6 psi, but no real power increase
#1
6 psi, but no real power increase
Okay guys, I installed the basic Jackson racing supercharger kit on my 92 1.6
-I own a turbo Miata and just wanted to try something different, In my opinion a turbo is superior to a supercharger, but I just wanted to do something else after four turbo cars. Here is my problem. I bought the kit used. My boost gauge shows 6 psi of boost(like it should) but I don't really experience a noticeable increase in power even at full boost. My first guess is that I am not getting enough fuel. I checked the hoses going to the AFPR and they are all hooked up right and are not kinked. I put a gauge on the vacuum line going to the AFPR and it is getting six psi of pressure at full boost like it should be. I haven't noticed any detonation, but I have been running high octane fuel. The car has 107K. I did buy a new fuel filter but have not installed it yet. My question is this. What else could it be? I checked all my connections and they are all tight, so I don't think I've got a boost leak anywhere. How do I check the fuel pressure to make sure that it is increases under boost. Any advice for a misguided guy?
-I own a turbo Miata and just wanted to try something different, In my opinion a turbo is superior to a supercharger, but I just wanted to do something else after four turbo cars. Here is my problem. I bought the kit used. My boost gauge shows 6 psi of boost(like it should) but I don't really experience a noticeable increase in power even at full boost. My first guess is that I am not getting enough fuel. I checked the hoses going to the AFPR and they are all hooked up right and are not kinked. I put a gauge on the vacuum line going to the AFPR and it is getting six psi of pressure at full boost like it should be. I haven't noticed any detonation, but I have been running high octane fuel. The car has 107K. I did buy a new fuel filter but have not installed it yet. My question is this. What else could it be? I checked all my connections and they are all tight, so I don't think I've got a boost leak anywhere. How do I check the fuel pressure to make sure that it is increases under boost. Any advice for a misguided guy?
#3
wow, toughie. if you have retarded your timing a ton it's not going to feel very fast. what about the bypass valve? it could not be opening, or could be backwards? the wide part should be closest to the SC, skinnier part towards the dummy throttle. what are you doing for timing control? I recommend a bipes, it ran my jrsc pretty well.
#4
wow, toughie. if you have retarded your timing a ton it's not going to feel very fast. what about the bypass valve? it could not be opening, or could be backwards? the wide part should be closest to the SC, skinnier part towards the dummy throttle. what are you doing for timing control? I recommend a bipes, it ran my jrsc pretty well.
#7
I don't know anything about superchargers. If you are used to turbo chargers kicking in all of a sudden vs a supercharger basically pulling from bottom up. Are you just used to the power. I Drove my Zx9 all night thinking that the carbs are not performing right, just to figure out. I was used to 161 hp on the zx10 vs 40 less hp on the zx9.
But you should notice a differance between stock.
But you should notice a differance between stock.
#9
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fuel pressure with an afpr is directly related to boost.
you should run at 45 (base) + 6x6=36 psi off fuel..
That should be around 80 psi...
What's your FP??
Are you running an MSD/Bipes??
You could check the capped hose barb @ the end off the intake... It is used on automatics.. Sometimes the rubber is damaged, cousing a loss off air pressure @ boost, the hole is small enough to fully spool a turbo/supercharger to 6 psi...
you should run at 45 (base) + 6x6=36 psi off fuel..
That should be around 80 psi...
What's your FP??
Are you running an MSD/Bipes??
You could check the capped hose barb @ the end off the intake... It is used on automatics.. Sometimes the rubber is damaged, cousing a loss off air pressure @ boost, the hole is small enough to fully spool a turbo/supercharger to 6 psi...
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