[87StangLX]

Is it better to have high compression pistons with a twin screw supercharger or low compression? What about with a centri supercharger?
J/W

[87StangLX]

never mind!!! found a diff thread dat talks bout dis!! sry i'm still a little bit of a newb

[00vabchgt]

you want lower compression with forced induction. typically, lower for twin screw or roots type blowers than for centri blowers...

[MATT02GT]

High compression = N/A.... Low compression= boost

[BWAL]

each 1.0 compression drop (let's say from 9.0:1 to 8.0:1) you would be able to safely handle an extra 3 psi. of boost, as opposed to keeping your compression the same, if i remember correctly.

[itschristorres8]

are you sure its that much? 8.0:1 or 8.9:1
cuz 9.0 to 8.0 is a noticable difference

[BWAL]

Originally Posted by itschristorres8 are you sure its that much? 8.0:1 or 8.9:1 cuz 9.0 to 8.0 is a noticable difference

i'm not 100% sure, but i'm thinking that's what i read somewhere

[87StangLX]

k, so how much psi could a stock bottom end handle reliably? an not only that, but how much boost does a base model KB 2.2L s/c pump out?

[BWAL]

Originally Posted by 87StangLX k, so how much psi could a stock bottom end handle reliably? an not only that, but how much boost does a base model KB 2.2L s/c pump out?

it depends on what size pulley you opt for

[87StangLX]

first let us jus say that i stick with the supplied pulley. how would it be then? and if it would handle it fine, then what is the max pulley size that you think i could go with an still make the car streetable/reliable?

[BWAL]

Originally Posted by 87StangLX first let us jus say that i stick with the supplied pulley. how would it be then? and if it would handle it fine, then what is the max pulley size that you think i could go with an still make the car streetable/reliable?

when you order a new KB, you have to tell them which sized pulley you want

[87StangLX]

what size would you reccomend cuz i wanna make a good amount of power but no so much that i chance crackin the block or have some other kind of catastrophic failure? cuz i heard b4 that stock blocks on a 87 lx can handle 400 hp whereas another thread said that they could handle 500 hp.

[Devine]

Originally Posted by 87StangLX what size would you reccomend cuz i wanna make a good amount of power but no so much that i chance crackin the block or have some other kind of catastrophic failure? cuz i heard b4 that stock blocks on a 87 lx can handle 400 hp whereas another thread said that they could handle 500 hp.

I think above 400-450 it just depends on your environment. Some people have successfully run 550hp on these for a fair amount of time. I believe general rule of thumb is over 500hp = borrowed time.

[87StangLX]

so since my car has 120 k miles on it i am leanin toward boring it to .30 over and gettin all new internals (not sure what specs yet.... plz help), and probly some trickflow 65cc heads and top it all off with a KB. sound like a good plan? suggestions on internals are mich appreciated.

[87StangLX]

what cam would anyone reccommend for this set-up? i am not looking for something to lobey but still to wear it will give the car a distinct exhaust note and for it to work well with the trickflow heads and s/c. i've heard bout f 303, b 303, etc. but don't know what to get...