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Messages - hgger69

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Mild Modifications / Re: The Hugger goes ZL-1....
« on: February 09, 2018, 11:46:40 AM »
Those exhaust clamps appear to be nice heavy duty units..  :)
Gary, they truly are!  8)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: February 08, 2018, 09:17:22 PM »
You guys are very creative. Looks good.
Many thanks, Kelley! :)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: February 08, 2018, 07:56:17 PM »
Well, weīre struggling on with the missing parts for completing the build.....  :P

We realized that the ZL-1 Camaros used the 4-rows radiator with the curved-neck so we did a rebuild of the 3-row big block radiator that came with the car. We think it will be ok with just a 3-row cause the ZL-1 engine maybe needs less cooing and I don't have an AC!? My friend att the local radiator shop once again stepped in a made a nice work on the radiator:

We think we got the angles ok:

With some fresh paint on it and test munting of the new fan shroud it looks like this:

I had to order new fan shroud clips from USA to complete the rebuild since one were broke and the other one missing:

Iīve also finished the work on adapting the down pipes to the exhaust system already mounted on the car.
I started to cut the pipes to get a rough shape of them. Then I made some cuts in different places on the down pipe to rebound the pipes where I needed.
Some bits of the pipes that I don't needed:

Test mounting on car:

It the passenger side pipes that needed most work. Then I took the pipe to my friend who did som welding on it.

Complete with paint it loks factory, huh? :) ..and yes, we had to weld another lambda probe mount while the old one was in the way of the steering gear arm! :(

Before mounting on the car I got hold of very nice pieces of joints and clamps from our local speed shop.

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 28, 2018, 06:35:27 PM »
Hakan, I think I'm wrong. There may not be a hose with a molded curve for 69 BB. I was thinking different year and I should've checked before mentioning, sorry.  :-\
No worries, John! ;)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 25, 2018, 06:51:18 AM »
This is great. Thanks for sharing.
Thank you! :)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 25, 2018, 06:49:48 AM »
Thanks for the little video! What a pretty machine!!
You may check the next time you need to order parts, I'm pretty sure the correct molded bypass hose (between the intake and water pump) is still available so you won't have to live with that kinked piece of straight hose.  ;) 
Great work and thanks for sharing!!
Great to hear, John! :D
I thought I had the correct hose on the bypass and it's not molded...never seen a molded one? Was it molded from factoy you mean?

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 22, 2018, 09:24:47 PM »
Almost looks too good to drive.
Thanks Kelly, you're to kind! :)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 22, 2018, 03:36:56 PM »
I just have to update while you guys donīt want to stop nagging me..... ;D

Weīve now reached the critical moment in this project when the engine is going back into the Hugger. The car isn't aware of whats going to happen with it in this very moment:

With the engine still mounted on the frame from the dyno itīs easy to lift it with help from two Camaro-friends and a reliable engine crane:

We moved the Hugger sideways in ny garage for easier access to the engine bay during the surgery...anf of course we used sterile clothing.  ::)

Oh my....  :P

We were two guys watching the engine bay and another running the crane 

Tada, the ZL-1 really fitted but its a tight fit!  ;)

After we mounted the TH350 and engine together we pushed the car back to its parking place for further and smaller surgery!

Here are the temperature-controlled clutch, which was standard on 427 COPO,  and the for 1969 original seven-blade fan mounted:

I couldnīt hold myself so I just had to test mount the carb and cowl air feels so unreal but even though so right!  8)

A bunch of things still remains do to, but every smal step is a step towards getting the Hugger on its wheels this summer!  ;)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 18, 2018, 08:20:43 PM »
Itīs not just a simpel engine swap when you go from a small to a big block...nope, why go esy when you can go hard?  :P

One of these other things is to also swap the heater core. As you all know the SB has its water out- and inlets closer to the center but thats no good when the big block and valve covers are in the way of the hoses.

When we was fortunate to win ROTM here last year I ordered a BB heater core from NPD for the price money.
Do you think it fitted?..  ::) You can see the new core to theft and my old SB core to the right.

I had to let our local radiator-shop make a new one and the only thing we kept was the pipings. It turned out very well i think ut the price money is long gone...  :-\

I was happy to one last time crawl under the dash and install the new heater core...

Hmm, doesnīt the pipes seem to be a bit too short?  ???

Yuup. they are! Back to the radiator-shop for a quick is how it turned out:

Much better! ;D

Besides the heater core Iīve also mounted the correct cable for the starter:

Now I also now the correct place for the minus-cable on a BB:

I also wanted to have both a oil pressure gauge AND the original oil pressure indicator in the dash wired so I have to use this solution:

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 14, 2018, 06:50:18 PM »
Despite all the hassels we had and while the engine was in the dyno stand we decided to do some runs to se what we could get out of this first engine build of mine!
For you guys that that have been demanding a video, I have to disappoint you, sorry!  :-[
We were too busy to check on the engine and dyne during this test runs so i just have these two short vids on it. Taken with my iPhone 7.

First one from brakin the cam in. The smoke is from the WD-40 I used for protecting the manifolds from being rusty during storage.

Second one is from the gauges of the dyno control panel. Our ZL-1 sounds eager and the throttle respond is ok despite the saggy ignition system!

The original ZL-1 from Chevrolet made around 376 hp at 6750 rpm, dyno tested by Bill Porterfield, with a similar setup as ours with manifolds, original air filter and alternator mounted. Our goal with this build was to get as close as Chevrolets original ZL-1 as possible but within our conservative budget. Therefore we had a sligthly lower compression ratio, a used Holley 750 carb and, as we discovered during the cam break-in process, a not-so-good ingition system! We do have a more race influenced intake but that aren't always the best way to go.. ???

We put a safety stop at 5700 rpm and we then reached around 420 hp, with the curve still rising....we achieved the goal with a margin!  :P
The torque landed one 544 Nm (401 at 4100 rpm.

We are very satisfied with the dyna results and with a new ignition system, bigger carb, headers and taking the rpm ut to 7000 weīre convinced that our version of the ZL-1 easily could reach 500 hp!  8)
But the goal was NOT to get as much as possible out of it, it was go get a rather street friendly engine and when I really like manifolds on a ZL-1 Iīll keep it like this... for a while at least!  ::)

The engine is now at home waiting to get back in the Hugger again!

General Discussion / Re: Pair of ZL1 COPO's... at Auction.. :)
« on: January 05, 2018, 09:19:09 PM »
Read of them before, isn't Gas Monkey and RR the sellers?  ::)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: January 03, 2018, 09:02:46 AM »
Finally the cam from Crane has been broken in...but it didn't happen without any problems!  :(

The starter was the first thing that dint work as is thing that happened was that someone, wasn't me though, mounted the flex plate the wrong way! Then we had to shim the starter a lot of times before we could use it with satisfaction...
The next thing that we discovered was the internal electrical system on this home made dyno wasn't build for these type of BB Chevy engines so we almost blew it trying to start the mighty ZL-1!  :o The owner made a quick fix and then it was almost ok...
This dyno has been adapted for smaller Volvo and Beemer engines with turbos and other cheating parts!  ::)

When we finally got the ZL-1 to run it was just to find out that it didn't run on all eight so we just hit the emergency button! Responsible for this debacle was yours truly, who really is a newbie in engine building and therefore hadnīt adjusted the hydraulic lifters correctly and that caused the engine to NOT run on all cylinders! Do again, do right!  :-[     

We then had difficulties with getting the timing correct, the strobe lamp wasn't working as it should. We tested another lamp but with same result so the next thing to look at was the cables and ignition coil. After a couple of starting attempts we realized that that the reused ACCEL coil from the old 355 finally gave up!  :(
This ACCEL coil had been working great on my 355 so I thought it was ok to reuse it on the ZL-1 in an attempt to cut the budget but that backfired!  :-[  We also discovered some bad cables and the only good thing about this is that these kind of problems are nice to discover now while the engine is sitting in a bench instead of being mounted in the car!  :roll:
The owner of the dyno had an old HEI-distributor on a shelf in deep storage so we borrowed that for further testing on the dyno and it worked ok. :|

When we finally got the engine running on all cylinders it ran very nice and smooth on idle actually could do the comparison with the famous RR-engine where you could put a standing coin on top of the engine and it would not fall! Many thanks to my engine shop that did the internal balancing! :D

After a successful break-in of the cam we took the oil pan down for inspection of oil and particles.... nothing suspicious was found and that felt nice as well. I really appreciate the one-piece seal during this inspection! :)

While the cam was broken in with just the outer springs mounted, the complete set of springs now had to be in place. To get the tight spring rates and height we realized we had to order new retainers from USA and of course that delayed the whole process again..
When this parts had arrived and mounted together with all the springs we had to adjust the hydraulic lifters once more..piuuh, its a lot of unexpected things to consider when building an engine!  :P
I borrowed a very nice tool for mounting springs though, very handy!

An old and very used HEI-distributor, not mounted in pictures above, together with almost home made ignition cables and a carb from the CSB 355 that's not optimal for the ZL-1 are not the best conditions for getting a real deal dyno test of a ZL-1 but we will try to get back here with one when the engine still is on the dyno...  ::) the hours in the bench are running away as well!  ::)

General Discussion / Re: 1969 mach1 riverside pace car Indian fire red
« on: December 31, 2017, 09:00:49 AM »
Dude, you're on the wrong side of the road!  ::) ;D

Mild Modifications / Re: The Hugger goes ZL-1....
« on: December 23, 2017, 10:45:19 AM »
That looks amazing on the dyno. Video please!!!!!!!

Thanks Scott, Iīll try! :)

Mild Modifications / Re: The Hugger goes ZL-1....
« on: December 22, 2017, 07:55:10 AM »
I wouldn't mind seeing a video of that.  :D
Me neither..!  ;D

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