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lollersk8s
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Quote:
Originally Posted by pyramid View Post
look up, fuck I forget the term, but hot outgoing gases create a negative reverse pressure wave that aids in filling the cylinder with incoming air during intake/exhaust valve camshaft overlap. that's why NA rice and kraut burners make so much racket out the intake when you put some ridiculous CAI on them. that's the sound of that exhaust pulse from cam overlap coming through the intake...

welp, the faster the gasses, the more negative pressure, the better the volumetric efficiency of you NA engine... I had a fully ceramic coated, insulating wrapped, high temp powder coating over that exhaust from beginning to end 20 years ago when nobody had that shit on a car.

OEMs have only recently caught up to what I was reliably putting down 20 years ago. 440HP/480 toarks at the wheels doesn't sound like shit these days, but it was pretty exceptional for a daily driver in 1995. and that was with a stock GM bottom end that went 90k miles of daily abuse and track abuse before it was stolen and lost forever.

not all of my car ideas were good ideas but some were really good. I was dreaming of electronically actuated valves before I even got a car... that shit is still 'pending'... but at least some people are trying to make it happen:

BORKED


In my HS auto class the teacher told us about solenoid actuation, and how it's been an idea for a very long time now. Also explained what you're talking about as far as getting the most volumetric efficiency out of a motor. Mostly that has to do with the width and length of the primaries - gas expands and cools, so they can't be too big, and of course small creates a physical restriction. It's a balancing act, optimized for a certain RPM. Most cars are optimized for mid-range in that area from factory. The same goes for intake manifolds. On exhaust side insulation helps keep the gas from cooling off and becoming denser, for faster flow.

As far as your car goes I'm just saying you did other things to it, that power is obviously not just the exhaust insulation Without it? Maybe -1 hp lulzlzlz imo, but what do I know....
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Last edited by lollersk8s; 07-14-2014 at 09:42 PM..
Old 07-14-2014, 09:36 PM lollersk8s is offline  
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#1066  

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pyramid
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it also had 1 3/4" long tube, equal length primaries, 3.5" collectors, 3" Y pipes and a 4" single exhaust from y pipe to tail pipe...

and some other things...
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Old 07-14-2014, 09:47 PM pyramid is offline  
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#1067  

lollersk8s
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Was it a single from factory? Usually everyone wants dual I had a single 4" mid section in the vette for a couple feet, then another Y out to the factory tip locations. Didn't like it, wanted true dual with x-over.
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Originally Posted by she nice
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Old 07-14-2014, 09:49 PM lollersk8s is offline  
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#1068  

pyramid
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I always wanted true dual with x over too but GM literally dented the floorboards upwards on the passenger just side to fit the stock exhaust in there so I was kinda limited in routing ability...

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Old 07-14-2014, 09:53 PM pyramid is offline  
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#1069  

lollersk8s
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Quote:
Originally Posted by pyramid View Post
I always wanted true dual with x over too but GM literally dented the floorboards upwards on the passenger just side to fit the stock exhaust in there so I was kinda limited in routing ability...


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Originally Posted by she nice
i do drink but it's not as effective for immediate relief
Old 07-14-2014, 11:32 PM lollersk8s is offline  
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#1070  

pyramid
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srsly, get in any 4th gen camero and on the passenger side front floorboard there is a huge hump...

that is where the catalytic converter is...
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Old 07-14-2014, 11:50 PM pyramid is offline  
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#1071  

GhEttOrAiD
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welp

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Item Name                    Item Price    Quantity   Item Total
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 81-22-0-142-156-M4              $12.50         2          $25.00
   Brake Fluid - DOT 4 Low Viscosity    (1 Liter)  Brand: Ate (2000 BMW
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 34-35-1-182-533-M584            $11.25         1          $11.25
   Kit PEL-BBKZ3-04: Brake Pad Sensor, Rear (Overall Length 840 mm)
   
----------------------------------------------------------------------
 34-35-2-227-385-M584            $13.00         1          $13.00
   Kit PEL-BBKZ3-04: Brake Pad Sensor, Front Left (Overall Length 815 mm)
   
----------------------------------------------------------------------
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   Brake Disc Retaining Allen Bolt 8 X 14 mm, Z3 M3.2  (1998-00)
   Coupe/Roadster  with S52 Engine (Z3), Brand: Genuine BMW
   
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 34-41-6-761-294-M404            $36.25         1          $36.25
   Brake Shoe Set for Parking Brake Brand: ATE (2000 BMW Z3 M Roadster
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 34-41-0-304-724-M80             $11.25         1          $11.25
   Hardware Kit for Parking Brake Shoes Brand: TRW (2000 BMW Z3 M
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 34-21-2-227-177-M359            $58.00         1          $58.00
   Brake Disc    (312 X 20 mm, Rear Left)  Brand: Zimmermann Coat Z (2000
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----------------------------------------------------------------------
 34-21-2-227-178-M359            $58.00         1          $58.00
   Brake Disc    (312 X 20 mm, Rear Right)  Brand: Zimmermann Coat Z
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----------------------------------------------------------------------
 34-11-2-227-172-M359            $64.50         1          $64.50
   Brake Disc    (315 X 28 mm, Front Right)  Brand: Zimmermann Coat Z
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----------------------------------------------------------------------
 34-11-2-227-171-M359            $64.25         1          $64.25
   Brake Disc    (315 X 28 mm, Front Left)  Brand: Zimmermann Coat Z
   (2000 BMW Z3 M Roadster Convertible)
   
----------------------------------------------------------------------
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### Package Number:        2 of 2 


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 PEL-HB227F-630                  $75.48         1          $75.48
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 PEL-HB135F-770                  $89.40         1          $89.40
   Hawk Performance HPS Brake Pads (Front) Note: 0.770in. thickness (2000
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 PEL-SB7100                      $12.75         2          $25.50
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[QUOTE=BlisterDick;25482810][b]PLZ keep door unlock for roach and spider[/b][/QUOTE]
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Old 07-15-2014, 01:52 AM GhEttOrAiD is offline  
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#1072  

GhEttOrAiD
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Quote:
Originally Posted by pyramid View Post
srsly, get in any 4th gen camero and on the passenger side front floorboard there is a huge hump...

that is where the catalytic converter is...

i always wondered wtf that was
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Old 07-15-2014, 01:52 AM GhEttOrAiD is offline  
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#1073  

lollersk8s
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Nice those rotors are boss

I'd skip the sensors though. For one you can use the old ones again unless you already popped one, for two you can simply short them out and forget they ever existed.
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Originally Posted by she nice
i do drink but it's not as effective for immediate relief
Old 07-15-2014, 02:27 AM lollersk8s is offline  
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#1074  

GhEttOrAiD
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I gotta get a 1/2->3/8step down so I can use my craptastic torque wrench

idk what i was thinking buying a 1/2" torque wrench
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Old 07-15-2014, 02:49 AM GhEttOrAiD is offline  
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#1075  

GhEttOrAiD
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Quote:
Originally Posted by ZainGray View Post

just ordered a bottle
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Old 07-15-2014, 03:25 AM GhEttOrAiD is offline  
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#1076  

RazorWind
 
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Quote:
Originally Posted by pyramid View Post
srsly, get in any 4th gen camero and on the passenger side front floorboard there is a huge hump...

that is where the catalytic converter is...

They plumb both banks all the way over there?
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Old 07-15-2014, 06:05 AM RazorWind is offline  
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#1077  

pyramid
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Quote:
Originally Posted by RazorWind View Post
They plumb both banks all the way over there?

Yeah, with a crossover pipe that ran literally right through a dent in the oil pan in classic GM fashion.

These are aftermarket pipes but in the stock routing location:

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Old 07-15-2014, 10:07 AM pyramid is offline  
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#1078  

GhEttOrAiD
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fackfackfackfackfack im freaking out i should have gotten stock pads

called pelican trying to swap em out now
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Old 07-15-2014, 10:53 AM GhEttOrAiD is offline  
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#1079  

RazorWind
 
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Quote:
Originally Posted by pyramid View Post
Yeah, with a crossover pipe that ran literally right through a dent in the oil pan in classic GM fashion.

These are aftermarket pipes but in the stock routing location:


Wow... is the LS1 like that too, or is just the LT1?
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Old 07-15-2014, 12:29 PM RazorWind is offline  
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