supercharger upgrade(s) advice needed

knucklebuster · 12-30-2000, 01:58 AM

95 GT 5.0 w/powerdyne (11 psi), 255LPH fuel pump, 3" pipes, all else stock. what else do i need to upgrade to take full advantage of the supercharger? i'm considering larger injectors (but how big?) also, do i need to upgrade the computer chip in any way? or anything else i haven't mentioned? please advise what you think. thanks.

12-30-2000, 03:41 AM

Get yourself a MSD ignition box with rev control.(the factory rev limiter shuts off fuel to the injectors at a given rpm,which is not good in a blown application)

Know your fuel pressure,install a fuel pressure gauge.

Get at least 30# injectors,these will support what you have just fine.

Upgrade your mass-air meter,as the factory meter is very restrictive.This allows supercharger to work more effeciently.Also upgrade your exhaust system as your shoving in alot more air,so you want it to be able to exit easy as well.

------------------

Paxton Blown 87GT
Mustang..it's not just a car,it's an attitude

MDM · 12-31-2000, 01:34 PM

I agree with mustanguy. The MSD 6BTM is a good piece that has served me well for years. Multisparks with the timing retard with respect to boost pressure feature makes it worth the $300 or so it costs. The MSD will cut spark to alternating cylinders at the rev limit you set, which will keep you from going lean and make your motor last longer./

mustang17 · 12-31-2000, 04:46 PM

To take full advantage of the blower you need some heads and intake. Stock heads and intake a very restrictive for a blower with 11# of boost.

------------------
1995 GT Black sleeper
Edelbrock aluminum heads,Edelbrock aluminum intake,Edelbrock cam, 70mm TB,75mm pro-m mass air,Taylor wires, Underdrive pulleys,Equal length headers,K&N filter
Flowmaster cat-back, Eibach pro rate springs
lower control arms
3.73 rear gear New: Centerforce clutch,plan to remove a/c

89 ATI · 01-01-2001, 06:16 PM

When your Powerdyne breaks, go get yourself a real blower.

knucklebuster · 01-02-2001, 01:28 AM

thanks for the info. can anyone tell me how big a job it is to install the MSD6BTM type ignition setup? also the mass air upgrade? do these changes cause a need to change or update the eec-iv computer system, or are the compatible? please be patient, this is my first efi car and first supercharger i've ever had. thanks.

exgmguy · 01-02-2001, 10:24 PM

Adding any aftermarket heads and an intake along with a 70 mm throttle body and a larger mass air meter will likely net you 100 horsepower over the blower, not to mention taking a lot of strain off that intake charge.

(Imagine you trying to breath through a straw while running around the block....)

------------------
1988 Mustang GT

12.0 @ 121 on radials
S-trim Vortech sitting in a box!

12-30-2000, 01:58 AM	#1
knucklebuster Registered Member Join Date: Oct 2000 Location: wichita, ks, usa Posts: 10	supercharger upgrade(s) advice needed 95 GT 5.0 w/powerdyne (11 psi), 255LPH fuel pump, 3" pipes, all else stock. what else do i need to upgrade to take full advantage of the supercharger? i'm considering larger injectors (but how big?) also, do i need to upgrade the computer chip in any way? or anything else i haven't mentioned? please advise what you think. thanks.

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12-30-2000, 03:41 AM	#2
Mustanguy Guest Posts: n/a	Get yourself a MSD ignition box with rev control.(the factory rev limiter shuts off fuel to the injectors at a given rpm,which is not good in a blown application) Know your fuel pressure,install a fuel pressure gauge. Get at least 30# injectors,these will support what you have just fine. Upgrade your mass-air meter,as the factory meter is very restrictive.This allows supercharger to work more effeciently.Also upgrade your exhaust system as your shoving in alot more air,so you want it to be able to exit easy as well. ------------------ Paxton Blown 87GT Mustang..it's not just a car,it's an attitude

12-31-2000, 01:34 PM	#3
MDM Registered Member Join Date: Feb 2000 Location: Flemington, NJ USA Posts: 166	I agree with mustanguy. The MSD 6BTM is a good piece that has served me well for years. Multisparks with the timing retard with respect to boost pressure feature makes it worth the $300 or so it costs. The MSD will cut spark to alternating cylinders at the rev limit you set, which will keep you from going lean and make your motor last longer./

12-31-2000, 04:46 PM	#4
mustang17 Registered Member Join Date: Sep 2000 Location: Concord, MA, USA Posts: 264	To take full advantage of the blower you need some heads and intake. Stock heads and intake a very restrictive for a blower with 11# of boost. ------------------ 1995 GT Black sleeper Edelbrock aluminum heads,Edelbrock aluminum intake,Edelbrock cam, 70mm TB,75mm pro-m mass air,Taylor wires, Underdrive pulleys,Equal length headers,K&N filter Flowmaster cat-back, Eibach pro rate springs lower control arms 3.73 rear gear New: Centerforce clutch,plan to remove a/c

01-01-2001, 06:16 PM	#5
89 ATI Registered Member Join Date: Sep 2000 Location: Lafayette, Indiana Posts: 120	When your Powerdyne breaks, go get yourself a real blower.

01-02-2001, 01:28 AM	#6
knucklebuster Registered Member Join Date: Oct 2000 Location: wichita, ks, usa Posts: 10	thanks for the info. can anyone tell me how big a job it is to install the MSD6BTM type ignition setup? also the mass air upgrade? do these changes cause a need to change or update the eec-iv computer system, or are the compatible? please be patient, this is my first efi car and first supercharger i've ever had. thanks.

01-02-2001, 10:24 PM	#7
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	Adding any aftermarket heads and an intake along with a 70 mm throttle body and a larger mass air meter will likely net you 100 horsepower over the blower, not to mention taking a lot of strain off that intake charge. (Imagine you trying to breath through a straw while running around the block....) ------------------ 1988 Mustang GT 12.0 @ 121 on radials S-trim Vortech sitting in a box!