PHASE IX ??

[CETABlackbird4]

Was there ever an "official" Phase IX (Phase I with Phase II headers)? And "official" or not, what is the HP/TQ rating for this package. I've seen two Camaros listed this year as Phase 1X with the horsepower stated as 400 in one case and 425 in the other. Both had Phase II headers.



I am curious because my PE 41 was ordered as a Phase I with Phase II 1 3/4" long tube headers.



Thanks.

[CETABlackbird4]

Thanks for getting back to me on this. I didn't think there was ever a Phase IX based on what I had read, but did think the headers would raise the HP/TQ rating some.

[BERGER SS 38]

In the posting right above this one Mike has the phase IX listed he says all the goody's the phase I has plus 1''3/4 headers 425 hp rwhp 370 ?????????? Mike Carnahan was kind enough to take some of his time and explain in detail the phases to us:

Mike@Vengeancepcm wrote:

Guys I have had many guys over the years ask about all the different Phases and what they meant. So here is a basic Break Down.



Originally Myself and Billy (William Lawler) worked for Matt and I was in charge of all Phase 1 and Phase 3 cars. Billy was incharge of Phase 2 cars until he left after the ZL1 project. When Billy left I then took over the Phase 2 engine setup and that is when the IIX, IIX6 and IIX6R packages came to be.



Phase I 380HP All the boltons, 3:73 rear standard, ASP Pulley, Whisper CF Lid, 180 Thermo, CNC ported Manifolds, Chambered Catback, Whistper MAF ends,



Phase 1X 425HP (370 RWHP) All of the phase 1 stuff PLUS Dynatech 1 3/4" Long Tube Headers



Phase II 435HP (380 RWHP) All of the phase 1 stuff PLUS 224/224 Camshaft, Ported TB, CYL Heads Milled for Compression, 918 Valvesprings, Headers either TTS or Dynatech at this time, Spark plug change, 4:10 gears, ALL PHASE II 435 Cars were built/tuned by a William L. aka Billy



Phase IIX 475HP (430 RWHP) The difference in this setup was Bigger Camshaft and 5.3L Heads done by TEA and hand polished by Brian Tooley. I did experiment with Camshafts so there is really no telling what you have but more than likely its either a 228/230 or a 230/232. The heads were then Fully CNC ported with larger valves and upgraded springs, Heads Milled 30, some later P2X cars started to get Kooks headers Built/Tuned by Mike Carnahan



Phase IIX6 500HP (440-450 RWHP) Same as above Except the use of TEA LS6 Heads. Increase in power about 10-15 RWHP Built/Tuned by Mike Carnahan



******Now ZL1 cars did have LS6 heads but they are not PHASE IIX6 cars. They are Phase II cars built by Billy with LS6 heads. They do not have CNC work or hand blending but are milled. He did change the Camshaft from the 224 to slightly larger Duration.



Phase IIX6R 525HP (450-475 RWHP) Same as IIX6 but the Pistons were Flycut to allow for the biggest Camshaft Possible, The Heads have even more attention since we flowed so many sets these were the top 10% of the Phase IIX6 heads, Best of the best at the time, Upgraded Timing Chain This was a $1000 option through GMMG Built/Tuned by Mike Carnahan



Phase III (500 RWHP avg.) C5R 427 CI, JE Pistons, Oliver Rods (the good ones), Callies Crank, Camshafts were selected and installed by Robert Racing, the heads were also CNC by Roberts Racing, If cars did not make the power I was incharge of changing the Camshaft or setting the proper degrees Built/Tuned by Mike Carnahan



Phase IIIX (525-540RWHP) When I reworked the Phase II package after the ZL1 project I also reworked the Phase III package and took over this from Robert Racing. This is how the Phase IIIX package came to be. I took over CYL Heads and we started to use our own. Not only were they cheaper they were better. I also did all the Camshaft selection. Instead of a one size fits all I would select the Camshaft for the application. Auto or 6 spd. Gear and Driver if we knew them at all. I did alot of testing here with different stuff.



Phase IV 427 C5R SOLID ROLLER (600+++RWHP 7000+++RPMS) Only built one Grumpys Toy. My own car ZL1 #69 Complete SR Valvetrain and Heads, Custom Made Wilson Sheetmetal Intake, Different Inj and fuel pump setup



Phase V 454/455 Rated 680HP (550-600+++ RWHP) Different Bore and Stroke to achieve 454/455 CI, These were more one off but I did do a handfull of them. Maybe 8 total. Camshafts were BIGGER all Custom (no 2 alike), 90MM TB and some even got FAST 90MM Intakes or Wilson Intakes were opened up to accpet 90MM, Heads were either AFR or Trickflow, AFR on the Older then moving to Trickflow, Built/Tuned by Mike Carnahan



There are a ton of small little details that I am leaving out but this post would be 5 pages long. Hope this helps clear the air a bit. If you have any specific questions just let me know.

[BERGER SS 38]

its the second phase down it says Phase 1X 425HP (370 RWHP) All of the phase 1 stuff PLUS Dynatech 1 3/4" Long Tube Headers it list phase I then phase IX then phase II

[BERGER SS 38]

My car does not say anything on the paperwork about phase IX but it doesn't say its a phase I . GMMG paper work just says 3.73 gears and 13/4 headers does not mention any phase and it sure seams too have a lot more power than 380. But that being said If mike can confirm these cars are really phase IX 425 HP 380 RWH that that would be cool.....