TT engine identification

Ok guys I may have a problem

to cut it short, how can easily I tell if the engine in have in my so called TT is from a NA.

There is turbo's, TT plenum ect.
But due to a abnormally high compression test, from 2 cyl in particular, and as MickW suggested, the engine might be from a NA with turbo's and TT plenum bolted on.

Ideas?

Thanks guys

 

check engine number, post up here, and that will be a dead give away for it

 

No prob, ill do that as soon as i get home.

I wont go any further with it til i know.

Cheers

 

have a quick look at the oil filter tree and have look if there are rubber hoses branching off it going forward. Also check the harmonic balancer and see if the very front belt has 3 ribs or 4. If its 4 its from a TT if its 3 its is an NA.

If there are oil cooling pipes going forward to an oil cooler in front of the radiator its a TT. If there are none its probably an NA

All this of course could have been changed during an engine swap but its unlikely if someone wanted a quick cheap job.

 

Engine Number, from what i could see, was
VG306866101

 

I can tell its not the engine that came with the car..

But is it a turbo engine?

 

I don't think we have info on engine numbers, as far as dates, NA or TT.

I think the only difference in the block is that a TT has a couple of oil feeds tapped into a gallery to feed the turbos. I remember asking Eric this and from memory that was the answer.

 

Where do i look for these?

 

These be even harder to see then the items Tekky mentioned.

Basically the oil feed lines to the turbos will go back to the block somewhere, I doubt anyone would try to tap and thread the block but then again they might, if it was a NA block something weird and wonderful would be required, but if you your not sure what stock looks like it may be hard for you to tell.

Back to the beginning what were your compression readings ?, was it repeated with a decent gauge ?

 

184 |----| 238
192 |----| 241
182 \___/ 168
▼
Front

 

Do you mean the belt onto the alternator?

 

Those numbers don't sound right

 

compressions

If they are true, I doubt it, if it was a horse you would go and shoot it

 

Yes i know, That leads me to think that its an NA with higher compression with turbos bolted on and a plenum.

But checked and rechecked, same result.

 

Your compression tester could be screwed

 

valves

valves must be sticking shut

 

I agree red goose herring chase off.

 

Alex, try the compression tester with your air compressor. See if it's in the same region as what the gauges on the compressor are saying.

 

Just done that at around 80 psi, matched up with the comptession tester almost perfect.

 

That is a possibility, if it were the situation, have you got any recommendations? Also I did just learn one of the previous owners spent quite a bit of money on the, mechanically in particular, not sure if that has anything to do with it. I am pretty confident it is a twin turbo engine now, calling Vic roads tomorrow to confirm.

Just say if it did finally kick over, having pressure that high could be bad for it in any way?