 850CFM carb and there high flow hat. Getting ready to dyno this beast and still need the fuel pump/regulator and of course ignition components, looking for some advice, thanks in advance

[Ron Clevenger]

Steve is a great guy to work with. You should have no problems getting to the 1600hp level. Predicting the blower pressure can be a little more difficult within reason. That will be affected by the engines ability to process the air through it. You can have high boost and so-so power or you can have lower boost and make a ton of power. The blower pressure is related to resistance it see's. So don't be to concerned about that at this point.
As far as ignitions,.....gas is more forgiving in relation to ignition total output. So your MSD Digital 6 may be Ok. It puts out about 105-115 Millijoules to the spark plug which millijoules is a apples to apples comparison of energy delivered to the plug. I personally run a Digital 7 which delivers about 190 millijoules and is effective at 32 psi and MSD says should be OK up to 40 psi.

But!....if I was out shopping for an ignition system today I would purchase the MSD 10 Plus unit which puts out a whopping 700 millijoules to the plug. The only ignition on the market today that is higher is the MSD 44 Pro Mag at 950 millijoules. By comparison the MSD 12 mag puts out 300.

These are all rated with the appropriate coils of course.

Does that help?

Blessings...........Ron Clevenger.

[68Bird]

I'm running a Digital 6 right now. I spoke to a MSD tech a while back and he said there is a boost retard box you can get to work with the Digital 6, don't recall which one though and it was around $300 if I remember. If I were you, I'd trade up for a 7531 digital 7 box. Thats what I'm doing very soon. Mainly so I can run more timing down low and pull based on boost. Tons of other features though too. Sounds like your going to have a sweet combo there. Post your dyno results when you get it done please.

Oh, for what it's worth, I have 70 / 56 pullies and it makes 15psi at around 6000rpm. Thats with CNC ported Canfield 335 heads.

Craig

[Mike Coffey]

Hi guys, I'm new to the centrifugal supercharing concept and would apprieciate some advice. First, I have an existing MSD digital-6 box - can this be used in conjunction with another MSD component to address timing requirements effectively? What are some reccomended ignition set ups, assuming my digital-6 will not work?

My current set up is a 588BBC with AFR CNC 315 heads and 9.3 to 1 static compression. The camshaft was purchased from Steve Morris which he said would make 1600 HP @ around 20lbs of boost (non intercooled 114RON Fuel). I worked closely with Steve on the build up and made neccesary parts selections i.e. callies magnum crank, jessel belt drive, cometic gaskets, oliver rods, Dart Big M block/billet main caps, etc... My existing pullies are a 54 and 70 tooth, how much boost do you believe this will produce? I also purchased the CSU Dual needle and seat 850CFM carb and there high flow hat. Getting ready to dyno this beast and still need the fuel pump/regulator and of course ignition components, looking for some advice, thanks in advanceI ran a 66 tooth on the crank and 54 tooth on the blower and made around 21 to 22 pounds of boost at 7200 rpm.
CSU sells Product Engineering fuel pumps and boost sensitive regulators and they are top notch! Powski and I both run CSU carbs and Product Engineering fuel systems and they both work great for a high end race car like Powski's, and a street car like mine.
E-bay your digital-6 and buy a MSD PROGRAMMABLE DIGITAL 7-PLUS part no. 7531. To get the most out of your motor you NEED to be able to control your boost and timming! I can help you out with programming and percentage rates if you want. PM and I will give you my number.
Good luck!:cool:
COFFEY

[Mike Coffey]

I'm running a Digital 6 right now. I spoke to a MSD tech a while back and he said there is a boost retard box you can get to work with the Digital 6, don't recall which one though and it was around $300 if I remember. If I were you, I'd trade up for a 7531 digital 7 box. Thats what I'm doing very soon. Mainly so I can run more timing down low and pull based on boost. Tons of other features though too. Sounds like your going to have a sweet combo there. Post your dyno results when you get it done please.

Oh, for what it's worth, I have 70 / 56 pullies and it makes 15psi at around 6000rpm. Thats with CNC ported Canfield 335 heads.

CraigX2

[MAYHEW]

I ran a 70 tooth on the crank and 54 tooth on the blower and made around 21 to 22 pounds of boost at 7200 rpm.
CSU sells Product Engineering fuel pumps and boost sensitive regulators and they are top notch! Powski and I both run CSU carbs and Product Engineering fuel systems and they both work great for a high end race car like Powski's, and a street car like mine.
E-bay your digital-6 and buy a MSD PROGRAMMABLE DIGITAL 7-PLUS part no. 7531. To get the most out of your motor you NEED to be able to control your boost and timming! I can help you out with programming and percentage rates if you want. PM and I will give you my number.
Good luck!:cool:
COFFEY
What do think about the msd 7535 box

[68Bird]

The 7535 is good for boost, but if you're gonna spend the money, spend a little more and get the 7531. It has all the features of the 7535 plus data logging and slew rev limiter. It's worth the extra coin imo.

Craig

[Mike Coffey]

The 7535 is good for boost, but if you're gonna spend the money, spend a little more and get the 7531. It has all the features of the 7535 plus data logging and slew rev limiter. It's worth the extra coin imo.

CraigI totally agree with 68Bird. Even just the data logging is worth the extra money. It helped me out big time with my tunning and driving!
COFFEY

[boostedNova]

What a super site, again thanks for all the knowledge. I have some more uncertainties with my build up. What size header tube/collector do you reccomend for maximum power? What are you guys using for air/fuel meetering devices? Cheers

[Mike Coffey]

PM Me.
COFFEY

[Flex]

i'd have to back that up as well 7531.

[68Bird]

What a super site, again thanks for all the knowledge. I have some more uncertainties with my build up. What size header tube/collector do you reccomend for maximum power? What are you guys using for air/fuel meetering devices? Cheers

I'm running 2-1/8" headers x 3.5" collectors on my 498 which I think are leaving power on the table. I have a set of 2-1/4" x 4" ready to go on but I have to convert to a front rack first for them to fit. I *THINK* the theory on a blown motor is go as big as you can on the headers just to get the exhaust out. Don't have to worry about scavenging and stuff like you do on a N/A motor, but I could be wrong. You'd want 2-1/4" bare min. maybe 2-3/8" depending on how much HP you plan to make. Did you ask Morris?, he ought to know what'd be right for you.

I also use a Dynojet Wideband Commander for A/F monitoring. Lots of people use the Innovate LM-1 though too.

Craig

[Jake]

I'm running 2-1/8" headers x 3.5" collectors on my 498 which I think are leaving power on the table. I have a set of 2-1/4" x 4" ready to go on but I have to convert to a front rack first for them to fit. I *THINK* the theory on a blown motor is go as big as you can on the headers just to get the exhaust out. Don't have to worry about scavenging and stuff like you do on a N/A motor, but I could be wrong. You'd want 2-1/4" bare min. maybe 2-3/8" depending on how much HP you plan to make. Did you ask Morris?, he ought to know what'd be right for you.

I also use a Dynojet Wideband Commander for A/F monitoring. Lots of people use the Innovate LM-1 though too.

Craig

2 1/2" primary.;)

[F3NOVA]

2 1/2 primary 5" collectors. 540ci bbc w/ F3