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expected gains with Patriot heads?

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Old 07-28-2008, 08:26 AM
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Default expected gains with Patriot heads?

Thursday some friends and i are going to be installing a set of new patriot stg 2 heads 243 castings milled.025 on my 98 T/A. I am hoping for 40 rwhp, does this sound about right?Current best time at the track is 12.08 at 112 mph, do you think i should be hitting 115-116?I hope i am not dissapointed being that i currently have the worst ls heads out there...The car will be tuned also after the head install. Thanks for any input.
Old 07-28-2008, 09:44 AM
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Dont you mean Best time is 12.54@109 ....You and Bald Basterd gonna put those heads on this week? Good luck man...wish I didnt live so far..I would come out and WATCH
Old 07-28-2008, 04:30 PM
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ok let me rephrase that, the best time the car has ran is 12.08 with current setup with previous owner driving. Just wondering if anyone has installed these heads that had 98 heads and their gains.
Old 07-28-2008, 04:42 PM
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My patriot ls6 stage II 59cc gave me 43rwhpon my old setup. Good luck
Old 07-29-2008, 06:40 AM
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My patriot stage 1 heads and a 224-228 cam gained me a full second in the 1/4. went from 12.6xs to 11.6x then added a fast and got to 11.4xs.
Old 07-29-2008, 07:52 AM
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My ported and milled Patriot 243s suck *****. I'd be surprised if they gave me 15rwhp. They aren't Stage 2s, though, just the junky $900/pair heads (damn previous owner and his budget setup...).
Old 07-29-2008, 08:21 AM
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^That being said though, he is looking for the same mph you have with your "junky setup".
Old 07-30-2008, 09:11 AM
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cool, if that was with stock 243 castings from your '04 i would think i would gain more than 43 rwhp going from my 98 heads, i just dont know the difference in hp from 98 heads and 04 stock heads.

Last edited by jhall; 07-31-2008 at 12:02 AM.
Old 07-31-2008, 11:24 AM
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Originally Posted by ScreaminRedZ
^That being said though, he is looking for the same mph you have with your "junky setup".
He's also looking for that trap through a Strange, 4000 stall, and auto. With the better heads, though, it should more than makeup for that at any decent track.
Old 07-31-2008, 03:24 PM
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Default lol...

Originally Posted by jhall
cool, if that was with stock 243 castings from your '04 i would think i would gain more than 43 rwhp going from my 98 heads, i just dont know the difference in hp from 98 heads and 04 stock heads.
not enough to matter at the track...my buddies car 98 had 241s swapped on when his cam was done...it trapped the same as my 98 with the 806s...similar cams similar setups...id look for more along the lines of 25rwhp..
Old 08-04-2008, 12:50 AM
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I have the PP stg 2 heads and I frequently trap 116 117 and an occasional 118 depending on the DA. Cam is a 224/227 563 569 and a Yank SS3600

Dyno didnt tell the whole truth put down 374hp and 360tq

Best time in good air, Race weight 3620

60': 1.575
1/8 Mile ET: 7.357
1/8 Mile MPH: 92.45
1/4 Mile ET: 11.588
1/4 Mile MPH: 116.93
Old 08-04-2008, 01:16 AM
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Thanks WWS699, i am hoping for results like yours, dyno numbers really dont mean anything to me, it will just be more fun to beat higher dyno number cars at the track...
Old 08-06-2008, 10:33 AM
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just courious what you guys think my dyno numbers will be? I just started it up for the first time after the head install and it sounds a little meaner going from 10:1 compression to 11.2:1. i still need to heat cycle it once more and get it tuned tomorrow. I will then see if there is much noticable power gain...I am planing a dyno trip within the next couple weeks to fine tune the tune,luckily the guy i bought the car from is a good tuner and is hooking me up.
Old 08-06-2008, 10:53 AM
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i remember an old issue of GM HIGH TECH where they installed a set of the patriot stage 2 LS6 heads on a car with a 231/237 already on it. and the heads put out 40 rwhp!! so i would say for the price the patriots are a good head.
Old 08-08-2008, 07:39 PM
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well, i guess people can talk **** about Patriot heads all they want but i feel a noticable difference with the ones i just installed. With the compression increase and better flow the mid range power is much better and instead of ******* out at about 80 mph, it just keeps pulling. I am definally happy with my setup now. i would bet atleast a 40 rwhp gain. I will be dynoing the car within the next couple weeks and will post up the graph.Even though i dont have before numbers.

Last edited by jhall; 08-08-2008 at 09:16 PM.
Old 08-09-2008, 03:36 AM
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Patriot Heads seem to be slightly inconsistant, but It's pretty hard to make ported heads LOSE hp, unless either you are trying, or just have no clue.
Old 08-11-2008, 03:30 AM
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All i am saying is after hearing a few people bitch about Patriot Heads performance, i am very happy with the results. I did replace my lifters, knock sensors, injectors,and oil pressure sensor just to freshin up a 122K motor and was quite impressed with the feel this new set up gave me and am sure i will be well in the 11's. The mid range power is quite impressive and i feel this combo is well worth the money i spent on it, maybe $1700 or so. I will be sure to post up track times, dyno times to be objective, but i know the seat of the pants feeling is better and that is a good indicator.
Old 08-11-2008, 07:58 AM
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Originally Posted by jhall
All i am saying is after hearing a few people bitch about Patriot Heads performance, i am very happy with the results. I did replace my lifters, knock sensors, injectors,and oil pressure sensor just to freshin up a 122K motor and was quite impressed with the feel this new set up gave me and am sure i will be well in the 11's. The mid range power is quite impressive and i feel this combo is well worth the money i spent on it, maybe $1700 or so. I will be sure to post up track times, dyno times to be objective, but i know the seat of the pants feeling is better and that is a good indicator.
Hey man, that's great to hear that they worked out for you. I can only speak based on my personal experience (as you're only speaking based on yours) and I personally see some poor performance from my Patriots and you asked for opinions. But like I said, mine are the bottom of the line $900/pair heads while yours are the newer Stage 2s, so perhaps that's the difference. Either way, I'm saving up for some TFS heads and a new cam, so it won't matter. Keep us posted on how you do when you get it to the track! Good luck!
Old 08-14-2008, 01:47 AM
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Here ya go...

https://ls1tech.com/forums/11-second-club/812794-hit-11-s-today.html
Old 08-15-2008, 02:40 AM
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i hope my car runs as good as yours, i did get in a liitle street action with a c6 tonight , with him jumping me by 1/2 a car on the start by 100 mph i was 3/4 to a car up and pulling and i raped a ford lightning by about 4 cars in the same type run. it has been around 100 deg here lately, so i am hoping it cools down a little before i take it to the track.thanks




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