Twin Turbo Skylark 350 Progress by sean Buick 76

By diyauto
( 2 )

7 minute(s) of a 135 minute read

7-3-2016

Well, just an update... My girdled short block is at Chris Skaling's shop, he will do the alum head porting final assembly and dyno NA then ship it to me.

The car hauler project is coming along! I will use this to carry light vehicles around when I don't want to hook up the big enclosed trailer. Next thing to do is headers and new exhaust off the 460, and then air bags in the rear to help level it out under load.






7/20/16

Unfortunately the new owner of my car is having some issues. This is the same thing I had happen on my engine, so we are closer towards sorting out the problem. The car was running great on 7 PSI of boost, good at 10 PSI and then at 12 PSI it blew the head gasket on number 3 cylinder. I gave him some Scotty Brown gaskets and again it blew the number 3 cylinder head gasket. It was making 460 HP at the tires on 10 PSI and running 11s in the quarter.

This is the car:









The plan for both of us is to add a Air Fuel (02 sensor) in the header tube at the #3 cylinder as well as an Temperature probe so we can monitor things better. Right now we are only seeing an air fuel ration of an average of the 4 cylinders on that bank.


7/20/16

Well things are coming together with the car hauler project it is 95% done I just need to finish up a few details like fine tuning the ramps, and then adding some air bags to help carry the load when hauling. There are spare ramps secured at the rear of the deck as well to help with low cars.











And the 88 Daytona is QUICK! The boost is raised up on the turbo and it is a nice little car! Going to sell it though once I have it fully fixed up:





And the 75 Regal is running well... It has a SP code 10:1 350 in there and a 200R4 right now, makes a great highway hauler:









7/24/16

I traded some crap I had laying around for my old engine and trans that I sold with my other Skylark last year. The new owner had it making good power but blew the head gasket due to a bad tune up and then he dropped in a LS engine with turbos and it is now 1000 rear wheel HP street car with 6 speed and 4 wheel disks.

I had bought this engine from Jay 3000 a while back, nice setup well built and the short block has handled the turbos well:







Balanced engine with some mallory metal:



74 capscrew rods with ARP:




It sat for a while and then I sold it with my old car:



I sold the car with the second turbo kit which I also got back!



And as tough as it was to let go the nice single plane intake went with the car too so its nice to get that back!



These ported heads came with the engine from Jay but I never did let them go, I gave him some stock rebuilt heads instead.





This 200R4 trans was $3600 originally was happy to get it back. CK Performance rated for 800 foot pounds of TQ:





Here was the results of that good bottom end with some stock un-ported heads with 10 PSI and this is rear wheel HP. He had some air/fuel distribution issues and it looks like it went lean on cylinder 3 as it blew that head gasket a few times. It ran 11s in the quarter at almost 4000 pounds and 3.42 gear.



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