Frank is right (as usual) but I'd still spend the money on a good hat even at low boost because the poor airflow distribution characteristics of junky hats will lead to some cylinders being leaner than others and may cause detonation issues. This isn't as big of a problem at lower boost / volume compared to high boost / volume but I strongly believe buying a good hat is money *WELL* spent. All sorts of driveability and performance issues can plague the engine with a poor hat and a good one isn't much more money.
There are a lot of bad hats out there and only a few good ones. I like SDCE's hat, CSU's hat, and the EV hat. I know Scott @ SDCE put a LOT of time into doing flowtests on all the hats out there, and I know he spent months doing the R&D on his hat to make sure it would deliver a very uniform amount of air to each barrel in the carb with all sorts of flowrates and boost levels with the hat pointed in any direction.
__________________
1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
Last edited by Blown353; 07-03-2006 at 10:09 PM.
|