I know this question has been asked a million times, but I keep seeing conflicting info. I make 358rwhp right now. I am adding AS&M shorties and Y-pipe w/ high flow cat, (need to stay emissions legal) 30lb SVO injectors, and a custom Tune From PCM for less. My question is, am I at the point where a 52 MM TB is worth it yet or is the 48 still o.k? How much would I gain at this point? Third and final question is what brand is the best if I should get one? Thanks guys for any help.

 

Can anybody help me???? Thanks

 

Rule of thumb is that unless you're doing heads and a cam, a larger throttle body is unnecessary.

 

Not really necessary to get a 52MM TB yet, but you're going to see a very large jump in power once the headers go on. I wouldn't be surprised at all to see you over 400.

Not necessary, but every little bit helps. If you do get one, don't skimp. Arizona Speed and Marine is the way to fly. I had the pleasure of looking at one of their 54MM units a few days ago, and it was a work of art.

 

You think I will get 40rwhp with just those mods? I was just figuring about 25rwhp. I hope your right.

 

Yeah, I think you'll see 40. You're making pretty decent power through stock manifolds. On a stock motor, people usually see between 25-40 from headers, that's without the blower that you've got.

Let us know how much you pick up.

 

Thanks again fastbird, I will definitely let you know how I make out.