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02-29-2004, 01:32 AM | #41 | |
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Re: typo
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02-29-2004, 08:49 AM | #42 |
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b-cam lc
you made me look it up to be sure...
bcam 480-480 224-224d 107-117 lc ecam 498-498 220-220d 110-110lc fcam 512-512 226-226d 109-109lc xcam 542-542 224-224d 107-117lc I read for guys with flat tops and non-stock valve angles, you can go as high a 535 and 230 duration and be okay. But any duration over 230 becomes hard to tune for streetability (read daily driver) I would be interested in hearing from guys with moderate lift cams over 230 duration to get some tips on tuning.
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1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy |
02-29-2004, 10:43 AM | #43 |
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Where did you get the specs on the F cam? I heard it was a 112 LSA?
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04 Screamin Yellow Cobra KB 2.4 (585/556 pump 626/666 race) 00R brakes, DFX clutch, Level 5's, return fuel system, Lts with 3" exhuast, FR500 wheels and all the other fun stuff. GONE 1991 Lx sedan 5.0, 5spd (Liberty proshifted TKO) S-trim, Ported TF heads everything parted out. |
02-29-2004, 11:28 AM | #44 |
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f specs
http://www.mindspring.com/~steveflyer/engine.htm
and the racer walsh catalog to be sure.
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1988 GT Convertible 331 10:1 TW heads, GT-40 intake, MSD, TRW flattops, B Cam w/ 1.7's, MAC exhaust, 24's, 70 TB, 76 MAF, 3.73's, Pro 5.0, Koni's, Anderson PMS, Wideband 02, yatta, yatta... One week with new motor, two speeding tickets...joy |
02-29-2004, 12:05 PM | #45 |
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Thanks, for the link to the specs and that is a very nice website.
Thanks. |
03-14-2004, 08:26 PM | #46 |
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since u have nice heads an intake an ur gonna go with alph, cam i woulda went with X or Z far more performance than the rest especially with good flowin heads.. just my 2 cents
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03-14-2004, 08:44 PM | #47 |
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I dont have the clearance to run much of a a bigger cam. .530 is my limit
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
03-15-2004, 08:13 PM | #48 |
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I run a Lunati Cam. It has .526in .530ex lift. and 221in 232ex at .050. 111 Lobe Separation. Its a really good cam.
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Streetcar 90 Notch 69 351W .030 over. Untouched 69 351 heads Crane cams duration @050 216in 228ex. valve lift .484in .512ex. Untouched RPM air gap intake with Holley 750 DP. Hooker headers. C6 trans. 8.8 with 3.73, Strange 31spline alxes and spool Racecar 68 Falcon 10 point Cage and FE487ci 13.6:1 compression. .740 lift 276in 284ex duration @.050 in the Works. 428CJ heads. Port O Sonic intake with 1050 Dominator. PowerGlide trans. |
03-16-2004, 01:14 AM | #49 |
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I am surprised you can run that much lift with 49cc heads.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
03-16-2004, 04:53 PM | #50 |
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I check pistoin to valve and I promble could get a little more lift. The block is undecked. With those heads i have 10.5:1 compression.
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Streetcar 90 Notch 69 351W .030 over. Untouched 69 351 heads Crane cams duration @050 216in 228ex. valve lift .484in .512ex. Untouched RPM air gap intake with Holley 750 DP. Hooker headers. C6 trans. 8.8 with 3.73, Strange 31spline alxes and spool Racecar 68 Falcon 10 point Cage and FE487ci 13.6:1 compression. .740 lift 276in 284ex duration @.050 in the Works. 428CJ heads. Port O Sonic intake with 1050 Dominator. PowerGlide trans. |
03-21-2004, 12:32 AM | #51 |
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lift has very little to do with piston to valve clearance. Its the duration.
The size of the chamber in the head also does not determine piston to valve clearance-(as long as head hasent been shaved) I also agree you couldve went with a much better cam then a e-cam for your combo. 3 things in combo i would change. Cam, 70-75mm t-body, long tube headers The alphabet camsare outdated, and if another combo made 330rwhp, definatly does not mean yours will.
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347- 10.63@128 N/A |
03-21-2004, 09:51 PM | #52 | |
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Quote:
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04 Screamin Yellow Cobra KB 2.4 (585/556 pump 626/666 race) 00R brakes, DFX clutch, Level 5's, return fuel system, Lts with 3" exhuast, FR500 wheels and all the other fun stuff. GONE 1991 Lx sedan 5.0, 5spd (Liberty proshifted TKO) S-trim, Ported TF heads everything parted out. |
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03-21-2004, 10:08 PM | #53 | |
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Quote:
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347- 10.63@128 N/A |
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03-21-2004, 10:15 PM | #54 | |
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Quote:
I have a B41 from anderson that I won't put in because of PV and the fact that the block would be history. I am hoping to have the new block before this one dies now.
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04 Screamin Yellow Cobra KB 2.4 (585/556 pump 626/666 race) 00R brakes, DFX clutch, Level 5's, return fuel system, Lts with 3" exhuast, FR500 wheels and all the other fun stuff. GONE 1991 Lx sedan 5.0, 5spd (Liberty proshifted TKO) S-trim, Ported TF heads everything parted out. |
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03-22-2004, 10:21 AM | #55 | |
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Quote:
I am not worried about the performance of the e cam. After I get all the bugs worked out I fully intend on spraying this motor till I kill it and then throwing a 351 in there.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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03-22-2004, 11:29 AM | #56 |
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If lift has nothing to do with the PV clearance, why is it ever head manufactuer gives a max lift for their heads? Im not cam expert, but it doesnt matter how long a valve is open at a certain lift, just how high it is to hit the piston.
its funny how people all scold you for using the E-cam because you could have got something that made better power, but if you were using the stock cam that would make less power you would probalby not be scolded at all... Skyler
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2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others. |
03-22-2004, 11:52 AM | #57 |
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Lift is an important on P/V clearence. But not the only consideration. You can put in a smaller lift cam in then before and still hit the piston! L/C and duration also plays a large role if not more then just LIFT. Specially if you go from let say a 114 L/C to a cam with lets say...a 108-or even a 110.
As goes for the Manufacture saying max. lift does not indicate possiable P/V clearence problems. All that means is that the stock valve springs that come that head will have coil bind issues, not to mention other problems. You should always check P/V clearences when swaping cams too. But **** happens and I know. As goes for custom grind cams...I always try to use them for varies reasons but sometimes off-the-shelf cams suit your needs just fine too. MY .02 |
03-22-2004, 12:47 PM | #58 |
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Well all I know is the clay I checked piston to valve clearance with tells me I have .530 of piston to valve clearance on the intake side.
I may change to a split pattern cam and run a bout .515 lift on the intake and .530 on the exhaust. I have also thought about putting 1.7 rockers on the exhaust valves to get .529 lift on the exhaust valve. Although not ideal with a little bit of spray I should be able to line up with the big boys.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
03-22-2004, 01:17 PM | #59 |
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[QUOTE]Originally posted by Dark_5.0
[B]Well all I know is the clay I checked piston to valve clearance with tells me I have .530 of piston to valve clearance on the intake side. Wow thats alot of clearence! Or did you mean thats how big of a cam you could of used? As goes for your combo....just run it! The only thing is that, don't expect to pick up alot on spray. But should go pretty good on motor. All I was able to pick up was 7 tenthes on a 150 shot. Went faster w/ a b-cam but slower on motor. It was ok...the way I wanted it. Oh yea, did you ever find out what was up with your vacuum???? |
03-22-2004, 02:39 PM | #60 |
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Yeah the lower intake was leaking where it meets the heads. My GT-40 lower is ported and doesnt leave a whole lot of surface arear to get a good seal. I went to a Felpro 1262 gasket I will put them on tonight and get that taken care of.
I meant thats how big of a cam I could use.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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