Twin Turbo Skylark 350 Progress by sean Buick 76

By diyauto
( 2 )

4 minute(s) of a 135 minute read

9-30-2012

Thanks! I think it will look very good once it is painted! Do you like flat hood hiding the twin turbos???


Here is the car that inspired the paint this car is getting:









10-1-2012


Yeah, my effective gear ratio (compared to stock tires) is a 2.73 now with my tall street tires and the 3.42 gear. So I will rev 2500 at 65 MPH which should be a good RPM to keep from lugging but not burn too much fuel. I really do not think I will bother with a gear vendors, if I want to drive fast I will rev about 3000 RPM at 75 MPH so that is not too bad. Sure I will only get about 10 MPG at 75 MPH but who cares, it will be a lot of fun with the twin turbochargers singing and dual 3" exhaust rumbling away under the rear bumper. I might add 2.5" tailpipes if I find it noisey. I am using good mufflers too so it will not be too loud! The turbos really remove a TON of noise from the exhaust as it smooths the pulses out. The X pipe further reduces noise, and I might add 2.5" tailpipes to make it even more stealth. 


Of course when it is under boost at 6000 RPM it will make some VERY loud music!!!!!


I added this really good sound deadening material in the whole interior and that should really help make the car nice and quiet on the highway! Who cares about adding 25 pounds when you have a hot little 355??


http://www.fatmat.com/bulk/rattletrap/100.html



12-10-2012


Here we go! the custom sheet metal intake and turbo kit are done!!!! All this goodness and torque fits under the stock hood without a scoop!!! SLEEPER!!! When people ask i can just say its a mild 355 inch with low compression!


Now I just have to install the good engine and trans and have some fun!!!!!!


















I was planning on using the trans brake and leaving off the line with that, but that trans has a manual valvebody and I figuer there would be a lot of slip on the highway with my 3200 stall converter... Being a street car I decided to save that trans for a spare.


So I got a great deal on this SP-400 all rebuilt by a pro with a new converter (3200 and 1800 stall) and that one is auto shift...


So the plan with the SP-400 trans is to leave off the 4 wheel line lockers at 2600-2800 RPM in high stall mode and then have the converter switch to low stall at the 60 foot mark. 


I might try foot braking it before I instal the line lockers, gonna take some trial and error to get it to hook....


The car is going in for a 4 link rear suspension as soon as I get it back from the US.... I have to drop the engine off for final assembly and then I just need to swap in the engine and trans and mess with the details.




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