Engine Swaps

[Adam]

What, can't zip anything?

And I swear to god if you upload a TAR.......go on.

tar.bz coming up!

[Adam]

What, can't zip anything?

And I swear to god if you upload a TAR.......go on.

tar.bz coming up!

Is there a man page for this forum? Also, I removed the permissions on the SkyDrive link.

[Adam]

There has been lots of interests in this spreadsheet, but not enough to download it.

[Fast_Ed]

Was just reminded about this spreadsheet by Kevin.

I think my initial reaction was 'Cool, kevin seems annoyed by the formats.'

Now that i read it, I'd like to place an order!

Aren't the door hinges an upgrade for a civvy b-body? I bought the last upper ds one in New england for my RMW a while back.

[kevm14]

Spreadsheet with comments.

[Adam]

More comments. I added a couple of items I forgot.

One challenge of this project will be to keep the car in some sort of rolling form. This will come into play if I scavenge the front suspension. And/or the rear axle. I was thinking of making a bracket out of steel tubing that attached to the frame at the suspension mount points then adding some Harbor Freight casters to roll it. Steering may also be a problem if I take the box and linkage. Maybe swiveling casters?

[kevm14]

It will have similar steering feel with the steering box removed, on the casters. Zing

[kevm14]

Some good VSS info: http://www.jagsthatrun.com/V8-chapters/ ... ensors.pdf

I am still trying to figure out if the 4000PPM VSS will work (linked in the excel file). Or if you need the 40 pulse per driveshaft rev. I think you need the 40. The 4000PPM was for interim-generation cars (not '8051 PCM and later than the 80s TBI/TPI stuff, so late TPI and batch fire LT1s). This is very high res. TBI was 2000 PPM, late TPI and early LT1 was 4000 PPM and the 8051 LT1 generation was 40 per driveshaft rev, which is on the order of 100,000 PPM.

From the PDF (details each tailshaft type in an image on page 8):

4L60-E RELUCTOR RING RELOCATION
The 4L60-E transmission is used in 1993 and newer trucks, and it in 1994 and newer rear-wheel drive cars. This transmission
has no provisions for a speedometer cable, but Stealth Conversions has developed parts to run a speedometer
cable.
1. This output shaft is from a 1983-1992 Camaro or Caprice with the 700-R4 transmission. Near the
middle of the shaft is the gear that drives the governor on the non-electronically controlled
transmissions. The overall diameter of the governor gear is 1.42"
2. This output shaft is from a 4L60-E transmission which has no gear to drive the governor because
the transmission is electronically controlled. The diameter of the shaft at the governor gear
location is about 1.30 inches. The output shaft does not have locating holes for the speedometer
gear because they don’t use speedometer gears. Instead, a 40-tooth reluctor ring is pressed
onto the shaft which provides the signal for the engine computer and the electric speedometer.
3. This output shaft has a 40-tooth reluctor ring (Stealth Conversions part # 4L60-003) that installs
in the governor gear location so that a speed sensor can be mounted in the governor gear area
(see page 12-11). The inside diameter of the reluctor ring is about 1.30 inches. The outside
diameter is about 2.62 inches. This reluctor ring location requires drilling and tapping a 3/4-16
UNF threaded hole into the transmission case. The speedometer gear is held in place with a
clamp assembly (Stealth Conversions part # 4L60-004). See page 12-10 for a close-up.
4. This output shaft has a reluctor ring sleeve assembly (Stealth Conversions part # 4L60-005) that
has a 40-tooth reluctor ring and a clamp to hold the speedometer drive gear. This requires a modified
tailhousing (see page 12-12 thru 12-15), but the transmission case does not have to be
drilled.

Summary: It is possible to run a mechanical speedo off a 4L60-E but it is not a bolt-in. You may even have to persuade the floor pan since the VSS assembly becomes longer (see page 6 - cable plugs into the VSS so it could hit outside the trans tunnel).

http://www.jagsthatrun.com/4L60_Order.html

Here is my interpretation of the options:
1) Parts are Stealth Conversions 4L60-003 and 4L60-004 installed onto your existing tailshaft. Trans case must be drilled and tapped to a 3/4-16. http://www.jagsthatrun.com/Pages/SpeedS ... uctor.html
Looking at $99 for the reluctor (or $104 if it's a 1.42" shaft) and $40 for the clamp. Plus $54-$91 for a VSS that crosses to P/N 15547452. Bring your own speedo gear set ($72). This is the cheaper option.

2) No drilling but modified tail-shaft housing. http://www.jagsthatrun.com/Pages/Parts_ ... rRing.html ($90) and http://www.jagsthatrun.com/Pages/Parts_ ... using.html ($220) plus you need to bring your own speedo gear set (possibly use the gear on the monte 200-4R but I'm not sure about compatibility - $72). Plus the 15547452 VSS.

3) Relocate VSS to just in front of the diff. http://www.jagsthatrun.com/Pages/Parts_ ... -Diff.html ($80)
Then just use the 4L60-004 kit ($40) to install the speedo gear on your tail-shaft. Add the 15547452 VSS and $72 gear set. This may be the cheapest? But I don't like it at the rear, exposed as it is. Not sure what you do at the tail-shaft housing.

Please check my work. VSS/speedo shit is usually annoying. Ask my father in law.

I would be curious to see where your 4L60-E reluctor is located. Is it in the tail-shaft housing? Is it where the mechanical speedo cable would normally go? If so then you have to do one of the above options I think.

[Adam]

The VSS in my Caprice is in the tail shaft. I no longer have the Monte's 200-4R, so no original gear.

[kevm14]

So that makes sense. You need to relocate the reluctor to another location so that location is freed up for the speedo cable. That's the conventional location for that. And there are three ways to relocate the reluctor (trans case, tail-shaft housing mod, and at the diff).

Frustratingly, if it was the older 2000 PPM or 4000 PPM VSS, you could use one of those combination adapters. No such luck with the high res 40 pulse per driveshaft rotation reluctor of the '8051 generation.