How Much Boost
10-08-2003, 09:59 PM
#1
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Join Date: Dec 2001
Location: Jensen Beach, FL / Sylva, NC
Posts: 2,934
Can you run on the stock twins with no fuel upgrades on a FD??
Other mods
Trust Cat-back
Pettit Downpipe
Pettit Intake
Thats all the mods.
So how much boost would be safe?
Other mods
Trust Cat-back
Pettit Downpipe
Pettit Intake
Thats all the mods.
So how much boost would be safe?
10-08-2003, 10:11 PM
#3
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Join Date: Dec 2001
Location: Jensen Beach, FL / Sylva, NC
Posts: 2,934
Is 14 PSI safe though? BTW - I dont want borderline I want safe zone. This is for my dads card and he is slightly abusive to his FD. He drives it like a mad 17 y/o. So I need a good safe boost level for it. I was thinking 12 PSI. Anyone think that is a good number to go with.
Of course we will dyno it and make sure.
Of course we will dyno it and make sure.
10-08-2003, 10:28 PM
#6
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Location: fredneck MD
Posts: 4,107
Before the midpipe, i ran 14 psi with intake, catback, I/C, downpipe
i still run 14 psi with the midpipe. I guess I have a healthy fuel system. Now that it is getting cold, i turned it down to 13pri, 12 secondary to compensate, still runs awesome.
i still run 14 psi with the midpipe. I guess I have a healthy fuel system. Now that it is getting cold, i turned it down to 13pri, 12 secondary to compensate, still runs awesome.
10-08-2003, 10:30 PM
#7
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Location: fredneck MD
Posts: 4,107
Originally Posted by Jims5543' date='Oct 8 2003, 11:28 PM
How about if he adds a boost controler and turns up the boost how much is safe? That should have been my initial question..sorry!!
Dont go over 10 without one, i dont know of you mentioned anything about an ECU.
10-08-2003, 10:32 PM
#8
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Location: fredneck MD
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Originally Posted by Jims5543' date='Oct 8 2003, 11:11 PM
He drives it like a mad 17 y/o.
Im young but i'm not stupid.
With these mods i was in the mid 80's duty cycle. yours will be even lower.
The Pettit ECU's (the stage 3..whatever the most agressive tune is) just maxes out the injectors to 100%.
Peter Farrel's advice to me about fuel was.."if your using the stock twins, there is no need to upgrade the fuel system (perhaps a bigger pump...) because the engine will just not use it all. " I feel this is the way to blow a motor up...however he has been right so far in my case.
10-08-2003, 10:41 PM
#10
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Location: Jensen Beach, FL / Sylva, NC
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ECU Upgrade out of the question at this point in time. I will set him up to run at 10PSI that should be plenty fun for him and keep the car alive.
He is 57 years old has a 2000 C-5 Vert in the garage and never drives it anymore. Ever since he got the Fd. He gets into more red light races then I could ever dream of.
He is 57 years old has a 2000 C-5 Vert in the garage and never drives it anymore. Ever since he got the Fd. He gets into more red light races then I could ever dream of.