rx7kid2gtt

Can some one tell me how you know the diff betwen the 13b (S5) and just the 13b just by lookin at it in the car

FrestyleFC3S

between s4 and s5...you can look at the thermostat housing....its plastic = s5....metal = s4



if looking at turbo engines.... the s4 turbo is ht18 and smaller.... s5 is hx18 and larger ... i believe thats correct at least



the alts are diff..but i dont know exactly

rx7kid2gtt

ok i have 89 na GTU do you think it is S5 or S4

talk to me in chat

FrestyleFC3S

ive never seen your car...therefore i cant make a decision?

Leetheslacker

if its 89, then its s5.

Gen2RXSeven

unless there was a motor swap in the past, which I wouldn't understand why someone would swap a s4 in, I'd guess S5 if its a 89.

rx7kid2gtt

did thay only come turbo ?

FrestyleFC3S

also....since its nA...you can check out the 5th and 6th port actuators.....



s4 is electrical....s5 will be mechanical...i dont know the visual differences here though

FrestyleFC3S

what? no... you have an s5 non turbo? what?

rx7kid2gtt

well what are some of the things to look for to find out