We did a lot of work on my NA m20, smoothed out the 885 head, increased the compression a little, built the short block, balanced it etc. Installed headers and Megasquirt.
It ran great but I want more.
Here is a video of the restoration (I brought the car in from California with 250,000 miles on it) with the Nat. Asp. engine:
short run (NA):
another run:
So, now it is time for a turbo.
OBX headers did not fit so we cut them and will weld an insert so we have a perfect fit and seal.
New Holset H1c, it looks like a nice little turbo which I hope with give me excellent power and yet keep it a nice daily driver.
The oil return line connection is welded into the pan.
More info as we make progress
Chuck
Below is the intercooler being installed. Japanese Yonaka 18x9x2.5" with 2.5" piping. Very well made. I spent a lot of time looking for an intercooler and was lucky to find this jewel. The 9" height fills up the open space you get with a 6 or 7" high cooler plus this one is 1" shorter in overall length. The piping kit that I bought was kind of a joke........ way, way to many tubes. I could have bought a few pieces instead. I am able to keep my oil cooler, air conditioning etc.
Chuck
Huge setback!
September 2013
We got the car running and it is a real screamer. We keep the tune conservative with a rich mixture and not to much advance so I was looking forward to how it would run with a fine tune. After a short time the engine just did not run right, poor idle and erratic. I noticed that I was using gas like there was no tomorrow. To add insult to injury, the car started to smoke horribly with blue smoke. Due to the poor idle and the smoke, I pulled the plugs to do a compression check. When I turned it over to check #1, gas sprayed out of #6!
Sure enough, the #6 injector was stuck open! I guessed that I had broken a piston or who knows what. We checked some more and found the turbo's shaft was sloppy (a brand new Holset). So, I ordered new bushings and will install them tomorrow.
I wonder if the contaminated oil (gas) caused the turbo to wear out or what? Any recommendation for the size of the oil restrictor?
Chuck
It ran great but I want more.
Here is a video of the restoration (I brought the car in from California with 250,000 miles on it) with the Nat. Asp. engine:
short run (NA):
another run:
So, now it is time for a turbo.
OBX headers did not fit so we cut them and will weld an insert so we have a perfect fit and seal.
New Holset H1c, it looks like a nice little turbo which I hope with give me excellent power and yet keep it a nice daily driver.
The oil return line connection is welded into the pan.
More info as we make progress
Chuck
Below is the intercooler being installed. Japanese Yonaka 18x9x2.5" with 2.5" piping. Very well made. I spent a lot of time looking for an intercooler and was lucky to find this jewel. The 9" height fills up the open space you get with a 6 or 7" high cooler plus this one is 1" shorter in overall length. The piping kit that I bought was kind of a joke........ way, way to many tubes. I could have bought a few pieces instead. I am able to keep my oil cooler, air conditioning etc.
Chuck
Huge setback!
September 2013
We got the car running and it is a real screamer. We keep the tune conservative with a rich mixture and not to much advance so I was looking forward to how it would run with a fine tune. After a short time the engine just did not run right, poor idle and erratic. I noticed that I was using gas like there was no tomorrow. To add insult to injury, the car started to smoke horribly with blue smoke. Due to the poor idle and the smoke, I pulled the plugs to do a compression check. When I turned it over to check #1, gas sprayed out of #6!
Sure enough, the #6 injector was stuck open! I guessed that I had broken a piston or who knows what. We checked some more and found the turbo's shaft was sloppy (a brand new Holset). So, I ordered new bushings and will install them tomorrow.
I wonder if the contaminated oil (gas) caused the turbo to wear out or what? Any recommendation for the size of the oil restrictor?
Chuck
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