How many RPM's are are we turning the blower with a high boost pulley?

Most people that have added the high boost pulley gained a quicker "spool time" upon acceleration and nothing on the top end of the rpm range. This is what i hear from people that have installed it.

If the blower is being pushed to the 14k rpm limit what does that do to volumetric efficiency? You can still make boost with an undersized turbo or blower except it will sit there and just heat the intake charge and promote detonation.

I'm not sure how the tuners adjust for this but i'm assuming with added fuel to compensate the heated charge. I guess by adding something like the ice box intercooler it might actually be beneficial by bringing back a denser,cooler intake charge.

I kind of jumped the gun when i posted this and just something i was thinking about....you know one of those late night brainstorms. Im not saying it is or it isn't but just an idea to think about.

Anthony

 

Everyone,

I was reading a neat article in some magazine and they definitely made a distinction between the roots (Eaton) and screw (KB) superchargers.

Apparently the screw type uses 2 identicle lobes and the roots type uses 2 "shaped" lobes.

The difference is in efficiency. Apparently the screw type is more efficient.

That is not to say that the Eaton sucks, just that an apples to apples comparison puts the screw type more efficient.

I will look up what magazine that was and post as it was a very interesting article about forced induction.

Also, it stated that Eaton has recently licensed the screw technology from KB...hmmmm

Later

------------------
Brian K
kimmel_brian@prc.com
thedink@ix.netcom.com

99.5 Black - Born 5/17/99

• "Full Trim" Club
• 13.28 @ 102.31 (8.52 @ 83.84) Street tires & 93 octane
• 12.97 @ 105.18 (8.30 @ 84.68) MT's & 100 octane
• Appearance Mods: Tinted Windows, Clear Corners, Bed Rug, Street Scene Grilles, Pro-Sport Lid, Autometer "Phantom" Boost Gauge
• Performance Mods: JL Stage 2 intake, JL Ram Air, JDM Street/Strip FlipChip, FRP Single Blade TB, NGK TR-6's, Electric I/C Fan, MT ET Streets 26x11.5x16's, PSP Lower Pulley, 90mm MAF
• Sound Mods: Alpine Audio w/MB Quart Components(F) & Pioneer(R) speakers
• Misc: Tow Package, Mobil 1 5W-30
• Coming Soon: PSP Electric Fan

Foolish man give wife grand piano, wise man give wife upright organ

 

Rousch and Saleen all use roots blowers on their new Mustangs.

------------------
99 Lightning, JL Ram Air, Daiblo Chip(JL Programmed)and 90mm MAF,JL Power Cooler, Level 10 shift kit,PSP Lower pulley, Single Blade T/B, Bassani exhaust, . 12.42 at 109.6..Full trim and stock convertor, MT Street ET's.

 

No re-burn needed on the chip when you add the pulley. From what I hear no detonation on stock trucks with just a pulley.

------------------
2000 Silver Lightning 13.16 (so far)
PSP 4-way
PSP Filter Kit
PSP Lower Pulley
Level 10 Shift kit
F-250 Trans pan
MagnaFlow 12468
Snug-Lid

I feel a 12.xx coming on.

Team PSP West

 

Did Top Gun ever run the novi by itself to see what kind of power he was getting vs the eaton, or was that even possible with his setup?

 

Wait till some one designs a kit to run a paxton or vortech through the existing intercooler. There will be a lot of Eatons for sale that day.
Tom

 

I disagree.

 

I'm pretty sure that compressing air creates heat that must be cooled in order to gain power in our motors. A diesel engine compresses the fuel charge so much that the charge actually ignites with little help because it's so hot from the squeeze. In the world of electricity, if you restrict the flow of electrons, heat begins to buildup and your extension cord starts to melt when you hook up your high amp stuff on a mediocre amp circuit because those electrons want to move move move and can't because they are being held back from flowing freely by a figurative small pipe in which to flow. So, just by the fact of compression of air, cooling is needed as a helper reduce that heat to gain hp; it's just the way it is. I'm no engineer; but, I think what I just spouted is pretty close to the truth.

 

Nah, that's only for when you're vehicle is off at the track, to help cool it down quicker. Turn the heater to floor and the temp to full hot, and the fan to wide open. This is a cheap trick and it isn't all that effective although it does work somewhat.

BfB

 

The intercooler is on a seperate cooling system. Turning the heater on will not have any affect over the intercooler.

Ruslow good point BTW...that is the theory i had

 

the reason our s/c has the output it has is
FORD. the specs were such as to have certain
noise level, look of the intake and longevity
among others. if you look at the M112 s/c
GEN IV, the inlet is at the rear and much
larger and the outlet V has almost twice the area. this s/c is capable of at least 100 more HP. i hear that a complete kit is in the works from MAGNUSON, including s/c,
intake, chip etc.
as the number of GEN II LIGHTNINGS increases
i expect to see a lot more from the aftermarket. we are in the third year of production which makes the total number of
Ls about 16000. how many mustangs are out there?.

 

ASTRAPI....I do hope finally some good performance companies out there will finally give credit where it is due.....

Im sure you will agree that thumbing through ford magazines gives you the impression that the lightning not a top force to be reckoned with....for instance countless aftermarket mustang parts from here to mars! You could virtually build a mustang just from aftermarket parts.

 

I have been looking at the intercooler sign in and have come up with a therory[sp],if you lok at all the sign ins the vast majority of them are drag racers.I have done some testing and found that at the end of the strip your intercooler temps[water is about 140 to 160 and with that and the small amount of deforming under boost[by psi in the manifold and from the down force on it]it is deforming the intercooler mounting and allowing the intercooler to move,thus allow it to crack.Since I road race I ck my temps and they are almost always never about 20 degrees about amb.

 

forgive me if this is a dumb question---would turning the "heat" control to fully hot, help in lowering any of the temps. we're concerned about?

------------------
2001 Lightning, silver, escort 8500, ranger 2950dx dual band radio, wilson 2000 ant., bot/picked up on 05/08/01, 1997 f150 xlt 4.6L 4x2 with: a/f one fipk, superchip, optima battery, bbk 75mm throttle body, edelbrock ias shocks--2001 lightning to come(she came--see above)