Why Radix guys need big ones......tbs

Reply Subscribe

Thread Tools

Search this Thread

Jun 1, 2006 | 09:30 PM

#11

YenkoST

TECH Fanatic

iTrader: (11)

Joined: Feb 2005

Posts: 1,549

Likes: 4

From: GA

Quote:

Originally Posted by billreid1@***.net

Generally speaking, on a GENI or GENII small block Chevy... for the most part they do not have the head flow capability as a GENIII/IV engine... which leaves open the argument for/against larger throttle bodies. Does a 350 Tuned Port Injection (or even an LT1/4) motor benefit from changing over from a stock 48mm to, say, a 52mm throttle body? Not much. Increase cube size to a 383, throw on a SuperRam, and a good matched set of heads/cam and then you will see added benefits of a larger throttle body... naturally aspirated or blown. Overall it takes considerable more effort (mods) for an older generation small block chevy to benefit from added breathing capability.

Bill

You are correct but throwing on a bigger TB on a TPI engine is not going to net 50rwhp either like BlownChevy. You are doing good to get about 15rwhp out of it. Me personally, I saw more under the peak power then anything with the 58mm. However, stock engine, you will get about 8 rwhp on a TPI/LT1 engine. That is NA....blown would be a little bit more. By the way, I have the StealthRam.

Jun 2, 2006 | 01:11 AM

#12

AintNoHo

Thread Starter

Launching!

Joined: Dec 2005

Posts: 230

Likes: 0

From: San Diego,CA

Quote:

Originally Posted by mjhoward

Or a heater hose. Or a

I tried panty hose and the wife says you're right.

blownchevy- 505hp is a nice round number and nothing to sniff at, yet I bet there's more to be had before diminishing returns. The intake on my V7 charger and many other turbos is 4in or about 100mm. Some head units use 5 inch intakes. This hints at even greater potential for Radix with more air.

Jun 2, 2006 | 06:01 PM

#13

SCIV

TECH Apprentice

iTrader: (7)

Joined: Oct 2004

Posts: 329

Likes: 0

From: Round Rock, Texas

Being a Procharger guy (and I haven't tried it yet), the stock filter with the P1 kit is killing it if you are running increased boost. Bad Apple says he got 35 hp (can't remember if it was rear-wheel) by relocating the filter & running the biggest one he could find. I guess that proves the pre-compression restriction theory.