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Re: What to change about my car for n/a [Re: Clanton] #2717596
11/19/19 03:18 PM
11/19/19 03:18 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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Well, not what my preference would be.

I’d put even thicker gaskets on it.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: What to change about my car for n/a [Re: fast68plymouth] #2717601
11/19/19 03:27 PM
11/19/19 03:27 PM
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Originally Posted by fast68plymouth
Well, not what my preference would be.

I’d put even thicker gaskets on it.
I have an .080 That I have used.My duration on the cam is 260/269 at .050


GOTBOOST!New improved with Victor heads.
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Re: What to change about my car for n/a [Re: Clanton] #2717602
11/19/19 03:28 PM
11/19/19 03:28 PM
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Marion, South Carolina [><]
an8sec70cuda Offline
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How big is this motor again?


CHIP
'70 hemicuda street car...8.91 at 150.5 mph w/ 4.10s, 8.97 at 152.5 mph w/ 3.54s so far
'69 road runner 440 w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'06 GMC 2500HD LBZ Duramax...toy hauler
'16 Grand Caravan SXT...baby hauler
Re: What to change about my car for n/a [Re: an8sec70cuda] #2717603
11/19/19 03:31 PM
11/19/19 03:31 PM
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Clanton Online content OP
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Just a stock stroke 440,2.05 ch piston
Originally Posted by an8sec70cuda
How big is this motor again?


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717604
11/19/19 03:33 PM
11/19/19 03:33 PM
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Marion, South Carolina [><]
an8sec70cuda Offline
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Whew, ok...you have some potential. Thankfully it isn't a 500+" stroker. biggrin stirthepot


CHIP
'70 hemicuda street car...8.91 at 150.5 mph w/ 4.10s, 8.97 at 152.5 mph w/ 3.54s so far
'69 road runner 440 w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'06 GMC 2500HD LBZ Duramax...toy hauler
'16 Grand Caravan SXT...baby hauler
Re: What to change about my car for n/a [Re: an8sec70cuda] #2717607
11/19/19 03:43 PM
11/19/19 03:43 PM
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Clanton Online content OP
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Ya a stroker was too much of a commitment for me,lol
Originally Posted by an8sec70cuda
Whew, ok...you have some potential. Thankfully it isn't a 500+" stroker. biggrin stirthepot


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717611
11/19/19 04:18 PM
11/19/19 04:18 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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I’d put the .080’s on, and either replace the cam or get it reground.

446, zero deck, .080 gasket, 20cc dish, 72cc head........ 9.08:1
If you got the heads up to 75cc...... then it’s 8.87:1.

If the cam is shorter, then you can make more boost while turning the blower slower......which builds less heat.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: What to change about my car for n/a [Re: fast68plymouth] #2717614
11/19/19 04:38 PM
11/19/19 04:38 PM
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Well that was on the list of options but I wouldn't know where to go with it on lift,dur.I have heavy springs in the heads[280/680#] that I wanted to swap for my old .590 lift cam springs barely used.
ps:The springs on my head are PSI DR1260ML minus the damper spring.
Originally Posted by fast68plymouth
I’d put the .080’s on, and either replace the cam or get it reground.

Last edited by Clanton; 11/19/19 05:05 PM.

GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717615
11/19/19 04:43 PM
11/19/19 04:43 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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The lobe profile and rocker ratio has the biggest influence on how much spring you can get away with(along with how high you need to rev the motor).

For a street/strip car with a roller, there are certainly profiles available that will work and live just fine with less than 280/680.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: What to change about my car for n/a [Re: Clanton] #2717680
11/19/19 08:01 PM
11/19/19 08:01 PM
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New York
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Wrong cam for a blower, too hot for your CR.


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Re: What to change about my car for n/a [Re: polyspheric] #2717685
11/19/19 08:10 PM
11/19/19 08:10 PM
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Clanton Online content OP
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I will never get the chance to show otherwise so ok.I had fun.
Originally Posted by polyspheric
Wrong cam for a blower, too hot for your CR.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717709
11/19/19 08:53 PM
11/19/19 08:53 PM
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Clanton Online content OP
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Here is the 2nd cam I put in my engine back in 2005 SFT

S1720001.JPGS1720002.JPG
Last edited by Clanton; 11/19/19 08:59 PM.

GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717739
11/19/19 11:03 PM
11/19/19 11:03 PM
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So. Burlington, Vt.
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That roller could easily be reground to something more suitable for street/strip use a blower, that would also work with lower spring pressure.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: What to change about my car for n/a [Re: fast68plymouth] #2717799
11/20/19 09:41 AM
11/20/19 09:41 AM
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I should give Comp a call to see what they say,recommend,cost,turn around time,spring recommendation so I can make a plan going forward.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717818
11/20/19 10:51 AM
11/20/19 10:51 AM
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My goal n/a was to go 11.50 with my current parts but by my results it is not going to happen and my goal has not changed and I will be getting perspective on what that is going to take with low boost on pump gas or mix and not leaving out timing adjustment.As far as cam spec I would think mid .550 lift would be very easy on things and fit ok with low boost to reach my goal.I am just putting this out thinking.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2717823
11/20/19 11:07 AM
11/20/19 11:07 AM
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So. Burlington, Vt.
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You can’t(shouldn’t try to) change the lift very much with a regrind on a roller since there is a good chance of grinding through the heat treat.

If you wanted a roller with .550 lift, you would start out with a different core.

Still, your current roller can be reground into something smaller/milder that would work fine in that application.

You could put the solid back in as well........ it’s closer to the right size....... but wouldn’t make as much power as a correctly sized roller.

Quote
My goal n/a was to go 11.50 with my current parts but by my results it is not going to happen

Yeh...... you’re pretty far away from that, and likely not easily cured without spending some real $$.
Cam, gears, converter, and probably headers.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: What to change about my car for n/a [Re: fast68plymouth] #2717832
11/20/19 11:51 AM
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I like using a solid roller so I will stick with it.I have no idea how much I can regrind the cam to so thank you for your info! and help!I am looking at some roller cam,spring rates just to get an idea of what I may need like the Comp 23-703-9 .582/.588 110 that would need a spring 953-16 200# seat 496# rate and I will test my other springs I have to see if they will work to help plan.I need to have my roller lifters looked at to check their health to re-use.
ps:Here are 2 springs I have .1 is a 943 at 550# inch and the white stripe I am not sure of

S1730001.JPG
Last edited by Clanton; 11/21/19 05:47 PM.

GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2718223
11/21/19 08:12 PM
11/21/19 08:12 PM
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Great Neck,LI,new york
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I also never understood why you took the blower off. Been mostly street driving mine for over 20 years!

https://www.youtube.com/watch?v=d6wDmNa4g9I


HEMI-ITIS has no cure. My condition is fully BLOWN!!!

New best 60ft,, 1.42,1/8, 6.0 @117,, 9.38 @146.75 with 6 lbs boost @3700 lbs
Re: What to change about my car for n/a [Re: hemi-itis] #2718257
11/21/19 09:42 PM
11/21/19 09:42 PM
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I wanted to see what it would do n/a and it was easy on the trans while cash was low.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: What to change about my car for n/a [Re: Clanton] #2718290
11/22/19 12:23 AM
11/22/19 12:23 AM
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I would go with a Comp Cams solid roller cam with 260 to 265@.050 on the intake side with 264 to 270@ .050 on the exhaust side with as much lobe lift tat you can get and have it ground on a 106 to 108 LSA and installed it between 4 to 6 degrees advanced and see if that lights your hind tires on fire or not up grin scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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