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pulleys for newbie

kuntzie

kuntzie

New member
this is goin in a fiero

l26 (GT) bottom end
l32 (gen v) top end
3" straight through exhaust (not vey long either
power log
no t-stat
42.5 injectors
alky

also has xp cam


so how small of a pulley can we go? i dont want to have to run an intecooler in this hoe if i dont have to ,

the car went 12.70 onjust a 3.4 and the custom downpipe/ exhaust last year on a gen 3 blowerad l67 bottom end

i want to get down to 3" pulley if possible
 


how much timing are you running and what AFR?

That pretty much determines the pulley.

Fake math says +.2 for the L26 and another .2 for the Gen V.

XP cam nets you a 3.2

Powerlog, wouldnt do much at that point anymore, but the alky might let you get down to 3.1 or 3.0

Then you add in the .4 from high compression and the blower and you're back up at 3.4

Again, wont know till you try it.
 
its basiclly a drag car/ cruiser, with maybe 1500 miles a year, it has a walbro and will betuned at the 12.0 range

its 5-speed and im looking fo 400whp (that would be around 360 automata power log is far superior to the stock front mani, there is just no room for any aftermarket headers in there
 


pulley size doesnt matter.

If he wants the smallest pulley tell him to order MPS in 3.2, 3.1, 3.0 and see what happens.
 


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