Fox T-Bird/Cougar Forums  

Primer and and speed is all you need.

great, thanks alot CougarXLS.....
*sniff sniff...*  I smell rice.....

Cougar XLS thanks i will try that next round of pics.

I kinda like the wheels on there...that PCV valve looks pretty angry...you know they sell 3/8" spacers for most intakes.

good luck,
Don

cant he do away with the PCV? he has a breather. i thought your soppose to run one or the other. not both. that might save a headache just getting rid of that if the intake doesnt hit the cover

Respect to pimp.

X3.... ....Be Proud of your cars and takecare of them and fix them up in your own style and give respect where it is due.

cant he do away with the PCV? he has a breather. i thought your soppose to run one or the other. not both

an open breather + PCV = unmetered air.......although the PCV valve itself is a controlled vacuum leak, the sample of air it feeds from (crankcase side), has to be taken from the air that has already been metered by the MAF....reason for the breather hose at the TB.

The system will work, but a lean condition during idle/part throttle could be possible, if the EEC can't "compensate" within its tpuppies limitation.......

Correct!  Running both basically adds an extra vacuum leak that the EEC-IV cannot account for.




I actually have a question concerning the PCV......
Doesn't the Holley intake have a provision in the back for one?  Curious as to why you're running your off the valve cover.

Usually a calibration us done with the PCV in place, so it compensates throughout the cal for the PCV leak, on mass air.  Now different PCV's flow differently, so each cal is matched to a PCV.  And when a PCV is open it is sucking in oil fumes too, which is a combustible mixture, so it's not really an air leak.

I would worry about actually pressurizing the case and blowing out seals if you remove the PCV.  It's no harm in leaving it in IMHO.

For you race fans out there, there are a few different breeds of PCV systems available. There’s the “Pan-Evac” system, and there’s the “Vacuum Pump” system. Both accomplish the same thing as the PCV system, with some substantial gains.

The “Pan-Evac” system is short for pan evacuation. The pan implying the oil pan, which sort of implies the crankcase. Don’t ask me; I didn’t name it. The Pan-Evac system uses tubes welded into the exhaust header collectors at a typical 15º angle. As the exhaust passes around the tube it creates a high amount of vacuum, pulling the crankcase gasses out, and blowing them out the exhaust. The EPA would obviously be all over this if it were a road vehicle. But it’s assumed that if you’re doing this it’s a race only vehicle. This is NOT at all recommended if you’re running lers of any kind. Again not something you’d necessary do if it were a race only vehicle. The oily gasses will put a residue on everything in the exhaust stream. A ler full of oil residue is a fire waiting to happen. Not good.

The “Vacuum Pump” style system uses a belt driven pump to increase the intake manifolds vacuum. The PCV system can be merged into the pump to create a high level of vacuum on the system.

Both of these systems actually make horsepower. That’s right. Crankcase pressure eats up horsepower. How you may ask? Simple. Imagine your engine is a syringe. Imaging pulling the syringe up and down; sucking in air and blowing it out. Now apply some pressure under the plunger by plugging the needle. Takes a lot more power to press it down huh? Well that’s what happens in an engine. The pressure built up in the crankcase (directly under all of the moving pistons) will apply force on the pistons, making it harder for them to move.

It also builds power in another aspect. If there is a high amount vacuum placed on the crankcase, the piston rings will be sucked up tighter to the cylinder walls. This will then create a better seal, and reduce blow by. The less gas that escapes around the piston rings, the more power the piston will make.

1. Open Breathers = no vacuum used, crankcase fumes, gases and pressure thrown out by pressure.

2. Open PCV System = PCV valve setup to crankcase (lower intake, valve cover) and an open breather to atmosphere. PCV valve = a controlled vacuum leak....Engine state dependent.

3. Closed PCV system = PCV valve setup to crankcase + breather hose to intake air stream. EFI MAF systems need to have the hose after the MAF sensor(=metered air). Engine state dependent. This is = to an open PCV system....the only difference is the source of air for the vacuum leak created by the PCV on the breather hose side.

4. Pan Evac = Vacuum induced to crankcase via exhaust flow. Crankcase sealed.

5. Crankcase Vacuum Pump = Vacuum induced to crankcase via off-line vacuum pump.

Shouldn't mix setups.

All i need right now guys is help with 2 things

Back springs and stuff how many of you guys use CHE or what works best on your cars? the car sits up high in the back.

Also whats the best brake set up for the price front and back i was thinking a SSBC kit on the front not sure on the back yet.