Built Motor with Paxton Results

Texas Yellow Fever said:
Ok, I'm going to step off into something that I know nothing about here, but that's never stopped me before...:eek:

Seems to me that the amount of boost, as measured by a boost gauge, is (by itself) of no real meaning. In fact, seems logical to me that if boost were 0 that would not be a bad thing. In fact, less boost, to me, would signal a healthy breathing engine since "boost" is actually a measurement of resistance to increased airflow through the engine. Superchargers, as I understand them, attempt to force a given amount of air through the engine. If the engine is capable of taking it all, then boost would be zero, no? That doesn't mean the S/C isn't doing it's job...sounds to me like you just need a bigger S/C to feed your engine more air.
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yessir, think of it this way,

take a 1 inch diameter pvc tube 1 ft long, blow thru it, you get good pressure out the other end.

now take a 4 inch pvc tube and do the same, you want feel too much.

what is happening is the paxton cannot feed enough air basically to feed the engine.


the cam , heads, compression all come into play , but thats a basic explanation:p
 
Texas Yellow Fever said:
Ok, I'm going to step off into something that I know nothing about here, but that's never stopped me before...:eek:

Seems to me that the amount of boost, as measured by a boost gauge, is (by itself) of no real meaning. In fact, seems logical to me that if boost were 0 that would not be a bad thing. In fact, less boost, to me, would signal a healthy breathing engine since "boost" is actually a measurement of resistance to increased airflow through the engine. Superchargers, as I understand them, attempt to force a given amount of air through the engine. If the engine is capable of taking it all, then boost would be zero, no? That doesn't mean the S/C isn't doing it's job...sounds to me like you just need a bigger S/C to feed your engine more air.
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Yup, more boost (with a higher capacity turbo or a s/c would do the trick) and that is correct, the fact there is less "back pressure" indicates throughput assuming everything is working as it should..

I would do a couple of things that would help- Go back to a stock intake manifold ( and yes, small ports going into bigger ones is fine) and back off the Crowers to dummy-down the cam a bit.

It looks like he is already close to sea-level so it is currently as good as it is going to get. A 12 # kit here delivers 8. A 8 delivers around 5, etc. It is the same story whether is is a turbo or a s/c.
 
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Stinker said:
yessir, think of it this way,

take a 1 inch diameter pvc tube 1 ft long, blow thru it, you get good pressure out the other end.

now take a 4 inch pvc tube and do the same, you want feel too much.

what is happening is the paxton cannot feed enough air basically to feed the engine.


the cam , heads, compression all come into play , but thats a basic explanation:p
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Tony you have "blowing" down to a science...:D
 
Stinker said:
yessir, think of it this way,

take a 1 inch diameter pvc tube 1 ft long, blow thru it, you get good pressure out the other end.

now take a 4 inch pvc tube and do the same, you want feel too much.

what is happening is the paxton cannot feed enough air basically to feed the engine.


the cam , heads, compression all come into play , but thats a basic explanation:p
Click to expand...

There are some 1 ton diesel guys around here with dual 12" stacks. If they get much bigger, the smoke they seem to like might not make it out at all! :)
 
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rottenronnie said:
There are some 1 ton diesel guys around here with dual 12" stacks. If they get much bigger, the smoke they seem to like might not make it out at all! :)
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ah yes good ol cats with stacks:D
 
LoveThisTruck said:
That sucks bro:( Guess the only way to go BIG is turbo:dontknow: Sorry you guys are having to find this out the hard way
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I think there is another option for the Paxton but will take some R&D. For my build after the motor is forged I'm going to clutter up the engine bay with another Novi on the driver side. This may not be the best solution for the low boost problem but it will look pretty tits.
 
tsmith3 said:
I think there is another option for the Paxton but will take some R&D. For my build after the motor is forged I'm going to clutter up the engine bay with another Novi on the driver side. This may not be the best solution for the low boost problem but it will look pretty tits.
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actually it would work perfectly:rock: the plumbing will be fun tho:D
 
rottenronnie said:
I would do a couple of things that would help- Go back to a stock intake manifold ( and yes, small ports going into bigger ones is fine) and back off the Crowers to dummy-down the cam a bit.
Click to expand...

Maybe I'm missing the whole point here, but why would you essentially go backwards by introducing inefficiency. Isn't the whole reason we spend all these $$$ on engines etc to get the most air through them possible all the while making the most HP possible? The better answer is step up and fill the void that has been created...:burnout:
 
Texas Yellow Fever said:
Maybe I'm missing the whole point here, but why would you essentially go backwards by introducing inefficiency. Isn't the whole reason we spend all these $$$ on engines etc to get the most air through them possible all the while making the most HP possible? The better answer is step up and fill the void that has been created...:burnout:
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you are on the right track steve, the problem is the paxton as it comes cannot produce enough air to fill those voids, hence why jack and Rammy are going to a larger supercharger, it produces more volume

now with the bigger engines, more efficeint, and with a larger supercharger, who knows, they may have a $200,000 supercharged viper truck that can almost make as much hp as a turbo:p :p :p :p :p :p :p :p :p :p
 
tsmith3 said:
I think there is another option for the Paxton but will take some R&D. For my build after the motor is forged I'm going to clutter up the engine bay with another Novi on the driver side. This may not be the best solution for the low boost problem but it will look pretty tits.
Click to expand...


Now that will be just plain nasty!:rock:
 
Stinker said:
you are on the right track steve, the problem is the paxton as it comes cannot produce enough air to fill those voids, hence why jack and Rammy are going to a larger supercharger, it produces more volume

now with the bigger engines, more efficeint, and with a larger supercharger, who knows, they may have a $200,000 supercharged viper truck that can almost make as much hp as a turbo:p :p :p :p :p :p :p :p :p :p
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I ain't never seen a funny car with a turbo...they're just using the wrong damn supercharger...;) :p :D :burnout:
 
Texas Yellow Fever said:
I ain't never seen a funny car with a turbo...they're just using the wrong damn supercharger...;) :p :D :burnout:
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LOLOL yep, I would still llike to see the one you was gonna use on a truck be done:rock: :burnout:
 
Stinker said:
LOLOL yep, I would still llike to see the one you was gonna use on a truck be done:rock: :burnout:
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Me too...there was a time I woulda done it, but that was back when I had more money than brains...LOL!!! A 14-71 GMC would make one of these engines scream...IMHO. But what do I know, I'm too old school hot rod I guess...Hell, I like headers too...LOL!
 
FYI big big power = Turbo

medium power to big = paxton/roe...if you put on a roe dont stroke your motor or go with to aggresive of a cam or heads. paxton...belt slip
 
BurntRubber said:
FYI big big power = Turbo or ProCharger
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Fixed it for you.

I think JMB, Fstjack, and RamFromHell will prove that statement. The new ProCharger they are using will likely make as much power as Doms build does on Turbo.
 
tinygiants said:
Fixed it for you.

I think JMB, Fstjack, and RamFromHell will prove that statement. The new ProCharger they are using will likely make as much power as Doms build does on Turbo.
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even with that tiny, and I could be wrong, but I dont think they will make the power a turbo set up will:)
 
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