Ok so I am ordering the following:

Brian Crower Stage 2 Cams (NA type)
Brian Crower TI Valve Springs
Brian Crower Stainless Valves

Now I am looking at a throttle body but I can choose between 60, 66, 68 and 70mm. I was wondering what should I go with? I know its not always the bigger the better so i wanted to get someones opinion who knew more.

 

I went with a 64mm ProFlow. They will rework your throttle body and increase it from 62.5mm to 64mm. It works like stock but has a little more.

 

interesting. but I am still just not sure if i really need something bigger. i just want to know what size will just be overkill

 

Anything over factory is overkill.

 

As I was told by XViper some years back, unless you port the intake manifold an larger TB won't do anything.

I purchased a 70mm throttle bady and ported and polished the intake manifold to match that way I was able to get the benefit of the larger TB.

 

Have you read about the Brian Crower cams? Or did they release something else lately???

jimknapp (Bonneville Salt Flat guy with his S2000 powered rocket) said that the capability of a normally aspirated throttle body is reached at around 50hp/sq in of throttle body area. This equates to 300hp for stock. So the most you will gain is throttle response... and maybe a hp or two because you might increase volumetric efficiency SLIGHTLY.

 

Do some research on BC cams...they don't work unless something changed...and they haven't advertised on here that they came up with a better profile...there was lots of advertisement when they first came out only to have vendors pull them when testing showed power losses.

There really aren't any decent cams for this car.

And you will need to go FI before a larger TB is going to do much good.