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Paul P
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Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81572.74 points


1971 Chevrolet Chevelle

PostPosted: Tue Aug 31, 2010 2:12 pm    Post subject: Reply with quote

Comp Pacaloy springs all the way....
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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
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clay
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Joined: 24 Nov 2002
Posts: 3209
Location: South Carolina
318129.23 points


1972 Chevrolet Nova

PostPosted: Thu Sep 02, 2010 12:47 am    Post subject: Reply with quote

I've got to do something I hate to do - but in the interest of fairness to Competition Products and Howards Cams I have to do it. It looks like the spring tester I was using has a problem Embarassed . I can't figure out why just yet, since it's a hydraulic unit it has to be in the gauge. It will check a 200# or so spring consistently but anything under that and it is all over the place. The way it's acting is really weird. I'll dig into it just out of curiosity and I have to get a way to calibrate them at several different points. I'm thinking of taking a spring to a machine shop with an official tester and getting them to give me reading at every 0.100". Then put it aside to be my "calibration" spring. I've seen calibration springs but from what I remember they are sorta light and it wouldn't necessarily show up the problem I'm having now. Sorry - I'll get it figured out eventually Embarassed . Clay
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af2
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Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Thu Sep 02, 2010 1:20 am    Post subject: Reply with quote

I think Karma set in and you should not touch the springs in the car! Cool
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10sec.et
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Joined: 29 Mar 2006
Posts: 3473
Location: Houston,Texas
346658.74 points


1969 Oldsmobile Cutlass

PostPosted: Thu Sep 02, 2010 2:46 am    Post subject: Reply with quote

sounds kinda like the torque wrenches that go from 50-250 ftlbs. they arent accurate for sh!t on the low end. doesnt seem to matter what brand either. i have four torque wrenches just for that reason.
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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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Big Dave
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Joined: 04 Dec 2005
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Location: Tampa Florida
119973.02 points



PostPosted: Fri Sep 03, 2010 12:57 am    Post subject: Reply with quote

10sec.et wrote:
sounds kinda like the torque wrenches that go from 50-250 ftlbs. they arent accurate for sh!t on the low end. doesnt seem to matter what brand either. i have four torque wrenches just for that reason.


That is true for just about every instrument. They are only truly accurate at about mid range and are off on both the top and the bottom. I have six torque wrenches to cover 15-250 ft-lbs and two inch pound torque wrenches in 1/4 inch drive for small stuff.

Same goes for gauges and electrical meters and I imagine any devise you build will have some measurable variance as few things in the real world are truly linear (classic example being a volt meter. We talking in rush, RMS or what the meter says is the "true" reading.

Big Dave


Last edited by Big Dave on Sat Sep 04, 2010 7:43 pm; edited 1 time in total
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Paul P
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Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81572.74 points


1971 Chevrolet Chevelle

PostPosted: Fri Sep 03, 2010 6:20 pm    Post subject: Reply with quote

That is why i confirm pressures with a hydraulic spring pressure gauge in a vise. They are accurate through the range if there is any doubt.
_________________
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
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clay
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Joined: 24 Nov 2002
Posts: 3209
Location: South Carolina
318129.23 points


1972 Chevrolet Nova

PostPosted: Thu Sep 09, 2010 4:10 pm    Post subject: Reply with quote

Quote:
That is why i confirm pressures with a hydraulic spring pressure gauge in a vise.

That's actually what I was using. I just set it up on my drill press table and once I set my height with my dial caliper I can set a stop for checking multiple springs. I've never had a gauge act like this one - really weird. I looked at McMaster Carr and they do sell gauges that are accurate to 1% over the full range that aren't too expensive. This engine is cursed - it seems like everything just has to screw with me. Right now I just want it to move under it's own power and don't care about horsepower or e.t. Clay

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10sec.et
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Joined: 29 Mar 2006
Posts: 3473
Location: Houston,Texas
346658.74 points


1969 Oldsmobile Cutlass

PostPosted: Thu Sep 09, 2010 4:32 pm    Post subject: Reply with quote

clay wrote:
Right now I just want it to move under it's own power and don't care about horsepower or e.t. Clay

dont go there. you will be spending countless hours fixing sh!t asking yourself "WTF was i thinking ????" ask me how i know Embarassed .

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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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af2
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Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Thu Sep 09, 2010 8:13 pm    Post subject: Reply with quote

Clay,
You wana sell the ProCharger? This Willys need a litle help. Embarassed
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10sec.et
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Joined: 29 Mar 2006
Posts: 3473
Location: Houston,Texas
346658.74 points


1969 Oldsmobile Cutlass

PostPosted: Fri Sep 10, 2010 12:01 am    Post subject: Reply with quote

af2 wrote:
Clay,
You wana sell the ProCharger? This Willys need a litle help. Embarassed


what happened ? video ?

.............just spray it Burn Out Twisted Evil

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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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Paul P
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Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81572.74 points


1971 Chevrolet Chevelle

PostPosted: Fri Sep 10, 2010 12:08 pm    Post subject: Reply with quote

clay wrote:
Quote:
That is why i confirm pressures with a hydraulic spring pressure gauge in a vise.

That's actually what I was using. I just set it up on my drill press table and once I set my height with my dial caliper I can set a stop for checking multiple springs. I've never had a gauge act like this one - really weird. I looked at McMaster Carr and they do sell gauges that are accurate to 1% over the full range that aren't too expensive. This engine is cursed - it seems like everything just has to screw with me. Right now I just want it to move under it's own power and don't care about horsepower or e.t. Clay


Which brand of hydraulic gauge are you talking about? I have a Tavia gauge looks like they are gone an no longer available.

_________________
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
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SMOKEmUP
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Joined: 30 May 2002
Posts: 3169

65097.54 points


1979 Chevrolet Camaro

PostPosted: Fri Sep 10, 2010 2:28 pm    Post subject: Reply with quote

clay wrote:
Right now I just want it to move under it's own power and don't care about horsepower or e.t. Clay


I agree with 10sec.et. Try not to get upset and rush through things just to get it done. You'll thank yourself in the long run. As you've said before when things go wrong is usually when you learn the most.

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MufflerBearings69
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Joined: 22 Jul 2007
Posts: 746

25364.28 points


1968 Ford Galaxy

PostPosted: Fri Sep 10, 2010 8:21 pm    Post subject: Reply with quote

10sec.et wrote:
clay wrote:
Right now I just want it to move under it's own power and don't care about horsepower or e.t. Clay

dont go there. you will be spending countless hours fixing sh!t asking yourself "WTF was i thinking ????" ask me how i know Embarassed .


I just pulled my driveline out to fix all those WTF moments of my earlier learning... +1 to it being worth the wait for that added touch of perfection...

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Paul P
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Joined: 15 Aug 2002
Posts: 2403
Location: Townsend, Mass.
81572.74 points


1971 Chevrolet Chevelle

PostPosted: Sat Sep 11, 2010 12:33 am    Post subject: Reply with quote

Yes.
I have been sorting through some bugs in my car this year too.
Now I still have a broken speedometer which is at Instrument specialties in RI.

The second issue is the oil leak that I thought I fixed when I had the motor out for the firewall fix.

It is still there and I'll have to pull it back out to fix it. UGGG...

_________________
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
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View user's profile Send private message
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