RE: Patriot Alum Heads 185cc $$SALE$$ Pics...>
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/1/2007 3:28:56 PM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
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ok, got some updates. Heads are on and we have 3 more sets in stock. We have 3 variations now available after working with Gunnar at Patriot to set up so THR Specials.
Bare Set - Castings only 185cc, 60 cc combustion chamber, no valves, springs, etc $499/pair $25 freight for Forum Members
Assembled Complete - 185cc, 60 cc chambers, .550 lift springs, $850 Shipped ** Limited Time offer for Forum Members**
Assembled Upgrade Complete - 185 cc, 60 cc chambers, .650 lift springs, $1075 shipped. Forum Members Special
We are going to try to dyno the shop car tonight so stay tuned for results before and after.
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/2/2007 8:18:15 AM
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kaik1969
Posts: 72
Joined: 6/26/2007
From: cincinnati
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Whats the result? I can't wait.
_____________________________
89 lx 5.0,stock motor,off road H,flows, underdrive,
subframe,G.T wing,96 Cobra wheels, Spec stage 1
155k
dyno 216hp 263lb.
When in doubt, Gas it out!
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/2/2007 10:32:43 AM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
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OK, here are the dyno numbers from last night with the new heads installed and properly broken in and rockers set.
First, Here's the Build Specs:
84 GT
THR 306 ARP Rod & Main Bolts, Balanced with Forged Pistons $1599
B303 Cam $165
ProForm 1.7 3/8 stud rockers $175
MAC LT Headers $237
MAC Pro Chamber $256
MAC Dumps $229
Felpro Gaskets $110 (Complete Motor set)
4.10 Gears $189
Edelbrock Air Gap Dual Plane intake $249
Holley 4BBL Carb 650 CFM $340
Basics:
T-5 Transmission with 8.8 swap Rear End, Before numbers are with stock E-7 Heads, After numbers with the Patriot 185 Alum Heads.
BEFORE Dyno Results after tuning, jetting, timing, fuel pressure adjustments to maximize performance.
274.9 RWHP @ 5118 RPM
302.4 RWTQ @ 4323 RPM
AFTER Dyno Results after tuning, jetting, timing, fuel pressure adjustements to maximize performance.
338.7 RWHP @ 5659 RPM
343.7 RWTQ @ 4319 RPM
NET GAIN:
+ 63.8 RWHP Peak
+ 41.3 RWTQ Peak
+ 30 RWHP Average Gain (2500-5800 RPM)
+41 RWTQ Average Gain (2500-5800 RPM)
This is a serious gain in both HP & Torque that shows not only in the dyno results but in real world seat of the pants! Let us know if you have any other questions on this project. We'll have nitrous numbers once we get a built 8.8 under the car (stock axles right now), and some track times in the near future. If anyone is interested in a specific build up for testing, let us know and we'll try to make it happen so you can see real world results from THR.
Here are the graphs to show the difference in performance with the new heads installed and tuned.
Before & After Results laid together for comparison.
*** All Numbers from our In Ground Mustang Dynometer 4th gear pulls with Load for accurate A/F and performance calibration. ***
< Message edited by Texas_Hot_Rods -- 11/2/2007 10:42:53 AM >
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/2/2007 12:44:55 PM
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Stroked91
Posts: 337
Joined: 4/24/2007
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how much better can these heads flow over ported gt40s iron
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/2/2007 1:23:49 PM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
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No comparison, you'll still pick up power and with the alum they'll shed weight and dissapate heat more quickly allowing a more aggressive timing curve. The GT-40's are a nice head but can't compare to a 185 cc runner with 2.02 valves. I had a set of Extrude Hone Ported/Polished GT'40 irons on one of my stangs that had bigger 1.84 & 1.54 valves installed and they still fell 50 HP short of an AFR 185 on a mild cammed 302. Hope this helps!
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/2/2007 1:45:55 PM
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Stroked91
Posts: 337
Joined: 4/24/2007
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i saw the price of your heads and was thinkin what route i wanna go cause i was about to drop 500 to port my gt40s out
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/2/2007 2:00:28 PM
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Stroked91
Posts: 337
Joined: 4/24/2007
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yea def some efi numbers would be nice cause im lookin to get my heads by the end of the month
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/4/2007 6:39:50 AM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
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You'd be much better selling the GT40's as they can bring as much as $500 if in good shape, take the other $500 you wanted to spend and get a set of alum heads, and put the rest towards the other items you'll need like gaskets, ARP Head Bolts if you don't have them, dbl roller timing chain, rockers, etc. You'll make alot more power and save weight as well. If you don't have a cam, you can roll that into the picture as well and pick up even more with more RPM on tap.
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/4/2007 6:45:40 AM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
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quote:
ORIGINAL: Texas5.0
I am not familiar with carbed applications at all but the numbers seem good to me?
Any plans for EFI tests?
We had originally planned on an EFI test but got to pulling the motor as the baseline showed oil pressure dropping pretty hard on the dyno. Now we're going to throw in a carbed 357 inch alum headed monster and a C4 to make it another THR street beast.
*** If any one wants to do an article on a mild combo EFI car I'll work out a sponsored package deal with some goodies. It would have to be dyno'd before and after at the same place for accurate numbers. Let me know if any of you guys/gals are interested. Thanks! ***
P.S. Carbs will almost always make more power if jetted correctly. EFI is great, but the carb is the power king when it comes to the race track.
< Message edited by Texas_Hot_Rods -- 11/4/2007 6:54:14 AM >
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/4/2007 6:51:39 AM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
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quote:
ORIGINAL: Stroked91
yea def some efi numbers would be nice cause im lookin to get my heads by the end of the month
What are you running for combo right now?
EFI to carb would be within 10-15 hp in most cases as long as the tune is the same and the EFI induction is not limiting airflow (ie. stock EFI manifold vs carbed single plane or hi rise dual plane) If the combination is set up correctly, the carb will most likely gain some power, especially up top, but you'd still be in the same ballpark for the EFI numbers.
One more thing to note is that you've got to check PTV (piston to valve) clearance on all applications. If you guys/gals would want us to post an article on the proper way to check for clearances when doing a cam/head swap let us know and we'll post up some more pics.
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/4/2007 10:25:02 AM
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Stroked91
Posts: 337
Joined: 4/24/2007
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lookin at a cobra intake - e303 cam - 1.72 rockers - maybe a 70mm throttle body. im only looking at tryin to get a 300hp daily driver. just something to have some fun in. i was gonna use the gt40s but then i saw the post about the heads you have so i figured i would take a look and see
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RE: Patriot Alum Heads 185cc $$SALE$$ Pics...> - 11/5/2007 10:38:32 AM
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Texas_Hot_Rods
Posts: 194
Joined: 12/26/2006
Status: offline
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Do you already have the parts you posted or do you need them? The alum head would make hitting the 300 rwhp mark much easier. I ran a set of Iron GT-40's on my stock 302 that had been Extrude Hone ported and polished with bigger valves, and E cam, 1.6 rockers, cobra intake that was also Extrude Hone ported, long tubes, O/R H, dumps, 75 TB & C7L 76 MAF with 24's and a custom cold air kit. With more than 20 pulls on a dyno to tune it on a 0 deg day at Anderson Ford, we barely netted 298.6 rwhp.
He, Rick Anderson, was amazed as my buddy with a TFS headed GT40 intake and the same mods only made 287.6 RWHP with a custom tune from Rick's PMS system through his AODE. So if you're looking for 300 rwhp with the GT-40's, it most likely won't be easy. With the alum heads and the same combo with a 5 speed, 300 RWHP should be pretty achievable.
_____________________________
Brian Metzger
Texas Hot Rods
www.texashotrods.com
877-50-STANG
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