Oh wow. SOUNDS LIKE A 16year old PUNK! You give me a call when you get that 150hp ok BUD? LOSER

 

yeah I got to thinking 80 lb/hour was probably a bit much...I come from the land of Small Block Chevys...my last project car used 100 lb/ hour....

Superchargers...a motor is not supercharged until its boost is above 14psi...and regardless of whether you are using a turbo or blower once boost is above 14 psi it's supercharged...the reason for that being is atmospheric pressure is generally regarded as 14 psi...depending on elevation in regards to sea level I believe...have to dig my notes up on that...

I think the aftermarket and the auto makers think Supercharged sounds better than Blower or Blown...but it's still not the proper term...yeah I get **** about those things...

 

ummmm.... yeah. you don't know what you're talking about. anything over 0PSI is forced induction. 0psi is atmospheric pressure when related to boost. it's a matter of reference.

 

same formula as always for na:
- shave head raising compression
- port/polish head for more air
- overbore and sleeve block
- change up rods and pistons, stroke that puppy

Its all about building a bigger campfire, but this campfire burns visa or mastercard.

 

Absolutely.

 

80lb/hr injectors are huge for a SBC too... 640lb/hr is a ton of fuel.

In terms of atmosphere, it's 14.7psi. This doesn't mean that you have to double it to be "supercharged". Supercharging is any pressure above atmosphere. Also, blower or blown is a term that makes me mad, the only supercharger that should be called a blower is a roots supercharger. The rest internally compress the air (centrifugal, turbo, twin-screw) and therefore should be called compressors.

http://www.google.com/search?hl=en&l...:SUPERCHARGING

Read up.

 

Google psiG

 

All you guys must be very dumb! Everyone knows with the simple addition of some ground wires, an oil catch can, Nology Hot Wires, irridium plugs and 2 PROPERLY PLACED Type R stickers, anyone can get that kind of HP real easy! Sheesh!

 

guess again guys...atmospheric pressure is 14.7 PSI...boost or no boost...what these "Supercharger" companies are not telling you is that a motor creates a vacuum when running...meaning your intake charge is less than 0 PSI when it enters the combustion chamber...how much the cylinder pressure drops is subject to many variables...displacement, compression...even lift and duration from the camshafts...thus a blower has to achieve a minimum of 14.8 PSI to be fully considered supercharged...see if you can get some tech manuals from Detroit Diesel regarding the 53, 71, or 92 CID per cylinder series motors...they go into this subject at great length...all X-53, X-71, and X-92 Detroits came from the factory with blowers and are considered naturally aspirated...stack a turbo on them and then they can make enough boost to be considered supercharged...and before someone tries to say anything about using diesel tech...it's still an internal combustion engine...and the principles of supercharging remain the same...the pressure on the intake must exceed 14.7 PSI to be supercharged anything less is just forced induction...

 

I remember when Paxton first started advertising in the late 80's...they advertised as centrifugal blowers...it wasn't until the mid 90's that this whole "Supercharger" bit really started to take hold...exhaust driven=turbo, belt or gear driven from the motor=blower...

 

And all this matters how...?

 

I'm sorry, but you are completely false. 0psi on a gauge made for the planet earth is already one atmosphere (14.7psi), any positive pressures read on a gauge are already above atmosphereic pressure by the gauged amount. Please don't spread false information. Boost pressure + Atmosphere = Absolute Pressure... ANYTHING above 14.7psi ABSOLUTE would be considered supercharged. ALL boost pressures that are discussed when talking about F/I are additional to the atmospheric pressure. A 6psi kit will make compress air 6psi over atmosphere.

 

You are very mis or uninformed. My boost gauge reads:
0 with the car off.
-20 mmHg with the car idling.
up to +14 while boosting.

Yes. atmospheric pressure is 14.7. So essentially, I'm running up to 28.7 psi into my engine. But the gauge still reads 14psi.

So. Any time the gauge reads a positive pressure, I am forcing air into the engine.

Are you sure you know how engines and turbos and superchargers work? Cause it sure doesn't sound like it. There is no "pressure drop" in a combustion chamber. The piston moving up compresses the air/fuel mixture. So there is positive pressure when the fuel ignites. The cylinder moving down with a valve open sucks the air/fuel in from the outside. The vacuum created is because of this.

And what were you doing with 100 lb/hr fuel injectors? Those would be good for over 1500hp on a V8. You're telling us you were driving a car witih that much power that you needed those huge injectors? Doubtful. You probably didn't even need half that size.

 

yep looks like a vacuum to me...wonder why that is...
that is supercharged...
no...you are forcing 14+ PSI
right...and once 14.7 PSI is passed you are no longer just running forced induction but supercharged...
no...I just keep these 500 page Detroit manuals around because they look pretty and make good paper weights... /sarcasm
please pay attention...yes, I know I should have wrote cylinder instead of combustion chamber...
Who said anything about it being a street car? 1988 GTA stock 5.7 L displacement... 9.8 second 1/4 mile...full interior and full roll cage...and yes in theory you can develop that much HP with DFI and 100 lb/hour injectors...but the most it ever dyno'd on a chassis dyno was just over 900...I will see if I have any old dyno sheets and e.t. slips floating around...last I heard the kid I sold it to tried adding a 200 HP shot of nitrous and wasted the motor...

 

i say you guys keep on topic. this has now turned into a "what's a turbo and how does it work" kind of thread. easiest way to make 150whp without s/c or turbo is nitrous. 300 dollars and u can have a 75 shot in your car. how do i know? i did it. but im not using it anymore. anyone wanna buy it. pm me. i ran a 16.0 my first time at the track. and i know with that setup its a 15 second car.

 

Nope. It's a turbo. It runs off the exhaust.
Would you please be consistent. You are contradicting yourself.
Actually, it's forced induction. Supercharged is a type of forced induction.
[/quote]Again. Please be consistent. A boost gauge reading 0 means that air in the intake is at 14.7psi (or the standard atmospheric pressure). You never actually read the combustion chamber's pressure because things are happening way to fast to get any sort of reading.

Please don't confuse the less educated with trivial garbage.

Yes. Standard atmospheric pressure is 14.7 psi.
Yes. A non forced induction motor will never show a positive pressure (above atmospheric pressure).
No. You will NEVER find a mechanical boost gauge that reads 14.7 psi with the engine off (unless it is very very broken).
Yes. A boost gauge showing ANY positive pressure (including .1psi) is considered "under boost".

 

150whp out of a N/A 1nz-fe?

-regrind cam
-ecu
-port and polish
-4-2-1 header (have to be custom)
-custom full 2.25 exhaust
-high flow cat
-cai or some kind of performance intake
-stroker
-bore pistons
-work intervals
-new sparks
-ignition upgrade
-fully tune
-P.E cam-con (about to come out) VVT-I controller

BAM! you've probably reached around 145-150whp. Now, this may not sound like alot. But lets just say stock is 95whp, (for grins) and lets say weve met the 150whp goal, thats a 55whp increase! Thats well over 50% increase to the freaking wheels. With 150whp, we are talking 185hp (give or take) to the crank.

However, it would be easier to go the s/c or t/c route. Which is what i plan on doing, hopefully will have my power enterprises s/c by the end of the year.

Cya

 

did you try one of these?
they're cheap and reliable.




-just trying to bring some brevity....

 

Are we still wasting our time on this IDIOT?

 

Hey BOX___ your a dumbass... in case you didn't know, sorry to be the one to tell you. Screw Off