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

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

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

talk to me in chat

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

if its 89, then its s5.

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.

did thay only come turbo ?

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

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

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

i thought a bunch of us just told you ?

ok i know sound like a dip **** but i dont know **** about the Ss

do the S5 rev higher jus tstart telling me the i have no clow https://www.nopistons.com/forums/pub...1047683358.gif

not to sound like a prick, but that alone should answers your question, the GTU is N/A. all GTU and GTUs Came N/A to my knowledge.

i dont even know what hes asking anymore? can you rethink your words to make more clarity in your sentences

the only thing that was turbo was the turboII's.

i concur.

ok i know im an ******* for that but still

I think they rev about the same, but whats the importance in that question?

but sitll what? what are you exactly asking? EVERY 89 was an S5 its part of the SERIES. SERIES 5.

no one said you were an *******



your words are getting jumbled and your spelling has lots of errors....i just can make out the questions







use spell check button at the bottom of the post window

The main difference is the VDI manifold. S4 intake manifold looks like all equal length, while s5 sort of has 2 short and 2 a little longer.

so one last thing from you all do think it is the S5 or not ?

thank you that is all i wanted to know. thanx to all

Lee already answered that in the 5th post, if its a 89 it is a S5

s5 means 89-91 year 2nd gens. So if you have an 89 then its an s5.

wow