Results using PRC 225 or 227 heads?

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Jan 7, 2013 | 07:29 AM

KrisR

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Results using PRC 225 or 227 heads?

I did a search and it seems like there isn't much out there. Who is using these? What's your setup, and what does it put down?

Jan 7, 2013 | 01:59 PM

EricYJ-TA

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I am in for results as well.

Jan 8, 2013 | 02:43 PM

KrisR

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No response yet. Texas Speed, please feel free to send me a set of your PRC 227 heads so I can replace my Texas Speed/PRC 5.3s. I will then post a glowing review/dyno comparo in exchange. Deal?

Jan 8, 2013 | 09:53 PM

06X6spdGTO

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Dyno Tuned a 2002 LS1 Firehawk, PRC 227 (small bore) heads, SNL v.4 cam, SLP Longtubes, Catless mids, SLP Loudmouth, FTP 102mm Lid, FTP 104mm TB, SNL 100mm MAF, FAST 102... 453whp SAE on a Dynojet...

Jan 9, 2013 | 07:25 AM

KrisR

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Thanks for the reply.

Jan 9, 2013 | 04:23 PM

06X6spdGTO

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Same car made 426whp 395wtq with Cartek Ported 241's and a much smaller Cartek 2X Cam with a Ported LS6 intake, SLP Lid, BBK 80mm Tb.... Dynoed on the same Dynojet both times.. I did both tunes.

I should add that this car is a M6 with a 12 bolt Moser and 3.73s

Last edited by 06X6spdGTO; Jan 9, 2013 at 05:17 PM.

Jan 9, 2013 | 08:53 PM

TXZ28LS1

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I am really surprised TSP hasnt really had much dyno info on the PRC 227 heads

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Jan 9, 2013 | 09:16 PM

06X6spdGTO

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You can feel free to post the graph I have there over on your website..

Jan 10, 2013 | 07:52 AM

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Blackpanther99

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Quote:

Originally Posted by 06X6spdGTO

Dyno Tuned a 2002 LS1 Firehawk, PRC 227 (small bore) heads, SNL v.4 cam, SLP Longtubes, Catless mids, SLP Loudmouth, FTP 102mm Lid, FTP 104mm TB, SNL 100mm MAF, FAST 102... 453whp SAE on a Dynojet...

Good numbers there.

Jan 10, 2013 | 10:35 AM

#11

chrs1313

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Quote:

Originally Posted by Aaron@Texas-Speed

We move a lot of our PRC 227s, and the customers all seem very pleased with the results, just need more of them to forward their sheets over or post up. LOL.

:Lurk: Should have some results later in spring

But in the mean time post up the TSP heads cam shop car dyno

Mar 5, 2013 | 10:04 AM

#12

KrisR

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Bump. Still would like to see more results, especially from the 225s. At the price point they are at, I'm thinking of swapping out my PRC Stage 2.5 5.3s to see how much more I can make.

Mar 5, 2013 | 12:04 PM

#13

Troy5061

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I just bought a set of 225s, this spring I will try to get some track numbers posted up. My car never seems to dyno very well on the Mustang dynos around here.

Mar 5, 2013 | 12:08 PM

#14

KrisR

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Quote:

Originally Posted by Troy5061

I just bought a set of 225s, this spring I will try to get some track numbers posted up. My car never seems to dyno very well on the Mustang dynos around here.

Thanks, do you like them so far? Did you upgrade from stock heads or other aftermarket ones?

Mar 5, 2013 | 01:04 PM

#15

Troy5061

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Haven't received them yet, I just placed the order last friday and they take a few weeks to come in. Ill get some pics up when I get them though. I had stock 243s before.

Mar 5, 2013 | 01:09 PM

#16

KrisR

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Quote:

Originally Posted by Troy5061

Haven't received them yet, I just placed the order last friday and they take a few weeks to come in. Ill get some pics up when I get them though. I had stock 243s before.

OK cool.

Mar 5, 2013 | 01:09 PM

#17

Troy5061

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It ran a 7.25 @ 94 in the 1/8th mile best on motor last year. That was with 243s, LS6 intake and stock TB so this year with the bigger cam, Fast intake and heads it should go quite a bit better.