A few noob FI questions :)
03-27-2006, 01:11 AM
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A few noob FI questions :) Ok, here goes. I"m going to have you guys moaning in this first sentence 
I bought an F-Body Powerdyne head unit(I know I know). I'm going to be trying a custom install in my C5. My power goal is 450-475hp daily drivable with the occasional trip to the strip. Really not looking to exceed that as I dont want to start breaking things
So now for some basic questions:
-How will my cam(in sig) be with the boost ?
-How far will the stock injectors/fuel pump go ?
-What PCV mods are necessary running 6-7PSI ? Just breather it ?
Thanks in advance for any advice
I bought an F-Body Powerdyne head unit(I know I know). I'm going to be trying a custom install in my C5. My power goal is 450-475hp daily drivable with the occasional trip to the strip. Really not looking to exceed that as I dont want to start breaking things
So now for some basic questions:
-How will my cam(in sig) be with the boost ?
-How far will the stock injectors/fuel pump go ?
-What PCV mods are necessary running 6-7PSI ? Just breather it ?
Thanks in advance for any advice
03-27-2006, 04:57 AM
#2
Your camshaft will bleed off some boost with the 112 LSA, usually the blower can compensate by adding a smaller pulley to spin it faster. With the Powerdyne and your cam, I doubt you will see much boost.
You are going to want to replace the stock injectors, pick up some SVO 42lb injectors by one of the companies selling them on Ebay for $260.00. Trying to go cheap and using the stock injectors will probably end up in the engine requiring a rebuild.
Your factory pump should work, as you won't be seeing much boost.
No need to upgrade the PCV system at the low boost levels.
Make sure you get a computer tune before you go wide open throttle once the blower is installed. Bob
You are going to want to replace the stock injectors, pick up some SVO 42lb injectors by one of the companies selling them on Ebay for $260.00. Trying to go cheap and using the stock injectors will probably end up in the engine requiring a rebuild.
Your factory pump should work, as you won't be seeing much boost.
No need to upgrade the PCV system at the low boost levels.
Make sure you get a computer tune before you go wide open throttle once the blower is installed. Bob
03-27-2006, 05:59 AM
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Originally Posted by Exotic Performance Plus
Your camshaft will bleed off some boost with the 112 LSA, usually the blower can compensate by adding a smaller pulley to spin it faster. With the Powerdyne and your cam, I doubt you will see much boost.
You are going to want to replace the stock injectors, pick up some SVO 42lb injectors by one of the companies selling them on Ebay for $260.00. Trying to go cheap and using the stock injectors will probably end up in the engine requiring a rebuild.
Your factory pump should work, as you won't be seeing much boost.
No need to upgrade the PCV system at the low boost levels.
Make sure you get a computer tune before you go wide open throttle once the blower is installed. Bob
You are going to want to replace the stock injectors, pick up some SVO 42lb injectors by one of the companies selling them on Ebay for $260.00. Trying to go cheap and using the stock injectors will probably end up in the engine requiring a rebuild.
Your factory pump should work, as you won't be seeing much boost.
No need to upgrade the PCV system at the low boost levels.
Make sure you get a computer tune before you go wide open throttle once the blower is installed. Bob
My plan was to run a 9psi pulley and go for 6-7PSI
Its definetly getting a tune...I"m still running stock tune on the cam and other mods...so after I install my LTs and this setup it'll be way overdue for a good tune anyway
03-27-2006, 06:17 AM
#5
Good advice ! With 6 psi and a good tune, you may see 420-440rwhp. I just took a Powerdyne unit off a customers '99 T/A and he was making 420rwhp with all the bolt-ons , 6 psi and a decent tune. IMO, the Powerdyne units are ok, as long as you don't spin them much past 6-9psi.
03-31-2006, 04:52 PM
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Originally Posted by NOSjohn
Good advice ! With 6 psi and a good tune, you may see 420-440rwhp. I just took a Powerdyne unit off a customers '99 T/A and he was making 420rwhp with all the bolt-ons , 6 psi and a decent tune. IMO, the Powerdyne units are ok, as long as you don't spin them much past 6-9psi.