what cam for a sbc 434"

[bowler]

my car weights 2450# w/ me in it, P/G with a contintental conv. 5000 stall (on t. brake), 4.56 gears, 32" tires, the motor has 6" rods, 4" stroke, (23degree) AFR 227cc ported heads, 14.8 to 1 compression, the current cam is a Bullet specs: dur. @ .050 278/286, lift 660/647, degree intake lobe to 104. this setup ran 1.418 60', [email protected] deep staging my question is would a new cam make much of a difference? also i'am thinkig about new AFR 235cc heads. thanks in advance for your suggestions. Doug
I also think I need a different converter would help the 60' times?

[fast75vega]

the cam is fine ..... my opinion.... i think the heads will be your bigger gain in performance..... them heads flow some serious numbers stock....... :D

[curtisreed]

Doug,
You say the cam is in at 104 but what is the LSA? I would like to see a higher stall convertor myself, who have you talked to? You might call FTI convertors and see what they think.

Curtis

[bowler]

Curtis the cam is in at 108, i also changed my post on the 60' time it was 1.418, i run at Woodburn in a class for front engine dragsters, roadsters & altereds with a 4ths. pro tree when i deep stage i can cut a very good light & when i run pro class i shallow stage it is 1.37-1.38, i sent 2 converters to contintental 1 he said he does not use the other he told me that i would really like it & thats the one that i'am using, this year i moved the M/T back & added another battery now have 53% on back of the car & went to a shorter tire, first race is May 1st. Curtis who is FTI?, i think i need a different converter. thanks Doug

[curtisreed]

http://fticonverters.com/

There are a lot of guys having getting good results with his stuff. I myself have an older Neal Chance. We have 4 different Chance converters that work really well but haven't bought anything from Marty in a while. There are a lot of good converter companies out there Abruzzi is another. FTI seems to have good customer service also.

Doug, I don't think your cam is a problem.


Curtis

[bowler]

Thanks Curtis, if i buy the AFR heads i thought it would be a good time to change the cam but it sounds like the one i have is ok, so instead of a cam it will be a new converter, hope to do it before the end of april thanks again Doug

[hammertime]

http://fticonverters.com/

There are a lot of guys having getting good results with his stuff. I myself have an older Neal Chance. We have 4 different Chance converters that work really well but haven't bought anything from Marty in a while. There are a lot of good converter companies out there Abruzzi is another. FTI seems to have good customer service also.

Doug, I don't think your cam is a problem.


Curtis

Call FTI and ask for Greg .. tell him I sent ya, he is good people and his customer support is the tops in the business .. I've ran MANY and its not if they can hit .. its what happens if they dont. FTI has a 1 year warranty and has no issue with taking care of a stall change if they opps ... many others claim they will but in deed do not

[zipper06]

I don't know, but i've alway found that the lower lift cams produce more touque than the higher lift cams. I also install every cam at 102 if the car weighs more than 2300lbs. Case in point i built a 388" cheap motor with AFR 335's fully ported for a 3000 lb Camero ladder bar car. It has 14X33 tires with a 5.83 gear 1/8 mi car only, also a 5500 PTC converter with a PG. The heads were 48CC, and had a 3 3/4" toilet bowl on alcohol. 14.86 compression.
It had 1.27 60' time at 3 different tracks. i installed the cam at 102. it was an old on the shelf cam, that i didn't think would work with this heavy of a car. But at 72 yrs old i'm still learning. Below is the cam i installed using 1.5 rockers. I know it's hard to believe but there are 100's of witnessses and many saw it run 5.92 at Byhalia last yr.@111 MPH, with 1.27 60' times, carrieing the wheels for 100 ft plus.


Below is the cam used, i don't like it but real hard to argue with results.

Zip.


http://www.lunatipower.com/Product.aspx?id=1820&gid=253

[bowler]

Zip that is amazing! i'am going to put a set of AFR235cc heads on it and will most likly change the converter and see what it will run, over the winter i built another set of zoomies for it and will run the nostalgia races with them and put the collector headers on for div. 6 races, will be interesting to see how much it slows down? talk to you later Doug

[zipper06]

Doug i think it will slow down about a tenth with the zoomies VS collectors, but please change the cam to 102/103 to realize the torque on the bottom end which is where the most ET and 60' values come in.. Don't forget to check the valve clearance because they could be closer with the 102* setting. good luch and happy hauling.

Zip.

[ccperf721p]

I'm of the opinion that it would respond well to a shorter duration cam

Something around 270 272 on the intake side with .700 lift would be my choice.

If I'm honest, you're running more cam in your 434 in the low nine's than I am running in my 434 at 7.70's.

[SABOT7]

Put a 5500 convertor in it and 5:13 gears.

[cncmotorsports]

What are you running for an intake ? Are your current heads spread port exhaust.

[jmarksdragster]

Leave the cam and heads alone at least for now. You want a converter that stalls about what mine does. Current FTI converter stalls 5900 behind my 11X head 427 SBC. You should ask Greg as he might adjust it a tad due to your weight, but the converter you have is killing it. You won't see much gain from the heads, and might even slow without a converter change. You will not find better customer service from any converter company. And a lot of guys have been running better with his converters. What intake and carb?

http://fticonverters.com/

1.16 60 ft, 5.29 in the 1/8 at 1850 lbs. And my cam is 285/295 @.050

[ccperf721p]

I'm at 1800lbs w/ 276 282 108LSA 106IC - 6000 stall. 1.10 60, 4.91 1/8th @ 3400DA.

He's shooting for an 8 second ride which would be relatively easy with his current combination. Just have to get rid of that 10 second 60'. He's not buzzing the thing that hard with those gears and tires, up the converter too much and he will be deep back into it at the shift. Why try to match the entire car to a camshaft.

[bowler]

to answer some questions, my heads are ported 227 AFR, with a Brodix 1002 (i think) it does not match the heads exactly, with a 1050 dominator, i did call Greg a couple weeks ago but he had left for that day & i was going to call back after i got back from bowling the nat. in reno well i got a cold and did not pull the converter until this week i called him wednesday & he was on another line & he was suppose to call back did not get that call so i called contentintal and he said to try using a 2 step & try 4400, 4500 or 4600 chip he thought i would pickup a few hundreds so i was about to go reinstall the converter when i saw the recent comments now what? thanks Doug

[bowler]

one more thing one of my heads appears to be leaking water on the exhaust port thru epoxy, that was one reason i thought about the AFR 235cc heads & their new intake manifold, the problem with that they do not stock them & are 6 weeks out! on summits site it said they are the same as a 227 except for 2.12 intake valves?thanks again Doug

[zipper06]

Doug, Epoxy in the exh port sounds scary, there's maybe a 1,000 degrees in the exh port and i don't know of any Epoxy that will hold that kind of temp. It needs to be welded if it's the exh port.

JMO

Zip.

[smokinsmallblock]

this post is making me think i have the wrong set up. i have a 6000 stall, .900base circle comp cam. 108 center line. 679-645 lift. 1.27 60ft. 5.92 in the 1/8 9.54 in the 1/4 2440lbs car. 434motor

[bowler]

Smokin what was your mph? my best 1/8 mile was 60'@1.418, [email protected] & [email protected] this was with good air, this is deep staging on a 4ths. pro tree and it was 2420# and not flashing the converter, this season i will use the 2 step and see how much it will pickup?