|
Hi - I am 'fettling' (my word - my wife uses 'f$@t-a*sing around with) my new 1380 track day motor (Dave Anton built , A+ block, forged 11.5:1 pistons, steel capped bottom end, VP8SP cam, 1.5 rollers, SH belt drive, Pederson headers, 123Tune, 48 DCOSP on Swiftune SC/CR 4 synch/3.7 ATB)) and decided to go with a leccy fan, partly cos my 4-blade woulx't fit, but also for faster warmup, better cooling at low speed (its a road car mainly), better acceleration and being able to set it to cool the engine after switch off, reducing potential heat soak/vapour lock issues.
In addition, the engine is much quieter, and I'm told the fan will use less power than the belt driven fashion.
So far, I've had the engine running up to full song in an aluminium shed at 40° C, and the fan seems able to hold it at about 86°. I bought the fam and thermal switch from supercheap for about $150. The 12 inch model fits neatly on the outside of the radiator slots under the wing and doesn't foul anything. It might be possible to fit a small model (10 inches) on the inside, but really it's easier to put outside, and no cutting is required. I don't recommend you remove the bars of the radiator aperture, is that panel has an important role in triangulating the front subframe, and extra reinforcing may be needed. Also possible to make up some additional aperture shaping to reduce spillover of air and get full value. Haven't tried it in the real world yet but will let you know as soon as. Cheers, Peter
Note - this id not a variable speed set up - it's on or off
_________________
Min - 1970 MkII S, 119hp Dave Anton 1380, SH Engineering belt drive, 1.5 rollers, 123Tune ignition, 48 DCO SP Weber, HP Headers, MSD, Maniflow ex. Swiftune SC/CR 3.7 + ATB, all KAD front, antiroll bars and gas shocks, 6 inch Minilites with Dunlop Sports
|
