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Nimitz
11-20-2005, 05:03 PM
Im going to stay N/A and want to make some good power but still be pretty conservitive (sp). going with a Head/cam package and was wondering what a good CR would be...

looking into the patriot heads...what will the CR be with these and how much power with that cam?

Camshaft Included: Yes
Intake Manifold Included: No
Fuel Delivery Style: Fuel-injected
Timing Chain and Gears Included: No
Lifters Included: No
Gaskets Included: Yes
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 59
CNC Machined Combustion Chamber: Yes
Combustion Chamber Style: Double quench
Intake Runner Volume (cc): 225
Exhaust Runner Volume (cc): 83
CNC Machined Intake Runner: Yes
CNC Machined Exhaust Runner: Yes
Intake Port Location: Standard
Intake Port Shape: Pent-roof
Exhaust Port Shape: D-port
Exhaust Port Location: Standard
Spark Plug Style: Angle
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.02
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.57
Valve Springs Included: Yes
Outside Diameter of Outer Spring (in): 1.285
Damper Spring Included: Yes
Number of Springs Per Valve: Single
Retainers Included: Yes
Retainer Material: Titanium
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: PC seal
Valve Stem Seal Material: Teflon
Rocker Arms Included: Yes
Rocker Arm Style: Full roller
Rocker Arm Studs Included: No
Rocker Arm Nuts Included: Yes
Guideplates Included: No
Pushrods Included: No
Valve Covers Included: No
Valve Cover Mounting Style: Centerbolt
Accessory Bolt Holes Drilled: Yes
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze intake/Phosphorous bronze exhaust
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-angle
Valve Seat Material: Steel
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Cylinder Head Bolts Included: No
Quantity: Sold as a kit.
Notes: Camshaft specs are 232/230, .580 in./.578 in., 110 lobe separation angle.



or should I go with these?

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 64
CNC Machined Combustion Chamber: No
Intake Runner Volume (cc): 225
Exhaust Runner Volume (cc): 83
CNC Machined Intake Runner: Yes
CNC Machined Exhaust Runner: Yes
Intake Port Location: Standard
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.020
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.570
Valve Springs Included: Yes
Damper Spring Included: No
Number of Springs Per Valve: Single
Retainers Included: Yes
Retainer Material: Titanium
Locks Included: Yes
Lock Style: 10 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: PC seal
Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: No
Accessory Bolt Holes Drilled: Yes
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze intake/Phosphorous bronze exhaust
Valve Seats Machined: Yes
Valve Seat Machine Style: 5-angle
Valve Seat Material: Steel
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold as a pair.
Notes: Head gaskets and bolts are included.


which heads for a daily driven NA car...the 2nd heads will have a comparable cam... whats the CR with each?

Thanks

Chad
Mr. Luos
11-20-2005, 05:32 PM
Not 100% accurate sometimes...but should be great with stock pistons.

http://www.c5frc.com/calculators/Compression_Ratio_Calculator.htm
Nimitz
11-20-2005, 06:00 PM
Not 100% accurate sometimes...but should be great with stock pistons.


sooo... 10:9:1 and 10:3:1 10:9 streetable?

what kind of power do you think I'd make with that head/cam combo...any reason to NOT go for that combo?

Chad
Mr. Luos
11-20-2005, 06:06 PM
10.9:1 is streetable. Just gotta make sure your tune is spot on.
Nothing but premium fuel as well, obviously.
Nimitz
11-20-2005, 06:12 PM
10.9:1 is streetable. Just gotta make sure your tune is spot on.
Nothing but premium fuel as well, obviously.

yeah thats what I figured...

this should make a beast of a motor...going into a FC3S... (2nd gen rx7):drivin: :woot2:

Chad
Nimitz
11-20-2005, 07:23 PM
is that cam to big for a DD car?

again what are some ideas about power numbers? it'll have headers and exhaust.

Chad
Mr. Luos
11-20-2005, 07:53 PM
Might be a little much for a DD.

Although everyone's opinion is different when it comes to what can be driven everyday.
Nimitz
11-20-2005, 08:07 PM
Might be a little much for a DD.

Although everyone's opinion is different when it comes to what can be driven everyday.

Thanks....pretty small crowd around it seems. but I appreciate your advice.

Chad
GatorSS
11-20-2005, 08:14 PM
is that cam to big for a DD car?

again what are some ideas about power numbers? it'll have headers and exhaust.

Chad
With the right tune, you could tame that thing enough for it to be streetable.
Nimitz
11-20-2005, 08:35 PM
Camshaft specs are 226/226, .585 in./ .585 in., 112 lobe separation angle.

I could go with that cam also... quite a bit more mild compared to

Camshaft specs are 232/230, .580 in./.578 in., 110 lobe separation angle

Chad
Hi-Po
11-22-2005, 06:21 AM
There is a FORSURE way of doing CR. Calls for a little blueprinting , but if you want to know there are specific formulas. I did not check out that site Mr. Luas posted thou.CR= (SV + CV)/CV........ SV- Swept volume .... CV- Compressed volume. I dont know if your trying to get this involed but there is a way to figure out EXACT. Going to need burettes and things of that nature. Just my .02$
seriousblack
12-18-2005, 06:54 PM
What about 11:1 CR For a street head?-I'm considering purchasing Patriot's CNC LS6 Style heads w/above mentioned CR. I have an SLP Cam- 576"/571" LIFT int/Exh w/ 234/232 duration w/ 113 LSA,Also installed Comp Cams Valvetrain upgrade kit complete w/ Pro-Magnum roller rockers -except for lifters-their factory stock-Thanks :)
MadSeason
12-18-2005, 06:59 PM
What about 11:1 CR For a street head?-I'm considering purchasing Patriot's CNC LS6 Style heads w/above mentioned CR. I have an SLP Cam- 576"/571" LIFT int/Exh w/ 234/232 duration w/ 113 LSA,Also installed Comp Cams Valvetrain upgrade kit complete w/ Pro-Magnum roller rockers -except for lifters-their factory stock-Thanks :)

I'm running 11.2:1 on the patriot LS5 heands with 59cc. It's a daily driver and I have the same slp cam if yours is 51013. Very Streetable
GatorSS
12-19-2005, 12:17 PM
What kind of fuel do you run with that 11.2 CR for your daily driving?
seriousblack
12-19-2005, 01:22 PM
Hey Thanks for the info, sounds like I'll be running 11:1s also considering water/methonal shot to super chilll the intake -They work better on Forced induction units but the guys @ www.snowperformance.com (They make a kit designed for GM MAF Systems) say it works well on NA motors-plus safer and cheaper than Nitrious systems-just for your FYI P.S. what are your Flow numbers and valve sizes on your Patriots? Later :thumbup:
MadSeason
12-19-2005, 01:22 PM
What kind of fuel do you run with that 11.2 CR for your daily driving?

93 Octaine, sometimes it has 10% ethanol in it, thats what it was dyno tuned on so I get no knock
seriousblack
12-19-2005, 01:23 PM
and yes I have the same part number SLP Cam you mentioned :)
MadSeason
12-19-2005, 01:25 PM
and yes I have the same part number SLP Cam you mentioned :)

It's a nice cam for being a few years old. I'm going to take it out and throw it in the camaro and put in a custom cam made for my setup and high compression into the firebird
seriousblack
12-19-2005, 01:34 PM
So what do You think about running a Methanol unit? U sound like you know what your doing? any ideas, check out the website
seriousblack
12-19-2005, 01:37 PM
My error its www.snowperformance.net :sillyme: