go with the holley 700 or 750 and racing beat or jay tech intake manifold whichever u can get ur hands on... believe me normally aspirated.. u can get more horsepower than u can get from fuel injection.....

 

This thread has nothing to do with NA vs turbo. Although I can't wait to hear how spending half the money on a carbed NA is going to get you a faster car. Please back that up with some engineering instead of emotion.

 

Ok, it's time to put up or shut up.
I want you to tell me how carbs make more power. I don't care what you like or don't like, I dont want to hear about cost. I want to know how "u can get more horsepower than u can get from fuel injection". I want a proper explanation based on some solid engineering.
And I don't want to hear that the inlet manifold and TB can't flow as much as a big carb. Even if that is true, there's a huge range of aftermarket EFI hardware out there, so that's a dumb reason to use a carb.

 

My worked over FB can't touch my TII, so don't pull **** out of your ***....

 

Why does it always end up being "us versus them" crap... *sigh*


-Ted

 

I'm with you NZ. The carb and FI intakes can both supply the same amount of air/fuel mixture to the engine therefore neither is going to make more HP. The big difference is the amount of control the computer allows you with FI. The changes can be made while the engine is running. You can't replace a jet sitting in the car while its running or adjust the mixture screws. These are things you can do easily with an aftermarket FI setup. Admitedly it cost more but such is the price you pay for all that new technology.

On a side note it you shop carefully you can get an aftermarket FI system for the price of a new carb setup.

 

If you compare the two you need to do it with the same length intake runners. This is where a carb may make more power.

If you shorten the intake runner length of the intake manifold you will make power at a higher rpm. RPM is HP. This is the only way one or the other (properly tuned of course) would make more power.

So, longer runner more torque, but less RPM, and HP. Shorter runner higher RPM more HP but less bottom end torque.

If you were to compare them with the same intake runner length, there would be no difference.

 

I agree with Turtle's TII, but fuel injection will give you better emissions, mileage and performance through more precise tunability (I just got a laptop to help tune my vette). BUT we aren't too concerned with all that for this car. Tom will be buying a new body style rx7 soon, but wants to turn some decent times in the meantime. Besides, simplicity is cool. That is one reason I like the rotary motor, but the 6-port intake manifolds and systems are anything but simple.

Oh yea, update on the project...it will be dyno tuned at Performance Specialties in Pottstown as soon as we get all the parts and put it together. I'll post the dyno results of this set up in a couple weeks, hopefully sooner.

 

damn, i'm getting the carb kit..

 

you da man gravedigger!