AS AN ADVOCATE OF '8V' ENGINES, VERSUS '16V'

? PLEASE DON'T FORGET 'MR.MCVITIES'......
THAT, WE ARE ONLY DIALLING IN ONLY 'ONE ' CAMSHAFT HERE,ON 'TURBO KILLER..THE SEQUEL'.
OF COURSE,DURING ANY 'EVOLUTION' THE QUEST FOR MORE POWER AND TORQUE,WHETHER N/A OR TURBO,MORE IMPORTANTLY RELIABILITY,IS THE GOVERNING FACTOR.
SINCE 1994,I BEGAN PREPARING RACE AND RALLY 8V FIAT UNO'S WITH SCREAMING 1300 MOTORS,WITH LSD,WHICH HAD BEEN ORIGINALLY BUILT FOR THE 'UNO CHALLENGE' BACK IN THE LATE EIGHTIES....ENGINES BUILT BY 'AVANTI MOTORSPORT'.
http://www.avanti-motorsport.com/profile.htm THESE LITTLE ENGINES,WERE PUTING OUT AROUND 90 BHP AT THE WHEELS,IN A CAR THAT WEIGHED LESS THAN 700 KG....
RATHER INTERESTINGLY (OR NOT),AN ALL 'NEW' 1300 8V ENGINE REBUILD BY 'AVANTI',ON A 'SEEMINGLY' WELL-USED MOTORSPORT FIAT 1300 ENGINE,RELEASED JUST 3 BHP MORE.....
THESE THINGS WOULD REV,TO NEARLY NINE GRAND,AND NEVER,EVER BLEW UP.....
AT A SIMILAR TIME,THE ACQUISITION OF A FOREST PREPARED, VERY QUICK 'SAAB V4' TOOK PLACE.
AFTER AROUND 12 MONTHS,I MANAGED TO 'BUZZ' THE ENGINE....... AND THE 'MOTORSPORT BUDGET' DICTATED THAT,I WOULD HAVE TO FIX IT....
THIS WAS PROBABALY MY FIRST 'HANDS ON' INTERVENTION INTO COMPETITION ENGINE INTERNALS,PREVIOUSLY DEALING WITH JUST STANDARD ROAD ENGINES....
IT WOULD BE A 'FAST' LEARNING CURVE,THE MECHANICAL ENGINEERING BACKGROUND,WAS INFINITELY BENEFICIAL....I CAN STILL REMEMBER CURIOUSLY PEERING INTO THE 'V4' CYLINDER HEAD PORTS,WHICH HAD INCREDIBLE AMOUNTS OF WORKMANSHIP DONE,AND IN SOME PLACES WERE 'PAPER THIN'....
IT MUST BE REMEBERED,THAT BY 1994? A 'SAAB V4',RALLY PREPARED,OR NOT? WAS CONSIDERED 'OLD HAT'?.........
AT THAT TIME,I CAN DISTINCTLY REMEMBER......A FRIEND OF MINE,WITH A 5 CYLINDER 2.2 AUDI COUPE? WHOM RATHER SCOFFED,AT THE LOOK, OF THE LITTLE BATTLE-SCARRED SAAB 96? RATHER LESS SO,WHEN I WAS PUSHING HIM TO MOVE OVER,AND LET ME PAST....
I ACTUALLY WEN'T TO VIEW&TEST DRIVE THE V4,ARRIVING IN A ROVER 825 V6 HONDA POWERED,AUTOMATIC.
'IT' COULD BARELY KEEP UP,WITH THE 96 EITHER.....
SADLY,I NEVER GOT THE V4 ON THE 'ROLLING ROAD'......AT THE TIME,THE 'COST' I CONSIDERED,TO BE A 'WASTE OF MONEY',WHICH WAS PUT TOWARDS YET ANOTHER 'ENTRY FEE',IN A STAGE RALLY.
OF COURSE NEXT UP CAME THE 'SAAB 99 EMS' RALLY CAR I BUILT,WITH AN ENGINE BUILT BY 'PHIL WILKS' SAAB DEALERS.FROM THE NORTH EAST,WITH HEAD PORTING AND STANDARD VALVE SIZES,WITH A 2.1 BORE.
153 BHP ON TWIN 40 DELLORTO'S,AND AROUND 135 LB/FT TORQUE....
THEN,THE ALL STEEL MINI 1380 WAS BUILT,GIVING JUST OVER 100 BHP,AT THE WHEELS. THIS WOULD ALSO REV,LIKE THE LITTLE FIATS......AN INCREDIBLY QUICK,IF NOT UTTERLY DEAFENING 'RELIABLE' MACHINE,TO BE COMPETITIVE IN.
ALBEIT WITH PRE-EMPTIVE, ANNUAL ENGINE REBUILDS,AS THE BIG-END SHELLS,WOULD TAKE A HAMMERING,AT THAT NEARING 10,000 RPM.
AND THEN,OF COURSE TO TURBO-CHARGING,AGAIN 99T 8V B20 ENGINES.....PUSHING THE STANDARD ENGINE COMPONENTS,YET AGAIN....IN MOTORSPORT.
AND NOW? I AM ABOUT TO ENTER THE REALMS OF 'DE-COMPRESSION' PLATES... IN BOTH TURBOCHARGED SAAB 8V AND 16V ENGINES.
MUCH DISCUSSION,HAS TAKEN PLACE,TAKING EXPERIENCE FROM KNOWLEGABLE HEADS.IT IS CERTAINLY A JUMP INTO THE 'UNKNOWN' WITH THE 99T B20 ENGINE.....WILL IT WORK? IT WILL HAVE A 'FLOWED BIG VALVE HEAD' HOWEVER...
AS FAR AS 'TURBO KILLER.....THE SEQUEL' GOES ?
WELL,THE BIGGEST ISSUE HERE,IS THAT WE HAVEN'T DECIDED YET? EXACTLY HOW,WE ARE GOING TO GET THE ''2.5 BOTTOM END'' BACK FROM SWEDEN....NOT THAT IT IS AN 'ISSUE'? RATHER THE 'WHEN AND,THE HOW'.....
MENTION WAS MADE IN A 'PREVIOUS POST' THAT 200 BHP,FROM A '2.0 PINTO' IS DONE 'RELATIVELY EASILY' ?
AS WE CAN SEE,FROM THE AMOUNT OF WORK,JUST IN THIS THREAD ALONE,ABOUT THE HEAD MACHINING AND PORTING,FLOW BENCH TESTING AND CALCULATIONS.....?
I WOULD BE RATHER HESITANT,TO TERM THIS WHOLE 'PROJECT' EASY......
FAR,FROM IT.....
A-SERIES,BMC,FIAT 1300 AND PINTO'S HAVE ALL BEEN DONE BEFORE......MANY TIMES OVER,SO IT IS 'EASIER' TO KNOW,WHAT WORK'S AND WHAT DOESN'T. INDEED GETTING 200 BHP FROM A PINTO N/A,USUALLY INVOLVES A MACHINED OFFSET CRANK,AND 2.2,OR 2.4 ENGINE CAPACITY.
'SAAB' TUNED ENGINES,ARE A LITTLE LESS PROMINENT.
MORE INTERESTING READING HERE....FROM THE VENERABLE 'DAVE VIZARD'& 'DAVE BAKER'.
NOTE PARTICULALRY DAVE BAKERS,COMMENTS ABOUT THE '8V VERSUS 16V' GOLF GTI ENGINE'S IN THE(BACK THEN) 'SLICK 50' CHAMPIONSHIP.......
https://www.pistonheads.com/gassing/top ... 096171&i=0AND 'NO' I STILL DON'T UNDERSTAND THE 'SCIENCE' OF IT ALL, I AM 'STILL' LEARNING....