Trick Flow heads or Patriot Performance
05-08-2010, 07:31 PM
#1
Thread Starter
Join Date: May 2010
Location: VENEZELAN
Posts: 2
Trick Flow heads or Patriot Performance
hello to every ones here. im from venezuelan and i got a 2001 gt. im thinking to take in my stng a pair of trick flow new heads or patriot performance stage III, witch one its the best, and what cam its recommended, i was thinkin on :
stage 2 N/A cms :560/.575 lift, 225/235 .050" duration, 108 LSA
or
hitech stage 2 N/A: 234/230 duration, 111 lobe sep, .550/.500 lift
witch one its the best ,ore if there is another best in the market tell me please.
i use 125 hp spray.
im really ancious to reads yours answers to take my finally chose. thanks
and excuse my lenguage fails.
stage 2 N/A cms :560/.575 lift, 225/235 .050" duration, 108 LSA
or
hitech stage 2 N/A: 234/230 duration, 111 lobe sep, .550/.500 lift
witch one its the best ,ore if there is another best in the market tell me please.
i use 125 hp spray.
im really ancious to reads yours answers to take my finally chose. thanks
and excuse my lenguage fails.
05-08-2010, 08:22 PM
#3
5th Gear Member
Join Date: Nov 2006
Location: MA
Posts: 2,402
OP I have CMS 2.5 blower cams an love them but my lsa is 114 i believe. Jim is correct with similar cam characteristics his cams with lower lsa of 108 will outperform on with bigger lsa but as impacts the following is if a street car you want a larger power band range.
EFFECTS OF CHANGING LOBE SEPERATION ANGLE (LSA)
Tighten (smaller LSA number)---- Widen (larger LSA number)
Moves Torque to Lower RPM ---- Raise Torque to Higher RPM
Increases Maximum Torque ---- Reduces Maximum Torque
Narrow Power band --- -------- Broadens Power Band
Builds Higher Cylinder Pressure ---- Reduce Maximum Cylinder Pressure
Increase Chance of Engine Knock ----Decrease Chance of Engine Knock
Increase Cranking Compression ---- Decrease Cranking Compression
Increase Effective Compression ----Decrease Effective Compression
Idle Vacuum is Reduced ----------- Idle Vacuum is Increased
Idle Quality Suffers ----- -------- Idle Quality Improves
Open Valve-Overlap Increases ------ Open Valve-Overlap Decreases
Closed Valve-Overlap Increases ---- Closed Valve-Overlap Decreases
Natural EGR Effect Increases ------- Natural EGR Effect is Reduced
Decreases Piston-to-Valve Clearance ---- Increases Piston-to-Valve Clearance
EFFECTS OF CHANGING LOBE SEPERATION ANGLE (LSA)
Tighten (smaller LSA number)---- Widen (larger LSA number)
Moves Torque to Lower RPM ---- Raise Torque to Higher RPM
Increases Maximum Torque ---- Reduces Maximum Torque
Narrow Power band --- -------- Broadens Power Band
Builds Higher Cylinder Pressure ---- Reduce Maximum Cylinder Pressure
Increase Chance of Engine Knock ----Decrease Chance of Engine Knock
Increase Cranking Compression ---- Decrease Cranking Compression
Increase Effective Compression ----Decrease Effective Compression
Idle Vacuum is Reduced ----------- Idle Vacuum is Increased
Idle Quality Suffers ----- -------- Idle Quality Improves
Open Valve-Overlap Increases ------ Open Valve-Overlap Decreases
Closed Valve-Overlap Increases ---- Closed Valve-Overlap Decreases
Natural EGR Effect Increases ------- Natural EGR Effect is Reduced
Decreases Piston-to-Valve Clearance ---- Increases Piston-to-Valve Clearance
05-09-2010, 03:09 AM
#5
4th Gear Member
Join Date: Jul 2006
Location:
Posts: 1,399
OP go with the cms cams. i think they will be great for what you are doing. i loved mine
05-09-2010, 08:28 AM
#7
6th Gear Member
Join Date: Jan 2007
Location: MI
Posts: 5,884
When i made that thread i had only just begun my research. I'm was very fortunate to have run into into guys like Nick and John Tymensky, as it totally opened my eyes.
