When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
on a stock c5 with ls6 intake would porting and polishing the throttle body or buying little bigger be any help for power or just a waste of money? thanks
YES--- have it done profesionally--you can really mess a fly by wire TB up if you don't know what you're doing due to it does not ave an IAC---It will only make maybe 3-5 more RWHP however the throttle response is far superior maing it quicker-
As far as getting a LARGER TB--my opinion would be NO--- Not needed on a stock modded type engine--Unless---you consistantly run it beyond 6400--- You have bigger cubes--much more compression--or have a very large camshaft with LT headers---
Check my profile---I have approx 400 RWHP on an A4 and am still running the stock TB and MAF-----
Try Shaner--he is very good and reasonable