Patriot Stage 3 to TFS 220's - Gains on 402 stroker
02-16-2014, 01:16 PM
#1
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Patriot Stage 3 to TFS 220's - Gains on 402 stroker My current combo is below. I'm in the middle for freshening up the motor including decking the heads and new valve springs. I'm thinking by the time I have the heads milled and springs installed I'm going to have $500 in the rebuild. On the other hand I can pick up TFS as-cast 220's with mild hand touching up by one of our respected vendors, already milled and assembled for around $1900. Assuming I can sell my Patriots for around $850???, the difference in overall cost is about $550.
In your opinion would there be a enought gain to justify the extra cost?
What do you think a used set of Patriot Stage 3 ported 243's are worth?
Current mods below made 471 to the wheels.
TSP 402 - Eagle Crank, Eagle H-Beams, Diamond pistons (-10cc), 10.8scr
Patriot stage 3 heads
244/248 - - .619/.619 (w/1.85 Comp Pro Magnum RR's) - - 112 LSA
Fast 92 ported to approx 95mm
95mm TB & 100mm MAF
FLP 1 3/4 long tubes
4.10 gears
In your opinion would there be a enought gain to justify the extra cost?
What do you think a used set of Patriot Stage 3 ported 243's are worth?
Current mods below made 471 to the wheels.
TSP 402 - Eagle Crank, Eagle H-Beams, Diamond pistons (-10cc), 10.8scr
Patriot stage 3 heads
244/248 - - .619/.619 (w/1.85 Comp Pro Magnum RR's) - - 112 LSA
Fast 92 ported to approx 95mm
95mm TB & 100mm MAF
FLP 1 3/4 long tubes
4.10 gears
Last edited by 74u; 02-16-2014 at 01:36 PM.
02-23-2014, 03:03 PM
#3
You're probably not going to pick up enough power to justify the switch. The
runner volumes are similar and although the TF is a nicer piece I just don't
see it picking up more than 10-15 rwhp. Hardly worth the time and money
IMHO. Maybe consider selling your whole top-end w/cam and going LS3
intake manifold with either Texas Speed or Trick Flow 255 heads and a cam
designed to match. Unless you're dead set on staying cathedral then TF235
or AFR235s minimum.
runner volumes are similar and although the TF is a nicer piece I just don't
see it picking up more than 10-15 rwhp. Hardly worth the time and money
IMHO. Maybe consider selling your whole top-end w/cam and going LS3
intake manifold with either Texas Speed or Trick Flow 255 heads and a cam
designed to match. Unless you're dead set on staying cathedral then TF235
or AFR235s minimum.
02-23-2014, 05:45 PM
#4
I say do it. I have never been impressed with any Patriot heads.
02-24-2014, 10:07 AM
#5
Checkout the PRC as cast head. The runner is a proven performer & was based off our 227 runner. Just look at pics & flow data comparing all the as cast heads. I think you'll find the PRC head is a good bit better design than anything else out there.
Even though its a as cast head we built it based off our cnc programs & even cnc the chambers & valve guides for optimum air flow.
Even though its a as cast head we built it based off our cnc programs & even cnc the chambers & valve guides for optimum air flow.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
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02-27-2014, 02:48 PM
#9
The valve angle on the TFS are worth it alone. He is looking to save a bit of money with the AS CAST going for roughly $800 a head and the CNC going for $1200 a head. I think you will be pleasantly pleased with the Trick Flows.
02-27-2014, 06:56 PM
#10
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Well, I jumped off the cliff and ordered heads & cam from Tick. Tell me what you think. My goal was 125mph in a full weight 99ss. Now that I bought some premium heads I'd be pretty disappointed if I don't hit that 125mph
Can't wait to get this thing back together!
T.E.A TFS 225 CNC'd (nitrous exhaust port)
11.7:1cr to run on 93oct
239/246 - .624/.595 - 113+2
using my existing...
TSP LS2 402 stroker
Fast 92 opened up to 95mm
95mm Throttle body
1 3/4" FLP Headers
I'm sure I'd be better off with a 102 intake and 1 7/8 headers, but I still need a tune, rocker arms, push rods, gaskets, etc. No more budget for high dollar parts right now.
Can't wait to get this thing back together!
T.E.A TFS 225 CNC'd (nitrous exhaust port)
11.7:1cr to run on 93oct
239/246 - .624/.595 - 113+2
using my existing...
TSP LS2 402 stroker
Fast 92 opened up to 95mm
95mm Throttle body
1 3/4" FLP Headers
I'm sure I'd be better off with a 102 intake and 1 7/8 headers, but I still need a tune, rocker arms, push rods, gaskets, etc. No more budget for high dollar parts right now.
02-27-2014, 07:04 PM
#11
I would have aimed for a bit more lift with those heads honestly. Looks like an LSL intake and some smaller exhaust. I dont think the 1 3/4 will hold you back that much but I have not seen FLP's design in person.
02-27-2014, 07:10 PM
#12
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The car will see 20k miles/year as my DD. I asked Martin to spec me a cam that won't beat valve springs to death, mandatory sub 7000rpm shift point, and hopefully will not surge at low rpm/traffic jam speed where I spent a ton of time.
I'm sure we could have went much more aggressive but it's not worth it to me.
I'm sure we could have went much more aggressive but it's not worth it to me.
Last edited by 74u; 02-27-2014 at 07:29 PM.
02-27-2014, 07:48 PM
#14
Exhaust port from my experience cares very little about lift due to the pressure differentials seen in the exhaust port vs cylinder on the power stroke.
The exhaust port cares much more about timing events.
Intake is another story thus the use of the lsl intake lobe.
I think this is a great combo that will make more HP and more torque than the old heads, larger cam and 1.85 rockers.
The exhaust port cares much more about timing events.
Intake is another story thus the use of the lsl intake lobe.
I think this is a great combo that will make more HP and more torque than the old heads, larger cam and 1.85 rockers.
02-28-2014, 10:47 AM
#17
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yes 408, martin speced my set up also...its back together and several heat cycles were completed yesterday. hopefully it'll be buttoned up today. i will report back. interested to see how mine compares to what you've put together. hoping for a 500/500ish result for my street driven c5...my specs are very very close to what you put together.
03-05-2014, 09:41 PM
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yes 408, martin speced my set up also...its back together and several heat cycles were completed yesterday. hopefully it'll be buttoned up today. i will report back. interested to see how mine compares to what you've put together. hoping for a 500/500ish result for my street driven c5...my specs are very very close to what you put together.
j/k andy...