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CHEAP TRICKS FOR 4k's?


Guest stephenranks

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if its in a corolla put it in a starlet.

if its in a starlet alrready then throw away your interior, spare wheel, jack etc etc. join a local rally club, and buy some old lexan windows, basically make it as light as poss....

not quite what your asking though....

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from factory specs a 5k have more torque.. not power. which is better for acceleration in normal rpm range. so yeah a 5k would be a nice upgrade. i believe 3k-b has the most factory power.

no 3k-b are not the only big port! alot of ke20 3k have a single carb bigport head. my factory 3k-b ('75 ke25) is a smallport twin carb... many variations aye.

also swapping heads round willy nilly can bugger things up. there're many differences in the chamber design and piston dish. sometimes ya can end up with 13:1 compression or something stupidly low. later jdm 4k like after '83 have a twin squish head and dished pistons.. early ones have flat pistons and more cc in the head chamber... different pushrod heights.. yada ya. unless you know what ur doing.. then better off skimming the std head or getting a thinner gasket etc to up compression and maybe do some mild porting to get er flowing.

imo first thing after a tune up (plugs, fluids, filters, cap, rotor, points, timing, blah, is replace the peeshooter exhaust with 1.3/4 - 2". put a foam or oiled filter on it and some cold air ducting from the front wouldnt hurt. electric fan. cams and heavier valve springs make some good gains after exhaust and intake done. and yeah raise compression. can upgrade carb to something slightly bigger. could lighten flywheel for some better acceleration.... the usual shit. speed cost money, how fast you wanna go?

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