Welcome, Unregistered.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Reply
Old 04-20-2012, 07:49 PM   #1
Monza2376
 
Status: Banned
Join Date: Apr 2012
Posts: 10



Default Need help with a camshaft

Hello everyone. Can someone suggest a new camshaft for my motor.. Let me tell you about the motor alittle..
It's a 434 sbc with a little m block ..
4'stroke cola crank
6"compstars
Venola flattop 11-1 compression

Heads
Brodix x10 raised runner
208-160 titatem valves with lash caps (sp)
Ported to a 1209 intake gasket they were back cut to 21* or 22 degrees
Jessel shaft rocker pro series 1.5 1.6 they had 1.55 1.65 but I broke one and just bought a new set since they was mad back in the 80's.. Had them flowed but can't rember the flow numbers I think they flowed 320

Camshaft I had to it profile but I wanted to see what you guys think about this cam in my setup or should I change it..

This is what they wrote on my document ..
Intake.468/772 ex.443/6.80
C/l 109 intake dur 284 ex286
Int opens 34btc
Closed 70abc
Lobe center 108

Ex 73 bbc closes 33atc lobe center 110

the car is a 75 monza square tube weighs 2700 9 ford with 456 32 x15
Tunnel ram with 2-660's I was told this ain't the write camshaft for this setup.
If I left anything out plz let me know.. Edit- with a 3800 converter and the carbs running out of gas the car went 9.75@139.87 I had a coan converter made and bought the conversion bowls to change them to center hung bowl. Ain't had it out since the changes but if you guys think this cam is ok I'll take it this weekend..

Last edited by Monza2376; 04-20-2012 at 07:55 PM.
Monza2376 is offline   Reply With Quote
Old 04-21-2012, 03:13 PM   #2
want-a-be
 
want-a-be's Avatar
 
Status: Venerable Member
Join Date: Jan 2008
Location: Southern Illinois
Posts: 1,620



Default

Why the low stall on the converter?
want-a-be is offline   Reply With Quote
Old 04-21-2012, 05:30 PM   #3
Monza2376
 
Status: Banned
Join Date: Apr 2012
Posts: 10



Default

Quote:
Originally Posted by want-a-be View Post
Why the low stall on the converter?
I bought off my buddy he had it behind a big block he was getting 5000 stall out of it.. Then I put it in my car and was only getting 3800 stall .. So I sent it in to coan with the Dyno sheet it came back 5900 stall. I just hope it picks up the car some..
Monza2376 is offline   Reply With Quote
Old 05-03-2012, 03:55 AM   #4
Monza2376
 
Status: Banned
Join Date: Apr 2012
Posts: 10



Default

All these so called engine builder on here can't help a brotha? Wow maybe I came to the wrong site.. Later!!
Monza2376 is offline   Reply With Quote
Old 05-30-2012, 01:14 AM   #5
MightyMouse
 
Status: Junior Member
Join Date: Mar 2012
Posts: 11



Default

The numbers you posted for the cam specs. are not making sense. Are the specs. you wrote .772 intake lift / .680 exhaust lift, 284/286 @ .050" 108 lobe centerline? Or the other way around? What are your 60 ft. Times? If it's running 140 @ the end, I'd probably just try a little looser converter. 4500 to 4800 maybe. It sounds like from what you wrote the package is working. What size header tubes are you running?
MightyMouse is offline   Reply With Quote
Old 06-01-2012, 01:23 PM   #6
CNC-MOTORSPORTS
 
CNC-MOTORSPORTS's Avatar
 
Status: Established Member
Join Date: Oct 2010
Location: Brookings, SD
Posts: 147



Default

Yes, please confirm camshaft specs and rocker ratio for intake an exhaust. Also you should have more converter, and if the carbs are running out of gas, fix this problem before your proceed any further.
__________________
Your connection to performance, We carry every part for horsepower.

info@cnc-motorsports.com
http://www.cnc-motorsports.com
http://www.cncraceengines.com
http://www.youtube.com/watch?v=8oT-LgyvXEg Blown 565 BBC 1300+ Horsepower
http://www.youtube.com/watch?v=4gRvR5G2Q8k LS7 441 Stroker 703 Horsepower
http://www.youtube.com/watch?v=YNqBYtwZ0JY SBF 438 1270 Horsepower Nitrous Engine
CNC-MOTORSPORTS is offline   Reply With Quote
Old 06-14-2012, 01:06 AM   #7
Monza2376
 
Status: Banned
Join Date: Apr 2012
Posts: 10



Default

Hello guys I looked at the cam card again it says .468/772 intake lift. .443/680 with 22 lash that's with 1.55 ex 1.65 int.. I changed the ratio to 1.5 1.6.. Jessel pro series rockers...

The reason I'm asking cause cam came out of a motor my buddy got in on a trade.. The motor from what I understood was a 302 sbc I guess they buzzed it around 9000 rpm ... So I figured I'd ask somebody here with a lot of experience with cams cuz I'm clueless when it comes to cam selection..

I took the car back out after the converter change and rockers haven't took it tho the 1/4 yet do to the brakes last time I had it out couldn't hardly stop I turned the rotor black trying to stop at 139 mph but here's the numbers it went couldn't get a 60ft time cuz I forgot to let the air out the tires they was at 11 pounds the hook better at 6 psi
60ft-146
330-4.06
1/8-6.24@114.57

Last year with the tight converter and running out of gas on the big in it ran
60ft1.39
330 4.01
1/8 6.25@109.74
I haven't been down the track enough to tell if it's going to be faster in the quarter but I know with the new converter it pick up 5 mph in the 1/8... I think last year when I took it down the track I had to much fuel presser I had it at 8 psi but when I got back I was checking the fuel levels and the front secondary bowl was dry then I checked the back secondary and they was over running with fuel..(2-660's)... I notice if I keep the fuel presser at 6-6/12 it seemed ok at the track ,,well it was pulling hard all the way thro the 1/8 so I'm wishing it will pic up in the 1/4 with the new coan converter..but enough of me rambling let me know something on that camshaft and the converter change.. Thanks a bunch for taking time to read.. Hope to here from you guys....

Last edited by Monza2376; 06-14-2012 at 01:13 AM.
Monza2376 is offline   Reply With Quote
Old 06-14-2012, 01:13 AM   #8
Monza2376
 
Status: Banned
Join Date: Apr 2012
Posts: 10



Default

Hello guys I looked at the cam card again it says .468/772 intake lift. .443/680 with 22 lash that's with 1.55 ex 1.65 int.. I changed the ratio to 1.5 1.6.. Jessel pro series rockers...

The reason I'm asking cause cam came out of a motor my buddy got in on a trade.. The motor from what I understood was a 302 sbc I guess they buzzed it around 9000 rpm ... So I figured I'd ask somebody here with a lot of experience with cams cuz I'm clueless when it comes to cam selection..

I took the car back out after the converter change and rockers haven't took it tho the 1/4 yet do to the brakes last time I had it out couldn't hardly stop I turned the rotor black trying to stop at 139 mph but here's the numbers it went couldn't get a 60ft time cuz I forgot to let the air out the tires they was at 11 pounds the hook better at 6 psi
60ft-146
330-4.06
1/8-6.24@114.57

Last year with the tight converter and running out of gas on the big in it ran
60ft1.39
330 4.01
1/8 6.25@109.74
I haven't been down the track enough to tell if it's going to be faster in the quarter but I know with the new converter it pick up 5 mph in the 1/8... I think last year when I took it down the track I had to much fuel presser I had it at 8 psi but when I got back I was checking the fuel levels and the front secondary bowl was dry then I checked the back secondary and they was over running with fuel..(2-660's)... I notice if I keep the fuel presser at 6-6/12 it seemed ok at the track ,,well it was pulling hard all the way thro the 1/8 so I'm wishing it will pic up in the 1/4 with the new coan converter..but enough of me rambling let me know something on that camshaft and the converter change.. Thanks a bunch of taking time to read.. Hope to here from you guys....
Monza2376 is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT. The time now is 08:39 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.