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#1
08-13-2003, 10:33 PM
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ok, i'm thinking about changing the cam in my 455
right now it has a SPC3 mellings cam 224 intake 236 exhaust .434 intake .434 exhaust with the 1.6 rockers 112* intake 119* exhaust my engine is 11.6:1 compression 469 with ported 62 heads small tube headers, ported performer rpm intake, 750 holley with proform center. it has gone a best 1/4 mile pass of 11.78 @ 115.8 and a best 1/8th mile pass of 7.49 @ 91mph i'm wanting to know if anyone has an idea of how it might pick up with the new cam ultradyne 239 intake 247 exhaust dur .541 intake .565 exhaust lift 104* intake 116* exhaust i'm hoping with the bigger cam I will lose some of the bottom end and pick up on the top, right now I just blast the tires off. ok yeah TH350 3800 ATI converter and now 3.73's 28X10.5's. the passes mentioned where on 26X10's and 3.23's and I have not made any passes yet on the 3.73's |
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#2
08-13-2003, 10:33 PM
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ok, i'm thinking about changing the cam in my 455
right now it has a SPC3 mellings cam 224 intake 236 exhaust .434 intake .434 exhaust with the 1.6 rockers 112* intake 119* exhaust my engine is 11.6:1 compression 469 with ported 62 heads small tube headers, ported performer rpm intake, 750 holley with proform center. it has gone a best 1/4 mile pass of 11.78 @ 115.8 and a best 1/8th mile pass of 7.49 @ 91mph i'm wanting to know if anyone has an idea of how it might pick up with the new cam ultradyne 239 intake 247 exhaust dur .541 intake .565 exhaust lift 104* intake 116* exhaust i'm hoping with the bigger cam I will lose some of the bottom end and pick up on the top, right now I just blast the tires off. ok yeah TH350 3800 ATI converter and now 3.73's 28X10.5's. the passes mentioned where on 26X10's and 3.23's and I have not made any passes yet on the 3.73's |
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#3
08-14-2003, 03:07 PM
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you were trapping 116 with only a .434 lift cam??
 nice...You'll definently gain more upper HP with .1" more lift.Project: Black Hawk See the saga unfold here: My 455 Firebird 2001 Camaro Z28 6-speed: [email protected] stock cam, stock heads, stock rear, stock clutch
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2001 Camaro Z28 M6: [email protected] stock cam, stock heads, stock rear, stock clutch |
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#4
08-14-2003, 05:27 PM
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 yep but now i'm looking for more!anyone else have an idea of what it will do? where's the desktop dyno guys? wheres B-man he was DEAD ON on my ET guess! come on guys |
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#5
08-14-2003, 05:31 PM
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my friend John "slow77ta" ran the cam I'm going to. with E-heads and a victor I belive he ran 7.2's 7'1's with his TANK 2nd gen. I'm hoping to get down into that range.
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#6
08-14-2003, 05:54 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Thirdgen455:
wheres B-man he was DEAD ON on my ET guess<HR></BLOCKQUOTE> Gonna run 11.40s now.  ------------------------------ Some say the glass is half full, others say the glass is half empty...I say 'Are you gonna drink that?' www.outlawpontiacs.com/members/B-Man2.php www.outlawpontiacs.com/members/B-Man.php
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/3.08 2002 WS6 Convertible LS1/4L60E/3.23 1966 VW Type 2 Single Cab Pickup 140hp 2276 1956 VW Type 2 Panel Van 36hp 1200 1957 VW Type 1 Beetle 180hp 2276 |
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#7
08-14-2003, 06:11 PM
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That's a good cam especially a good step up from your old one.I ran the 304/312 in my 400 and it ran pretty good also, still ran the power brakes too.A/C was a little rough idle though.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune [email protected] 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs 1964 Corvette Coupe 327 4 speed |
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#8
08-14-2003, 09:11 PM
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I got dyno2000...send me the flow chart for them heads, what size carb, what intake manifold, and i'll show you some HP numbers
but I cant enter in seperate LSA's for intake and exhaust..so im gonna need a medium number to plug inProject: Black Hawk See the saga unfold here: My 455 Firebird 2001 Camaro Z28 6-speed: [email protected] stock cam, stock heads, stock rear, stock clutch [This message was edited by Firebird455 on August 15, 2003 at 12:26 AM.]
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2001 Camaro Z28 M6: [email protected] stock cam, stock heads, stock rear, stock clutch |
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#9
08-15-2003, 10:58 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Firebird455:
I got dyno2000...send me the flow chart for them heads, what size carb, what intake manifold, and i'll show you some HP numbers but I cant enter in seperate LSA's for intake and exhaust..so im gonna need a medium number to plug in_Project: Black Hawk_ See the saga unfold here: My 455 Firebird 2001 Camaro Z28 6-speed: [email protected] stock cam, stock heads, stock rear, stock clutch [This message was edited by Firebird455 on August 15, 2003 at 12:26 AM.]<HR></BLOCKQUOTE> LSA on that cam is 110. |
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#10
08-15-2003, 02:10 PM
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I have no idea what the heads really flow, I ported them myself, so they probaly flow less than stock
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#11
08-15-2003, 03:27 PM
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Hi, Nice combination, and you will pick up, but for a 469 and drag only, I'd swap the 750 for an 850, theres a 10th and the RPM is a great intake and what I was running, but the best I could get out of it was 115mph with the 455 and 118 with the 474 without NOS. It's holding your top end back. Try the torker II and I bet you'll see about 5 more MPH.
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You know it's going to be a good day when you wake up breathing! |
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#12
08-15-2003, 05:20 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by SupergasDil:
Hi, Nice combination, and you will pick up, but for a 469 and drag only, I'd swap the 750 for an 850, theres a 10th and the RPM is a great intake and what I was running, but the best I could get out of it was 115mph with the 455 and 118 with the 474 without NOS. It's holding your top end back. Try the torker II and I bet you'll see about 5 more MPH.<HR></BLOCKQUOTE> If you really wanna see some top end try the Victor Project: Black Hawk See the saga unfold here: My 455 Firebird 2001 Camaro Z28 6-speed: [email protected] stock cam, stock heads, stock rear, stock clutch
__________________
2001 Camaro Z28 M6: [email protected] stock cam, stock heads, stock rear, stock clutch |
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#13
08-15-2003, 09:16 PM
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I have a very similar combo to yours, so I ran some dyno desktops for you out of curosity.
Run #1 is your existing combo with the melling cam Run #2 is with the new ultradyne cam Run #3 is with a single plane intake & 850cfm carb along with the ultradyne cam. I have an airflow file for unported #62's so I used that. I also gave you small tube open headers The numbers aren't important; the trends are. I hope this helps. Edit: The third run on the graph says "melling". I misnamed the file; it's actually the ultradyne cam. |
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#14
08-16-2003, 06:34 PM
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so it looks like it should pick up quite a bit. it just seemed like it johns car with the nitrous it didn't pick up much with the ultradyne. bit I know the parkers when they ran the SPC3 when from 12.00 to 10.60's with a 150 shot. I'll keep this cam and throw it in a daily driver 455 for my 78 lemans and use the ultradyne in my trans am.
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