PRC As Cast Heads Dyno Results on 01 Z06
03-29-2012, 06:49 PM
#21
Jason,
That is very impressive!! But, i know you will have the haters say, thats BS because PRC heads are subpar and only good for budget and that the most expensive heads are the only way to go!!
That is a simple and easy setup!! Good stuff TSP!!
Lets see those heads with a MS3!!
That is very impressive!! But, i know you will have the haters say, thats BS because PRC heads are subpar and only good for budget and that the most expensive heads are the only way to go!!
That is a simple and easy setup!! Good stuff TSP!!
Lets see those heads with a MS3!!
Last edited by TXZ28LS1; 03-29-2012 at 07:46 PM.
03-29-2012, 11:43 PM
#23
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Nice Job Guys! PRC is stepping up their game! I imagine this head will compete with the tfs 220 as cast head? Yet for possibly less coin?
And BTW the MAST small bore heads flow over 350cfm and are killer heads, port design is much More important than port size imo
And BTW the MAST small bore heads flow over 350cfm and are killer heads, port design is much More important than port size imo
03-30-2012, 09:35 AM
#24
Try more coin. Already asked that in the other thread they've got going on. They are going to be priced higher than the TFS 220 heads, but they claim the new PRC heads will out perform the TFS heads. Bad call in my honest opinion. Why pay more when you can get a proven performer in the TFS 220 heads? They should make the price equal to or even less than the TFS heads. I'd like to see some side by side comparissions once all is said and done.
03-30-2012, 10:49 AM
#27
We will be pricing these heads to match the TFS 220 as cast and our heads will not require aftermarket rockers. So in the end they will still be much cheaper with better performance. Its unfortunate you guys are already bagging on this awesome head before official pricing has even been released. This head is on my car and I can tell you they made a huge difference. I am extremely happy with the power the car made as well as the seat of the pants feel from putting the heads on.
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blsnelling (12-30-2019)
03-30-2012, 12:36 PM
#29
Nice to see another viable "As Cast" option out there. My advise would be to price them under what the TFS "As Cast" heads sell for and you will for sure have a great selling head.
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01-23-2012, 10:14 AM #27
Jason 98 TA
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I do not plan on selling lower than the TFS cylinder head. The PRC head will come with a double PRC spring, cnc machined chambers, & guides. As well as 320cfm capability!Nobodies as cast is even in the same ballpark right now!
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Above is something taken directly out of the other thread about these heads in the Gen III internal engine section. Not bashing on them at all. I just think it would be a smart business move to price them at, or below, what the TFS 220 heads sell for. If these new heads truly are that much better, then I can understand that you would price them higher. I just think you'll get more orders if they are of equal price, or cheaper, than the TFS 220 heads. Remember, the TFS 220 head are proven performers and some won't want to take a chance on the PRC heads, especially if they are more money.
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01-23-2012, 10:14 AM #27
Jason 98 TA
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I do not plan on selling lower than the TFS cylinder head. The PRC head will come with a double PRC spring, cnc machined chambers, & guides. As well as 320cfm capability!Nobodies as cast is even in the same ballpark right now!
__________________
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
Above is something taken directly out of the other thread about these heads in the Gen III internal engine section. Not bashing on them at all. I just think it would be a smart business move to price them at, or below, what the TFS 220 heads sell for. If these new heads truly are that much better, then I can understand that you would price them higher. I just think you'll get more orders if they are of equal price, or cheaper, than the TFS 220 heads. Remember, the TFS 220 head are proven performers and some won't want to take a chance on the PRC heads, especially if they are more money.
03-30-2012, 02:49 PM
#30
I just stated that we will be matching the TFS heads price. We will not have a lower price, especially considering the amount of time and work we have into these. Once these get out you WILL see a performance difference between the two. I feel that this test lends some proof to that. Remember this car still has an LS6 intake and 1 3/4 headers on it, there is still some potential for more power. IMO, and obviously I am slightly biased, PRC has proven itself over and over. Our heads continue to be at the top of the list when put in magazine articles and contests, as well as putting a car well into the 9's on a stock bottom end. PRC has been proven to not be a risk.
03-30-2012, 03:05 PM
#31
I just stated that we will be matching the TFS heads price. We will not have a lower price, especially considering the amount of time and work we have into these. Once these get out you WILL see a performance difference between the two. I feel that this test lends some proof to that. Remember this car still has an LS6 intake and 1 3/4 headers on it, there is still some potential for more power. IMO, and obviously I am slightly biased, PRC has proven itself over and over. Our heads continue to be at the top of the list when put in magazine articles and contests, as well as putting a car well into the 9's on a stock bottom end. PRC has been proven to not be a risk.
I agree with you Jon that the PRC heads, specifically the PRC 215 and 227, have shown to be top of the line heads that are right there with AFR and TFS. I don't have any doubts that the PRC as cast heads will be great and this recent dyno test shows their potential. I'm very sure that once these hit production and more dyno/track results pop up on here, they will be a great selling head, giving us budget minded guys another option. Do you guys plan on doing any back to back testing with the TFS 220 as cast heads? I also like the fact that they will come with .650 lift springs. I don't know why AFR doesn't do that.
04-03-2012, 08:52 AM
#34
The results are nice BUT... with me and my friends building our cars,we never seem to get the same results the people get who build and dyno their own product. This has been our case with lg,thunder and speed inc. If some one else bought the product,went to a dyno in their own town and got the same,then i would say hell yeah. Not saying your product isn't good,this is just what has always happened with us all here. Then if you tell someone your numbers are inflated,they cry about it. Now on a out of the box AFR 205 head on my car,i gained 47hp back when i had a ls1 over a stock ported head. I also gained 4 tenths off that lil head alone. I see people saying the prc heads are just as good as the AFR or TFS head....if thats true then you guys done one hell of a job there.
04-05-2012, 02:47 PM
#36
These heads flow a little less then the 227s if I remember correctly. It has a 2.06 intake valve and a 1.60 exhaust valve. The 237s are meant for larger cube motors and move considerably more air then these do.
For what its worth, we did the install in my buddy's garage on jack stands and using a regular floor jack. Too many cars in the back for me to get my car on the lift at this time of year.
For what its worth, we did the install in my buddy's garage on jack stands and using a regular floor jack. Too many cars in the back for me to get my car on the lift at this time of year.
04-05-2012, 08:06 PM
#38
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Excellent, I know as a builder I'm always excited for a new product, the thing most don't realize is a properly designed cast head will perform just as well as cnc'd the engine doesn't know what the surface finish is inside the ports, shiny things sell that's the way it will always be lol aka Dart 205-225229cc heads, valve job and some minor tweaking produces good hp for the money vs a 2500$+ cnc version
ever get a little shadowing after running a head on the cnc because of core shift or whatever, we sand those areas on heads we'd sell just so people wouldn't whine, trust me it makes no difference in power
So a
ever get a little shadowing after running a head on the cnc because of core shift or whatever, we sand those areas on heads we'd sell just so people wouldn't whine, trust me it makes no difference in power
So a
