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[Supercharged Only] Have you gone with bigger injectors???

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Old May 21, 2010 | 09:48 PM
  #21  
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both you are crazy....the intercooler is not needed even 10 psi with intercooler will make less power than 10 psi without intercooler ...its too much piping for that blower it doesnt flow enough air...
Old May 21, 2010 | 09:56 PM
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Hey I noticed your local, you should get with either me, coreyjames or giggles we can help you out. BTW, due to altitude you will never see the claimed boost pressure on those pulleys.
Old May 21, 2010 | 10:20 PM
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Originally Posted by Thorium06
BTW, due to altitude you will never see the claimed boost pressure on those pulleys.
I know
I need to get my gauges installed so I can see what kind of loss I'm taking from the stock PSI @ 5280ft, my guess would be running at maybe 5.5psi...

Sea level air pressure is approximately 14.7 pounds per square inch (14.7 PSI) or 1013.8 millibar. If you extrapolate from the scale above it would be 14.692 PSI or 1013.25 millibar. Air pressures vary quite a bit though, as the local weather changes. Also, 14.7 PSI is the average atmospheric pressure only at sea level. Pressure drops as we gain altitude; for instance, in Denver, approximately 1 mile above sea level, atmospheric pressure drops to approximately 12.2 PSI or 841.4 millibar.
NST does make a 15psi pulley (45mm I think) which might help recover some of that loss, but its completly custom order.

Originally Posted by Thorium06
Hey I noticed your local, you should get with either me, coreyjames or giggles we can help you out.
I will hit you up when I get working on this. Some of the fabrication will be done by a tuner shop. Been talking to a shop in Parker, CO about it. There has been a supercharged tC w/ FMIC done before but it was completely custom for a magazine, Bell Intercoolers worked with some shop for the build. They pulled out 280hp.. don't know what else was included in the build.
Old May 21, 2010 | 10:29 PM
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Default [Supercharged Only] Have you gone with bigger injectors???

Originally Posted by SoccerBoy_AP
Actually I was looking to jump to the 55mm pulley after I get.... a front mount IC...
Yes I know I know I know... loss of boost .. I know

That's why I want to jump to the 12psi, then after the IC I'll have around 10psi... a cool 10psi which is more stable then al/meth injection from a tank that can run out!!!

But before all that I'd need the injectors, which I will probably do the 550cc's just for expansion plans.
I had a 12pai pulley abs never saw 12psi. Highest it went was 10.5.
Old May 21, 2010 | 10:30 PM
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please tell me this shop you are working with is not mac autosport
Old May 21, 2010 | 10:38 PM
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Originally Posted by m6ar2cel6oTC
I had a 12pai pulley abs never saw 12psi. Highest it went was 10.5.
with my 9.5lb nst pulley I have only seen 8psi. I would like get to around 10psi, may have to get the 55mm pulley.
Im almost at sea level here in Louisiana.
Old May 22, 2010 | 12:54 AM
  #27  
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Originally Posted by Thorium06
please tell me this shop you are working with is not mac autosport
Uhmm.... (/nervous) heheh

No?

Wait... yes

Aaron,
Yes, we can help you out. To get dyno numbers, call us a t 303-841-1176 to set up a time for a baseline - $64.95 for 3 pulls with wideband. We can determine what's needed for tuning, and the requirements for an aftercooler (intercooler if it's a centrifugal SC). We have determined by experience that about 11 to 12 psi actual is comfortable for the engine in your car.

Give us a call to get started.

Sincerely,
Bill McMahan
MAC Autosport, Ltd.
303-841-1176
Old May 22, 2010 | 02:07 AM
  #28  
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Dude its not in me to talk bad about people, but in this case, I would hate to see you go through the same troubles they caused me. I had a thread around here somewhere, but it looks like it got deleted. Anyways long story short, I had them hard wire some injectors for me which turned out to be a hack job from hell. It took me months with the help form members on this forum to finally trace the problem back to the injectors, one was wired backwards and many of the connections were left almost falling off. This was the first and last time I have ever contracted work on my car, normally I do everything myself. Locally they do not have that great of a reputation, there are plenty of other shops around here much more worthy of your business. If you want more details on this, just pm me or something. Just walk out while you still can, I would hate to see another MAC attack.

Anyways, if you really want to try and push that thing, just pick up a smaller pulley, injectors, management+stock ecu and a fuel pump so we can put you on some e85. That blower loved e85 when I ran it.
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