70 L78 Camaro - Dialing in more originality
 

A few member have asked what I have been up to lately. So here is the explanation. I pulled the LS6, M22 tranny and exhaust out of the car to make way for the new. The motor is now numbers matching to the car as is the tranny. Headers are gone to make way for exhaust manifolds and smog. Here are a few shots.

From the top.
http://img.photobucket.com/albums/v6...o/IMG_3611.jpg

Showing off Eric's carb work and mostly complete TCS.
http://img.photobucket.com/albums/v6...o/IMG_3614.jpg

The M21.
http://img.photobucket.com/albums/v6...o/IMG_3605.jpg

Re: 70 L78 Camaro - Dialing in more originality
 

Very cool D!

Re: 70 L78 Camaro - Dialing in more originality
 

Look's good D,can't wait to hear it running.

Re: 70 L78 Camaro - Dialing in more originality
 

Looks great! When did you get the numbers matching (VIN matching?) engine for the car? I always thought the TCS was only for automatic cars though.

Re: 70 L78 Camaro - Dialing in more originality
 

I believe Darren has a appropriately dated CKO coded engine. It is not the engine, born with his L-78 body.

Re: 70 L78 Camaro - Dialing in more originality
 

[ QUOTE ]
I believe Darren has a appropriately dated CKO coded engine. It is not the engine, born with his L-78 body.

[/ QUOTE ] Thanks for answering that for me Chuck. https://www.yenko.net/ubbthreads/imag...mlins/haha.gif I'm sure everyone is well aware that it is not the original motor. I am not hiding that fact nor do I care that it is not the "born with" motor.

Re: 70 L78 Camaro - Dialing in more originality
 

nice work D, keep the pics coming.

Re: 70 L78 Camaro - Dialing in more originality
 

Ok, I was gonna say how in the heck did you find the original motor. https://www.yenko.net/ubbthreads/imag...ns/shocked.gif So what is that TCS for exactly, I thought it was automatic only but maybe I'm thinking of the anti diesel solenoid. Isn't the L78 also supposed to have that fuel line support bracket that bolts up to that front carb mount stud? Looking good!

Re: 70 L78 Camaro - Dialing in more originality
 

Looks great Darren...


https://www.yenko.net/ubbthreads/imag...-I-Have-It.gif https://www.yenko.net/ubbthreads/imag...-I-Have-It.gif https://www.yenko.net/ubbthreads/imag...lins/drool.gif https://www.yenko.net/ubbthreads/imag...lins/drool.gif https://www.yenko.net/ubbthreads/imag...lins/drool.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Looks real nice ,like the ink stamps on the carb. John

Re: 70 L78 Camaro - Dialing in more originality
 

Sharp Darren! https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Neat Post, I really enjoy these 'Make-over' threads.
Keep the pics rolling.

Reminds me I thought Seattle Sam was working on his 70-L78 mill makover,,,,

Jim https://www.yenko.net/ubbthreads/imag...ouguysrock.gif

Re: 70 L78 Camaro - Dialing in more originality
 

the 4 speed Z28 had the TCS switch, not sure why the L78 manual trans wouldn't either ...

Re: 70 L78 Camaro - Dialing in more originality
 

My 70 SS L-48/4spd Camaro also has Transmission Controlled Spark, as does the L-34.

I cant recall which 70 Chevrolet doesnt have it ???

Re: 70 L78 Camaro - Dialing in more originality
 

70 L78 4 spds would have the TCS as well.

Re: 70 L78 Camaro - Dialing in more originality
 

Looking forward to seeing the finished product, what a nice car.

Re: 70 L78 Camaro - Dialing in more originality
 

-----Darren,,,Engine looks great! Im certainly no authority but wouldnt the PCV hose go around the front of the motor, not the back. I never like its proximity to the throttle linkage when it goes around the back, but thats me........Bill S

Re: 70 L78 Camaro - Dialing in more originality
 

[ QUOTE ]
-----Darren,,,Engine looks great! Im certainly no authority but wouldnt the PCV hose go around the front of the motor, not the back. I never like its proximity to the throttle linkage when it goes around the back, but thats me........Bill S

[/ QUOTE ]

Bill-

It hangs on two clips mounted on the rear of the dual snorkel air cleaner.. Thanks to all for the compliments. https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Wow! Looks really good! https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 70 L78 Camaro - Dialing in more originality
 

That's been a topic of discussion on my car too Bill. My car didn't have the clip on the back of the dual snorkle and the PCV hose has always been routed to the front.

It's been pointed out to me by many 'experts' in the field. I know how it was delivered and I know how it's gonna stay. https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Lookin' Great D! And if you want the fuel line bracket give me a call. I have a spare.

Does Gavin get the first ride? https://www.yenko.net/ubbthreads/imag...iggthumpup.gif https://www.yenko.net/ubbthreads/imag...iggthumpup.gif https://www.yenko.net/ubbthreads/imag...mlins/flag.gif

Re: 70 L78 Camaro - Dialing in more originality
 

-----OK! https://www.yenko.net/ubbthreads/imag...lins/blush.gif Hope you didnt take that as a diss as it wasnt intended that way. I have been looking at alot of Holley equipped cars lately trying to figure this out, but apparently the factory would run it either way. Some engineer somewhere probably had a reason.......Bill S

Re: 70 L78 Camaro - Dialing in more originality
 

[ QUOTE ]
I know how it was delivered and I know how it's gonna stay. https://www.yenko.net/ubbthreads/imag...mlins/grin.gif



[/ QUOTE ]

Yeh but that orange lift bracket has got to go............j/k Cumby! https://www.yenko.net/ubbthreads/imag...mlins/wink.gif https://www.yenko.net/ubbthreads/imag...mlins/grin.gif I have looked at his PCV line closely and would have to agree with him after he pointed some things out. https://www.yenko.net/ubbthreads/imag...ns/scholar.gif

Darren, does this mean my first ride drive is null and void and I now get another.......? https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Re: 70 L78 Camaro - Dialing in more originality
 

[ QUOTE ]
-----OK! https://www.yenko.net/ubbthreads/imag...lins/blush.gif Hope you didnt take that as a diss as it wasnt intended that way. I have been looking at alot of Holley equipped cars lately trying to figure this out, but apparently the factory would run it either way. Some engineer somewhere probably had a reason.......Bill S

[/ QUOTE ]

At least that is what the assembly manual calls for. Maybe they stopped using them at some point. They are a PITA and Dennis would have know if he had them the first time he tried to take the air cleaner off.

Re: 70 L78 Camaro - Dialing in more originality
 

My car is a late build so maybe they ran out of clips. But the hose still ran around the front. https://www.yenko.net/ubbthreads/imag...lins/dunno.gif

And for the record: Rick is NOT one of the 'experts' I referred to. I used that term tongue-in-cheek. Rick has ALWAYS been open minded about the anomalies on these cars. https://www.yenko.net/ubbthreads/imag...mlins/flag.gif

Re: 70 L78 Camaro - Dialing in more originality
 

[ QUOTE ]
And for the record: Rick is NOT one of the 'experts' I referred to. I used that term tongue-in-cheek. Rick has ALWAYS been open minded about the anomalies on these cars. https://www.yenko.net/ubbthreads/imag...mlins/flag.gif

[/ QUOTE ]

https://www.yenko.net/ubbthreads/imag...mlins/grin.gif Never took it that way. For one thing, I am no expert, just someone who does a LOT of research and who is passionate about correctness on the cars I restore and agree totally with what you have said before, NEVER SAY NEVER!!! You are referring to the "experts" that come up to you at car shows and tell you everything that is wrong and they don't even own a car. https://www.yenko.net/ubbthreads/imag...s/rolleyes.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Darren,

Looks great! https://www.yenko.net/ubbthreads/imag...mlins/haha.gif
"Just drive it like you stole it!" https://www.yenko.net/ubbthreads/imag...ns/scholar.gif

Jeff x 2 1/2 https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Sweet Darren, sweet!!! When can we expect to see it on the road...Lombard, Rolling Meadows, Goody's??? https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 70 L78 Camaro - Dialing in more originality
 

With fingers crossed it should be running this weekend.

Re: 70 L78 Camaro - Dialing in more originality
 

Awesome D, your car was beautiful before you started this process, I can't wait to see it now!!! https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Thank you Randy and all. I appreciate it. https://www.yenko.net/ubbthreads/imag...ns/worship.gif

Re: 70 L78 Camaro - Dialing in more originality
 

I never really thought about the TCS setup so what does it really do, pull timing? I know I've seen it on a bunch of LS6 cars but never really noticed it on the L78 cars. The 70 L78 Camaros had a bunch of really strange 1 year only things going on so we still have a lot to learn. https://www.yenko.net/ubbthreads/imag...iggthumpup.gif

Re: 70 L78 Camaro - Dialing in more originality
 

Been learning a bit about TCS (Transmission Controlled Spark) with my '70 Nova recently and basically it does not allow vacuum advance of timing in low gears: 1st & 2nd for TH400 and 4 speeds. It is an emissions reducer.

Re: 70 L78 Camaro - Dialing in more originality
 

TCS= temp. controlled spark. Not transmission controlled spark.

Re: 70 L78 Camaro - Dialing in more originality
 

-----In light of that, Sam, would a guy be wise to make the set-up non functional one way or another??? It could easily be done in a way that still appeared as though the set-up was fully functioning. Sort of like gutted smog-pumps.......Bill S

Re: 70 L78 Camaro - Dialing in more originality
 

Hey Bill,

You bet I plan to discretely disconnect this system (haven't figured that out exactly).

I still contend that, altho temperature is an input to the TCS system, the primary input is what gear the transmission is in, therefore TRANSMISSION Controlled Spark. Temperature input is a go, no-go sytem (I think https://www.yenko.net/ubbthreads/imag...mlins/hmmm.gif). Vacuum advance is available while car is cold, but once the water temp switch (I don't think it is a sender but rather a switch) says its warmed up, then the vac. advance is cut out (in low gears).

Re: 70 L78 Camaro - Dialing in more originality
 

The switch on MY 70 Z28 4 speed is a TRANSMISSION Controlled Spark switch, it does not allow any vacuum to the distributor until it is in 4th gear, one of the FIRST things bypassed or thrown away too ...

Re: 70 L78 Camaro - Dialing in more originality
 

http://img.photobucket.com/albums/v4...xterior112.jpg

Re: 70 L78 Camaro - Dialing in more originality
 

You can actually re-route the vacumm lines on and around the TCS switch itself, it will continue to look correct and will void out the operation of the switch.

Re: 70 L78 Camaro - Dialing in more originality
 

Exhaust installed as well as most of the smog. Should be firing it up tomorrow. I'll have more pictures then.

Re: 70 L78 Camaro - Dialing in more originality
 

Uh, er, sorry 'bout side trackin' your thread Darren https://www.yenko.net/ubbthreads/imag...lins/blush.gif Lookin' forward to follow on photos. Good luck!!! https://www.yenko.net/ubbthreads/imag...lins/laugh.gif


https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif