Home | Register | Login | Contact Us

 
Auto Math
Classifieds
Forum
Gallery
Games
Garage
Tech Articles
Utilites
 
FAQFAQ    SearchSearch    RegisterRegister    Log inLog in    Log in to check your private messagesLog in to check your private messages    Forum Subscriptions1/4 Mile Table 

dynoed my mom and pops motor today
Goto page Previous  1, 2, 3  Next
 
Post new topic   Reply to topic    SMOKEmUP.com Forum Index -> Chevy - Small Block Gen 1
View previous topic :: View next topic  
Author Message
Paul P
Member


Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81574.74 points


1971 Chevrolet Chevelle

PostPosted: Mon May 10, 2010 10:04 am    Post subject: Reply with quote

squeeezer wrote:
what did you dyno this cam in?


It was dyno'd in my 406.

What did you make for power when you had the cam in there?

_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi

1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Mon May 10, 2010 9:39 pm    Post subject: Reply with quote

well i was a little dissapointed

first of all my motor is up and running for cheap.....thanx again paul

this was the first time my expectations were too high for a dyno run
both torque and h.p were up=very little
and it only went 100 rpm higher=(as far as peak h.p. is concerned)

my lil 355

429.4 torque@4800rpm
457.2 horse@6200

_________________
Back to top
View user's profile Send private message
Paul P
Member


Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81574.74 points


1971 Chevrolet Chevelle

PostPosted: Tue May 11, 2010 1:43 am    Post subject: Reply with quote

Still a nice combo at the moment. I did use 1.65 rocker arms with that cam in the 406 seemed to help boost power a little more as well. What are you running the standard 1.5?
_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi

1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Tue May 11, 2010 11:59 am    Post subject: Reply with quote

yes 1.52
_________________
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Tue May 11, 2010 12:01 pm    Post subject: Reply with quote

it would be better the dyno did state the 750 is now a restriction
@6300 the vacuum readings started going up 1.7,1.8 ,1.9hg
at least the power doesnt just fall off limp @6100
it peters off way slower

_________________
Back to top
View user's profile Send private message
af2
Member


Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Tue May 11, 2010 5:19 pm    Post subject: Reply with quote

What springs did you end up using?
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Tue May 11, 2010 6:22 pm    Post subject: Reply with quote

http://www.jegs.com/i/Comp+Cams/249/977-16/10002/-1

comp 977
with .045 additional shim above and beyond installed height
this put me right @ .050 clearance on the exhaust spring lil more @ intake

so if/when i tighten up the lash ill be into the clearance area

_________________
Back to top
View user's profile Send private message
af2
Member


Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Tue May 11, 2010 8:38 pm    Post subject: Reply with quote

I knew it!
No more response! Shit I ran those on my flat tappet solid's in the 80's!!! And shifted at 7500 with the motor pulling hard.
Why run a friggen roller? You wonder why the shit stops at 6300???????? I give! That 355 should be near or above 7000 before the drop with that cam.

Bring it on! Laughing
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Tue May 11, 2010 10:32 pm    Post subject: Reply with quote

[quote="af2"]I knew it!
No more response!







huh????
1. you knew what?
2. whatcha mean "no more response!" ????

when i bring it to the track we will see how she runs then(as far as 7000+rpm goes
i was just discussing this with my co workers

_________________
Back to top
View user's profile Send private message
af2
Member


Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Wed May 12, 2010 12:02 am    Post subject: Reply with quote

It didn't rev much higher.. I believe and have proven that pressure will not fare well with a roller. Smile


Typing for me doesn't do me justice. retard lol
Back to top
View user's profile Send private message
Paul P
Member


Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81574.74 points


1971 Chevrolet Chevelle

PostPosted: Wed May 12, 2010 12:39 am    Post subject: Reply with quote

I can translate af2's comment.

That spring selection is not enough for that cam.

_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi

1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
Back to top
View user's profile Send private message
af2
Member


Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Wed May 12, 2010 1:33 am    Post subject: Reply with quote

Paul P wrote:
I can translate af2's comment.

That spring selection is not enough for that cam.


Thanks Paul Rolling Eyes
My brain goes faster than my fingers once in a while. Ok always Laughing
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Wed May 12, 2010 3:00 am    Post subject: Reply with quote

well i figured these springs are a world of difference than what crower recomended i run
and...........
they fit without aditional machining
my old springs were 1.460's as well
same installed height too

to tell ya the truth im a lil scared to run 200-250 on the seat
granted i do less and less of it but i do still drive it on the sreet
and i wana start playing with solid rollers too

i know you cant have your cake and eat it too Embarassed


and for what its worth the springs are a hair under 180 on the seat right now

_________________
Back to top
View user's profile Send private message
af2
Member


Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Wed May 12, 2010 1:56 pm    Post subject: Reply with quote

Crower has a BIG discrepancy in spring rates. On the page where it shows the component kits it lists the 68385X2 spring for stock valve height. That spring is 187@ 1.850" and 445@ 1.125".
It is way more in line with what is needed on the nose than what you have.
Every roller you see that is beat up on the closing ramp will be caused from lack of spring. It will also take out lifters in a short time.

That # is a far cry from what the cam card lists.

I feel you are about 500 rpm low on the peak HP#.
Back to top
View user's profile Send private message
Paul P
Member


Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81574.74 points


1971 Chevrolet Chevelle

PostPosted: Wed May 12, 2010 4:47 pm    Post subject: Reply with quote

I agree change the springs....

I had the same advise 15 years ago with regard to Crowers recommended spring for that cam as well.

_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi

1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    SMOKEmUP.com Forum Index -> Chevy - Small Block Gen 1 All times are GMT - 5 Hours
Goto page Previous  1, 2, 3  Next
Page 2 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
Home | Contact Us | Automath | Cam Files | Dyno Search | Forum | Garage | Picture Gallery | Reaction Timer

Copyright 1997-2016 SMOKEmUP.com All rights reserved.
Advertising Info     Disclaimer     Privacy Policy