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Problem is that it changes with rpm. Thats the actual compression/pressure that the air fuel is subjected to before ignition. Thats what you would see on a pressure gauge when looking at cranking pressure ......... valve event timing, duration , lsa all has an effect but that effect changes...

About .1 lol. on a 302 to a 306 everything else being equal crapola Just trying to get the facts straight and clear things up. Not the best way to gain compression on a 302 for sure and really not a concern when selecting pistons for the new overbore as the pistons/heads themselves will be...

^:Word: Pump gas, great power potential and better mileage (volumetric efficiancy)

Your not trying to put the same amount of air in the bigger area. Your going to pull in more air with a bigger bore. I'm not talking valveshrouding just volume. A bigger bore has a bigger volume, the bigger volume will create a bigger vaccuum. The point is that when the piston is at the bottom...

Going to an overbore increases your compression ratio by increasing your displacement at bdc. Your chamber remains the same size at tdc. Bigger cylinder being compressed into the same size chamber= higher ratio

Tire Diameter in inches multiplied by RPM multiplied by .002975 then divide it by your rear gear ratin and that will be mph in fourth. 26 tire X 5000 rpm X .002975 =386.75 386.75 divided by 3.55 gears =108.9 mph now if your fifth gear ratio is stock 90-93 t5 its .68 Divide MPH in fourth by...

The 4.30 will multiply your torque more than the 3.73 in the same tranny gear. Meaning your car will be faster in 4th gear with the 4.30's as opposed to the 3.73's. This follows in every gear. Now if the speed you are starting from would allow you to downshift into 3rd with the 3.73's You would...

The 4.30 will multiply your torque more than the 3.73 in the same tranny gear. Meaning your car will be faster in 4th gear with the 4.30's as opposed to the 3.73's. This follows in every gear. Now if the speed you are starting from would allow you to downshift into 3rd with the 3.73's You...

Na he needs mo fozhizzle in the rizzle yo. Downforce kid. Nuttin like a triple decker to get some pressure on them ultrawides yo. Or you could listen to him ^^^^ :nice: Battery in the back helps as well.

Thats nothing. My 347 can call the Po'lice from over a mile away :rlaugh:

:nice: Nice. I'm glad to hear you had no major issues. That things gonna be a beast. You have 4 lug or five ??? Got slicks for that thing yet ?

How much was the tuning worth. I picked up about 30 on an N/A custom chip.

Gazibillion give or take a few for cloth or vinyl.

#'s in sig. Wish I had not used a stock block hat way I could hit a 250 shot without worry.

I'll ditto your tripple of there double :D

In order for a smaller engine to make equal power it must do so at a higher rpm. Lack of low end torque/response/vacuum and poor idle quaility is also associated with the higher rpms power curves and thus deemed to be not as streetable. Higher rpms also wear internal parts faster and due to...

So you don't end up like this guy at the end of the day !!!

Im using a Powermaster 140 amp. Its single wire so you have to kick the revs up to get it to turn on when you first start the car.

Exactly. And there is a reason why. I'll second the heat. Get a cheap propane torch, comes in real handy.

Just a little safety note:Impacts, swivels, and fingers make for an emergancy room visit. Be very careful of hand placement.