Check the workshop manuals, the high output [xr6]motor generaly have more compression and higher lift cam, higher quality valve springs pluss some minor porting, higher fuel presure.Lower final drive also....
A 5 % better quality performance wise here and there overall adds up to a good package in the end...
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
I'm going down to Gas Research hopefully this Saturday morning to go over a few things...I know i'm going to be tempted by the turbo...but hey both super / turbo have their benefits - just depends on your application IMHO. Super is good for 'on tap' power ie around town, and turbo is good for more open roads where the lag is not so much an issue. Aw well, my 2c - but hey, I'm in the same boat - which way to go - super or turbs ??? =\
PS, I have only driven an AU Turbo I6 - don't know what a supercharged one is like to drive.
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