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Old Mar 28, 2002 | 11:19 AM
  #1  
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
StealthRam MPFI or SuperRam??

Hey,

I have been looking around at after market EFI kits and I think these are some of the best I can find for a high proformance daily driver. I plan on using a blower.

Could you give me any input on what you think about them, or even you know of something better,

thanks

:hail: :hail: :hail:
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Old Mar 28, 2002 | 11:20 AM
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
StealthRam MPFI Systems

=)
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Old Mar 28, 2002 | 12:03 PM
  #3  
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Are you doing this before or after the 6-speed, abs, suicide doors, and backwards hood?

In any event, if you're going to use a blower, I'd use something with a smaller plenum volume than the SR, because the less air that you have to pressurize, the more ATMs of pressure you'll have in the cyllinders. Actually, when you're using forced induction, I'm not sure how much advantage (if any) you'll see over a good old LTR setup.
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Old Mar 28, 2002 | 01:21 PM
  #4  
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
=)

You forgot the tube frame front clip
:lala: :lala: :lala: :lala:
I am just throwing out what I am thinking. Chances of me doing everything is very slim but I still have questions

thanks for your subport :hail: :hail: :hail:
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Old Mar 28, 2002 | 01:24 PM
  #5  
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
I desided not do to the abs, even if I did have the money

I thought ABS always improoved your braking but someone said it did not so, I'll take their word for it and like the dream go

thanks again

:hail: :hail: :hail:
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Old Mar 28, 2002 | 02:09 PM
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From: Cherry Hill, NJ
Car: 92 Trans Am 'Vert
Engine: 305 TPI
Transmission: 5 Speed
ABS is a waste of time... just like traction controll!
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Old Mar 28, 2002 | 02:13 PM
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From: Littleton, CO
Car: 1986 Iroc Camaro
Engine: 305 TPI
Transmission: Th700R4 Jr. Raptor
ABS really just pulsates your breaks, when you press the petal down hard.

It makes straight line breaking increase a bit, but the idea behind it is that instead of pads contacting the rotor, and staying there, locking up the wheels, if the pads pulsate (grab and let go quickly) you will have more controll over the car, so you can steer out of the way of whatever it is you might hit, or avoid what you were breaking for.

Still, ive heard of studies done on them, and when people are almost in accidents with ABS, and they hit the petal hard (activating it) it feels like the petal is bumping and moving, some say, "like it's going over gravel" and end up taking their foot off the break, thinking the brakes are failing, and then causing an accident!

Just my opinion on what I have hears about ABS.
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Old Mar 28, 2002 | 02:20 PM
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
=)

Yeah I understand it.

I know they were putting abs on some forumla (cart) cars and they were saying it shortened their braking distance by like 20 feet.

I thought it worked by applying as must pressure has it could with out locking the wheel and the letting go and basically repeating that. I am probably wrong though.


Thanks for your input, I think you are correct
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Old Mar 28, 2002 | 06:46 PM
  #9  
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
Re: =)

Originally posted by Trux

I thought it worked by applying as must pressure as it could with out locking the wheel and the letting go and basically repeating that.
Your basically right. Although unless your car weighs 1500lbs and has 900hp, you should be able to stop it w/ out having to go through the headache of making an ABS.

PS_ get bigger tires it'll reduce braking distance.
You could try a parachute
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Old Mar 29, 2002 | 05:03 AM
  #10  
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
oh, =)

well, I don't think my car will ever way that much =(
I have thought would putting fatter tires on it but I probably won't do that until I have at least started the engine work. I
don't even have a block right now, and I am changing my mind alot. Not sure what alot of things.

I still would really like to do the tube front clip with fiber glass everything and a roll cage

but don't hold it against me, for now it is just a thought.
:lala: :lala: :lala:


Thanks everyone :hail: :hail: :hail:
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Old Mar 29, 2002 | 08:17 AM
  #11  
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
wondering...

Has anyone seen a EFI system with two different sets of injectors like 24 lb and 36??

So that a person can press a button to activate the 36 lb system for racing or whatever??

thanks,

it is just a thought..


:hail: :hail: :hail:
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Old Mar 29, 2002 | 09:08 AM
  #12  
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Re: wondering...

Originally posted by Trux
Has anyone seen a EFI system with two different sets of injectors like 24 lb and 36??

So that a person can press a button to activate the 36 lb system for racing or whatever??

thanks,

it is just a thought..


:hail: :hail: :hail:
No. The whole point of fuel injection is to deliver the proper amount of fuel regardless of situation. The car doesn't care if you're racing or idling, the computer is controlling the pulse-width of the injector firing to deliver the proper amount of fuel at all times.
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Old Mar 29, 2002 | 09:10 AM
  #13  
Trux's Avatar
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
=\

yeah I know I just thought if you had the smaller injectors you could use them to save on some gas
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Old Mar 29, 2002 | 02:28 PM
  #14  
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From: Indianapolis, IN
Car: 2000 Trans Am
Engine: LS1
Transmission: T56
trux, if your efi system is set up properly, it will not make a difference if you had #10 injectors or #100 injectors. You can set it to open the injectors a certain pulse width for a given load condition on the engine. The ECM does not know the difference between a #24 or #30 injector. You can tell it that in the setup but ultimiatley, it is how you tune the curves that make up how the car runs.

Your stock ECM can do things like this with a custom PROM and someone with the know how setting it up for you or you can go the aftermarket route and purchase something with more control via a laptop computer.

Just a little FYI for you.
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Old Mar 29, 2002 | 02:43 PM
  #15  
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From: portland, Maine USA
Car: grand prix/84 z28
Engine: 4.6 Northstar
Transmission: t-56
ok, cool =)

Thanks,

I really did not know that, really. I just though that it made the injector open up all teh way with a pulse and when you press the gas pedal and more air wold go in so the pulses would be increased until the a senor told it when it would burning just right.

thanks, =)


:hail: :hail: :hail:
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