hey guys i just removed my engine and got it on a shortblock and the guy that i bought the car from said it had a s5 jspec engine even though its a s4, but the intercooller doesn't say rotory powered it has the normal words but i took it apart and found out that it has a s5 turbo, but could it just be the turbo? how can i find out if its a s5 and if its jspec , any ovious things i can look at? thnx

 

Fan has 10 blades instead of 8? Electric OMP and not macanical..although I guess it could have been switched.

 

wow, thats a crazy name fcsforme.....=)

 

You can't unless you have the original IC.


-Ted

 

I"ve noticed between the n/a's sitting around and my TII engine that usdm ones will have a little plate on top of the housings that say something like hirkojo japan or something like that, where as the jdm housings don't have plates on the top of the housings, and don't say anything. If it's an s5 engine the knock sensor should be above the front trailing sparkplug, if its an s4 it will be in the middle plate, under the oil filter neck.

 

The distance between the leading and trailing plug on each housing is greater on S5. Meaning the trailing plugs are closer to the leading on the S4. At least that's how the housings can be identified.

 

see if its missing air bypass valve on the top by the intercooler and some other emmisions doo-dads are missing to. i dont think they have an egr either.

 

is the coolent fill tube like one from a uspek or jspek.. jspek's have there overflo returns from the rad and the uspeks return from the filler neck

 

when u buy jspec motor ..u normally don't get a jspec radiator

 

The S5 turbo J-spec has no idle adjust bleed screw on the BAC & no passage for it on the UIM.
The J-spec also has no AWS.

 

i wasnt trying to say it came with the rad.. just saying that the filler neck on the jspek wont have a over flo nipple like the uspek's come with

 

thnx guys ill check it out tonight since the car is not at my house

also a question about lsds..would it be better to buy a kaaz or buy the rebuild plates from mazdatrix i know it would be cheaper to buy the plates but would it work as good as a kaaz or should i just pay a little more and get the kaaz
thnx again for the quick replys and the help

 

i do know that jspec ones have the brake booster line off the back firewall side of the intake manifold. also my jspec only has the low oil lever sender in the oil pan and not the oil thermo sender.

 

I would say the main giveaway would have to be the knock sensor on the housings, if they dont have em then its not an s5...

 

got it, guess its a s5 but not jspec, but i guess thats good enough for a s4 thnx alot guys