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Search: Posts Made By: Dave_Jones
Showing results 1 to 50 of 467
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Forum: Brakes
05-16-2009, 03:13 PM
Replies: 30
Views: 14,742
Posted By Dave_Jones

Re: 4th gen master cylinder bore?

Yikes, you're right, I did switch the numbers. And it was more than just transposing the GM part numbers, I also reversed the applications. :eek:

Hope that didn't mess anyone up too much! :doh:
...
Forum: Brakes
02-27-2006, 12:37 AM
Replies: 7
Views: 748
Posted By Dave_Jones

Actually, spindles vary quite a bit, from what...

Actually, spindles vary quite a bit, from what I've seen. Also, there's usually a considerable amount of slop in the strut-to-spindle interface, so unless you deliberately located it in a certain...
Forum: Brakes
02-27-2006, 12:24 AM
Replies: 99
Views: 12,716
Posted By Dave_Jones

While Ed is busy fitting up parts, I'll throw in...

While Ed is busy fitting up parts, I'll throw in a comment or two about brake bias with this setup.

If you sit down and do the math with the piston area and lever arm length, you'll note that the...
Forum: Suspension and Chassis
02-26-2006, 02:48 PM
Replies: 39
Views: 1,654
Posted By Dave_Jones

Not that common, but not at all uncommon either. ...

Not that common, but not at all uncommon either.

If you look at the control arm from underneath, you'll probably find a small reinforcing brace between those two bolts. That brace was actually a...
Forum: Suspension and Chassis
02-23-2006, 09:16 PM
Replies: 8
Views: 743
Posted By Dave_Jones

Count me as a satisfied ASI customer...

Count me as a satisfied ASI customer (www.shox.com)

I've bought four cars' worth of Bilsteins from them over the last 8-9 years; nothing but good things to say about them.
Forum: Suspension and Chassis
02-23-2006, 02:47 PM
Replies: 5
Views: 780
Posted By Dave_Jones

If the parts were correctly assembled to begin...

If the parts were correctly assembled to begin with, probably not.

Reason being, the wear is normally in the ball joint portions of the tie rod ends or center link, and not in the locking taper...
Forum: Suspension and Chassis
02-23-2006, 02:43 PM
Replies: 5
Views: 780
Posted By Dave_Jones

Re: centerlink question

My preferred method is to use an ordinary C-clamp to seat the taper before installing the nut.

Another way to do it, is to use a regular nut to seat the joint, then remove it, and replace with the...
Forum: Brakes
02-23-2006, 02:35 PM
Replies: 6
Views: 643
Posted By Dave_Jones

Something I've taken to doing along with that, is...

Something I've taken to doing along with that, is connecting my brake bleed bottle, and cracking the bleeder valve open while I'm retracting the piston. This makes the piston much easier to move,...
Forum: Brakes
02-22-2006, 11:31 PM
Replies: 5
Views: 538
Posted By Dave_Jones

'84 was the first year for metric fittings. ...

'84 was the first year for metric fittings.

Don't forget that the main line to the rear is 1/4", not 3/16"
Forum: Brakes
02-22-2006, 11:26 PM
Replies: 10
Views: 660
Posted By Dave_Jones

If you don't mind the longer pedal stroke (or...

If you don't mind the longer pedal stroke (or increased pedal effort; they're a tradeoff), there's nothing more reliable than a full manual setup.

Try stopping a power brake car with a booster...
Forum: Brakes
02-22-2006, 11:17 PM
Replies: 10
Views: 660
Posted By Dave_Jones

Um, no. More caliper piston area = less...

Um, no.

More caliper piston area = less hydraulic pressure, to achieve a given piston (pad) force.

Larger rotor diameter = longer lever arm = less pad force required to achieve the same rotor...
Forum: Brakes
02-22-2006, 11:04 PM
Replies: 10
Views: 660
Posted By Dave_Jones

There'd be nothing unsafe about a properly done...

There'd be nothing unsafe about a properly done manual setup. And the LS1 calipers would work just fine.

To do the job right, you'd need to change to a non-quick take up MC, and possibly either...
Forum: Brakes
02-12-2006, 12:57 PM
Replies: 23
Views: 2,228
Posted By Dave_Jones

You don't necessarily have to change the MC. ...

You don't necessarily have to change the MC. Thirdgens with the PBR rear discs got the same MC from the factory that the drum cars did. The cast iron rear discs ('82-'88) cars came with a different...
Forum: Brakes
02-12-2006, 12:27 PM
Replies: 23
Views: 2,228
Posted By Dave_Jones

As far as the rears go, the C5 and LS1 calipers...

As far as the rears go, the C5 and LS1 calipers are almost identical, and will interchange as long as you use the appropriate antirattle clips.

There is a big difference in the C5 & LS1 rotor...
Forum: Brakes
01-06-2006, 02:32 PM
Replies: 30
Views: 14,742
Posted By Dave_Jones

Yes. IIRC, there are a few people on this board...

Yes. IIRC, there are a few people on this board running that combo.
Forum: DIY PROM
01-05-2006, 05:15 PM
Replies: 4
Views: 423
Posted By Dave_Jones

ATXF: 1990 F-body, 3.1L, auto trans, federal...

ATXF:
1990 F-body, 3.1L, auto trans, federal emissions.

ARUR:
1991 J-body, 3.1L, 5-spd trans, federal emissions.
Forum: Brakes
01-05-2006, 05:00 PM
Replies: 6
Views: 841
Posted By Dave_Jones

By the way, they're marketed by Russell, not...

By the way, they're marketed by Russell, not Earl's.

Try P/N 639560

http://www.russellperformance.com/auto/brake/sb-chevy.shtml
Forum: Brakes
01-05-2006, 04:56 PM
Replies: 6
Views: 841
Posted By Dave_Jones

They're M10x1.0 thread, same as the other PBRs. ...

They're M10x1.0 thread, same as the other PBRs.

Given that, you should be able to look up the P/N online without too much trouble.
Forum: Brakes
01-05-2006, 04:48 PM
Replies: 6
Views: 529
Posted By Dave_Jones

Just FYI, contaminated brake fluid will do a...

Just FYI, contaminated brake fluid will do a number on all the rubber seals in the entire system if given enough time. If the fluid looks like crap and leaves a dark residue on the MC reservoir,...
Forum: Suspension and Chassis
01-04-2006, 05:32 PM
Replies: 5
Views: 466
Posted By Dave_Jones

I should have pointed out that was a comparison...

I should have pointed out that was a comparison between 15-year old used NNLs, and brand new TTHs...so some of that change may have been that my old springs were already sagged lower than normal.
Forum: Suspension and Chassis
01-04-2006, 03:16 PM
Replies: 5
Views: 466
Posted By Dave_Jones

A lot of the factory springs were pretty close. ...

A lot of the factory springs were pretty close.

FWIW, new take-off TTH fourthgen springs raised my rear ride height a bit (~1") compared to thirdgen NNL's.

Rear springs are easy to change, so...
Forum: Suspension and Chassis
01-04-2006, 01:16 PM
Replies: 39
Views: 1,654
Posted By Dave_Jones

One thing I didn't see mentioned is that from a...

One thing I didn't see mentioned is that from a handling perspective, you NEVER want roll oversteer. (On asphalt anway, dirt track racing is a separate case)

Ideally, you'd have no roll steer at...
Forum: Brakes
01-04-2006, 03:26 AM
Replies: 30
Views: 14,742
Posted By Dave_Jones

Here's the LS1 MC (top) next to the LT1 MC...

Here's the LS1 MC (top) next to the LT1 MC (bottom), along with the internals.
Forum: Brakes
01-04-2006, 03:20 AM
Replies: 30
Views: 14,742
Posted By Dave_Jones

It's more of a difference than that, so it sounds...

It's more of a difference than that, so it sounds like it might work for you.
Forum: DFI and ECM
01-02-2006, 11:02 AM
Replies: 2
Views: 615
Posted By Dave_Jones

Although a MAF ECM can run without a MAF sensor...

Although a MAF ECM can run without a MAF sensor connected, I'd venture to say that most of us without MAFs are indeed running MAP.

There's a ton of info on the '730/speed density conversion over...
Forum: DIY PROM
01-02-2006, 10:41 AM
Replies: 16
Views: 826
Posted By Dave_Jones

Well, unless they do a visual inspection and...

Well, unless they do a visual inspection and notice it....

Edit: But IMHO you really shouldn't need to do that, if the engine is running even halfway right.
Forum: Brakes
01-01-2006, 11:56 PM
Replies: 30
Views: 14,742
Posted By Dave_Jones

LT1/LS1 MC is a little more compact than the...

LT1/LS1 MC is a little more compact than the thirdgen style.

I'll try to snap a pic or two for comparison.
Forum: DIY PROM
01-01-2006, 08:28 PM
Replies: 16
Views: 826
Posted By Dave_Jones

In some cases, I can see how that might help,...

In some cases, I can see how that might help, although I'd be more inclined to add some type of oil/vapor separator to the PCV line instead.
Forum: Suspension and Chassis
01-01-2006, 08:19 PM
Replies: 22
Views: 1,236
Posted By Dave_Jones

Yes, but if you're cutting it close the...

Yes, but if you're cutting it close the difference in section width between different tire brands/models can make a difference, so I'd prefer to measure if possible.
Forum: Suspension and Chassis
12-31-2005, 06:04 PM
Replies: 22
Views: 1,236
Posted By Dave_Jones

That will work, but IMHO it's not hard to make a...

That will work, but IMHO it's not hard to make a mock-up spacer out of a block of wood and a few nuts and bolts. Just put the car up on jackstands, and use a jack to position the control arm at ride...
Forum: DIY PROM
12-31-2005, 03:57 PM
Replies: 16
Views: 826
Posted By Dave_Jones

ZZ4 isn't what I'd call a big cam for a 350 IMHO,...

ZZ4 isn't what I'd call a big cam for a 350 IMHO, so you should be able to pass without much difficulty.

You didn't mention what state you live in, or what test procedure you're subject to...but...
Forum: DFI and ECM
12-28-2005, 08:28 PM
Replies: 1
Views: 437
Posted By Dave_Jones

12 vs 14 ohm isn't a significant difference --...

12 vs 14 ohm isn't a significant difference -- both are still high-Z.

As far as the '730 vs. '749 injector drivers go, it only makes a difference if you're going to use peak & hold injectors. A...
Forum: DIY PROM
12-28-2005, 07:42 PM
Replies: 35
Views: 2,176
Posted By Dave_Jones

A search for "wide band datalogging" might be a...

A search for "wide band datalogging" might be a good start.
That, or the FAQ sticky post
https://www.thirdgen.org/techbb2/showthread.php?s=&threadid=92543
Forum: Brakes
12-19-2005, 04:13 AM
Replies: 23
Views: 2,228
Posted By Dave_Jones

IMHO, it depends to some extent on what brakes...

IMHO, it depends to some extent on what brakes you have up front.

The piston diameter in the LS1 rear caliper is 4mm larger than the '89-'97 PBRs, also the rotor is 0.3" larger in diameter -- so...
Forum: DIY PROM
12-11-2005, 05:49 PM
Replies: 32
Views: 2,279
Posted By Dave_Jones

This one? ...

This one?

http://www.contactmagazine.com/Issue54/EngineBasics.html
Forum: Suspension and Chassis
12-10-2005, 03:07 PM
Replies: 7
Views: 538
Posted By Dave_Jones

Sounds stock to me. Although things varied...

Sounds stock to me.

Although things varied a bit from year to year, BZW wouldn't be surprising. I've also seen IROCs with BZX's, which are one notch stiffer.
Forum: Suspension and Chassis
12-09-2005, 10:39 PM
Replies: 4
Views: 421
Posted By Dave_Jones

Re: track bar?

Yes.

Broken in half, you sure don't see that every day.
Forum: Suspension and Chassis
12-09-2005, 10:26 PM
Replies: 7
Views: 538
Posted By Dave_Jones

If you open the higher res version of his...

If you open the higher res version of his thumbnail pic, the jack stand is in the foreground, and not supporting the car.

I'd start by checking to see if the upper end of the spring is correctly...
Forum: Brakes
12-08-2005, 04:17 PM
Replies: 8
Views: 4,600
Posted By Dave_Jones

Correct. Other than color, they're...

Correct.



Other than color, they're virtually identical. The only obvious difference is the little "window" that holds the antirattle clip is shaped a bit differently between the two, so the...
Forum: Brakes
12-08-2005, 03:43 PM
Replies: 283
Views: 45,672
Posted By Dave_Jones

No such problem exists with the C5 or regular C6...

No such problem exists with the C5 or regular C6 rotors.

What you're referring to is the C6 Z51, and yes, it's an abortion. (Since the C6 design team couldn't have been that stupid, my guess is...
Forum: Brakes
12-07-2005, 10:49 PM
Replies: 8
Views: 4,600
Posted By Dave_Jones

Rotor Offset

I assure you that they're not even close.

The C5 rear rotor is much shallower, by about 1/2"
(IIRC it might be more like .625" but I don't have my notes handy at the moment.)

You can make it...
Forum: Brakes
12-07-2005, 09:57 PM
Replies: 283
Views: 45,672
Posted By Dave_Jones

Have you had a chance to measure the piston...

Have you had a chance to measure the piston diameters yet?
Forum: DFI and ECM
12-04-2005, 11:31 PM
Replies: 1
Views: 560
Posted By Dave_Jones

Lots of links to scanning software can be found...

Lots of links to scanning software can be found at:
http://www.akmcables.com/

Moates' ECM 8.52 and 8.53 are free DOS-based scanners that work well.
http://www.moates.net

For a Windows app,...
Forum: DFI and ECM
12-04-2005, 11:20 PM
Replies: 1
Views: 712
Posted By Dave_Jones

The most wallet-friendly would have to be...

The most wallet-friendly would have to be FreeScan.
http://www.freescan.com/

The most user-friendly IMHO is TTS DataMaster.
http://www.ttspowersystems.com/

Both will work fine with your AKM...
Forum: DIY PROM
12-04-2005, 12:46 AM
Replies: 14
Views: 724
Posted By Dave_Jones

Volumetric Efficiency vs. MAP vs. RPM There...

Volumetric Efficiency vs. MAP vs. RPM

There are two VE tables, main and extended, based on RPM.
Forum: DIY PROM
12-04-2005, 12:38 AM
Replies: 14
Views: 724
Posted By Dave_Jones

TunerPro :)

TunerPro :)
Forum: DIY PROM
12-03-2005, 11:57 PM
Replies: 14
Views: 724
Posted By Dave_Jones

In the XDF pull-down menu, there's an "Import"...

In the XDF pull-down menu, there's an "Import" function, that will let you load up the .ecu file

You can then save it as an .xdf if you want.
Forum: Brakes
12-02-2005, 01:23 PM
Replies: 48
Views: 1,866
Posted By Dave_Jones

Not overkill at all, IMHO. If you're...

Not overkill at all, IMHO.

If you're concerned about the brake bias being shifted too much to the rear, note that the PBR rear calipers use a much smaller piston than the earlier Delco-Morraines,...
Forum: DIY PROM
11-30-2005, 07:43 PM
Replies: 66
Views: 3,858
Posted By Dave_Jones

Re: TunerPro v4.12 Released! Many new features...

3D graph seems to have the numerical scales, but no axis labels.

Not a big deal, since most times it's very obvious what's what -- but labels might be helpful for newbies, or for preventing...
Forum: Brakes
11-30-2005, 05:09 PM
Replies: 48
Views: 1,866
Posted By Dave_Jones

Actually, the regular 1-pc integral hub rotors...

Actually, the regular 1-pc integral hub rotors are worse than the slip-on type in this regard.

Anytime you heat an unevenly stressed piece of metal, you're just asking for it to distort.
...
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