WE IN­VES­TI­GATE HOW TO TEST YOUR BOOST SYS­TEM TO MAKE SURE EACH AND EV­ERY PSI IS REACH­ING THE COM­BUS­TION CHAM­BER

NZ Performance Car - - Weekend Workshop -

Wel­come to the Week­end Work­shop, a place where you can save some cash by get­ting your own hands dirty. Th­ese tech guides aim to arm you with the nec­es­sary info and knowl­edge to get out there and give it a go your­self — no pro­fes­sion­als needed — and at a price that won’t break the bank. This month we delve into the world of boost leaks. This of­ten silent thief has been rob­bing many per­for­mance car own­ers since the first tur­bocharged car came off the pro­duc­tion line. Per­haps you just com­pleted a turbo con­ver­sion, or added in a boost con­troller, or you have an old fac­tory turbo car that’s lost its puff. This very quick di­ag­nos­tic method is sim­ple, foolproof, cheap as chips, and nine times out of ten the fix is as sim­ple as tight­en­ing up a rogue hose clamp. If your car is leak­ing boost, then your turbo will be work­ing over­time at­tempt­ing to com­pen­sate for that loss of pres­sure. If your car has an air flow me­ter it will have ac­counted for that air com­ing in, caus­ing an over-fu­el­ing is­sue. If it’s MAP-based en­gine man­age­ment, then both the in­jec­tor cy­cle and tim­ing will be out, all of which are rob­bing you of those pre­cious kWs. Who knew it could all be so sim­ple? You’re wel­come.

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