Reply With QuoteI had an equivalent installation in my 1974 1.6 Litre Toyota Celica. I ran 1.5 Bar above atmospheric using a twin scroll Garrett TO4B turbo fed by a 2" SU with a 1/2 inch ID fuel line, outputting to a 3" down pipe eventually reducing to a straight through 2.5" exhaust.
I had to put 1/2 inch thick asbestos sheeting down the fire wall and all the way under the front passenger seat to reduce the heat cooking the passenger's feet.
On a car that cost me $3,573 brand new on road, I spent over $5,000 modifying the motor alone. (During this period, I was heavily involved in car club motor racing. I raced this car in the open category.)
With the racing cam it had nothing below 3,500 rpm then all hell broke loose right up to 8,000 rpm.
I transmitted the power through a Borg & Beck 8.5" solid centre twin plate clutch.
Brakes were 4 piston calipers off a formula 5000 racing car.
I might add the motor lasted 20,000 km before it needed to be completely stripped down. When we looked at the top compression ring gland it had stretched to double the height.
Along with 100 octane fuel, I ran a separate alcohol injection set up into the inlet manifold.
As you might have gathered by now, good fuel economy was not a criteria. But "puttering" around Melbourne I achieved a maximum of ~20 miles per gallon. On the race track it dropped to ~3 miles per gallon.
(Oh well. Those were the "good old" days.)
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Originally Posted by Shock&Awe
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